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HEAT:010117Spherical shell r1=1 m, r2=2 m: equal resistances 1/(8π), Q=400π W, T=100(1 m/r) °C

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Heat Spherical Shell Series ResistanceHeat Radial Fourier Integration

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Steady conduction and thermal resistanceHeat Transfer · Mixed review

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HEAT:010118Generating solid cylinder R=1 m: surface flux 4 W/m², Ts=22 °C, Tcenter=23 °C

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Heat Cylinder Generation Surface FluxHeat Radial Poisson Centerline Rise

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Steady conduction and thermal resistanceHeat Transfer · Mixed review

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HEAT:010219Lump Cth=1000 J/K, hA=10 W/K: T=20+80 e^{-t/100}, time to 40 °C is 100 ln 4 s

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Heat Lumped Capacitance ExponentialHeat Lumped Time And Energy Lost

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Fins and transient conductionHeat Transfer · Mixed review

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HEAT:010220Semi-infinite step to 100 °C: η=1, T=100-80 erf 1, surface flux 80000/√π W/m²

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Heat Semi Infinite Erf SimilarityHeat Semi Infinite Surface Energy

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Fins and transient conductionHeat Transfer · Mixed review

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HEAT:010221Two C=1 lumps with H=G=1: θ1=5e^{-t}+5e^{-3t}, total excess energy 10e^{-t}

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Heat Two Lump Modal DecompositionHeat Two Lump Common Mode Energy

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Fins and transient conductionHeat Transfer · Mixed review

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HEAT:010322Fully developed laminar tube at constant q'': h=100, Tout=302 K, outlet wall 312 K

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Heat FD Laminar Constant Flux NusseltHeat Tube Energy Balance Wall Bulk

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External and internal convectionHeat Transfer · Mixed review

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HEAT:010323Constant wall 400 K internal flow: Tout=375 K, Q=750 W, LMTD=75/ln 4, UA=10 ln 4

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Heat Constant Wall Exponential MeanHeat Internal Flow Lmtd Closure

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External and internal convectionHeat Transfer · Mixed review

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HEAT:010424Infinite gray plates eps=1/2 and 1/4: network denominator 5 and q''=3 sigma 300^4

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Heat Gray Plate Radiosity NetworkHeat Black Limit Radiation Exchange

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Thermal radiation and enclosure exchangeHeat Transfer · Mixed review

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HEAT:010425One black shield between black 600/300 plates: Ts=300(17/2)^{1/4} and half the no-shield flux

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Heat Black Shield Fourth Power BalanceHeat Series Radiation Space Resistances

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Thermal radiation and enclosure exchangeHeat Transfer · Mixed review

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HEAT:010426Selective solar absorber: T=(4000/sigma)^{1/4}, hotter than gray by sqrt(2)

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Heat Selective Solar Energy BalanceHeat Gray Limit Fourth Root Ratio

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Thermal radiation and enclosure exchangeHeat Transfer · Mixed review

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HEAT:010527Parallel-flow exchanger with UA=ln 4: Cr=1/2, epsilon=7/12, Q=140/3 kW

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Heat Parallel Flow Ntu EffectivenessHeat Two Stream Outlet Balance

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Heat exchangers and effectiveness methodsHeat Transfer · Mixed review

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HEAT:010528Phase-change cold side at 20 C: NTU=1, epsilon=1-e^{-1}, UA LMTD closes

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Heat Phase Change CR Zero NtuHeat Lmtd UA Product Closure

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Heat exchangers and effectiveness methodsHeat Transfer · Mixed review

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HEAT:010529Clean U=1000 plus fouling R=0.001: U_f=500 and the required area doubles

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Heat Fouling Overall CoefficientHeat Fixed Duty Area Scaling

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Heat exchangers and effectiveness methodsHeat Transfer · Mixed review

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HEAT:010630Three interior FD nodes with unit source: solution (3/2, 2, 3/2) and flux sum 3

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Heat Second Difference Poisson SolveHeat Discrete Flux Source Balance

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Coupled modes and numerical heat transferHeat Transfer · Mixed review

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HEAT:010631FTCS on (0,100,0): Fo=1/2 oscillates nonnegatively; Fo=0.6 goes negative

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Heat Ftcs Three Node MarchHeat Fourier Number Stability Bound

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Coupled modes and numerical heat transferHeat Transfer · Mixed review

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906011A furnace wall of area 1.8 m² has an inner surface temperature of 420 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906012The interior of a 3.2 m × 2.4 m room wall is at 22 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906013A long electrical cable of 8.0 mm outer diameter has a surface temperature of 55 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906014A 0.15 m diameter spherical vessel contains a process fluid.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906015A black surface of area 0.20 m² is at 127 °C and faces large surroundings at 17 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906016A gray, diffuse plate (ε = 0.65, A = 0.45 m²) is at 80 °C in large surroundings at 10 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906017A 5.0 mm thick glass pane (k = 1.4 W/m·K) has an indoor face at 18 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906018Heat is generated uniformly at 2.4 × 10⁵ W/m³ in a 10 mm thick plate of k = 18 W/m·K.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906019A 0.50 kg aluminum block (c = 900 J/kg·K) is initially at 180 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906020Water flows through a thin-walled tube.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906021A 2.0 m × 1.5 m roof is covered with 40 mm of insulation (k = 0.038 W/m·K).

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906022Three plane layers are stacked in series over an area of 0.80 m²: 8 mm of material A (k_A = 0.90 W/m·K), 15 mm of m…

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906023A 4.0 mm steel sheet (k = 45 W/m·K) has one face at 200 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906024An oven door of area 0.60 m² has an overall thermal resistance of 0.42 K/W between the inner and outer surfaces.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906025Two surfaces of a 25 mm thick slab are at 60 °C and 20 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906026A 1.00 m² contact joint between two metal blocks has a measured temperature drop of 8.5 °C when the heat transfer r…

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906027A closed tank of surface area 3.6 m² contains a two-phase mixture at 120 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906028A 0.20 m × 0.20 m silicon wafer (k = 148 W/m·K) is 0.75 mm thick.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906029Steady energy transfer occurs through a plane wall of area 1.2 m².

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906030A 12 mm thick plane wall of fireclay brick (k = 1.0 W/m·K) has one face held at 620 °C and the opposite face held a…

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906031A large plane slab of unknown conductivity is 8 mm thick.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906032A 6 mm glass pane (k = 1.4 W/m·K) separates indoor air at 22 °C from outdoor air at −8 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906033The inner surface of a 15 mm plane wall (k = 0.85 W/m·K) is maintained at 140 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906034A furnace wall consists of an 80 mm inner layer of firebrick (k = 1.2 W/m·K) and a 40 mm outer layer of insulating…

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906035A composite plane wall has three layers in series: 10 mm stainless steel (k = 15 W/m·K), 25 mm mineral wool (k = 0.…

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Problem library

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Topic choices for Heat Transfer are shortened. Search still covers every problem.

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HEAT:010117Spherical shell r1=1 m, r2=2 m: equal resistances 1/(8π), Q=400π W, T=100(1 m/r) °C

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Heat Spherical Shell Series ResistanceHeat Radial Fourier Integration

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Steady conduction and thermal resistanceHeat Transfer · Mixed review

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HEAT:010118Generating solid cylinder R=1 m: surface flux 4 W/m², Ts=22 °C, Tcenter=23 °C

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Heat Cylinder Generation Surface FluxHeat Radial Poisson Centerline Rise

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Steady conduction and thermal resistanceHeat Transfer · Mixed review

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HEAT:010219Lump Cth=1000 J/K, hA=10 W/K: T=20+80 e^{-t/100}, time to 40 °C is 100 ln 4 s

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Heat Lumped Capacitance ExponentialHeat Lumped Time And Energy Lost

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Fins and transient conductionHeat Transfer · Mixed review

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HEAT:010220Semi-infinite step to 100 °C: η=1, T=100-80 erf 1, surface flux 80000/√π W/m²

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Heat Semi Infinite Erf SimilarityHeat Semi Infinite Surface Energy

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Fins and transient conductionHeat Transfer · Mixed review

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HEAT:010221Two C=1 lumps with H=G=1: θ1=5e^{-t}+5e^{-3t}, total excess energy 10e^{-t}

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Heat Two Lump Modal DecompositionHeat Two Lump Common Mode Energy

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Fins and transient conductionHeat Transfer · Mixed review

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HEAT:010322Fully developed laminar tube at constant q'': h=100, Tout=302 K, outlet wall 312 K

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Heat FD Laminar Constant Flux NusseltHeat Tube Energy Balance Wall Bulk

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External and internal convectionHeat Transfer · Mixed review

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HEAT:010323Constant wall 400 K internal flow: Tout=375 K, Q=750 W, LMTD=75/ln 4, UA=10 ln 4

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Heat Constant Wall Exponential MeanHeat Internal Flow Lmtd Closure

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External and internal convectionHeat Transfer · Mixed review

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HEAT:010424Infinite gray plates eps=1/2 and 1/4: network denominator 5 and q''=3 sigma 300^4

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Heat Gray Plate Radiosity NetworkHeat Black Limit Radiation Exchange

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Thermal radiation and enclosure exchangeHeat Transfer · Mixed review

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HEAT:010425One black shield between black 600/300 plates: Ts=300(17/2)^{1/4} and half the no-shield flux

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Heat Black Shield Fourth Power BalanceHeat Series Radiation Space Resistances

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Thermal radiation and enclosure exchangeHeat Transfer · Mixed review

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HEAT:010426Selective solar absorber: T=(4000/sigma)^{1/4}, hotter than gray by sqrt(2)

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Heat Selective Solar Energy BalanceHeat Gray Limit Fourth Root Ratio

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Thermal radiation and enclosure exchangeHeat Transfer · Mixed review

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HEAT:010527Parallel-flow exchanger with UA=ln 4: Cr=1/2, epsilon=7/12, Q=140/3 kW

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Heat Parallel Flow Ntu EffectivenessHeat Two Stream Outlet Balance

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Heat exchangers and effectiveness methodsHeat Transfer · Mixed review

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HEAT:010528Phase-change cold side at 20 C: NTU=1, epsilon=1-e^{-1}, UA LMTD closes

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Heat Phase Change CR Zero NtuHeat Lmtd UA Product Closure

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Heat exchangers and effectiveness methodsHeat Transfer · Mixed review

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HEAT:010529Clean U=1000 plus fouling R=0.001: U_f=500 and the required area doubles

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Heat Fouling Overall CoefficientHeat Fixed Duty Area Scaling

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Heat exchangers and effectiveness methodsHeat Transfer · Mixed review

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HEAT:010630Three interior FD nodes with unit source: solution (3/2, 2, 3/2) and flux sum 3

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Heat Second Difference Poisson SolveHeat Discrete Flux Source Balance

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Coupled modes and numerical heat transferHeat Transfer · Mixed review

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HEAT:010631FTCS on (0,100,0): Fo=1/2 oscillates nonnegatively; Fo=0.6 goes negative

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Heat Ftcs Three Node MarchHeat Fourier Number Stability Bound

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Coupled modes and numerical heat transferHeat Transfer · Mixed review

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906011A furnace wall of area 1.8 m² has an inner surface temperature of 420 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906012The interior of a 3.2 m × 2.4 m room wall is at 22 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906013A long electrical cable of 8.0 mm outer diameter has a surface temperature of 55 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906014A 0.15 m diameter spherical vessel contains a process fluid.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906015A black surface of area 0.20 m² is at 127 °C and faces large surroundings at 17 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906016A gray, diffuse plate (ε = 0.65, A = 0.45 m²) is at 80 °C in large surroundings at 10 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906017A 5.0 mm thick glass pane (k = 1.4 W/m·K) has an indoor face at 18 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906018Heat is generated uniformly at 2.4 × 10⁵ W/m³ in a 10 mm thick plate of k = 18 W/m·K.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906019A 0.50 kg aluminum block (c = 900 J/kg·K) is initially at 180 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906020Water flows through a thin-walled tube.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906021A 2.0 m × 1.5 m roof is covered with 40 mm of insulation (k = 0.038 W/m·K).

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906022Three plane layers are stacked in series over an area of 0.80 m²: 8 mm of material A (k_A = 0.90 W/m·K), 15 mm of m…

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906023A 4.0 mm steel sheet (k = 45 W/m·K) has one face at 200 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906024An oven door of area 0.60 m² has an overall thermal resistance of 0.42 K/W between the inner and outer surfaces.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906025Two surfaces of a 25 mm thick slab are at 60 °C and 20 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906026A 1.00 m² contact joint between two metal blocks has a measured temperature drop of 8.5 °C when the heat transfer r…

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906027A closed tank of surface area 3.6 m² contains a two-phase mixture at 120 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906028A 0.20 m × 0.20 m silicon wafer (k = 148 W/m·K) is 0.75 mm thick.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906029Steady energy transfer occurs through a plane wall of area 1.2 m².

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906030A 12 mm thick plane wall of fireclay brick (k = 1.0 W/m·K) has one face held at 620 °C and the opposite face held a…

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906031A large plane slab of unknown conductivity is 8 mm thick.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906032A 6 mm glass pane (k = 1.4 W/m·K) separates indoor air at 22 °C from outdoor air at −8 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906033The inner surface of a 15 mm plane wall (k = 0.85 W/m·K) is maintained at 140 °C.

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906034A furnace wall consists of an 80 mm inner layer of firebrick (k = 1.2 W/m·K) and a 40 mm outer layer of insulating…

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Steady ConductionHeat Transfer Problem Solving

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Steady conduction and thermal resistanceHeat Transfer · Calculation

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HEAT:9906035A composite plane wall has three layers in series: 10 mm stainless steel (k = 15 W/m·K), 25 mm mineral wool (k = 0.…

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Steady ConductionHeat Transfer Problem Solving

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Problem results

HEAT:9906001A 12 mm thick copper plate (k = 401 W/m·K) has uniform face temperatures of 85 °C and 22 °C.

HEAT:9906002Steady one-dimensional conduction occurs through a 0.025 m thick slab whose thermal conductivity is unknown.

HEAT:9906003A laboratory specimen 8.0 cm long and 2.0 cm in diameter is insulated on its curved surface so that heat flows only…

HEAT:9906004A 3.0 mm thick polymer film (k = 0.22 W/m·K) covers a 0.80 m² surface.

HEAT:9906005Two large parallel plates, each 1.20 m × 0.90 m, are separated by a 4.0 mm air gap (k_air = 0.028 W/m·K).

HEAT:9906006A composite plane wall consists of 20 mm of brick (k = 0.72 W/m·K) bonded to 12 mm of plaster (k = 0.48 W/m·K).

HEAT:9906007A 15 mm stainless-steel plate (k = 15 W/m·K) is sandwiched between two 8.0 mm aluminum plates (k = 177 W/m·K).

HEAT:9906008Two 10 mm copper plates (k = 385 W/m·K) are pressed together over a 0.050 m² interface.

HEAT:9906009A 6.0 mm aluminum wall (k = 204 W/m·K) joins a 9.0 mm steel wall (k = 42 W/m·K) over an area of 0.30 m².

HEAT:9906010An electronic package dissipates 18 W through a 40 mm × 40 mm base into a cold plate.

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Problem results

HEAT:9906001A 12 mm thick copper plate (k = 401 W/m·K) has uniform face temperatures of 85 °C and 22 °C.

HEAT:9906002Steady one-dimensional conduction occurs through a 0.025 m thick slab whose thermal conductivity is unknown.

HEAT:9906003A laboratory specimen 8.0 cm long and 2.0 cm in diameter is insulated on its curved surface so that heat flows only…

HEAT:9906004A 3.0 mm thick polymer film (k = 0.22 W/m·K) covers a 0.80 m² surface.

HEAT:9906005Two large parallel plates, each 1.20 m × 0.90 m, are separated by a 4.0 mm air gap (k_air = 0.028 W/m·K).

HEAT:9906006A composite plane wall consists of 20 mm of brick (k = 0.72 W/m·K) bonded to 12 mm of plaster (k = 0.48 W/m·K).

HEAT:9906007A 15 mm stainless-steel plate (k = 15 W/m·K) is sandwiched between two 8.0 mm aluminum plates (k = 177 W/m·K).

HEAT:9906008Two 10 mm copper plates (k = 385 W/m·K) are pressed together over a 0.050 m² interface.

HEAT:9906009A 6.0 mm aluminum wall (k = 204 W/m·K) joins a 9.0 mm steel wall (k = 42 W/m·K) over an area of 0.30 m².

HEAT:9906010An electronic package dissipates 18 W through a 40 mm × 40 mm base into a cold plate.