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What is lumped heat capacity analysis? List out the assumptions made in lumped heat capacity analysis.
Derive expression for temperature distribution under one dimensional steady state heat conduction for plane wall.
Derive the two dimensional energy equation for thermal boundary layer over a flat plate.
Explain that heat transfer coefficient for free convection is lower than forced convection.
State Stephen Boltzman law. Determine the surface temperature of sun and emissive power at that temperature when the sun emits radiation at λ =0.52 μm. Assuming sun as black body.
In counter flow heat exchanger, 2.78 kg/sec of an oil having specific heat of 2.095 kJ/kg K is cooled from 80⁰C to 50⁰C by 2.22 kg/sec of water entering at 25⁰C. Determine the area of heat exchanger. Take U = 300 W/m²K and CP = 4.18 kJ/kg K.
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BE Mechanical
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Official Gujarat Technological University (GTU) examination paper for Heat Transfer (Winter 2025, B.E. · Mechanical Engineering, Sem 5). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.
3151909 Heat Transfer
Official GTU PDF · Winter 2025
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