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GATE ME · 2017 · ME-2

Question 46: Heat-Transfer

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Question 46

ME-2MCQ2 marksNeeds review
In a counter-flow heat exchanger, water is heated at the rate of 1.5 kg/s from 40 °C to 80 °C by an oil entering at 120 °C and leaving at 60 °C. The specific heats of water and oil are 4.2 kJ/kg·K and 2 kJ/kg·K, respectively. The overall heat transfer coefficient is 400 W/m

·K. The required heat transfer surface area (in m

) is
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2017ME-2

GATE ME 2017 · Paper 2

Mechanical Engineering · Original paper archive

Section
Section ME-2
Question type
Multiple choice (MCQ)
Marks
2 marks
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