GATE CH · 2019 · CH
Question 43: Heat Transfer
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Question 43
CHNAT2 marksNeeds review
Stream A with specific heat capacity
J/(kg K) is cooled from 90 °C to 45 °C in a concentric double pipe counter current heat exchanger having a heat transfer area of 8 m². The cold stream B of specific heat capacity
J/(kg K) enters the exchanger at a flow rate of 1 kg/s and 40 °C. The overall heat transfer coefficient
W/(m² K). Assume that the mean driving force is based on the arithmetic mean temperature difference, that is
where
and
refer to the temperature of the
stream (
) at the inlet and exit, respectively. The mass flow rate of stream A (in kg/s), is __________ (rounded off to two decimal places).Log in to check the answer
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2019CH
GATE CH 2019 · Paper 1
Chemical Engineering · Original paper archive
- Section
- Chemical Engineering
- Question type
- Numerical answer (NAT)
- Marks
- 2 marks
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