A device is designed to cool 0.14kg/s of hot liquid of specific heat 3KJ/kgK at100∘C using a parallel flow arrangement. The cooling water of specific heat 4.18k/kgK is available for cooling purpose at the rate of 0.54kg/s at a temperature of 10∘C. The effectiveness of heat exchanger is (take overall heat transfer coefficient is1360W/m2K and the surface area of the heat exchanger isa)0.6b)0.64Correct answer is between '0.6,0.64'. Can you explain this answer?

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A device is designed to cool 0.14kg/s of hot liquid of specific heat 3KJ/kgK at

100∘C using a parallel flow arrangement. The cooling water of specific heat 4.18k/kgK is available for cooling purpose at the rate of 0.54kg/s at a temperature of 10^∘C. The effectiveness of heat exchanger is (take overall heat transfer coefficient is

1360W/m²K and the surface area of the heat exchanger is

a)
0.6
b)
0.64

Correct answer is between '0.6,0.64'. Can you explain this answer?

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Practice Test: Mechanical Engineering (ME)- 14

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A device is designed to cool 0.14kg/s of hot liquid of specific heat ...

Given, Mass flow rate of hot liquid, m_n=0.14kg/s Specific heat of hot liquid, c_n=3KJ/kgK Mass flow rate of cooling water, mc=0.54kg/s Inlet temperature of hot liquid,

T_h,i=100^∘C Inlet temperature of cooling water, T_c,i=10^∘C Overall heat transfer coefficient, U=1360W/m²K Surface area of the heat exchanger, A=0.35m2 The effectiveness of heat exchanger in parallel flow arrangement,

Where, NTU = no. of transfer unit =

C = heat capacity rate For hot liquid, Cn = mn × cn = 0.14 × 3000 = 420 W/K For

cooling water, Cc = mc × cc = 0.54 × 4180 = 2257.2W/K

Cmin = Ch = 420W/K

Cmax = Cc = 2257.2W/K

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A device is designed to cool 0.14kg/s of hot liquid of specific heat 3KJ/kgK at100∘C using a parallel flow arrangement. The cooling water of specific heat 4.18k/kgK is available for cooling purpose at the rate of 0.54kg/s at a temperature of 10∘C. The effectiveness of heat exchanger is (take overall heat transfer coefficient is1360W/m2K and the surface area of the heat exchanger isa)0.6b)0.64Correct answer is between '0.6,0.64'. Can you explain this answer?

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A device is designed to cool 0.14kg/s of hot liquid of specific heat 3KJ/kgK at100∘C using a parallel flow arrangement. The cooling water of specific heat 4.18k/kgK is available for cooling purpose at the rate of 0.54kg/s at a temperature of 10∘C. The effectiveness of heat exchanger is (take overall heat transfer coefficient is1360W/m2K and the surface area of the heat exchanger isa)0.6b)0.64Correct answer is between '0.6,0.64'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about A device is designed to cool 0.14kg/s of hot liquid of specific heat 3KJ/kgK at100∘C using a parallel flow arrangement. The cooling water of specific heat 4.18k/kgK is available for cooling purpose at the rate of 0.54kg/s at a temperature of 10∘C. The effectiveness of heat exchanger is (take overall heat transfer coefficient is1360W/m2K and the surface area of the heat exchanger isa)0.6b)0.64Correct answer is between '0.6,0.64'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A device is designed to cool 0.14kg/s of hot liquid of specific heat 3KJ/kgK at100∘C using a parallel flow arrangement. The cooling water of specific heat 4.18k/kgK is available for cooling purpose at the rate of 0.54kg/s at a temperature of 10∘C. The effectiveness of heat exchanger is (take overall heat transfer coefficient is1360W/m2K and the surface area of the heat exchanger isa)0.6b)0.64Correct answer is between '0.6,0.64'. Can you explain this answer?.

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