Water (Cp = 4.183 kJ/kg-k) flowing at a rate of 0.8 kg/s enters a counter current heat exchanger at 310 K and is heated by an oil (Cp=1.89 kJ/kg-K) stream entering at 390 K at a rate of 2.9 kg/s. Total transfer area is 20 m². If the efficiency of the heat exchanger is 0.60, calculate the ff.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
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Water (Cp = 4.183 kJ/kg-k) flowing at a rate of 0.8 kg/s enters a counter current heat exchanger at 310 K and is heated
by an oil (Cp=1.89 kJ/kg-K) stream entering at 390 K at a rate of 2.9 kg/s. Total transfer area is 20 m?. If the efficiency
of the heat exchanger is 0.60, calculate the ff.
а.
Number of Transfer Unit (NTU)
b.
Overall heat transfer coefficient U.
The Height Equivalent of Theoretical Plate (HETP) if Heat Transfer Unit (HTU) is 0.85 for a 10-plate
absorption tower.
HETP=NTUXHTU per plate
С.
Transcribed Image Text:Water (Cp = 4.183 kJ/kg-k) flowing at a rate of 0.8 kg/s enters a counter current heat exchanger at 310 K and is heated by an oil (Cp=1.89 kJ/kg-K) stream entering at 390 K at a rate of 2.9 kg/s. Total transfer area is 20 m?. If the efficiency of the heat exchanger is 0.60, calculate the ff. а. Number of Transfer Unit (NTU) b. Overall heat transfer coefficient U. The Height Equivalent of Theoretical Plate (HETP) if Heat Transfer Unit (HTU) is 0.85 for a 10-plate absorption tower. HETP=NTUXHTU per plate С.
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