11-172 A single-pass crossflow heat exchanger with both fluids unmixed has water entering at 16°C and exiting at 33°C while oil (c=1.93 kJ/kg-K and p = 870 kg/m³) flowing at 0.19 m/min enters at 38°C and exits at 29°C. If the surface area of the heat exchanger is 20 m², determine (a) the NTU value and (b) the value of the overall heat transfer coefficient.
11-172 A single-pass crossflow heat exchanger with both fluids unmixed has water entering at 16°C and exiting at 33°C while oil (c=1.93 kJ/kg-K and p = 870 kg/m³) flowing at 0.19 m/min enters at 38°C and exits at 29°C. If the surface area of the heat exchanger is 20 m², determine (a) the NTU value and (b) the value of the overall heat transfer coefficient.
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
Section: Chapter Questions
Problem 1.1P
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At
11-172 A single-pass crossflow heat exchanger with both
fluids unmixed has water entering at 16°C and exiting at 33°C.
while oil (c= 1.93 kJ/kg-K and p= 870 kg/m³) flowing at
0.19 m³/min enters at 38°C and exits at 29°C. If the surface
area of the heat exchanger is 20 m², determine (a) the NTU
value and (b) the value of the overall heat transfer coefficient.
Oil flow
(unmixed)
FIGURE P11-172
Water flow
(unmixed)
X
https://ebook2book.
11-173 Air at 18°C (c, = 1006 J/kg-K) is to be heated to
58°C by hot oil at 80°C (c, = 2150 J/kg-K) in a crossflow heat
exchanger with air mixed and oil unmixed. The product of the
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