Heating, Ventilation, and Air Conditioning: Analysis and Design
6th Edition
ISBN: 9781119628798
Author: Faye C. McQuiston; Jerald D. Parker; Jeffrey D. Spitler
Publisher: Wiley Global Education US
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Chapter 1, Problem 1.11P
Compute the heat transferred from water as it flows through a heat exchanger at a steady rate of 1 m3/s. The decrease in temperature of the water is 5 C, and the mean bulk temperature is 60 C. Use SI units.
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Pinch temperature at hot stream is 70C, while at cold stream is 60C
2 m^3/min of a light oil are to be heated from 20C to 100C (with zero vaporization) in an exchanger using 250 kPa steam of 90% quality. The heat losses to the surrounding air have been estimated to be 5% of the heat transferred from the condensing steam to the oil. If the steam condensate leaves at its saturation point, what mass of steam perhour will be used in the exchanger? For light oil, Specific gravity= 0.88Specific heat= 2.00 kJ/kg-KFor steam at 250 kPa,Saturated liquid: hf= 535.49 kJ/kgvf=0.001067 m^3/kgSaturated vapor: hg= 2716.8 kJ/kgvg= 0.7188 m^3/kg
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Chapter 1 Solutions
Heating, Ventilation, and Air Conditioning: Analysis and Design
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