9th Edition

ISBN: 9781259822674

Author: Yunus A. Cengel Dr., Michael A. Boles

Publisher: McGraw-Hill Education

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Textbook Question

Chapter 11.10, Problem 23P

The manufacturer of an air conditioner claims a seasonal energy efficiency ratio (SEER) of 16 (Btu/h)/W for one of its units. This unit operates on the normal vapor-compression refrigeration cycle and uses refrigerant-22 as the working fluid. This SEER is for the operating conditions when the evaporator saturation temperature is −5°C and the condenser saturation temperature is 45°C. Selected data for refrigerant-22 are provided in the following table.

Chapter 11.10, Problem 23P, The manufacturer of an air conditioner claims a seasonal energy efficiency ratio (SEER) of 16

(a) Sketch the hardware and the T-s diagram for this air conditioner.
(b) Determine the heat absorbed by the refrigerant in the evaporator per unit mass of refrigerant-22, in kJ/kg.
(c) Determine the work input to the compressor and the heat rejected in the condenser per unit mass of refrigerant22, in kJ/kg.

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Chapter 11.10, Problem 22P

Chapter 11.10, Problem 24P

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Chapter 11 Solutions

Thermodynamics: An Engineering Approach

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Solution Summary: The author shows the hardware and T-s diagram for the air conditioner in Figure (1) and Figure (2). The heat absorbed by the refrigerant in the evaporator is h_1,

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