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At the commencement of compression in the reciprocating compressor of a refrigeration plant the refrigerant is dry saturated at 1 bar. The compression process follows the law pV = constant until the pressure is 10 bar. Using the properties of refrigerant given in the table, interpolating where necessary, calculate: (a) the work done on the refrigerant during the process (b) the change of internal energy on the refrigerant during the process (c) the heat transfer through the cylinder wall during the process Saturation values Superheat values at 10 bar P br hg V h bar °C m'/kg kJ/kg m'/kg kJ/kg 1 -30 0.160 8.9 174.2 10 42 0.018 76.3 203.8 0.020 224.0

At the commencement of compression in the reciprocating compressor of a refrigeration plant the refrigerant is dry saturated at 1 bar. The compression process follows the law pV = constant until the pressure is 10 bar. Using the properties of refrigerant given in the table, interpolating where necessary, calculate: (a) the work done on the refrigerant during the process (b) the change of internal energy on the refrigerant during the process (c) the heat transfer through the cylinder wall during the process Saturation values Superheat values at 10 bar P br hg V h bar °C m'/kg kJ/kg m'/kg kJ/kg 1 -30 0.160 8.9 174.2 10 42 0.018 76.3 203.8 0.020 224.0

Introduction to Chemical Engineering Thermodynamics
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 the commencement of compression in the reciprocating compressor of a refrigeration plant the refrigerant is dry saturated at 1 bar. The compression process follows the law pV = constant until the pressure is 10 bar. Using the properties of refrigerant given in the table, interpolating where necessary, calculate: (a) the work done on the refrigerant during the process (b) the change of internal energy on the refrigerant during the process (c) the heat transfer through the cylinder wall during the process Saturation values Superheat values at 10 bar P bar hr he kJkg V h °C m'/kg 0.160 m'/kg kJ/kg 1 -30 8.9 174.2 10 42 0.018 76.3 203.8 0.020 224.0
Transcribed Image Text:At the commencement of compression in the reciprocating compressor of a refrigeration plant the refrigerant is dry saturated at 1 bar. The compression process follows the law pV = constant until the pressure is 10 bar. Using the properties of refrigerant given in the table, interpolating where necessary, calculate: (a) the work done on the refrigerant during the process (b) the change of internal energy on the refrigerant during the process (c) the heat transfer through the cylinder wall during the process Saturation values Superheat values at 10 bar P bar hr he kJkg V h °C m'/kg 0.160 m'/kg kJ/kg 1 -30 8.9 174.2 10 42 0.018 76.3 203.8 0.020 224.0
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