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Rate of heat transfer to evaporator from the chilled water Rate of heat transfer from condenser to the cooling water Rate of heat transfer to refrigerant in “Evaporator” using enthalpy values Rate of heat transfer from refrigerant in “Condenser” using enthalpy values Work input from the compressor to the refrigerant using enthalpy values

Rate of heat transfer to evaporator from the chilled water Rate of heat transfer from condenser to the cooling water Rate of heat transfer to refrigerant in “Evaporator” using enthalpy values Rate of heat transfer from refrigerant in “Condenser” using enthalpy values Work input from the compressor to the refrigerant using enthalpy values

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Given the table of results find the following. Give answers in KW.

Please show all working out and explain how you come up with values for h1, h2, h3, h4 (eg which table used)

  1. Rate of heat transfer to evaporator from the chilled water
  2. Rate of heat transfer from condenser to the cooling water
  3. Rate of heat transfer to refrigerant in “Evaporator” using enthalpy values
  4. Rate of heat transfer from refrigerant in “Condenser” using enthalpy values
  5. Work input from the compressor to the refrigerant using enthalpy values
Given the table of results find Parameters Measured values Units Following experimental data is for R134a Press. compressor inlet (P1) 307 Absolute Pressure kPa Press. compressor outlet (P2a) 877 Absolute Pressure kPa Press. before exp. valve (P3) 862 Absolute Pressure kPa Press. after exp. valve (P4) 317 Absolute Pressure kPa Temp. after evap. (T1) 5.35 Temp. before condenser (T2a) 68 Temp. after condenser (T3) 32.4 Temp. atter exp. Valve (T4) 2.25 Refrigerant flow rate (d kg/min 0.58 Following experimental data is for Water that is getting chilled or heated Temp. into condenser (T.) 25 Temp. out af condenser (Ta) 40 Temp. into evaporator (T) 31 Temp. out of avaporator (Ta) 19 Condenser water flow rate 0.77 kg/min Evaporator water flow rate 0.75 kg/min (al Compressors supply | electrical power 450 Barometric reading 761 mm Hg
Transcribed Image Text:Given the table of results find Parameters Measured values Units Following experimental data is for R134a Press. compressor inlet (P1) 307 Absolute Pressure kPa Press. compressor outlet (P2a) 877 Absolute Pressure kPa Press. before exp. valve (P3) 862 Absolute Pressure kPa Press. after exp. valve (P4) 317 Absolute Pressure kPa Temp. after evap. (T1) 5.35 Temp. before condenser (T2a) 68 Temp. after condenser (T3) 32.4 Temp. atter exp. Valve (T4) 2.25 Refrigerant flow rate (d kg/min 0.58 Following experimental data is for Water that is getting chilled or heated Temp. into condenser (T.) 25 Temp. out af condenser (Ta) 40 Temp. into evaporator (T) 31 Temp. out of avaporator (Ta) 19 Condenser water flow rate 0.77 kg/min Evaporator water flow rate 0.75 kg/min (al Compressors supply | electrical power 450 Barometric reading 761 mm Hg
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