Tables for refrigerant of R134a in the domestic refrigerator

tabulates for refrigerant of R134a in the domestic refrigeratorCHAPTER -4RESULTS DISCUSSION4.1 Experimental modus operandi on caterpillar tread Refrigeration Tutor 4.1.1 Tables for refrigerant of R134a in the domestic refrigeratorTable reading taken from the process of R134a refrigerant place at heart the data-based setup. Note the reading of compressor water, mechanical device outlet condenser outlet, evaporator temperature pressure & of varied parameters within the setup. This is the normal domestic refrigerator having refrigerant one hundred eighty grams placed in the governing body.Table 4.1.1 Reading of R134a Refrigerant without Heat ExchangerThis is the heat money changer domestic refrigerator having refrigerant 150 grams placed in the system, experimental setup is same procedure is same as normal domestic refrigerator.Table 4.1.2 Reading of R134a Refrigerant with Heat Exchanger4.1.2 Tables for refrigerant of R410a in the domestic refrigeratorTable 4.1.2.1 Reading for R410a without Heat ExchangerTable reading taken from the experimental procedure of R410a refrigerant placed in the experimental setup. Note down reading as per procedure placed in third chapter-3This is the normal domestic refrigerator having refrigerant 120 grams placed in the systemTable 4.1.2.2 Reading for R410a Refrigerant with Heat ExchangerThis is the heat exchanger domestic refrigerator having refrigerant 105 grams placed in the system. Experimental setup is same procedure is same as normal domestic refrigerator.4.2 Calculation the Coefficient of Performance a refrigerator Tutor4.2.1 work out give away of R134a Normal Heat Exchanger internal RefrigeratorSample Calculation for R134a Normal RefrigeratorTaking valves from hedge 4.1.1 of future(a) parameterEvaporator temperature T1 0c-9.3 air pressure (bar) P10.55Compressor temperature (outlet) T2 0c57.5Pressure (bar) P211.72Condenser temperature (outlet)T3 0c44Pressure (bar) P311.03Taking reading and seeing enthalpy valu es from the data vade mecum with having refrigerant R134a PH graphEvaporator enthalpy H1585KJ/Kg KCompressor enthalpy H2615KJ/Kg KCondensed enthalpy H3460KJ/Kg KC.O.P (H1-H3)/(H2-H1)(585-460)/ (615-585)C.O.P4.16Sample Calculation for R134a with Heat Exchanger RefrigeratorTaking valves from table 4.1.2 of following parameterEvaporator temperature T1 0c-9.6Pressure (bar) P10.58Compressor temperature (outlet) T2 0c55.6Pressure (bar) P215.72Condenser temperature (outlet)T3 0c41.6Pressure (bar) P315.03Taking reading and seeing enthalpy values from the data handbook with having refrigerant R134a PH chartEvaporator enthalpy H1587KJ/Kg KCompressor enthalpy H2617KJ/Kg KCondensed enthalpy H3458KJ/Kg KC.O.P (H1-H3)/ (H2-H1)(587-458)/ (617-587)C.O.P4.3Table 4.2.1 C.O.P of R134a refrigerant with without H.E word form 4.2.1 represent Shows C.O.P of R134a refrigerant with without H.E4.2.2 Calcula behindg COP of R1410a Normal Heat Exchanger Domestic RefrigeratorSample Calculation for R410a Nor mal RefrigeratorTaking valves from table 4.1.2.1 of following parameterEvaporator temperature T1 0c-12Pressure (bar) P11.103Compressor temperature (outlet) T2 0c56.8Pressure (bar) P230Condenser temperature (outlet)T3 0c43.9Pressure (bar) P329.65Taking reading and seeing enthalpy values from the data handbook with having refrigerant R410a PH chartEvaporator enthalpy H1434.6KJ/Kg KCompressor enthalpy H2441KJ/Kg KCondensed enthalpy H3423KJ/Kg KC.O.P (H1-H3)/ (H2-H1)(434.6-423)/ (441-434.6)C.O.P1.81Sample Calculation for R410a with Heat Exchanger RefrigeratorTaking valves from table 4.1.2.2 of following parameterEvaporator temperature T1 0c-11.5Pressure (bar) P11.24Compressor temperature (outlet) T2 0c52.3Pressure (bar) P230.34Condenser temperature (outlet)T3 0c42.6Pressure (bar) P330.00Taking reading and seeing enthalpy values from the data handbook with having refrigerant R410a PH chartEvaporator enthalpy H1414.9KJ/Kg KCompressor enthalpy H2425.4KJ/Kg KCondensed enthalpy H3436.4KJ/K g KC.O.P (H1-H3)/ (H2-H1)(414.9-436.4)/ (414.9-425.4)C.O.P2.047Table 4.2.2 Represent C.O.P of R410a without With H.EFigure 4.2.2 Graph Shows COP Of R410a without With H.E4.3 Comparison of Discharge Temperature of R134 R410a Refrigerant4.3.1 Comparison of Discharge Temperature of R134a without With H.EFollowing table show difference between normal heat exchanger refrigeration tutor working of compressor discharge temperature thus shows the by using heat exchanger there is decrease in temperature . This leads to improve the performance of system compared to normal refrigerator tutorTable 4.3.1 Shows Compressor Discharge Temperature of Normal H.E TutorFigure 4.3.1 Graph Shows Compressor Discharge Temperature Difference4.3.2 Comparison of Discharge Temperature of R410a without With H.EFollowing table show difference between normal heat exchanger refrigeration tutor working of compressor discharge temperature thus shows the by using heat exchanger there is decrease in temperature . This leads to improve the performance of system compared to normal refrigerator tutorTable 4.3.2 Shows Compressor Discharge Temperature of Normal H.E SystemFigure 4.3.2 Graph Shows Compressor Discharge Temperature Difference4.4 Comparison of Refrigerator Tutor Running duration by Using Various Refrigerants in the System4.4.1 Comparing Running Time Consumption R134a Refrigerator Tutor Without With H.EWhen running of refrigerator tutor clock casts to get final refrigeration effect in the evaporator, when staring from end of cut-off sentence is taken by the refrigerator tutor.Table 4.4.1 Time Taken for Running R134a Refrigerator Tutor without with H.EIn this process found that time is decreased when tin the H.E refrigerator running time compared to normal refrigerator without H.E.Figure 4.4.1 Graph Shows Difference of Time Taken for Running Refrigeration system4.4.2 Comparing Running Time Consumption R410a Refrigerator Tutor Without With H.EWhen the running mode of refrigera tor tutor time calculate to get final refrigeration effect in the evaporator, when staring from end of cut-off time is taken by the refrigerator tutor .In this process found that time is decreased when tin the H.E refrigerator running time compared to normal refrigerator without H.E.Table 4.4.2 Time Taken for Running R410a Refrigerator without with H.EFigure No 4.4.2 Shows Difference of Time Taken For Running Refrigeration4.5 calculating Energy Consumption of Various Refrigerant using without with H.E4.5.1 Calculating the Energy Consumption for the Domestic Refrigerator for Running SystemBy giving electrical power to refrigerator tutor energy meter placed to output supply to calculate energy consumption .Taking the reading from table 4.1.14.1.2 evaporator, 5 innovation of energy meter in seconds. Hence calculate the energy consumption into hours.At -9c freezer point time taken for 5 renewal of energy meter is 60secondEnergy meter constant 1200 alteration 1 KW1200=3600Kj1 revol ution3600/1200 Kj/revFor 5 revolution (5*3600)/ (60*1200)Energy consumption 0.25Kw-hr Table 4.5.1 Reading of Energy Consumption (KW) of Domestic Refrigerator during operationFigure 4.5.1 Shows the Difference of Energy Consumption in Without With H.E4.5.2 Calculating the Energy Consumption for the Domestic Refrigerator for Running SystemBy giving electric power to refrigerator tutor energy meter placed to output supply to calculate energy consumption .Taking the reading from table 4.1.2.1 4.1.2.2 evaporator, 5 revolution of energy meter in seconds. Hence calculate the energy consumption into hours.At -10c freezer point time taken for 5 revolution of energy meter is 38.12secondEnergy meter constant 1200revolution 1 KW1200=3600KJ1 revolution3600/1200 KJ/revFor 5 revolution (5*3600)/ (38.12*1200)Energy consumption 0.393kw-hrTable 4.5.2 Reading of Energy Consumption (kw) of Domestic Refrigerator during OperationFreezer cut-off point OC-10-12-14.1-16.8-19.6R410a Without H.E0.3930.3850.3 83