Abstract:
The research used an experimental method by comparing the use of condenser separation
with addition subcooler and condenser 10 U. In the same process condensation was done
with the same condenser length with varying refrigerant discharge of 114x10
-6
m
3
/s,
131x10
-6
m
3
/s and 148x10
-6
m
3
/s. The study used a refrigerant LPG (Liquefied Petroleum
Gas) with a composition of 50% butane and propane 50%. The objective of study was to
analyze heat release rate values of both condensers on the coefficient of machine / COP
(Coefficient of Performance) value of the refrigerator. Research on the 114x10
-6
m
3
/s
refrigerant discharge resulted in average of heat release rate separation condenser with
addition subcooler higher than 10 U condenser with value of 0.000455727 kW.
Refrigerant discharge test 131x10
-6
m
3
/s, the average of heat release rate separation
condenser with addition subcooler is higher than the condenser 10 U of 0.000297211 kW.
Refrigerant discharge test 148x10
-6
m
3
/s, condenser 10 U yields average of heat release
rate value higher than separation condenser with addition subcooler amount of
0,014013777 kW. The average value of heat release rate by the condenser 10 U will have
the same trend value of COP, while at the separation condenser with addition subcooler
yielding a value which is inversely proportional to the COP yield, the lower of heat
release rate the resulting COP value will increase.
