UJI EKSPERIMENTAL MESIN PENDINGIN BERPENDINGIN AIR DENGAN MENGGUNAKAN REFRIGERAN R22 DAN REFRIGERAN R407C
Abstract: The human needs of
refrigeration system have created a tool that called a refrigerator. Refrigerator/cooling
machine have a component which have a very important role in the refrigerationsystem
that is refrigerant. Refrigerant that still widely used for cooling machine
until now is the refrigerant R22. Using R22 refrigerant can cause environmental
problems such as damage to the ozone layer and global warming. Therefore, it
needs a substitution refrigerant which is more friendly forenvironment which
one of them is R407C refrigerant. In this study, using a cooling machine with
watercooled condenser and the flowrate that use is 20 L/h, 40 L/h, 80 L/h and
120 L/h. The variables that measured in this study is temperature (T1, T2, T3,
T4, T10, T11), pressure (P1, P2, P3, P4), and ampere. Thisstudy aims to get the
test results using refrigerants R22 and R407C. The processing data of the test
result include refrigeration capacity, compressor power and COP. The results
obtained have that cooling machine which use R22 refrigerants have a better COP
than using R407C refrigerant. This is happen because the power needed by the
compressor to compress R407C refrigerant to flow in the system is greater than
using R22 refrigerant.
Penulis: Terry Gunawan, Harto
Tanujaya dan Asrul Aziz
Kode Jurnal: jptmesindd140644
