ANALISA PENGARUH BENTUK LEKUKAN PIPA KAPILER DAN DIAMETER BERBEDA TERHADAP SUHU EVAPORATOR PADA REFRIGERATOR JENIS DISPENSER

Ninik Martini, Catur Hari Sabtadi

Abstract


Dispenser is an electronic device to drain the water of gallons of water into the cup or glass that can
automatically heats and cools water that is ready to drink. Also called water cooler dispenser (water cooler), but
along with the development of technology and the increasing complexity of human needs, the dispenser is not only
used to cool water, dispenser also can heat the water using a heater. On the dispenser there is a straight capillary
tube where the capillary tube is one of the important components in the engine cooler (dispenser) and had a
considerable influence on the size of the resulting temperature on the evaporator. This study used a variation in
capillary tube spiral shape and forms a straight capillary tube with a diameter of 0.026 cm pipe; 0.028 cm; 0.031
cm and a fixed length of 100 cm.
The results were obtained in the form of a capillary tube straight with the lowest temperature evaporator is
generated at 0,026 cm diameter pipe, with a temperature of - 10
0
C and the resulting high temperature evaporator
in the form of straight capillary tube with a pipe diameter of 0.031 cm, with a temperature of 0
C. And achievement
coefficient (COP), which is the highest form of straight capillary tube with a diameter of 0.026 cm, with a value of
COP = 13.896. and value is the lowest COP spiral shape of the capillary tube with a diameter of 0.028 cm, with a
value of COP = 10.761.

Keyword : Capilary Tube ,Coefficient Of Performance (COP), Temperature of Evaporatio


References


William C. Reynolds, Henry C. Perkins,

Termodinamika Teknik, Edisi kedua, Erlangga,

Jakarta, 1996.

Handbook, Syamsuri Hasan dkk, Sistem Refrigerasi

Dan Tata Udara , Departemen pendidikan

nasional.

Dr.ir.Harijono Djojodiharjo, Dasar - Dasar

Termodinamika Teknik, Gramedia, Jakarta,

Bernard D. Wood, Zulkifli Harahap,” Penerapan T

ermodinamika “, Jilid 1 , Erlangga, Jakarta,


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