Syafutra, M. Agil
(2019)
Pengaruh Panjang Dan Diameter Pipa Kapiler Terhadap Unjuk Kerja Sistem Refrigerasi Dengan Fast Cooling.
Other thesis, Universitas Islam Riau.
Abstract
A refrigeration system is a combination of equipment components and piping connected to produce a cooling effect so as to make the temperature conditions of a room below its original temperature. In principle, the refrigeration system utilizes the basic principle of thermodynamics where heat moves from high to low temperatures in a medium. Capillary pipes are the main equipment used in cooling circuits. Capillary pipes are used to reduce pressure and regulate the amount of refrigerant flowing. The purpose of this research is to get the effect of length and diameter of capillary pipes on the performance of the refrigeration system and to get the length and diameter that has the best performance of the refrigeration system. This research was conducted using variations in length and diameter (ID) of capillary pipes, namely lengths of 2 meters, 2.5 meters and 3 meters, and diameters of 0.026 inches, 0.028 inches and 0.031 inches. With the fast cooling method that is rapid cooling from the initial conditions of the system the room temperature reaches the desired temperature. From the test results that changes in length and diameter of the capillary pipe have an influence on the performance of the refrigeration system, which is obtained the best performance of the refrigeration system at a length of 2 meters and a diameter of 0.026 inches (ID) with the lowest compressor work 18 (kJ / kg) , lowest condenser exhaust heat 174 (kJ / kg), refrigeration effect or heat absorbed by the highest evaporator 156 (kJ / kg), highest refrigerant mass flow rate 0,00660 (kg / s), highest COPactual with a value of 8,66, COPideal the highest is 9.43, and the highest cooling engine efficiency is 91%.
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