The Analysis of the Use of Intercooler on a Multi Stage Cold Storage Simulator Toward the Compressor Work

Multistage type cold storage is a refrigeration machine required in an industry because it functions to store food products for long time. Bali, as world tourist destination, will rely heavily on this cooling system preparing services tourists, especially the and beverage sector. designed reach evaporator temperature below -30oC thus used compressor performance must be able produce maximum effect. Two compressors placed succession or connected series complete system, which expected achieve higher operating pressures. The occurring due pressure increase second anticipated by installing intercooler aiming at preventing excessive heat over during compression. extent important role of stabilizer cycle shown its working with Mollier diagram (P-h diagram). data obtained operation multistage then transferred P-h R134A determine enthalpy determines amount COP, achieved energy requirements. calculation results using COP 1.83, 67oC, consumption seen from total entalphy difference compression work 81 kJ/kg. Without intercooler, system’s 1.72 94.9oC 86 kJ/kg consumption. operational becomes more eficient released environment much less, therefore can categorized eco-friendly technology.