EXPERIMENTAL REVIEW OF 5 TON REFRIGERATION PACKAGED UNIT AIR- CONDITIONING USING R-22, R-290 AND R-407C

• Main Author: MUHAMMAD MUFTI (NIM : 13107111); Pembimbing : Dr. Ir. Ari Darmawan Pasek, SANDI
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/17147
• Institution: Institut Teknologi Bandung

The use of halocarbon refrigerant basically adversely on earth’s atmosphere. This adverse impacts include the depletion of ozone layer and cause global warming potential. Because this impacts, the uses of HCFCs as a <br /> <br /> <br /> refrigerant will be stop gradually, including in Indonesia. <br /> <br /> <br /> HCFC-22 or R-22 is a refrigerant which is commonly used in airconditioning unit and the packaged unit air-conditioning is the type of airconditioning which is also commonly used in high bulidings or other bulidings. By the discontinuation of the use of R-22, it must be find such an alternative refrigerant. The hydrocarbon and HFC refrigerant is the most approriate candidate as an alternative refrigerant to replace R-22 represented by R-290 and R-407C. This type of refrigerant selected based on similarity with R-22. From the test result obtained for the 5TR packaged unit airconditioning, the refrigerant charge necessary to achieve optimum performance of R-290 is only 30% of R-22’s refrigerant charge with the result of capacity obtained18,56 kW and COP 8,2. While the R-407C achieve the greatest performance with a capacity of 19,7 kW and COP 8,6 with similar refrigerant charge as R-22. The consideration of choosing this alternative refrigerant is <br /> <br /> <br /> that R-290 has properies that are flammable so the risk are become larger, and the R-407C has a cost price that is uch more expensive than other refrigerant.