REDESIGN OF AIR CONDITIONING TEST - BED FOR ENERGY CONVERSION LABORATORY

Abstract

Pendinginan merupakan proses pengambilan panas yang dilakukan sehingga terjadi penurunan suhu lingkungan dan menjaga suhu tersebut selama waktu yang diinginkan. Terdapat beberapa sistem pendinginan yang digunakan namun sistem pendingin kompresi uap merupakan pendinginan yang umum digunakan karena mudah diterapkan dan mudah dianalisa keefektifannya. Sistem ini terdiri dari kompresor, katup ekspansi, kondensor dan evaporator. Fluida kerja yang digunakan dalam proses pendinginan disebut sebagai refrigeran. Pada laboratorium konversi energi terdapat air conditioner test-bed hasil rekayasa terdahulu yang kinerjanya masih belum sesuai dengan harapan dikarenakan beberapa hal, menyangkut instalasi equipment dan instrument. Desain ulang dilakukan guna mengevaluasi letak sumber permasalahan, merancang dan menginstalasi beberapa peralatan dan instrument agar mendapatkan kinerja sistem atau performa yang lebih baik. Pendekatan teoritis dan praktis dilakukan untuk mengkaji dan menyelesaikan permasalahan tersebut, dan ternyata mampu menghasilkan kinerja test-bed yang lebih baik dibanding sebelumnya. Cooling is a heat transfer process carried out so that there is a decrease of environmental temperature and maintain that temperature during the desired time. There are several cooling systems that are used,but the vapor compression refrigeration system is cooling a commonly used because it is easy to implement and easy to analyze its effectiveness. This system consists of a compressor, expansion valve, condenser and evaporator. Working fluid used in the cooling process referred to as a refrigerant. In the energy conversion laboratory there is an air conditioner test-bed, results of previous engineering process whose performance is still not in line with expectations due to several things, involves the installation of equipment and instruments. Redesign conducted for evaluating the location of the source of problems, designing and installing some equipment and instruments to obtain system performance or better performance. Theoretical and practical approach is to examine and resolve these problems, and was able to produce test-bed performance better than before.