Studi eksperimental pengaruh temperature evaporasi terhadap unjuk kerja mesin pendingin ruangan dengan refrigerant R134a dan MC 134
Info Katalog
File Repositori
Subyek : Refrigerating machinery;Air conditioning;Cooling system
Penerbit : FTI - Usakti
Kota Terbit : Jakarta
Tahun Terbit : 2014
Pembimbing 1 : Bustami Mustafa
Kata Kunci : refrigerant, COP, R134a, hydrocarbon MC134
Status Posting : Published
Status : Lengkap
File Repositori
| No. | Nama File | Hal. | Link |
|---|---|---|---|
| 1. | 2014_TS_MTM_061206004_Halaman-Judul.pdf | ||
| 2. | 2014_TS_MTM_061206004_Lembar-Pengesahan.pdf | ||
| 3. | 2014_TS_MTM_061206004_Bab-1_Pendahuluan.pdf | ||
| 4. | 2014_TS_MTM_061206004_Bab-2_Tinjauan-Pustaka.pdf |
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| 5. | 2014_TS_MTM_061206004_Bab-3_Metodologi-Penelitian.pdf |
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| 6. | 2014_TS_MTM_061206004_Bab-4_Analisis-Haisl-dan-Pembahasan.pdf |
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| 7. | 2014_TS_MTM_061206004_Bab-5_Kesimpulan-dan-Saran.pdf |
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| 8. | 2014_TS_MTM_061206004_Daftar-Pustaka.pdf | ||
| 9. | 2014_TS_MTM_061206004_Lampiran.pdf |
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P Pemanasan global akibat pemakaian refrigeran yang tidak ramah lingkungan pada sistem pengkondisian udara, mendorong peneliti untuk melakukan penelitian untuk mencari alternatif pengganti refrigeran alternatif jenis HFC. Model penggantian langsung refrigeran pada mesin pendingin berjenis HFC R134a dan hidrokarbon mulai banyak dikembangkan. Retrofit refrigeran pada mesin pendingin udara (AC) belum diketahui dengan pasti tekanan pada kompresor yang optimal, yang berdampak pada tempeeatur evaporasi dan unjuk kinerja mesin pendingin ruangan. Penelitian ini bertujuan untuk mengetahui pengaruh temperatur evaporasi terhadap unjuk kerja mesin pendingin ruangan dengan menggunakan refrigeran R134a dan MC 134 pada tekanan pengisian refrigeran yang optimal. Parameter-parameter yang diamati dalam penelitian ini adalah pengaruh tekanan optimal pada kompessor, temperatur kondensor, temperatur evaporator, beban pendinginan terhadap kinerja mesin pendingin. Penelitian eksperimental dilakukan masih dalam skala laboratorium. Dari hasil penelitian diperoleh bahwa tekanan pengisian refrigeran optimal untuk refrigerant R134a terjadi pada tekanan 20 bar-g, dan untuk refrigerant MC134 pada tekanan 25 bar-g. Pada temperatur evaporasi antara 22,3°C-25,3°C, efek refrigerasi lebih besar 106,43%, kerja kompresor naik 70,22%, kalor yang diserap evaporator naik 5,99%, kalor yang dibuang kondesnor naik 2,78 %, daya kompresor turun 12, 4 %, daya listrik turun 14,69 %, COP naik 21,37 % setelah menggunakan refrigerant hidrok on MC 134.
G Global warming due to the use of refrigerants that are not environmentally friendly in air conditioning systems, encourages researchers to conduct research to find alternatives to alternative refrigerants of HFC type. The direct replacement model of refrigerant in HFC R134a and hydrocarbon type refrigerants has been widely developed. Retrofit refrigerant in air conditioning machines (AC) is not known with certainty the optimal pressure on the compressor, which has an impact on the evaporation temperature and performance of the air conditioning machine. This study aims to determine the effect of evaporation temperature on the performance of air conditioning machines using refrigerants R134a and MC 134 at the optimal refrigerant filling pressure. The parameters observed in this study are the effect of optimal pressure on the compressor, condenser temperature, evaporator temperature, cooling load on the performance of the refrigeration engine. Experimental research is still carried out on a laboratory scale. From the research results, it is found that the optimal refrigerant filling pressure for refrigerant R134a occurs at a pressure of 20 bar-g, and for refrigerant MC134 at a pressure of 25 bar-g. At the evaporation temperature between 22.3°C-25.3°C, the refrigeration effect is 106.43% greater, the compressor work increases by 70.22%, the heat absorbed by the evaporator increases by 5.99%, the heat discharged by the condenser increases by 2, 78%, compressor power decreased by 12.4%, electric power decreased by 14.69%, COP increased by 21.37% after using hydraulic refrigerant on MC 134.