Pengaruh Water Storage Volume Terhadap Unjuk Kerja Solar Assisted Heat Pump Water Heater (Sahpwh) Menggunakan HFC-134a

Wibawa Endra Juwana, Tri Istanto

Abstract


Abstract : Solar assisted heat pump water heater (SAHPWH) was one of the applications from heat pump system with the solar collector addition on evaporator to absorb the heat from sunshine. The solar collector aimed to increase the refrigerant temperature in the evaporator. This research was conducted to test the performance of SAHPWH by using refrigerant HFC-134a with the variation of water storage volume at 50 l, 75 l, 100 l, 125 l, and 150 l. The experimental result showed that water storage volume enhancement was caused COP increased whereas water temperatur yielded decreased. When water temperature in condenser tank increased with time, refrigerant mass flow rate, heat capacity also increase, and at the same time COP value decreased. Average values of COP ranged from about 3.75 – 4.74 and water temperature in condenser tank varied between 29.0oC – 61.3oC.

Keywords : Heat Pump Collector HFC-134a Water Storage Volume COP


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Mekanika: Majalah Ilmiah Mekanika

ISSN: 1412-7962 || eISSN: 2579-3144

Address :  Jl. Ir Sutami no 36 A, Building I, Faculty of Engineering, Universitas Sebelas Maret, Surakarta.

Phone    :  +62271632163 

email     : mesin@ft.uns.ac.id

 

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