INVESTIGATION OF LOAD VARIATIONS WITH SEASONAL CONDITIONS AFFECTED TO COEFFICIENT OF PERFORMANCE OF AIR TO WATER HEAT PUMP

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Kaewpradap, A.;Ohnjaikla, N.;Sanitjai, S.

ปีที่เผยแพร่ (ค.ศ.): 2016

วารสาร: Journal of Research and Applications in Mechanical Engineering (2229-2152)

Volume number: 4

Issue number: 2

หน้าแรก: 175

หน้าสุดท้าย: 182

นอก: 2229-2152

URL: http://www.jrame.com/Home/index.php/en/table-of-contents/volume-4-issue-2-2016.html

บทคัดย่อ

Following EN255-3 standard, coefficient of performance for tapping process (COPt) was defined. As the variation of temperature among different seasons, the load variations as outlet hot water temperature (Two) and the variation of temperature as ambient temperature (Ta) and air humidity from air to water heat pump (11 kW) were studied to obtain COPt . The results showed increase of ambient temperature enhanced COPt because lower electrical energy input (Wet) was induced by higher ambient temperature. Moreover, higher COPt was affected by higher air humidity. The results were shown that decrease of outlet water temperature affected to higher electrical energy input and enhanced higher COPt . This study could be concluded that ambient temperature was higher with lower outlet water temperature affected to lower electrical energy input for tapping process due to lower load of compressor. The overshot electrical energy input for tapping process was observed at specified ambient temperature for each outlet water temperature and it was resulted to diminish COPt significantly.

คำสำคัญ

Air to water heat pump, European standard EN255-3, Coefficient of Performance, Load variations, Seasonal conditions.