TY - JOUR
T1 - Experimental performance analysis of a multiple-source and multiple-use heat pump system
T2 - 13th REHVA World Congress, CLIMA 2019
AU - Liu, Mingzhe
AU - Ooka, Ryozo
AU - Hino, Toshiyuki
AU - Wen, Ke
AU - Choi, Wonjun
AU - Lee, Doyun
AU - Ikeda, Shintaro
AU - Palasz, Djafar Reza
N1 - Publisher Copyright:
© The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0
PY - 2019/8/13
Y1 - 2019/8/13
N2 - We herein report the development of a distributed heat pump system that can utilize a variety of renewable energy sources to meet different building heating and cooling demands (i.e., a multiple source and multiple use heat pump system, MMHP). In this system, a water circulating loop is used to connect ground heat exchangers, a unique sky-source heat pump, and various heat pumps for heating and cooling purposes to form a thermal network within a building. This distribution increases the flexibility of the system and allows an improved matching of supply and demand. To evaluate the system performance, an experimental house was constructed, and a winter field experiment was conducted. We found that the reported heat pump for floor heating achieved a stable operation with a high coefficient of performance of ~11.5, while the heat collecting operation performance of the sky-source heat pump varied significantly depending on the amount of solar radiation and the outside air temperature. Finally, since the sky-source heat pump contributes to an improvement in the whole system performance, it appears that there is still room for improved regarding the whole system performance by adjusting the operating and control strategy.
AB - We herein report the development of a distributed heat pump system that can utilize a variety of renewable energy sources to meet different building heating and cooling demands (i.e., a multiple source and multiple use heat pump system, MMHP). In this system, a water circulating loop is used to connect ground heat exchangers, a unique sky-source heat pump, and various heat pumps for heating and cooling purposes to form a thermal network within a building. This distribution increases the flexibility of the system and allows an improved matching of supply and demand. To evaluate the system performance, an experimental house was constructed, and a winter field experiment was conducted. We found that the reported heat pump for floor heating achieved a stable operation with a high coefficient of performance of ~11.5, while the heat collecting operation performance of the sky-source heat pump varied significantly depending on the amount of solar radiation and the outside air temperature. Finally, since the sky-source heat pump contributes to an improvement in the whole system performance, it appears that there is still room for improved regarding the whole system performance by adjusting the operating and control strategy.
UR - http://www.scopus.com/inward/record.url?scp=85071882151&partnerID=8YFLogxK
U2 - 10.1051/e3sconf/201911101076
DO - 10.1051/e3sconf/201911101076
M3 - Conference article
AN - SCOPUS:85071882151
SN - 2555-0403
VL - 111
JO - E3S Web of Conferences
JF - E3S Web of Conferences
M1 - 01076
Y2 - 26 May 2019 through 29 May 2019
ER -