Performance improvement of solar-assisted ground-source heat pumps with parallelly connected heat sources in heating-dominated areas

被引：47

作者：

Lee, Minwoo ^{[1
]}

Lee, Dongchan ^{[1
,2
]}

Park, Myeong Hyeon ^{[1
]}

Kang, Yong Tae ^{[1
]}

Kim, Yongchan ^{[1
]}

机构：

[1] Korea Univ, Sch Mech Engn, Seoul 02841, South Korea

[2] Univ Seoul, Dept Mech & Informat Engn, Seoulsiripdae Ro 163, Seoul 02504, South Korea

来源：

ENERGY | 2022年 / 240卷

关键词：

Solar-assisted ground-source heat pump; TRNSYS; Heating-dominated areas; Parallel configuration; Serial configuration; SYSTEMS; OPTIMIZATION; LOAD;

D O I：

10.1016/j.energy.2021.122807

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Solar-assisted ground-source heat pumps (SGSHPs) with a serial configuration have been introduced to reduce the performance degradation of ground-source heat pumps (GSHPs) for their long-term operation. However, SGSHPs with parallel configurations have rarely been investigated in heating-dominated areas. In this study, the heating performances of a GSHP and SGSHPs with serial and parallel configurations in a heating-dominated building are analyzed using TRNSYS and compared for 20 years by varying the borehole length and solar collector area. With a borehole length of 120 m and solar collector area of 10 m2, an SGSHP with a serial configuration showed a 12.6 and 11.5% higher ground temperature and solar collector efficiency, respectively, than the parallel configuration owing to the solar heat injection into the ground. However, an SGSHP with a parallel configuration decreased the energy consumption by 19.6 and 13.8% compared to those for the GSHP and SGSHP with a serial configuration, respectively, owing to an improved heating capacity. Furthermore, an SGSHP with a parallel configuration can considerably decrease initial costs by reducing the borehole length. (c) 2021 Elsevier Ltd. All rights reserved.

引用

页数：14

共 38 条

[31] Modeling, simulation and dynamic control of solar assisted ground source heat pump to provide heating load and DHW [J].