Abstract
| Original language | English |
|---|---|
| Journal | Energy and Buildings |
| Volume | 126 |
| Pages (from-to) | 2-13 |
| Number of pages | 12 |
| ISSN | 0378-7788 |
| DOIs | |
| Publication status | Published - 2016 |
Keywords
- Economic analysis
- Solar space heating for single family houses
- System parameter optimization
- Air source heat pumps
Cite this
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Simulation and optimization study on a solar space heating system combined with a low temperature ASHP for single family rural residential houses in Beijing. / Deng, Jie; Tian, Zhiyong; Fan, Jianhua; Yang, Ming; Furbo, Simon; Wang, Zhifeng.
In: Energy and Buildings, Vol. 126, 2016, p. 2-13.Research output: Contribution to journal › Journal article › Research › peer-review
TY - JOUR
T1 - Simulation and optimization study on a solar space heating system combined with a low temperature ASHP for single family rural residential houses in Beijing
AU - Deng, Jie
AU - Tian, Zhiyong
AU - Fan, Jianhua
AU - Yang, Ming
AU - Furbo, Simon
AU - Wang, Zhifeng
PY - 2016
Y1 - 2016
N2 - A pilot project of the solar water heating system combined with a low temperature air source heat pump (ASHP) unit was established in 2014 in a detached residential house in the rural region of Beijing, in order to investigate the system application prospect for single family houses via system optimization design and economic analysis. The established system was comprised of the glass heat-pipe based evacuated tube solar collectors with a gross area of 18.8 m2 and an ASHP with a stated heating power of 8 kW for the space heating of a single family rural house of 81.4 m2. The dynamic thermal performance of the pilot system was measured for continuous 20 days under typical cold climate conditions and the test data was used to validate the TRNSYS simulation model established. On the basis of model validation, system optimizations of both the existing pilot household and the typical rural house with good building insulation were undertaken to figure out the system economical efficiency in the rural regions of Beijing. The results show that the payback periods of the solar space heating system combined with the ASHP with the collector areas 15.04-22.56 m2 are 17.3-22.4 years for the established pilot household on the current electricity price level of 0.5 RMB/kWh, comparing with the reference condition of the fully ASHP space heating. It is further found that the equivalent solar heat price per kWh is too high under the current solar market cost price and collector technology. To put forward the integrated solar space heating for reducing carbon emission, it is suggested that the Beijing municipal government should offer some financial subsidy to compensate the equivalent solar heat price per kWh.
AB - A pilot project of the solar water heating system combined with a low temperature air source heat pump (ASHP) unit was established in 2014 in a detached residential house in the rural region of Beijing, in order to investigate the system application prospect for single family houses via system optimization design and economic analysis. The established system was comprised of the glass heat-pipe based evacuated tube solar collectors with a gross area of 18.8 m2 and an ASHP with a stated heating power of 8 kW for the space heating of a single family rural house of 81.4 m2. The dynamic thermal performance of the pilot system was measured for continuous 20 days under typical cold climate conditions and the test data was used to validate the TRNSYS simulation model established. On the basis of model validation, system optimizations of both the existing pilot household and the typical rural house with good building insulation were undertaken to figure out the system economical efficiency in the rural regions of Beijing. The results show that the payback periods of the solar space heating system combined with the ASHP with the collector areas 15.04-22.56 m2 are 17.3-22.4 years for the established pilot household on the current electricity price level of 0.5 RMB/kWh, comparing with the reference condition of the fully ASHP space heating. It is further found that the equivalent solar heat price per kWh is too high under the current solar market cost price and collector technology. To put forward the integrated solar space heating for reducing carbon emission, it is suggested that the Beijing municipal government should offer some financial subsidy to compensate the equivalent solar heat price per kWh.
KW - Economic analysis
KW - Solar space heating for single family houses
KW - System parameter optimization
KW - Air source heat pumps
U2 - 10.1016/j.enbuild.2016.05.019
DO - 10.1016/j.enbuild.2016.05.019
M3 - Journal article
VL - 126
SP - 2
EP - 13
JO - Energy and Buildings
JF - Energy and Buildings
SN - 0378-7788
ER -