TY - JOUR
T1 - Experimental investigation of a novel split type vacuum tube solar air thermal collection-stepped storage system (ST-VTSATC-SSS)
AU - Wang, Tengyue
AU - Diao, Yanhua
AU - Zhao, Yaohua
AU - Zhu, Tingting
N1 - Funding Information:
The authors gratefully acknowledge the financial support provided by the Beijing Municipal Natural Science Foundation (Grant No. 3192009) and the National Natural Science Foundation of China (Grant No. 51906177). The authors also would like to thank Zibo Boienergy Science and Technology Co. Ltd. for providing us with the flat micro heat pipe arrays.
Funding Information:
The authors gratefully acknowledge the financial support provided by the Beijing Municipal Natural Science Foundation (Grant No. 3192009 ) and the National Natural Science Foundation of China (Grant No. 51906177 ). The authors also would like to thank Zibo Boienergy Science and Technology Co., Ltd. for providing us with the flat micro heat pipe arrays.
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/6
Y1 - 2022/6
N2 - A novel split type vacuum tube (VT) solar air thermal collection-stepped storage system (ST-VTSATC-SSS) is proposed in this study to address the problem of carbon and pollution emissions from coal-fired heating in rural areas. A VT air collector is used to decrease heat loss. Paraffin and lauric acid are used to conduct thermal stepped storage. The performance of ST-VTSATC-SSS is experimentally investigated. On the coldest day in winter in 2021(Ta = −2.1 °C), the collector efficiency is 61.7%, the collection-storage efficiency is 40.7%, and the heat storage is 13.7 MJ. During the thermal collection process, the thermal collection-storage efficiency can be improved by enhancing the air volume flow rate, it decreases with the enhancement of solar radiation, and it can reach 55.3%. During the thermal discharge process, increasing the air volume flow rate can enlarge the discharge power. The average discharge power can reach 904 W. The result reveals that ST-VTSATC-SSS can rapidly release heat. Besides, a heating application for the master bedroom is analyzed. In the heating season, this mechanism can save coal of 373.0 kg and reduce CO2 by 977.3 kg, and the heating cost is 14.6 ¥/GJ. The ST-VTSATC-SSS contributes a new, clean, and low cost heating method in rural building heating.
AB - A novel split type vacuum tube (VT) solar air thermal collection-stepped storage system (ST-VTSATC-SSS) is proposed in this study to address the problem of carbon and pollution emissions from coal-fired heating in rural areas. A VT air collector is used to decrease heat loss. Paraffin and lauric acid are used to conduct thermal stepped storage. The performance of ST-VTSATC-SSS is experimentally investigated. On the coldest day in winter in 2021(Ta = −2.1 °C), the collector efficiency is 61.7%, the collection-storage efficiency is 40.7%, and the heat storage is 13.7 MJ. During the thermal collection process, the thermal collection-storage efficiency can be improved by enhancing the air volume flow rate, it decreases with the enhancement of solar radiation, and it can reach 55.3%. During the thermal discharge process, increasing the air volume flow rate can enlarge the discharge power. The average discharge power can reach 904 W. The result reveals that ST-VTSATC-SSS can rapidly release heat. Besides, a heating application for the master bedroom is analyzed. In the heating season, this mechanism can save coal of 373.0 kg and reduce CO2 by 977.3 kg, and the heating cost is 14.6 ¥/GJ. The ST-VTSATC-SSS contributes a new, clean, and low cost heating method in rural building heating.
KW - Heating application analysis
KW - Phase change material
KW - Solar energy
KW - Thermal storage system
KW - Vacuum tube air collector
KW - Micro-heat pipe arrays
KW - n/a OA procedure
UR - http://www.scopus.com/inward/record.url?scp=85129109625&partnerID=8YFLogxK
U2 - 10.1016/j.renene.2022.04.099
DO - 10.1016/j.renene.2022.04.099
M3 - Article
AN - SCOPUS:85129109625
SN - 0960-1481
VL - 192
SP - 67
EP - 86
JO - Renewable energy
JF - Renewable energy
ER -
