Thermal Storage Capacity and Night Ventilation Performance of a Solar Chimney Combined with Different PCMs
Joint Authors
Lu, Jun
Gao, Xiaolong
Li, Qianru
Li, Yongcai
Source
International Journal of Photoenergy
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-07-05
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Thermal storage capacity and airflow rate of a solar chimney combined with different PCMs are numerically studied during nighttime.
PCMs with phase change temperatures of 38°C, 44°C, 50°C, and 63°C are selected in this numerical study.
Results show that the maximum average ventilation rate of 610 kg/m2 and maximum thermal storage of 4750 kJ/m2 are achieved at the phase change temperature of 38°C.
However, for phase change temperature of 63°C, night ventilation does not occur under the identical conditions.
The findings reveal that a lower phase change temperature can increase the chargeability (and therefore the dischargeability) of a solar chimney, since a higher phase change temperature demands higher solar radiation intensity and longer charging time for a solar chimney.
For PCM with a phase change temperature of 44°C, most of the heat stored in PCM is lost to ambient through glass cover by radiation and only a small portion is used for heating the air within air channel.
American Psychological Association (APA)
Lu, Jun& Gao, Xiaolong& Li, Qianru& Li, Yongcai. 2017. Thermal Storage Capacity and Night Ventilation Performance of a Solar Chimney Combined with Different PCMs. International Journal of Photoenergy،Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1168480
Modern Language Association (MLA)
Lu, Jun…[et al.]. Thermal Storage Capacity and Night Ventilation Performance of a Solar Chimney Combined with Different PCMs. International Journal of Photoenergy No. 2017 (2017), pp.1-10.
https://search.emarefa.net/detail/BIM-1168480
American Medical Association (AMA)
Lu, Jun& Gao, Xiaolong& Li, Qianru& Li, Yongcai. Thermal Storage Capacity and Night Ventilation Performance of a Solar Chimney Combined with Different PCMs. International Journal of Photoenergy. 2017. Vol. 2017, no. 2017, pp.1-10.
https://search.emarefa.net/detail/BIM-1168480
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1168480