A new design of passive air condition integrated with solar chimney for hot arid region of Egypt
- 104 Downloads
Housing in Egypt consumes high energy for cooling. Bioclimatic building design is one of the strategies of sustainable development. This study aims to investigate the thermal performance and indoor air quality of solar chimney with passive cooling wind tower (SCPCW) on occupant’s comfort. Thermal performance of a full-scale SCPCW was experimentally investigated. The passive cooling design is integrated on the ceiling of 30 m2 test house. Monitoring of indoor environment was carried out over a period of 2 months in the summer season (August, September and early October) with a 2-min interval in order to calculate thermal comfort sensation, Predicted Mean Vote (PMV) and Predicted Percentage of Dissatisfied. The results show that outlet air temperature from the wind tower is 27.3 °C. Also, the calculated PMV is within the recommended range (− 0.5 < PMV < + 0.5). This indicates that occupants remain satisfied with indoor thermal environment after using the passive cooling system and the temperature difference between outdoor and indoor is approximately 8 °C. The system achieves the acceptable air flow rate with average 450 ppm for CO2 concentration during daytime. The results of this research provide information of the system applicability in the climate of Assiut during daytime in order to develop and install on top of real residential buildings in New Assiut, Egypt.
KeywordsPassive air condition Solar chimney Occupant comfort Thermal sensation
This study is a part of a research project funded by STDF (The Ministry of State for Scientific Research, Egypt), Project No. 10255.
- Abdallah A (2016) Thermal performance and experimental study of solar chimneys integrated into a room in Assiut University, Egypt. In: 6th international conference on energy research and development, State of KuwaitGoogle Scholar
- Abdallah A, Yoshino H, Tomonobu G, Enteria N, Abdelsamei Eid M, Radwan M (2013a) Analysis of thermal comfort for indoor environment of the new Assiut housing in Egypt. World Acad Sci Eng Technol 77:101–107Google Scholar
- ANSI/ASHRAE Standard 55 (2004) Thermal environmental conditions for human occupancy. American Society of Heating, Refrigerating and Air-conditioning Engineers, Inc., Atlanta, GeorgiaGoogle Scholar
- Arundel AV, Sterling EM, Biggin JH, Sterling TD (1986) Indirect health effects of relative humidity indoor environments. Environ Health Perspect 65:351–361Google Scholar
- Clements-Croome D (2000) Creating the productive workplace. Taylor and Francis, LondonGoogle Scholar
- Fanger PO (1972) Thermal comfort: analysis and applications in environmental engineering. Danish Technical Press, CopenhagenGoogle Scholar
- ISO 7730 (2005) Moderate thermal environments. Determination of the PMV and PPD indices and specification of the conditions for thermal comfort, 2nd edn. International Organisation for Standardisation, GenevaGoogle Scholar
- Khani MR, Bahadori MN, Dehghani-Sanij AR, Nourbakhsh A (2017a) Performance evaluation of a modular design of wind tower with wetted surfaces. Energy 10(845):1–22Google Scholar
- Tyler H, Stefano S, Alberto P, Dustin M, Kyle S (2013) CBE thermal comfort tool, center for the built environment, University of California Berkeley. http://cbe.berkeley.edu/comforttool. Accessed Jan 2016