Materials selection for thermal comfort in passive solar buildings
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This paper presents the results of a combined analytical, computational, and experimental study of the key parameters for selecting affordable materials and designing for thermal comfort in passive solar buildings. The heat transfer across the walls of buildings is modeled using a simple heat diffusion model. In this way, the passive heat storage from the sun (passive solar) and the heat load from internal heat sources are stored in the walls of buildings that provide internal cooling during the day and internal heating at night. The simple analytical model of heat diffusion is used to identify the merit indices for the optimization of affordable passive solar performance. The time dependence of wall/internal temperature is then simulated using a simple finite difference model. The results from the analytical model and finite difference model are validated by conducting temperature measurements in two affordable housing complexes in Egypt. The implications of the results are then discussed for the design of thermal comfort in affordable housing.
KeywordsThermal Resistance Thermal Comfort Material Selection Life Cycle Cost Finite Difference Model
The authors are grateful for financial support provided by the NSF Division of Materials Research. Appreciation is extended to the Program Manager, Dr. Carmen Huber, for her encouragement and support. This paper is dedicated to the memory of the late Prof. Fawzy Hammad.
- 2.New Technologies for Desert Development: The Inshas Science City Project (1997) Forschungszentrum Jülich and Egyptian Atomic Energy Authority, GermanyGoogle Scholar
- 3.Bansal N, Hauser G, Minke G (1994) Passive building design. Elsevier Science B.V., NetherlandsGoogle Scholar
- 4.Givoni B (1976) Man, climate, and architecture, 2nd edn. Applied Science Publishers, Ltd, Essex, BritainGoogle Scholar
- 5.Ashby MF (1999) Material selection in mechanical design. Butterworth-Heinemann, Burlington MAGoogle Scholar
- 6.Holman JP (2002) Heat Transfer, 9th edn. McGraw Hill, New York NYGoogle Scholar