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Volume :37 Issue : 2 2010      Add To Cart                                                                    Download

Solar conscious house design in Kuwait

Auther : ADNAN Al-ANZI AND OMAR KHATTAB

Department of Architecture, College of Engineering and Petroleum, Kuwait University, Kuwait.

ABSTRACT

Housing plots with poor thermal orientation impose an architectural design challenge. In fact, poor environmental design decisions in these plots display serious malfunction expressed in glare, overheating and faulty integration of natural and electric lighting sources. In this paper, we discuss the reasons solar-conscious design of residential buildings is often ignored by architects in Kuwait. This paper also examines how solar design decisions can be used to reduce building energy use in residential buildings of poor thermal plot orientation in Kuwait leading to enhanced comfort, and improved productivity. The cooling load corresponding to a present housing context with poor plot orientation was compared with that of different solar design parameters such as orientation, glazing distribution and shading strategies. The proposed design took into consideration the proper solar concerns and ignored the poor street orientation. Also, the proposed design has a building form that differs considerably from the present conventional box-like house design. Moreover, shading strategies of the proposed design give functional and aesthetic expression to the building form. Using building energy simulation, it was found that a significant cooling load reduction and energy use reduction of around 43% can be achieved when the optimum solar orientation is considered using single glazing. It was also found that the use of double glazing in the proposed design resulted in a reduction of about 50% in both cooling load and energy use of the house. In addition, it was found that the equipment size of the proposed design is about 50% of the existing one. This equipment size reduction results in smaller equipment dimensions and lower CFM requirements. In particular, the CFM requirement in the proposed design is about 50% of the existing case. This huge equipment size-reduction has a large positive impact on the overall space, noise and HVAC operation as a whole.

Keywords: House design, HVAC, Kuwait, Orientation, Solar, Energy Consumption.

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