Saving Energy by Reducing Cooling Load of Rural Houses with using Passive Solar System and Well Water

International Conference on Materials Engineering and Science

Zaidan, M.H.^1 ; Abed, F.M.^1

Mechanical Engineering Department, College of Engineering, Tikrit University, Tikrit, Sallahalddin

34001, Iraq^1

关键词: Active solar system;    Direct solar radiation;    Environmental contamination;    Governing equations;    Parameters design;    Passive solar systems;    Passive systems;    Temperature differences;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/454/1/012125/pdf
DOI  :  10.1088/1757-899X/454/1/012125

来源: IOP

【 摘 要 】

Saving energy helps in reducing the effect of the environmental contamination. This could be obtained by decreasing the cooling load of rural houses and small buildings by using passive and active solar systems. The big temperature differences between the well water and the ambient temperatures is also utilizing for the purpose of air conditioning. This is done by adding heat exchanger (Fan-Coil) inside the house, which is operated by external photoelectric cells to reduce the cooling load of the house. The passive systems have also been studied like the directions and areas of the windows. Its significance comes from the importance of passive system applications to reduce the cooling load of houses in summer. Energy balance is done to get the governing equation that is necessary to calculate the variation in cooling load along the day for different parameters design, then to find out the optimum values of these parameters in order to reduce the houses' cooling load through the day hours. The results have shown that the use of well water to cool the house would help to reduce the cooling load by 30%. Also the best orientation of windows in the south direction with suitable length of overhang, which prevent the direct solar radiation through the windows is investigated .This results in a reduction by 6% in cooling load during the summer season. The use of the passive system and well water in house cooling decreases the cooling load of the house by 36%.