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首页> 外文期刊>Agricultural mechanization in Asia, Africa and Latin America >Optimum Tilt Angle and Orientation for a Flat Plate Solar Water Heater under Egyptian Conditions
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Optimum Tilt Angle and Orientation for a Flat Plate Solar Water Heater under Egyptian Conditions

机译：埃及条件下平板太阳能热水器的最佳倾斜角度和方向

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摘要

The solar water heater (SWH) is a most widely used for different Agricultural and Industrial applications in Egypt. But, there are many parameters that affect solar water heater thermal performance Tilt angle and orientation are considered as an important factors influencing, not only the thermal performance, but also the heat energy acquired by the solar system. Four identical solar water heaters were situated on the roof of Agricultural Engineering Department to investigate, under clear sky conditions, the effect of tilt angle and orientation on solar water heater thermal performance. They were mounted individually on movable frames which could be adjusted so that at any time the angle of incidence of the surface of the solar heater and the sun's rays could be set at zero. Water could be continually cycled through the SWH. After passing through the SWH, the heater water was stored in an insulatedrnstorage tank. The obtained result clarified that the solar heater which tracked the sun's rays once each half an hour from sunrise to sunset was more efficient than the other solar heaters. Overall thermal efficiencies for SWH1, SWH2, SWH3, and SWH4 were on average 72.83 %, 65.85 %, 61.60 %, and 55.98 %, respectively.
机译：太阳能热水器（SWH）在埃及的各种农业和工业应用中使用最广泛。但是，有许多参数会影响太阳能热水器的热性能。倾斜角度和方向被认为是重要的影响因素，不仅影响热性能，而且影响太阳能系统获得的热能。在农业工程部的屋顶上放置了四个相同的太阳能热水器，以研究在晴朗的天空条件下倾斜角度和方向对太阳能热水器热性能的影响。它们分别安装在可调节的可移动框架上，以便可以随时将太阳热水器表面和太阳光线的入射角设置为零。水可以通过SWH不断循环。通过SWH后，将加热器的水储存在一个绝缘的储水罐中。获得的结果表明，从日出到日落每半小时跟踪一次太阳光线的太阳能加热器比其他太阳能加热器效率更高。 SWH1，SWH2，SWH3和SWH4的总体热效率分别平均为72.83％，65.85％，61.60％和55.98％。

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