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Xiao H.,Nantong University | Xiao H.,Jiangsu Photo Thermal and Control Engineering Research Center | Liu Z.,Shanghai JiaoTong University | Chen Z.,Nantong University | And 2 more authors.
Dongli Gongcheng Xuebao/Journal of Chinese Society of Power Engineering | Year: 2015

The structure and components of a newly-designed small-sized modularized seawater desalination system powered by solar energy with multi-effect heat recovery units were introduced in detail. Through tests under different weather conditions and in different pressure regulating ways, the freshwater yield of the solar seawater desalination system was analyzed, thus obtaining the ways to improve the performance ratio and total efficiency of the system. Results show that via the free pressure setting method to regulate the steam pressure, and by controlling the maximum collecting temperature at 130℃, the freshwater yield of unit collecting area in the modularized system with about 2.31 m2 daylight gathering area can reach 1.982 kg/(h · m2), and the all-day freshwater yield is up to 7.869 kg/m2, with a highest performance ratio up to 2.5, the total efficiency up to 1.35, and the system collecting efficiency up to 0.4, indicating outstanding performance of the solar seawater desalination system. © 2015, Editorial Department of Chinese Society of Power Engineering. All right reserved.


Xiao H.,Sunshore Solar Energy Industry Co. | Xiao H.,Jiangsu PhotoThermal and Control Engineering Research Center | Bai J.,Hohai University | Wang D.,Sunshore Solar Energy Industry Co. | And 3 more authors.
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | Year: 2012

Becanse most of solar air collectors can only provide low temperature air at present, a new type of solar air collector with medium-high temperature air was put forward. It is composed of three parts: a compound parabolic concentrating (CPC) collector is used to focus sunlight; an evacuated solar collector tube is used to collect heat; a U-type tube, which adopts heat from the envelope, is used to increase air temperature. Between the tube and the envelope, the composition of graphite and glycerin is adopted as the heat transfer medium. With multiple serial of the apparatuses, the temperature of the heated air can reach over 200°C. The heat transfer performances of key parts of solar air collector were analyzed. Furthermore, the elementary experiment performance was described.


Xiao H.,Nantong University | Xiao H.,Jiangsu PhotoThermal and Control Engineering Research Center | Xia N.,Sunshore Solar Energy Industry Co. | Xia N.,Jiangsu PhotoThermal and Control Engineering Research Center | And 2 more authors.
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | Year: 2015

This article introduces a simple CPC with non-involute tip-shaped protrusion and carries out CPC void loss calculation, optical analysis and experiment comparison. It shows that the optical efficiency of the simple CPC with non-involute tip-shaped protrusion drops only 10 percent compared with the conventional CPC. In conclusion, the simple CPC is highly cost-effective, suitable for mass production. ©, 2015, Science Press. All right reserved.


Xiao H.,Sunshore Solar Energy Industry Co. | Zhao F.,Sunshore Solar Energy Industry Co. | Ji B.,Sunshore Solar Energy Industry Co.
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | Year: 2013

At present flat plate and evacuated tubular solar collectors can only provide low-temperature heated water. The paper puts forward a new high efficiency open heat-pipe evacuated tubular solar collector, whose infrastructure and components were described in detail. The thermal performance of the solar collector was evaluated using experiment method. The optimal liquid filling ration in the heater was deserved. The thermal performance using deionized water and CuO nanofluids as filling liquid were analyzed separately. The experimental results provide theoretical foundation for the engineering applications using the solar collector.

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