Optical properties;
Fluids;
Solar thermal energy;
HEAT-TRANSFER CHARACTERISTICS;
NANOFLUIDS;
CONSTANTS;
D O I:
10.1016/j.solener.2008.12.009
中图分类号:
TE [石油、天然气工业];
TK [能源与动力工程];
学科分类号:
0807 ;
0820 ;
摘要:
A method for experimentally determining the extinction index of four liquids (water, ethylene glycol, propylene glycol, and Therminol VP-1) commonly used in solar thermal energy applications was developed. In addition to the extinction index, we report the refractive indices available within the literature for these four fluids. The final value reported is the solar-weighted absorption coefficient for the fluids demonstrating each fluid's baseline capacity for absorbing solar energy. Water is shown to be the best absorber of solar energy of the four fluids, but it is still a weak absorber, only absorbing 13% of the energy. These values represent the baseline potential for a fluid to be utilized in a direct absorption solar thermal collector. (C) 2008 Elsevier Ltd. All rights reserved.
机构:
Hohai Univ, Coll Energy & Elect Engn, Nanjing 211100, Jiangsu, Peoples R ChinaHohai Univ, Coll Energy & Elect Engn, Nanjing 211100, Jiangsu, Peoples R China
Duan, Huiling
Chen, Rongjie
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机构:
Tsinghua Univ, Dept Energy & Power Engn, Beijing 100084, Peoples R ChinaHohai Univ, Coll Energy & Elect Engn, Nanjing 211100, Jiangsu, Peoples R China
Chen, Rongjie
Zheng, Yuan
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机构:
Hohai Univ, Coll Energy & Elect Engn, Nanjing 211100, Jiangsu, Peoples R ChinaHohai Univ, Coll Energy & Elect Engn, Nanjing 211100, Jiangsu, Peoples R China
Zheng, Yuan
Xu, Chang
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机构:
Hohai Univ, Coll Energy & Elect Engn, Nanjing 211100, Jiangsu, Peoples R ChinaHohai Univ, Coll Energy & Elect Engn, Nanjing 211100, Jiangsu, Peoples R China
机构:
Solar Thermal Group, Department of Engineering, Australian National University, CanberraSolar Thermal Group, Department of Engineering, Australian National University, Canberra
Lovegrove, Keith
Dennis, Mike
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机构:
Solar Thermal Group, Department of Engineering, Australian National University, CanberraSolar Thermal Group, Department of Engineering, Australian National University, Canberra
机构:
Indian Inst Technol Ropar, Sch Mech Mat & Energy Engn, Rupnagar 140001, Punjab, IndiaIndian Inst Technol Ropar, Sch Mech Mat & Energy Engn, Rupnagar 140001, Punjab, India
Khullar, Vikrant
Tyagi, Himanshu
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机构:
Indian Inst Technol Ropar, Sch Mech Mat & Energy Engn, Rupnagar 140001, Punjab, IndiaIndian Inst Technol Ropar, Sch Mech Mat & Energy Engn, Rupnagar 140001, Punjab, India
Tyagi, Himanshu
Hordy, Nathan
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机构:
McGill Univ, Dept Chem Engn, Montreal, PQ, CanadaIndian Inst Technol Ropar, Sch Mech Mat & Energy Engn, Rupnagar 140001, Punjab, India
Hordy, Nathan
Otanicar, Todd P.
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机构:
Univ Tulsa, Dept Mech Engn, Tulsa, OK 74104 USAIndian Inst Technol Ropar, Sch Mech Mat & Energy Engn, Rupnagar 140001, Punjab, India
Otanicar, Todd P.
Hewakuruppu, Yasitha
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机构:
Univ New S Wales, Sch Mech & Mfg Engn, Gate 14,Barker St, Kensington, NSW 2052, AustraliaIndian Inst Technol Ropar, Sch Mech Mat & Energy Engn, Rupnagar 140001, Punjab, India