Performance evaluation of a thermoelectric ventilation system driven by the concentrated photovoltaic thermoelectric generators for green building operations

被引：55
作者：
Cai, Yang [1 ,2 ,3 ]
Wang, Wei-Wei [1 ,2 ,3 ]
Liu, Cheng-Wei [1 ,2 ,3 ]
Ding, Wen-Tao [1 ,2 ,3 ]
Liu, Di [4 ]
Zhao, Fu-Yun [1 ,2 ,3 ]
机构：
[1] Wuhan Univ, Key Lab Hydraul Machinery Transients, Minist Educ, Wuhan, Hubei, Peoples R China
[2] Wuhan Univ, Hubei Key Lab Waterjet Theory & New Technol, Wuhan, Hubei, Peoples R China
[3] Wuhan Univ, Sch Power & Mech Engn, Wuhan 430072, Hubei, Peoples R China
[4] China Univ Petr, Coll Pipeline & Civil Engn, Qingdao, Shandong, Peoples R China
来源：
RENEWABLE ENERGY | 2020年 / 147卷 / 147期
基金：
中国国家自然科学基金;
关键词：
Thermoelectric ventilation system; Concentrated photovoltaic-thermoelectric generator; Energy and exergy analysis; Power matching; AIR DUCT SYSTEM; HEAT-PUMP; ENERGY; DESIGN; EXERGY; OPTIMIZATION; COOLER; MODEL; DEVICES;
D O I：
10.1016/j.renene.2019.09.090
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
This paper proposed one novel Thermo-Electric Ventilation (TEV) system driven by the concentrated photovoltaic-thermoelectric generator (CPV-TEG), which could use the electric power converted directly from solar energy by CPV-TEG. The effects of incident solar irradiance, number of thermoelectric generators, and ambient air temperatures on the power output of CPV-TEG have been analytically investigated through energy balance and first law of thermodynamics. Furthermore, input current and number of thermoelectric coolers were sensitively varied to optimize the performance of TEV system respectively in heating and cooling modes. Finally, an integrated theoretical and numerical approach was proposed to match the power output of CPV-TEG with the power input of TEV. Modeling results indicate that the output power from CPV-TEG could satisfy the energy demand of TEV system when the input currents of thermoelectric coolers were no more than 2.5 A and 2.8 A respectively for cooling and heating modes. Minimum energy and exergy efficiencies of the system in winter heating mode were confirmed to be 1.67 and 0.24 respectively, which were far higher than that in summer cooling mode. This research may be helpful for enhancing performance and reducing exergy destruction of thermoelectric ventilation system, simultaneously. (c) 2019 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1565 / 1583
页数：19
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