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A novel hybrid system consisting of a dye-sensitized solar cell and an absorption refrigerator for power and cooling cogeneration
International Journal of Refrigeration ( IF 3.9 ) Pub Date : 2020-02-06 , DOI: 10.1016/j.ijrefrig.2020.02.009
Qin Zhao , Houcheng Zhang , Ziyang Hu , Fu Wang

To improve the energy conversion efficiency of a dye-sensitized solar cell (DSSC), a novel hybrid system representatively consisting of a DSSC and an absorption refrigerator (APR) is put forward, in which the APR is used to thermally harness the part of high wavelength sunlight that not converted by the DSSC. The amount of heat from the DSSC is calculated, and mathematical formula for energy conversion efficiencies and output powers of the DSSC, APR and hybrid system are derived. Numerical calculations show that the maximum output power density and maximum energy conversion efficiency of hybrid system are enhanced by 9.93% and 9.92% in comparison with that of the single DSSC, respectively. Integration of APR to DSSC is a feasible route to effectively improve the energy conversion efficiency. Comprehensive sensitivity analyses are conducted to explore how the whole hybrid system performance depends on various working conditions and designing parameters, including porous nano-TiO2 film thickness, photoelectron absorption coefficient, internal irreversibility factor, heat transfer coefficient and various temperatures. The research results can provide some new understandings for further enhancing the DSSC performance.



中文翻译:

由染料敏化太阳能电池和吸收式制冷机组成的新型混合动力系统,用于热电联产和制冷

为了提高染料敏化太阳能电池(DSSC)的能量转换效率,提出了一种新型的由DSSC和吸收式制冷机(APR)组成的混合系统,其中APR用于热利用高能电池的一部分。 DSSC未转换的波长太阳光。计算出DSSC的热量,并推导了DSSC,APR和混合动力系统的能量转换效率和输出功率的数学公式。数值计算表明,混合动力系统的最大输出功率密度和最大能量转换效率分别比单个DSSC提高了9.93%和9.92%。将APR集成到DSSC是有效提高能量转换效率的可行途径。2膜厚,光电子吸收系数,内部不可逆系数,热传递系数和各种温度。研究结果可以为进一步提高DSSC性能提供一些新的认识。

更新日期:2020-03-04
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