Thermodynamic and thermoeconomic analysis of innovative integration of Kalina and absorption refrigeration cycles for simultaneously cooling and power generation
Thermodynamic and thermoeconomic analysis of innovative integration of Kalina and absorption refrigeration cycles for simultaneously cooling and power generation
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DOI：
10.1016/j.enconman.2019.112241
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发表时间：
2020-01
影响因子：
10.4
通讯作者：
H. A. Dhahad;Hasanen M. Hussen;P. T. Nguyen;H. Ghaebi;M. Ashraf
中科院分区：
文献类型：
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作者：
H. A. Dhahad;Hasanen M. Hussen;P. T. Nguyen;H. Ghaebi;M. Ashraf
能源消耗和温室气体的排放促使研究人员使用可再生能源来发展可持续社会。低温热源，如地热源，可以是一个理想的选择，以产生所需的电力，冷却，加热和其他副产品。在目前的文献中，提出了一种新型的联合冷却和发电系统，这是一个内部集成的卡林纳循环和吸收式制冷循环。该系统使用低温热源运行。采用工程方程求解软件进行热力学和热经济学分析。此外，在建立数学模型的基础上，进行了参数研究，以评估关键参数对产品单位总成本的影响。根据计算结果，该制冷发电系统可提供158.3kW的净输出功率和1084 kW的制冷量。结果表明，该系统是最适合的冷却供应，而不是发电的目的。联合循环的能量效率、火用效率和净功率分别为41.33%、27.47%和158.3kW。产品冷却、动力和整个系统的总单位成本分别为148.5$/G J、97.16$/G J和19.44$/G J。参数分析得出了一些有价值的结果，如通过增加发电机热夹点温差来降低净功率、冷量和整个系统的单位总成本，随着低温热源入口温度的增加，产品的整个系统单位总成本增加，以及净功率、冷量和整个系统的单位总成本增加。以及整个系统的蒸发器温度升高。
The energy consumption and the emission of greenhouse gases have been motivated researchers toward using renewable energy sources for the development of a sustainable society. Low-temperature heat sources like geothermal sources can be a desirable option to produce the demanded power, cooling, heating, and other byproducts. In the present literature, a novel combined cooling and power generation system is presented which is an internal integration of the Kalina Cycle and the absorption refrigeration cycle. The system operates using the low-temperature heat source. The thermodynamic and thermoeconomics analysis is carried out using Engineering Equation Solver software. Besides, considering the mathematical modeling, the parametric investigation is implemented to evaluate the effect of the key parameters on the sum unit cost of the products. Based on the obtained results, the cooling and power generation system can provide the net output power of 158.3 k W and the cooling capacity of 1084 k W. The results indicate that the system is most appropriate for cooling provision rather than for power generation aims. The energy and the exergy efficiencies and the net power of the combined cycle obtained 41.33%, 27.47%, and 158.3 k W respectively. The sum unit cost of the product cooling, power, and total system are respectively evaluated 148.5$/G J, 97.16$/G J, and 19.44$/G J. The minimum and maximum values for the rate of exergy destruction cost belong to the pump and absorber, respectively. The parametric analysis delivered some valuable results such as a drop in the sum unit cost of the net power, cooling output, and overall system by increasing the generator hot pinch point temperature difference, an increase in the overall system sum unit cost of the products with increment in the low-temperature heat source inlet temperature, and rising in the sum unit cost of the net power, cooling output, and the overall system with an increase in the evaporator temperature.