Energy, exergy, exergoeconomic and exergoenvironmental analysis on a novel parallel double-effect absorption power cycle driven by the geothermal resource

Zhang, Feng; Yan, Yunhui; Liao, Gaoliang; Jiaqiang, E

doi:10.1016/j.enconman.2022.115473

Cited by 22 publications

(1 citation statement)

References 35 publications

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“…However, the production cost may be controversial, as the comprehensive availability of local raw materials, the cost of local manufacturing, and the cost of power sources deviate between places [ 24 ]. Currently, economics evaluation is the primary and most common method for drying systems, while the techno-economic method is among the most common and popular economic analysis methods for studying thermodynamic systems, such as the traditional energy system [ 25 , 26 ] and emerging energy system [ 27 , 28 ]. The main advantages of the techno-economic method are that the cost flow and the energy flow of the system can be combined to identify the energy–exergy destruction rate of each component, indicate the improvement direction, and obtain the unit cost of the final product of the system [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Performance of Exergetic, Energetic and Techno-Economic Analyses on a Gas-Type Industrial Drying System of Black Tea

Zeng

Han

et al. 2022

Foods

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The purpose of this research work is to perform detailed exergetic, energetic and techno-economic analysis of the black tea drying process in the gas-type industrial dryer. Exergy–energy and techno-economic methodology was applied to investigate the heat loss, exergetic and energetic performance, exergy efficiency, improvement potential rate, sustainability index and techno-economic performance of a drying system. The results showed that the heat loss of exhaust air in the late drying process played a main contributing role in the heat loss and exergy loss of the whole drying system. Therefore, the exergy efficiency of the initial drying period and the redrying period varied from 38.08% to 65.09% and 24.76% to 26.97%, respectively. In addition, the improvement potential rate and sustainability index of the whole system varied from 6.93 kW to 12.94 kW and 1.33 to 2.86, respectively. The improvement potential obtained in the present work indicated that the drying operation is greatly in need of exergy performance improvement. Finally, the net present value and payback period obtained from techno-economic analysis were 179,442.03 USD and 5.3 years, the result is useful for investors or contractors to refer to and make investment decisions.

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