Energy, exergoeconomic and environmental optimization of a cascade refrigeration system using different low GWP refrigerants

Deymi–Dashtebayaz, Mahdi; Sulin, A. B.; Ryabova, T. V.; Sankina, Iuliia; Farahnak, Mehdi; Nazeri, Reza

doi:10.1016/j.jece.2021.106473

Cited by 43 publications

(13 citation statements)

References 32 publications

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“…To validate the constructed models of the cascade refrigeration system, the basic performance parameters of the system, including the exergy destruction rate of all components, COP, the exergy efficiency, and annual total cost, are compared with the results by Deymi (Deymi-Dashtebayaz et al, 2021). The refrigerating capacity, ambient temperature, condensation temperature of the hightemperature stage, evaporation temperature of low-temperature phase and cascade temperature difference are 10 kW, 25 °C, 40 °C, −50 °C, and 5 °C, respectively.…”

Section: Model Verificationmentioning

confidence: 99%

Evaluation and optimization of a novel cascade refrigeration system driven by waste heat

et al. 2023

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Direct discharge of waste heat from internal combustion engines (ICEs) is unfavorable for the efficient and clean fuel utilization. Here, a novel combined absorption-compression cascade refrigeration cycle is proposed to efficiently capture low-grade waste heat and supply cooling capacity for food freezing in vessels or refrigerated trucks. The intention of this work lies in: i) Comprehensively evaluating the performances of the proposed system; ii) Gaining the optimal operating conditions of the system. Aimed that, analysis models of energy, exergy, economy, and environment are set up to evaluate the sweeping performances. Further, multi-objective optimization is introduced to obtain the optimal operating parameters including evaporation and condensation temperature of the low-temperature stage, generation temperature and condensation temperature of the high-temperature stage, and cascade temperature differences. By applying multi-objective optimization, the coefficient of performance and exergy efficiency of the system are elevated from 1.283 to 1.547, and 0.222 to 0.246, respectively, the discharge amount of carbon dioxide are reduced from 71.40 to 59.57 tons year−1, and annual total cost are decreased from 16,028 to 15,055 $ year−1 compared to initial operating conditions.

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Section: Model Verificationmentioning

confidence: 99%

Evaluation and optimization of a novel cascade refrigeration system driven by waste heat

et al. 2023

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“…Moreover, Aktemur and Ozturk 17 compared the system performance of three CRSs with R41 as LTC refrigerant based on energy and exergy analysis. Deymi‐Dashtebayaz et al 18 developed an energy‐exergoeconomic‐environmental model to study the operation efficiency of CRSs with R41 and R744 being as low‐temperature refrigerants. Aktemur et al 19 performed the comparative energy and exergy analysis on a CRS by adopting refrigerant pairs R41‐R423A, R41‐R1243zf, R41‐R601A, R41‐R1233d(E), R41‐R601, and R41‐RE170.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the pull‐down performance of a −80°C cascade refrigeration freezer

Tan

Bai

Xu³

et al. 2023

Asia-Pacific J Chem Eng

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To cope with global climate change, chlorofluorocarbons and hydrofluorocarbons refrigerants have been or will be abandoned by different countries worldwide. Natural refrigerants seem to be promising substitutes in the near future. In this study, eco‐friendly refrigerants R290 and R170 are adopted as high‐temperature and low‐temperature fluid in a cascade refrigeration freezer to generate −80°C. The experimental measurements are carried out to investigate the pull‐down performance of the freezer. The inlet and outlet pressure of two compressors are monitored and tested. Temperatures of different state monitors in high‐temperature cycle and low‐temperature cycle are measured to analysis the operation performance of the cascade refrigeration system. Different temperature test points are set to research the temperature drop and temperature distribution in the freezer. Some new findings are obtained. Due to the lack of ultralow temperature experimental data on cascade refrigeration system, this study can enrich and deepen the understanding on operation mechanism of ultralow temperature cascade refrigeration freezer.

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“…Chae and Choi [11] showed that the COP is lower when the system is undercharged because the heat transfer capacity decreases. Deymi-Dashtebayaz et al, [12] proposed the Pareto front curve to obtain the optimal operational conditions and refrigerants considering maximum COP, maximum exergy efficiency and minimum total cost rate. R-41/R-161 and R-41/R-1234ze(E) present the highest COP and exergy efficiency and lowest total cost rate.…”

Section: Introductionmentioning

confidence: 99%

Advanced two-stage cascade configurations for energy-efficient –80 °C refrigeration

Udroiu

Mota-Babiloni

Navarro-Esbrí

2022

Energy Conversion and Management

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Energy, exergoeconomic and environmental optimization of a cascade refrigeration system using different low GWP refrigerants

Cited by 43 publications

References 32 publications

Evaluation and optimization of a novel cascade refrigeration system driven by waste heat

Evaluation and optimization of a novel cascade refrigeration system driven by waste heat

Experimental study on the pull‐down performance of a −80°C cascade refrigeration freezer

Advanced two-stage cascade configurations for energy-efficient –80 °C refrigeration

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