Experimental test on the performance of a −80 °C cascade refrigeration unit using refrigerants R290-R170 for COVID-19 vaccines storage

Liu, Zhan; Bai, Minkai; Tan, Haihui; Ling, Yunzhi; Cao, Zhang

doi:10.1016/j.jobe.2022.105537

Cited by 15 publications

(5 citation statements)

References 32 publications

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“…Figure 3 displays the experimental setup 29,30 of the freezer and related measurement devices. The experimental apparatus mainly consists of a test freezer, a data collection, and a power source.…”

Section: Methodsmentioning

confidence: 99%

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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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Section: Methodsmentioning

confidence: 99%

“…Figure 1 displays the schematic diagram 29,30 of the CRS utilized in À80 C freezer. It is clear to see the CRS is composed of a LTC and a HTC.…”

Section: Experimental System and Apparatus 21 | Schematic Diagram Of ...mentioning

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

Self Cite

View full text Add to dashboard Cite

show abstract

“…It has been applied in supermarkets by several researchers, including Eggen and Aflekt [ 29 ], Pearson and Cable [ 30 ], Van Riessen [ 31 ], Sawalha et al [ 32 ], Da Silva et al [ 33 ]. It has been practically employed and analyzed in vaccine storage task as well by Liu et al [ 34 ]. Some notable contributions to the experimental analysis include the works of S. Cabello et al [ 35 ], Bingming et al [ 36 ], Dopazo and Ferna'ndez-Seara [ 37 ], Sanz-Kock et al [ 38 ], Wang et al [ 39 ] and Jeon [ 40 ]However, for sectors that require ultra-low temperatures, maintaining the corresponding high-pressure ratio is not feasible with a double cascade system.…”

Section: Introductionmentioning

confidence: 99%

“…Following the devastating COVID-19 pandemic, TCRS' demand has skyrocketed due to its use in ultra-low temperature applications, particularly in vaccine supply chains and the pharmaceutical industry. Thus, a comprehensive examination of this system is critically important [ 34 ]. The comprehensive literature review indicates that in addition to the thermodynamic analysis, economic and environmental impact assessment of a refrigeration system is indispensable nowadays, considering the rampant energy crisis and environmental degradation.…”

Section: Introductionmentioning

confidence: 99%

Multi-objective optimization and 4E (energy, exergy, economy, environmental impact) analysis of a triple cascade refrigeration system

Kayes,

Ratul,

Abid

et al. 2024

Heliyon

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“…Today, the demand for cryogenic refrigeration systems operating below −100 • C is increasing across various industries such as food and pharmaceutical storage [1][2][3], boil-off gas re-condensation [4,5], semiconductor cooling, and medical applications [6][7][8]. With this increasing demand in the ultra-low-temperature market, research on mixed refrigerant Joule-Thomson (MR J-T) refrigeration systems is also on the rise.…”

Section: Introductionmentioning

confidence: 99%

Energy and Exergy Analysis of Cascade Mixed Refrigerant Joule–Thomson System with the Application of a Precooler

Yoon,

Son

et al. 2023

Energies

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This study proposes the application of a precooler to the cascade mixed refrigerant Joule–Thomson (CMR J–T) cycle, herein referred to as the precooled CMR J–T (PCMR J–T) system. The purpose of the precooler is to utilize the temperature gradient characteristics within the two-phase region exhibited by the non-azeotropic mixed refrigerant. The precooler reduces the temperature of the high-temperature gas exiting the compressor by using cooling water from the condenser, thereby decreasing the capacity requirements of the high-temperature cycle (HTC). The working fluid comprises a nonflammable mixed refrigerant (R218, R23, R14, and Ar), and simulations were conducted by varying the HTC evaporation temperature and cooling water temperature for energy and exergy analysis. Under the analysis conditions, the capacity of each component in the HTC can be reduced by over 45%, leading to a maximum increase of 21.6% in the system’s coefficient of performance. Furthermore, the exergy destruction in the PCMR J–T system decreases along with the reduction in component capacity, with the most significant reduction occurring at the HTC expansion valve. The exergy efficiency of the system increases by up to 47.4%.

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Experimental test on the performance of a −80 °C cascade refrigeration unit using refrigerants R290-R170 for COVID-19 vaccines storage

Cited by 15 publications

References 32 publications

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

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

Multi-objective optimization and 4E (energy, exergy, economy, environmental impact) analysis of a triple cascade refrigeration system

Energy and Exergy Analysis of Cascade Mixed Refrigerant Joule–Thomson System with the Application of a Precooler

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