A data-driven energy management strategy based on performance prediction for cascade refrigeration systems

Li, Yanpeng; Pan, Xiaogang; Liao, Xinzhong; Xing, Ziwen

doi:10.1016/j.ijrefrig.2022.01.012

Cited by 14 publications

(3 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Point 3 represents the state before throttling, and point 4 represents the state before evaporation. By quantitatively determining the thermodynamic state of the refrigerant at the import and export of each component, the enthalpy changes during each working process can be calculated [36].…”

Section: Thermodynamic Modelmentioning

confidence: 99%

“…In this paper, the efficiency is defined as the ratio of the isentropic compression power to the input power of the drive motor, determined by Equation (5). According to experience, the isentropic efficiency of the compressor is strongly related to the pressure ratio [36]. In this paper, the efficiency is fitted based on the actual experimental data of the compressor.…”

Section: Thermodynamic Modelmentioning

confidence: 99%

See 1 more Smart Citation

Techno-Economic Analysis of the Peak Shifting Strategy Based on Time-of-Use Tariff for Cold Stores

Li,

Wang,

et al. 2023

Applied Sciences

Self Cite

View full text Add to dashboard Cite

The energy consumption in the cold store is growing day by day, 70% of which is consumed by the refrigeration system. Meanwhile, a significant amount of electricity generated by power plants is wasted during off-peak periods. Demand-side management (DSM) provides a viable solution for addressing the problem of the time and space inconsistency between energy supply and consumption, hence improving overall system efficiency. In this paper, an artificial intelligence model is developed for accurate cooling load forecasting. On this basis, a peak shifting control strategy with two optional modes combining temperature setpoint control and operation mode control is then proposed to realize cost reductions. Taking a large-scale cold store as a case study, the cooling capacity supply and temperature variation within two typical working days are investigated to illustrate the feasibility and applicability of the strategy. Detailed thermodynamic and thermo-economic analyses of the proposed strategy are then carried out to demonstrate the control effect. The results show that both modes have good peaking performances and the average cost reduction rate of the two modes reaches 40% and 13.4%, respectively.

show abstract

Section: Thermodynamic Modelmentioning

confidence: 99%

Section: Thermodynamic Modelmentioning

confidence: 99%

Techno-Economic Analysis of the Peak Shifting Strategy Based on Time-of-Use Tariff for Cold Stores

Li,

Wang,

et al. 2023

Applied Sciences

Self Cite

View full text Add to dashboard Cite

show abstract

“…Soni et al 10 compared the comprehensive performance of a CRS with refrigerant pairs R744‐R717, R744‐R1234yf, and R744‐R1234ze. Li et al 11 adopted a data‐driven model and a knowledge‐driven model to improve the COP and reduce the power consumption of a R744‐R717 CRS.…”

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

View full text Add to dashboard Cite

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.

show abstract

A step towards digital operations—A novel grey-box approach for modelling the heat dynamics of ultra-low temperature freezing chambers

et al. 2023

View full text Add to dashboard Cite

A data-driven energy management strategy based on performance prediction for cascade refrigeration systems

Cited by 14 publications

References 27 publications

Techno-Economic Analysis of the Peak Shifting Strategy Based on Time-of-Use Tariff for Cold Stores

Techno-Economic Analysis of the Peak Shifting Strategy Based on Time-of-Use Tariff for Cold Stores

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

A step towards digital operations—A novel grey-box approach for modelling the heat dynamics of ultra-low temperature freezing chambers

Contact Info

Product

Resources

About