THERMAL SCIENCE
International Scientific Journal
INFLUENCE OF COMPRESSOR SPEED ON THE PERFORMANCE OF LOW PRESSURE VAPOR-INJECTED REFRIGERATION SYSTEMS
ABSTRACT
For the problems of high compressor discharge temperature and system performance decay during the operation of cold storage, a parallel flow heat exchanger based low pressure make-up gas refrigeration system experimental bench was designed and built, and the changes of refrigeration system performance were analyzed under different compressor speeds. The results show that when the compressor speed increases from 2500 rpm to 4500 rpm, the compressor discharge temperature increases, the refrigeration capacity increases by 39.53% and the compressor power increases by 38.89%, in addition, as the speed increases, the system COP shows a trend of first increasing and then decreasing, with the best value of 2.71 at 3500 rpm.
KEYWORDS
PAPER SUBMITTED: 2021-12-23
PAPER REVISED: 2022-09-16
PAPER ACCEPTED: 2022-10-24
PUBLISHED ONLINE: 2024-05-18
THERMAL SCIENCE YEAR
2024, VOLUME
28, ISSUE
Issue 3, PAGES [2043 - 2049]
- Li, C. C., et al., Optimization of Super Water-Retention Phase Change Gels for Cold Energy Storage in Cold Chain Transportation, Journal of Energy Storage, 61 (2013), 106719
- Jiang, J. J., et al., Environmental Prediction in Cold Chain Transportation of Agricultural Products Based on K-Means++ and LSTM Neural Network, Processes, 11 (2023), 3, 776
- Miao, Y., Design of Agricultural Product Cold Chain Transportation Monitoring System Based on Internet of Things Technology, Proceedings of the Indian National Science Academy, 89 (2023), 1, pp. 235-246
- Queiroz, M. V. A., et al., Experimental Comparison between R134a/R744 and R438A/R744 (Drop-in) Cascade Refrigeration Systems Based on Energy Consumption and Greenhouse Gases Emissions, Energy Science & Engineering, 9 (2021), 12, pp. 2281-2297
- Yang, Y., et al., Experimental Study on Performance of Double-mode Refrigeration System, Applied Thermal Engineering, 188 (2021), 9, pp. 116-172
- Jin, X. C., et al., Exploration and Analysis of the Number of Compression Stages Selected for Low temperature Refrigerated Storage Ammonia Refrigeration System, Refrigeration Technology, 42 (2019), 1, pp. 37-39+48
- Li, W. C., et al., Fuel Economy Analysis of Refrigerated Transport Vehicles Based on Photovoltaic Hybrid Refrigeration System, Journal of Chongqing Jiaotong University (Natural Science Edition), 38 (2019), 4, pp. 134-140
- Li, N., et al., Experimental Study on the Performance of a Medium Pressure Charge Air Type Pure Electric Bus Heat Pump Air Conditioning System, Fluid Mechanics, 47 (2019), 11, pp. 60-65
- Chen, C. B. Exploration of Compressor Make-up Enthalpy Technology, Modern Trade Industry, 41 (2020), 8, pp. 215-216
- Qin, F., et al., Experimental Investigation on Heat Pump for Electric Vehicles with different Refrigerant Injection Compressor, Energy Procedia, 75 (2015), 6, pp. 1490-1495
- Kim, D., et al., Performance Comparison Among Two-Phase, Liquid, and Vapor Injection Heat Pumps with a Scroll Compressor Using R410A, Applied Thermal Engineering, 137 (2018), June, pp. 193-202
- Wang, S. Q., et al., Skeletal Maturity Recognition Using a Fully Automated System with Convolutional Neural Networks, IEEE Access, 6 (2018), July, pp. 29979-29993
- Kuo, P. H., et al., Novel Fractional-Order Convolutional Neural Network Based Chatter Diagnosis Approach in Turning Process with Chaos Error Mapping, Non-linear Dynamics, 111 (2023), 8, pp. 7547-7564
- Kuo, P. H., et al., Branched Neural Network Based Model for Cutter Wear Prediction in Machine Tools", Structural Health Monitoring, 22 (2023), 4, pp. 2769-2784
- Wang, S. Q., et al., An Ensemble-Based Densely-Connected Deep Learning System for Assessment of Skeletal Maturity, IEEE Transactions on Systems, Man, and Cybernetics: Systems, 52 (2020), 1, pp. 426-437
- Wang, S. Q., et al., Prediction of Myelopathic Level in tensor Cervical Spondylotic Myelopathy Using Diffusion imaging, Journal of Magnetic Resonance Imaging, 41 (2015), 6, pp. 1682-1688
- Hu, S. Y., et al., Medical Image Reconstruction Using Generative Adversarial Network for Alzheimer Disease Assessment with Class-Imbalance Problem, Proceedings, IEEE 6th International Conference on Computer and Communications (ICCC), Chengdu, China, 2020, pp. 1323-1327
