OPTIMUM PARAMETRIC ANALYSIS BASED ON THERMODYNAMIC MODELING OF A COMPRESSION ABSORPTION CASCADE REFRIGERATION SYSTEM

In the present study a cascade refrigeration system (CRS) comprising of a vapor compression refrigeration (VCR) system in the low temperature (LT) stage and a single stage vapor absorption refrigeration (VAR) system in high temperature (HT) stage is analyzed. The scope of this work focuses on the effect of different parameters on the performance of the CRS with the help of a mathematical model. The energy and exergy analysis of the CRS is carried out with CO2 and NH3 as refrigerants in the VCR stage and the pair of H2O-LiBr fluids in the VAR stage. It is observed that COP and exergetic efficiency of the CRS reduce with increase in cascade condenser temperature with CO2 as a refrigerant in VCR stage whereas with NH3 as a refrigerant in VCR stage, the COP increases with increase in cascade condenser temperature, it attains a maximum value and then decreases.

___

  • [1] Chakravarthy, V.S., Shah, R.K., Venkatarathnam, G. (2011). A Review of Refrigeration Methods in the Temperature Range 4–300 K, J. Therm. Sci. Eng. Appl., 3, 02081.
  • [2] Cimsit, C., Ozturk IT. (2012). Analysis of compression-absorption cascade refrigeration cycle, Appl Therm Eng, 40, 311-317.
  • [3] Reddy, V.S., Kaushik, S.C., Tyagi, S.K. (2014). Exergetic analysis and evaluation of coal-fired supercritical thermal power plant and natural gas-fired combined cycle power Plant, Clean Techn Environ Policy, 16, 489–499.
  • [4] Reddy, V.S., Panwar, N.L., Kaushik, S.C. (2012). Exergetic analysis of a vapour compression refrigeration system with R134a, R143a, R152a, R404A, R407C, R410A, R502 and R507A, Clean Technologies and Environmental Policy, 14(1), 47-53.
  • [5] Seara, F., Sieres, J., Vazquez, M. (2006). Compression–absorption cascade refrigeration system, Applied Thermal Engineering 26, 502–512.
  • [6] Riffat, S.B., Shankland, N. (1993). Integration of absorption and vapor-compression systems, Applied Energy, 46(4), 303-316.
  • [7] Kairouani, L., Nehdi, E. (2006). Cooling performance and energy saving of a compression-absorption refrigeration system assisted by geothermal energy, Appl Therm Eng., 26, 288-94.
  • [8] Meng, X., Zheng, D., Wang, J., Li, X. (2013). Energy saving mechanism analysis of the absorption-compression hybrid refrigeration cycle, Renewable Energy, 57, 43-50.
  • [9] Colorado, D., Velazquez, V.M. (2013). Exergy analysis of a compression-absorption cascade system for refrigeration, Int. J. Energy Res, 37, 1851-65.
  • [10] Garimella, S., Brown, A.M., Nagavarapu, A.K. (2011). Waste heat driven absorption/vapor-compression cascade refrigeration system for megawatt scale, high-flux, low-temperature cooling, Int. J. Refrig., 34, 1776–1785.
  • [11] Seyfouri, Z., Ameri, M. (2012). Analysis of integrated compression-absorption refrigeration systems powered by a microturbine, International journal of Refrigeration, 35, 1639-1646.
  • [12] Wang, L., Aihua, M., Yingying, T., Xiaolong, Cui., Hongli, Cui. (2012). Study on Solar-Assisted Cascade Refrigeration System, International Conference on Future Energy, Environment, and Materials. Energy Procedia, 16, 1503 – 1509.
  • [13] Chen, Y., Han, W., Sun, L., Jin, H. (2015). A new absorption–compression refrigeration system using a mid-temperature heat source for freezing application, The 7th International Conference on Applied Energy – ICAE (2015), Energy Procedia, 75, 560 – 565.
  • [14] Arora, A., Dixit, M., Kaushik, S.C. (2016). Energy and exergy analysis of a double effect parallel flow LiBr/H2O absorption refrigeration system, Journal of Thermal Engineering, 2(1), 541-549.
  • [15] Kutlu, Ç., Ünal, Ş., Erdinc, M. T. (2016). Thermodynamic analysis of bi-evaporator ejector refrigeration cycle using R744 as natural refrigerant, Journal of Thermal Engineering, 2(2), 735-740.
  • [16] Dixit, M., Arora, A., Kaushik, S. C. (2016). Energy and exergy analysis of a waste heat driven cycle for triple effect refrigeration, Journal of Thermal Engineering, 2(5), 954-961. [17] Arora, A., Dixit, M., Kaushik, S.C. (2016). Computation of optimum parameters of a half effect water-lithium bromide vapour absorption refrigeration system”, Journal of Thermal Engineering, 2(2), 683-692.
  • [18] Jain, V., Sachdeva, G., Kachhwaha, S.S. (2013). NLP model based thermo-economic optimization of vapour compression–absorption cascaded refrigeration system, Energy Conversion and Management, 93, 49–62.
  • [19] Jain, V., Kachhwaha, S.S., Sachdeva, G. (2013). Thermodynamic performance analysis of a vapour compression–absorption cascaded refrigeration system, Energy Conversion and Management, 75, 685–700.
  • [20] Jain, V., Sachdeva, G., Kachhwaha, S.S., Patel, B. (2016). Thermo-economic and environmental analyses based multi-objective optimization of vapor compression–absorption cascaded refrigeration system using NSGA-II technique, Energy Conversion and Management, 113, 230–242.
  • [21] Dixit, M., Kaushik, S.C., Arora, A. (2015). Energy and exergy analysis of absorption-compression cascade refrigeration system, Journal of Thermal Engineering, 1(1), 1-12.
  • [22] Kaushik, S.C., Arora, A., Bilga P. S. (2016). Alternatives in Refrigeration and Air Conditioning, I.K. International House Publishing,1/e, India.
  • [23] Megdouli, K., Tashtoush, B.M., Nahdi, E., Elankhdar, M., Mhimid, A., Kairouani, L. (2017). Performance analysis of a combined vapor compression cycle and ejector cycle for refrigeration cogeneration, International journal of refrigeration, 74, 517–527.
  • [24] Patel, B., Desai, N.B., Kachhwaha, S.S. (2017). Thermo-economic analysis of solar-biomass organic Rankine cycle powered cascaded vapor compression-absorption system, Solar energy, 157, 920-933.
  • [25] Chen, Y., Han, W., Jin, H. (2017). Proposal and analysis of a novel heat driven absorption-compression refrigeration system at low temperatures, Applied Energy, 185, 2106-2116.
  • [26] Yingjie, Xu., Jiang, N., Qin Wang, Q., Han, X., Gao, Z., Chen, G. (2017). Proposal and thermodynamic analysis of an ejection-compression refrigeration cycle driven by low-grade heat, Energy Conversion and Management, 145, 343-352.
  • [27] Yingjie, Xu., Jiang, N., Pan, F., Wang, Q., Gao, Z., Chen, G. (2017). Comparative study on two low-grade heat driven absorption-compression refrigeration cycles based on energy, exergy, economic and environmental (4E) analyses, Energy Conversion and Management, 133, 535-347.
  • [28] Klein, S.A., Alvarado, F. (2005). Engineering Equation Solver Version 7.441, F-Chart software Middleton: WI.
  • [29] Pa.´tek, J., Klomfar, J. (2006). A computationally effective formulation of the thermodynamic properties of water–lithium bromide solutions from 273K to 500 K over full composition range, International Journal of Refrigeration, 29, 566–578.