Home / Current Issue / Paper 1701278
DEVELOPMENT OF A MODEL FOR DESIGN OF DOUBLE - EFFECT VAPOUR ABSORPTION REFRIGERATION SYSTEMS
Subject area: Science,Engineering and Technology · Area of research: Mechanical Engineering
Abstract
Increasing cost of electricity and environmental degradation, emanates from the usage CFC refrigerants have made the heat from renewable energy sources for absorption refrigeration systems attractive for application in residential, commercial and industrial sectors. In this research work, mathematical model for a double effect reserve ? parallel vapour absorption refrigeration system was developed. Software was developed for the system using MATLAB Programming Language. The software was simulated and design parameters needed for the analysis of the system were generated. The model was validated by comparing its result with those from literature and showed good agreement with an average deviation of 20%. The model was used to estimate both refrigeration capacity and the coefficient of performance (COP). Highest COP was obtained when the concentration of the diluted solution in the evaporator was 62.2%. Generally the COP increases with increasing concentration of the solution in the absorber. The software developed can be used to predict design parameters for double-effect reverse-parallel VARS over a wide range of heat input.
Keywords
design, double-effect, reverse-parallel, software, VARS
References
[1] Adedoyin, F. H. (2016) Development of a Computer-Aided Application for Double-Effect Vapour Absorption Refrigeration System. M. Eng. Thesis at the Federal University of Technology, Akure (unpublished).
[2] Affandi, M; Mamat N; Kanafiah, S. N. and Khalid, N. S, (2013) simplified Equations for Saturated Steam Properties for Simulation Purposes. Procedia Engineering. Vol. 5 pp 722-726.
[3] Akintunde, M. A. (2004) Development of Design Model for Vapour Compression Refrigeration Systems. Ph.D Thesis, at the Federal University of Technology, Akure.
[4] Akintunde, M. A.; Adegoke, C. O. and Fapetu, O. P. (2006) Experimental Investigation of the Performance of a Design Model Indies Journal of Engineering, Vol. 28 No 2, pp 80-87.
[5] Asdrubali F. and Grignaffini S, (2005) Experimental Evaluation of the Performance of a H2O/LiBr Absorption Refrigerator under different service conditions. International Journal of Refrigeration, Vol. 28, pp 489-497.
[6] ASHRAE (1997) HVAC Fundamental Handbook, American Society of Heating, Refrigeration and Air-Conditioning Engineers Inc., Atlanta, GA.
[7] Azhar M., and Siddiqui M. A., (2013) Thermodynamic Analysis of a Gas Operated Triple Effect Absorption Cycle. International Journal of Innovative Research in Science, Engineering and Technology, Vol. 2, No.5, pp 1610-1616.
[8] Mohendru, P., Agrawal,, S. K.; and Pachovkar, P. (2012) Steady State Analysis of Vapour Absorption Refrigeration Systems using LiBr-H20. International Journal of Engineering Technology and Advanced Engineering. Vol. 2 No.9, pp 328- 332.
[9] McNeedy L. A., (1997) Thermodynamic Properties of Aqueous Solution of Lithium Bromide. ASHRAE Transaction, Vol. 85 No.1, pp 413-434.
[10] Micallet, D. and Micallet, C. (2010) Mathematical Model of a Vapour Absorption Refrigeration Unit. International Journal of Simulation Modeling, Vol. 9 No. 2, pp 86-97.
[11] Oberweis, S. and Al-Shemmeri, T. (2012) Performance Evaluation of a Lithium Chloride Absorption Refrigeration and an Assessment of its Suitability for Biomass Waste Heat. Applied Sciences Journal. Vol. 2, No. 4, pp 709-725.
[12] Sawalhah S. (2016) Solar Assisted Automobile A/C Based on a Water -Lithium Bromide Absorption Refrigeration System. International Journal of Research in Engineering and Advanced Technology, Vol. 3, No 6, pp 49-61.
[13] Wang R. and GAO H. (2013) Nemerical Study on Vapour Absorption into Aqueous LiBr Solution in a Liquid-Gas Ejector Using Convergent Nozzle. Research Journal of Applied Science, Engineering and Technology, Vol. 5, No 14, pp 3727-3731.
How to cite this paper
@article{1701278,
author = {Mutalubi Aremu Akintunde, Kareem Adebayo Adetoro, Funmilola Helen Adedoyin},
title = {DEVELOPMENT OF A MODEL FOR DESIGN OF DOUBLE - EFFECT VAPOUR ABSORPTION REFRIGERATION SYSTEMS},
journal = {Iconic Research And Engineering Journals},
year = {2019},
volume = {2},
number = {12},
pages = {65-73},
issn = {2456-8880},
url = {https://www.irejournals.com/formatedpaper/1701278.pdf},
abstract = {Increasing cost of electricity and environmental degradation, emanates from the usage CFC refrigerants have made the heat from renewable energy sources for absorption refrigeration systems attractive for application in residential, commercial and industrial sectors. In this research work, mathematical model for a double effect reserve ? parallel vapour absorption refrigeration system was developed. Software was developed for the system using MATLAB Programming Language. The software was simulated and design parameters needed for the analysis of the system were generated. The model was validated by comparing its result with those from literature and showed good agreement with an average deviation of 20%. The model was used to estimate both refrigeration capacity and the coefficient of performance (COP). Highest COP was obtained when the concentration of the diluted solution in the evaporator was 62.2%. Generally the COP increases with increasing concentration of the solution in the absorber. The software developed can be used to predict design parameters for double-effect reverse-parallel VARS over a wide range of heat input.},
keywords = {design, double-effect, reverse-parallel, software, VARS},
month = {June},
}