Analisys of Effect of Outside Air Speed To Air Humidity and Refrigerator Coefficient of Performance
DOI:
https://doi.org/10.36706/jmse.v3i1.18Keywords:
air conditioning, air mixing, air humidity, coefficient of performanceAbstract
Air conditioning is essential for most humans and are associated with human thermal comfort. At conditioned room where the condition can occur outside air (atmosphere) into the room. Althouht the author was interested in researching this influx of outside air. The aims of this research would be able to examine the effect of the entry of outside air to the room air humidity and refrigerator coefficient of performance. The method used is to perform laboratory-scale experiment with conditioned room with air conditioning or no air conditioning which then incorporate outside air into the room. From this experiment would get experimental result, the result of theoretical calculation, and the result of calculation by using the simulator program. By entering the outside air was obtained that the outside air increases the humidity in the room and affect refrigerator coefficient of performance. The experimental results showed that the average maximum condition occurs at a speed of 1 m/s and at 20 minutes. It can be concluded that the outside air entering the room using the air conditioner would improve indoor air humidity and increase the cooling load means affect refrigerator coefficient of performance. And in a room without air conditioner caused indoor air humidity getting closer to the comfort zone.
Downloads
References
Alsmo, T., and Alsmo, C. 2014. “Ventilation and Relative Humidity in Swedish Buildings,” Journal of Environmental Protection, 5, 1022-1036.
Ali, A. H. H., and Ismail, I. M. 2007. “Effects of condensate and initial formation of thin frost layer on evaporator coil performance of room air- conditioners,” Jordan Journal of Mechanical and Industrial Engineering, Pages 69 – 77.
Cengel, Y.A., and Boles, M.A. 2006. “Thermodynamics: An Engineering Approach,” 5th ed., McGraw-Hill.
Chandra, A., and Chhabra, R. P. 2012. “Effect of Prandtl Number on Natural Convection Heat Transfer from a Heated Semi-Circular Cylinder,” International Journal of Chemical and Biological Engineering 6
Labtech Team. 2014. Experiment Manual to Recirculating Air Conditioning Trainer. Model: RAD-RAC-A, Labtech International LTD, Batam.
Mustafa, A. T. 2011. “Experimental study of air flow rate effects on humidification parameters with preheating and dehumidification process changing,” ARPN Journal of Engineering and Applied Sciences, Vol. 6, No. 9.
Pande, M. Y., and Patil, A. 2014. “Comparative Study of Different Passages over Dimpled Plate Evaporator for a Small Water Cooler,” International Journal, Vol. 2, Issue 7, Pgs: 14-20.
Salokhe, V. M., Soni, P., and Tantau, H. J. 2005. “Spatial variability of air-humidity inside naturally ventilated tropical greenhouse,” Int. Agrophysics. 19, 329- 336.
Stoecker, W. F., and Jones, J.W. 1982. “Refrigeration and Air Conditioning,” McGraw-Hill, Singapore.
Taras, M. F. 2006. “Evaluation of Mechanical Dehumidification Concepts (Part 1),” International Refrigeration and Air Conditioning Conference. Paper 746.
Taras, M. F. 2006. “Evaluation of Mechanical Dehumidification Concepts (Part 2),” International Refrigeration and Air Conditioning Conference. Paper 747.
Venkataiah, S., and Rao, G. V. 2014. “Analysis of Alternative Refrigerants to R22 for Air-Conditioning Applications at Various Evaporating Temperatures,” Int. Journal of Engineering Research and Applications, Vol. 4, Issue 3 (Version 2), pp.39-46.
Venkatesh, S., Ramkumar, K., and Amirtharajan, R. 2014. “Design of controllers based on the identified model for the humidifying pilot plant,” Journal of Applied Sciences 14 (20), 2530-2535, DOI: 10.3923/jas.2014.2530.2535.
Zakaria, T. 1991. “Air Conditioning and Refrigeration,” Pusdiklat Perumka – L.P.M. I.T.B.
