10008152

Evaporative coolers has a minimum potential to reach the wet-bulb temperature of intake air which is not enough to handle a large cooling load; therefore, it is not a feasible option to overcome cooling requirement of a building. The invention of Maisotsenko (M) cycle has led evaporative cooling technology to reach the sub-wet-bulb temperature of the intake air; therefore, it brings an innovation in evaporative cooling techniques. In this work, we developed a mathematical model of the Maisotsenko based air cooler by applying energy and mass balance laws on different air channels. The governing ordinary differential equations are discretized and simulated on MATLAB. The temperature and the humidity plots are shown in the simulation results. A parametric study is conducted by varying working air inlet conditions (temperature and humidity), inlet air velocity, geometric parameters and water temperature. The influence of these aforementioned parameters on the cooling effectiveness of the HMX is reported. Results have shown that the effectiveness of the M-Cycle is increased by increasing the ambient temperature and decreasing absolute humidity. An air velocity of 0.5 m/sec and a channel height of 6-8mm is recommended.

[1] O. Amer, R. Boukhanouf, and H. G. Ibrahim, “A Review of Evaporative Cooling Technologies,” Interantional J. Environ. Sci. Dev., vol. 6, no. 2, pp. 111–117, 2015.

[2] L. Pérez-Lombard, J. Ortiz, and C. Pout, “A review on buildings energy consumption information,” Energy Build., vol. 40, no. 3, pp. 394–398, 2008.

[3] E. . Machlin, An Introduction to Aspect of Thermodynamics and Kinetics relevant to Material science, vol. 1. 2015.

[4] IEA (International Energy Agency), “Renewables for heating and cooling,” Technology, pp. 1–210, 2007.

[5] Y. Jiang and X. Xie, “Theoretical and testing performance of an innovative indirect evaporative chiller,” Sol. Energy, vol. 84, no. 12, pp. 2041–2055, 2010.

[6] B. Riangvilaikul and S. Kumar, “An experimental study of a novel dew point evaporative cooling system,” Energy Build., vol. 42, no. 5, pp. 637–644, 2010.

[7] G. L, “Maisotsenko Cycle for Cooling Processes,” Clean Air, vol. 9, pp. 1–18, 2008.

[8] H. Caliskan, A. Hepbasli, I. Dincer, and V. Maisotsenko, “Thermodynamic performance assessment of a novel air cooling cycle: Maisotsenko cycle,” Int. J. Refrig., vol. 34, no. 4, pp. 980–990, 2011.

[9] X. Cui, K. J. Chua, M. R. Islam, and W. M. Yang, “Fundamental formulation of a modified LMTD method to study indirect evaporative heat exchangers,” Energy Convers. Manag., vol. 88, pp. 372–381, 2014.

[10] X. Cui, K. J. Chua, and W. M. Yang, “Numerical simulation of a novel energy-efficient dew-point evaporative air cooler,” Appl. Energy, vol. 136, pp. 979–988, 2014.

[11] X. Zhao, J. M. Li, and S. B. Riffat, “Numerical study of a novel counter-flow heat and mass exchanger for dew point evaporative cooling,” Appl. Therm. Eng., vol. 28, no. 14–15, pp. 1942–1951, 2008.

[12] G. L. Ding, T. T. Wang, J. D. Gao, Y. X. Zheng, Y. F. Gao, and J. Song, Developing simulation tools for design of low charge vapour compression refrigeration systems. Woodhead Publishing Limited, 2013.

[13] W. Z. Gao, Y. P. Cheng, a. G. Jiang, T. Liu, and K. Anderson, “Experimental investigation on integrated liquid desiccant – Indirect evaporative air cooling system utilizing the Maisotesenko – Cycle,” Appl. Therm. Eng., vol. 88, pp. 288–296, 2015.

[14] S. Anisimov and D. Pandelidis, “Numerical study of the Maisotsenko cycle heat and mass exchanger,” Int. J. Heat Mass Transf., vol. 75, pp. 75–96, 2014.

[15] M. Jradi and S. Riffat, “Experimental and numerical investigation of a dew-point cooling system for thermal comfort in buildings,” Appl. Energy, vol. 132, pp. 524–535, 2014.

[16] D. Pandelidis and S. Anisimov, “Numerical analysis of the selected operational and geometrical aspects of the M-cycle heat and mass exchanger,” Energy Build., vol. 87, pp. 413–424, 2015.

[17] S. Anisimov, D. Pandelidis, and J. Danielewicz, “Numerical analysis of selected evaporative exchangers with the Maisotsenko cycle,” Energy Convers. Manag., vol. 88, pp. 426–441, 2014.

[18] D. Pandelidis and S. Anisimov, “Numerical analysis of the heat and mass transfer processes in selected M-Cycle heat exchangers for the dew point evaporative cooling,” Energy Convers. Manag., vol. 90, pp. 62–83, 2015.

[19] S. Anisimov, D. Pandelidis, and V. Maisotsenko, “Numerical study of heat and mass transfer process in the Maisotsenko cycle for indirect evaporative air cooling,” Heat Transf. Eng., vol. 7632, no. JANUARY, pp. 1–40, 2016.

[20] O. Khalid, M. Ali, N. A. Sheikh, H. M. Ali, and M. Shehryar, “Experimental analysis of an improved Maisotsenko cycle design under low velocity conditions,” Appl. Therm. Eng., vol. 95, pp. 288–295, 2016.

[21] C. Zhan, Z. Duan, X. Zhao, S. Smith, H. Jin, and S. Riffat, “Comparative study of the performance of the M-cycle counter-flow and cross-flow heat exchangers for indirect evaporative cooling - Paving the path toward sustainable cooling of buildings,” Energy, vol. 36, no. 12, pp. 6790–6805, 2011.

[22] E. N. Sieder and G. E. Tate, “Heat Transfer and Pressure Drop of Liquids in Tubes,” Ind. Eng. Chem., vol. 28, pp. 1429–1435, 1936.

[23] J. R. Welty, C. E. Wicks, R. E. Wilson, and G. L. Rorrer, Fundamentals of Momentum, Heat, and Mass Transfer. 2008.

[24] E. L. Cussler, “Diffusion: Mass Transfer in Fluid Systems,” Engineering, vol. Second, p. 580, 1997.