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A mathematical model for the direct evaporative cooling air conditioning is presented. Three dimensions solid evaporative cooling pad is regard as a big two dimensions plane. In order to avoid determining length and width of the plane, the set of partial differential equation is transformed to nondimensional form. Then directly calculate the product ( aaA) so as to avoid measuring aa and A. Finally, the set of partial differential equation can be solved.
This work was supported by the specific research projects foundation of the education department of Shaanxi province (No.12JK0918) and the Doctoral Scientific Research Foundation of Xi’an Polytechnic University Grant (No.BS0714).
[1] Peilin Cheng, Application of evaporative cooling technology in air conditioning [J]. Xi’an Refrigeration, №1, pp.1-7, 1999 (in Chinese)
[2] Boris Halasz, A general mathematical model of evaporative cooling devices [J]. Rev. Gen. Therm.(1998)37, pp.245-255 Elsevier, Paris
[3] N.J. Stoitchkov, G.I. Dimitrov, Effectiveness of crossflow plate heat exchanger for indirect evaporative cooling [J]. Int. J. Refrig. Vol.21, n.6, pp.463-471, 1998
[4] Dai, Y.J., Sumathy, K., Theoretical Study on a cross-flow direct evaporative cooler using honeycomb paper as packing material [J]. Applied Thermal Engineering,22, pp.1417-1430
[5] J.R. Camargo, C.D. Ebinuma, S. Cardoso, A mathematical model for direct evaporative cooling air conditioning system [J]. Engenharia Térmica, nº 4, 2003 pp. 30-34
[6] Qiang Tian-wei, Study on Evaporative Cooling Energy Saving Technology Used in Ventilating and Air Conditioning Equipment [doctoral dissertation]. Donghua University (2006)