clear; clc; printf('FUNDAMENTALS OF HEAT AND MASS TRANSFER \n Incropera / Dewitt / Bergman / Lavine \n EXAMPLE 7.3 Page 417 \n'); //Example 7.2 // Daily Water Loss //Operating Conditions v = 2; //[m/s] Air velocity Tsurr = 25+273; //[K] Surrounding Air Temperature H = .5; // Humidity w = 6; //[m] Width of pool L1 = 12; //[m] Length of pool e = 1.5; //[m] Deck Wide Ts = 25+273; //[K] Surface Temp of water //Table A.4 Air Properties at T = 298K uv = 15.7*10^-6; //[m^2/s] Kinematic Viscosity //Table A.8 Water vapor-Air Properties at T = 298K Dab = .26*10^-4; //[m^2/s] Diffusion Coefficient Sc = uv/Dab; //Table A.6 Air Properties at T = 298K rho = .0226; //[kg/m^3] L = L1+e; Re = v*L/uv; //Reynolds number //Equation 7.41 yields ShLe = .037*Re^.8*Sc^.3334; //Equation 7.44 p = 8; //Turbulent Flow ShL = (L/(L-e))*ShLe*[1-(e/L)^((p+1)/(p+2))]^(p/(p+1)); hmL = ShL*(Dab/L); n = hmL*(L1*w)*rho*(1-H); printf("\n Reynolds Number is %.2e. Hence for turbulent Flow p = 8 in Equation 7.44.\n Daily Water Loss due to evaporation is %i kg/day",Re,n*86400); //END