NOTATION, AND GENERAL DATA

Cp = heat capacity at constant pressure C = heat capacity at constant volume gc = gravitational constant (numerical values in Table A1) h = individual heat transfer coefficient H = enthalpy k=thermal conductivity k=C iCv 

K = y/x = vaporization equilibrium ratio, VER m, = mass fraction of component i of a mixture M = molecular weight P= pressure 0 = volumatric flow rate 0 = heat transfer rate 

T = temperature, usually °R or °K u = linear velocity U = overall heat transfer coefficient V = volume 

B Most symbols are defined near where they are used in equations. Unless defined otherwise locally, certain notations have the meanings in this list. 

°F Absolute pressure, Ib/sq in. Latent heat of evaporation, Btu/lb Specific volume of steam, cu ft/lb Density of liquid water, Ib/cu ft Viscosity of liquid water, tentipoisea Thermal conductivity of liquid water, (Btu)(ft)/ (°F)(ft2)(hr) 

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UNITS. NOTATION. AND GENERAL DATA TABLE A7—(continued)... 

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