ΔT = water temperature difference from tower top to tower bottom, in ☌Ĭ p = specific heat of water = 4.184 kJ / kg / ☌ H V = latent heat of vaporization of water = ca. X C / X M = Cycles = M / (D + W) = M / (M û E) = 1 + įrom a simplified heat balance around the cooling tower: M (X M) = D (X C) + W (X C) = X C (D + W) Since the evaporated water (E) has no salts, a chloride balance around the system is: X C = Concentration of chlorides in circulating water (C), in ppmwĬycles = Cycles of concentration = X C / X MĪ water balance around the entire system is: X M = Concentration of chlorides in make-up water (M), in ppmw X = Concentration in ppmw (of any completely soluble salts à usually chlorides) Here are the governing relationships for the makeup flow rate, the evaporation and windage losses, the draw-off rate, and the concentration cycles in an evaporative cooling tower system:
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |