Water Evaporator and Condenser Equations Air condition load, evaporator and condenser water flow rate Sponsored Links
The total heat can be expressed as: h = cp Ď q dt = 500 q dt
(1)
where h = heat load (Btu/h) cp = 1 (Btu/lbm oF) for water Ď = 8.33 (lbm/gal) for water q = water volume flow rate (gal/min) dt = temperature difference (oF) Evaporator water flow rate can be expressed as qevap = 24 hevap / dt
(2)
where qevap = evaporator water flow rate (gallons per minute - gpm) hevap = air condition load (1 refrigeration ton = 1 TONScond = 12,000 Btu/h = 3,025.9 k Calories/h = 12,661 kJ/h ) Condenser water flow rate can be expressed as qcond = 30 hcond / dt
(3)
where qcond = condenser water flow rate (gallons per minute - gpm) hcond = air condition load, chiller tonnage (1 refrigeration ton = 1 TONScond = 12,000 Btu/h = 3,025.9 k Calories/h = 12,661 kJ/h )