Evaporator Formula

Evaporator Formula. PDF fileEvaporation Evaporation is the process in which a liquid changes to the gaseous state at the free surface below the boiling point through the transfer of heat energy The rate of evaporation is depended on the following (i)Vapour Pressure EL = C (ew – ea) Where EL = rate of evaporation (mm/day) C = a constant.

PDF file• In order to concentrate 4536 kg/h of an NaOH solution containing 10 wt% NaOH to a 20 wt% solution a singleeffect evaporator is being used with an area of 376 m2 The feed enters at 211 oC (2943 K) Saturated steam at 110 oC (3832 K) is used for heating and the pressure in the vapor space of the evaporator is 517 kPa.

RESISTOR ASSY 8153020200 for evaporator FORMULA 8203

g h = amount of evaporated water per hour ( k g / h) Θ = ( 25 + 19 v) = evaporation coefficient ( k g / ( m 2 h)) v = velocity of air above the water surface ( m / s) A = water surface area ( m 2) x s = humidity ratio in saturated air at the same temperature as the water surface ( k g / k g) ( k g H X 2 O in k g dry air).

formula for evaporator TD? HVACTalk: Heating, Air

PDF filePressure 97 37 Evaporator Pressure Bulb Pressure = opening force Spring and Evaporator Pressures = closing forces RPM of motor = 60Hz x 120_ No of Poles 1800 RPM Motor – slippage makes it about 1750 3600 RPM Motor – slippage makes it about 3450 DRY AIR = 780% Nitrogen 210% Oxygen 10% Other Gases WET AIR = Same as dry air plus water vapor.

Evaporation Calculations [PDF Document]

•The key factor in determining the economy of an evaporator is the number of effects •The economy of a single effect evaporator is always less than 10 •Multiple effect evaporators have higher economy but lower capacity than single effect •The thermal condition of the evaporator feed has an important impact on economy and performance.