3. In a cooling towe a air stream enters the tower at dry bulb temperature of 27C and wet bulb temperature of 21C ind leaves the tower at dry bulb temperature of 33C and relative humidity of 80%. Water enters at a temperature of 39C and leaves at a temperature of 25C at a flow rate of 20kg/s and air flow rate is 100kg/s. in addition, it was found that the tower coefficient was 1.2. - Using the psychometric chart, for air entering the cooling tower find: relative humidity, specific volume and specific enthalpy. For air leaving the cooling tower find: wet bulb temperature, specific volume and specific enthalpy. - Calculate the transfer coefficient K. - Caiculate the approach and the range. - Caiculate the heat gained by air and the heat released by water. Explain the difference if there is a difference. Additional information: Effective interfacial area per unit packing a=750m2/m3. Volume of the tower is 30m2. Specific heat of water is 4.81kJ/kgK. mwKaV=T=Tw2dT/(h2h) 3. In a cooling towe a air stream enters the tower at dry bulb temperature of 27C and wet bulb temperature of 21C ind leaves the tower at dry bulb temperature of 33C and relative humidity of 80%. Water enters at a temperature of 39C and leaves at a temperature of 25C at a flow rate of 20kg/s and air flow rate is 100kg/s. in addition, it was found that the tower coefficient was 1.2. - Using the psychometric chart, for air entering the cooling tower find: relative humidity, specific volume and specific enthalpy. For air leaving the cooling tower find: wet bulb temperature, specific volume and specific enthalpy. - Calculate the transfer coefficient K. - Caiculate the approach and the range. - Caiculate the heat gained by air and the heat released by water. Explain the difference if there is a difference. Additional information: Effective interfacial area per unit packing a=750m2/m3. Volume of the tower is 30m2. Specific heat of water is 4.81kJ/kgK. mwKaV=T=Tw2dT/(h2h)