Note: Draw neat and label diagram wherever necessary, Assume suitable data if necessary Q.1 A chilling plant has inside dimensions 70 cm length, 50 cm width and 130 cm height. The walls of the...

Extracted text: Note: Draw neat and label diagram wherever necessary, Assume suitable data if necessary Q.1 A chilling plant has inside dimensions 70 cm length, 50 cm width and 130 cm height. The walls of the chilling plant are 3mm thick. Temperature inside the chilling plant is to be maintained at 4°C. The walls of chilling plant are insulated with fibre glass 75 mm thickness. The outer metal cover is provided over the insulation have 3 mm thickness. The surrounding air temperature is 30°C. Film coefficient of heat transfer at the inner surface of chilling plant and at the outer surface of the chilling plant are 10 W/m2 °C and 113.5 W/m2 °C respectively. k(metal wall) = 43 W/m °C , k(fibre glass) = 0.035 W/m °C At steady state operation, Calculate: 1) The rate of removal for chilling plant; 2) The temperature at the inner and outer surface of insulation; 3) Temperature at the outer surface of metal wall [7]