engineering recuitment ISRO Scientist Mechanical Mock Test Refrigeration and Air Conditioning Air Conditioning Psychrometric Chart and Processes
A classroom is to be air-conditioned by obtaining the comfort conditions of 22°C DBT and 55% RH from outdoor conditions of 32°C DBT and 22°C WBT. The weight of outside air supplied is 30 kg/min. The comfort condition required is achieved first by chemical dehumidification and then by cooling with a cooling coil as shown in the psychometric chart below. The capacity of dehumidification in kg-hour is
1
3.5
2
4.1
3
5.4
4
6.8