A room 'n maintained at 22C DB and 50% RH. Sensible heat in Latent heat in Determine 10.8kW 7.2 kW Cooling coil and heater Capacity using psychometric chart. Assume: sea level site Elevation. Data Given! - Outdoor Arr: 28C, 80% RH Outdoor Air Ratio: Apparatus Dew Point (ADP) Neglect contact factor. Damper 1 Outside Air Exhaust Air R Return Air fam -Cooling . 20% - 8c Heater Supply air fan +++ : Supply Air ROOM sensible Gain=108 Kw Latent +R Return Air Gain = 7.2KW HINT. 1. Draw OA point. 2. Draw R point 3. Connect D&R 4. Find out mixed air point (M) Problem 1 is 10.8W 22C D and So%. RM. Sensible heat 2 Lalent heat 7.2 kw Outdoor air 28c DB 80%.RM " air rano z 208. Dew pomt (AOP) -8c Coll contact factor>1.0 92800+807 427743148 room temp - 22C Satura 50% 0.2mt Supply wur room room air W = 0.0191 9148 2 0.86 m 14 W3T2 25% Chart State 2 BozzC GRSOY' WBT 2 15.2 c 20185 42 43 421 n Wz 0.00 82 ng do dy SH 2 m (ha-hb) 82m (7-5)" m20.24 4917 LH20,24 Chc-hb) 220.244-77) hez 85.33 #3/4) KHz 91% WBT2 27 20.89m 17 air - msha+miniz mehz hzz (0.142x8.33) +1204877) 526.0262474g dig air room condemn 22C 2 RH SOC m (hi-hs) 0.24(43-23) 4.32 un 0.24 Miz 0.048 uyes 2 ms201142 ug/s Specific humidib = msws +miwi W2= 0.0240 ufus mi mlhi-hs) 214.07 WN 4,32 kW