The above restaurant has total sensible load of 180,000 BTUH and the total cooling load of...
The above restaurant has total sensible load of 180,000 BTUH and the total cooling load of 250,000 BTUH with the conditions-indoor (75F DB, 50% RH), Outdoor (88F DB, 68F WB), answer the following: (a) If restaurant increases its O.A ventilation rate from 520 CFM to 800 CFM, re-calculate the total cooling load (BTUH and Tonnage) (b) Will this change affect the total CFM of supply fan? (c) if an A/C costs $3,500/ton, the change of ventilation rate will increase the cost of A/C by ____?
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The above restaurant has total sensible load of 180,000 BTUH and
the total cooling load of...
A motel in Miami, Florida has a sensible cooling load of 75 tons and a sensible...
A motel in Miami, Florida has a sensible cooling load of 75 tons and a sensible heat ratio on the building of 0.85. Each of the motel's 100 rooms must be supplied with 30 cfm of outside air to satisfy the local ventilation codes. If the rooms are kept at 75F and 50% R.H., determine: a.) sketch of the system b.) Air flow to the building in cfm (fan size) c.) The mixed air condition-temperature and humidity d.) The cooling...
An office building requires the following cooling load: RSCL = 480,000 BTU/hr RLCL 250,000 BTU/Hr Outdoor...
An office building requires the following cooling load: RSCL = 480,000 BTU/hr RLCL 250,000 BTU/Hr Outdoor design condition: 100 F DB and 78 F WB Room Design Condition: 70 F DB, 50 % RH Required Outside Air: 1,800 CFM Supply Air Temperature Difference 30°F (Difference between the room temperature and the supply air temperature) Which one of the following represents the Dry Bulb'temperature of the Supply Air? 40 °F 78 OF 100 °F None of the above
An office building...
a. the sensible heat ratio (SHR) for the cooling and dehumidifying process; (2 Marks) b. the...
a. the sensible heat ratio (SHR) for the cooling and
dehumidifying process; (2 Marks) b. the supply air volume flow rate
to the office in m3 /s; (5 Marks) c. the air dry bulb temperature
and specific enthalpy of the mixture of outdoor and recirculating
air; (4 Marks) d. the cooling coil’s load in kW. (5 Marks) e. the
apparatus dew point during the cooling and dehumidifying process;
and (4 Marks) f. Discuss, with reasons, the possible effects on the...
An Conference Center is to be air-conditioned for a seating capacity of 3200 people for the...
An Conference Center is to be air-conditioned for a seating capacity of 3200 people for the following outdoor and comfort conditions a) Outdoor design conditions = 35 °C, db and 65% R.H b) Indoor/return design conditions-26 deg C. db and 55% RH. c) Total sensible room load = 420,000 kJ/hr d) Total latent room load = 200,000 KJ/hr e) The rise in dry bulb temperature of the air inside the conference center is limited to 9 °C (i.e. the Supply...
1 2 Calculate the following cooling load components at 18:00 hour of August month for the...
1
2
Calculate the following cooling load components at 18:00 hour of August month for the shown hall: (a) Heat transferred through floor, ceiling and doors. (b) Heat gain due to solar effects. (c) Heat gain through the glass windows. (d) Heat gain due to occupants. (e) The heat gain due to lights. (1) Heat transmitted due to infiltration. (g) The total cooling load. The following data are given: The ceiling height is 3.0 m. The hall has eight glass...
An office building requires the following cooling load: RSCL = 480,000 BTU/hr RLCL 250,000 BTU/Hr Outdoor design condition: 100 F DB and 78 F WB Room Design Condition: 70 F DB, 50 % RH Required Outside Air: 1,800 CFM Supply Air Temperature Difference 30°F (Difference between the room temperature and the supply air temperature) Which one of the following represents the Dry Bulb'temperature of the Supply Air? 40 °F 78 OF 100 °F None of the above
An office building...
a. the sensible heat ratio (SHR) for the cooling and
dehumidifying process; (2 Marks) b. the supply air volume flow rate
to the office in m3 /s; (5 Marks) c. the air dry bulb temperature
and specific enthalpy of the mixture of outdoor and recirculating
air; (4 Marks) d. the cooling coil’s load in kW. (5 Marks) e. the
apparatus dew point during the cooling and dehumidifying process;
and (4 Marks) f. Discuss, with reasons, the possible effects on the...
An Conference Center is to be air-conditioned for a seating capacity of 3200 people for the following outdoor and comfort conditions a) Outdoor design conditions = 35 °C, db and 65% R.H b) Indoor/return design conditions-26 deg C. db and 55% RH. c) Total sensible room load = 420,000 kJ/hr d) Total latent room load = 200,000 KJ/hr e) The rise in dry bulb temperature of the air inside the conference center is limited to 9 °C (i.e. the Supply...
1
2
Calculate the following cooling load components at 18:00 hour of August month for the shown hall: (a) Heat transferred through floor, ceiling and doors. (b) Heat gain due to solar effects. (c) Heat gain through the glass windows. (d) Heat gain due to occupants. (e) The heat gain due to lights. (1) Heat transmitted due to infiltration. (g) The total cooling load. The following data are given: The ceiling height is 3.0 m. The hall has eight glass...
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