Air System Sizing Summary for Default System
Project Name: HMT LAB 12/13/2022
Prepared by: KFUEIT 10:25PM
Air System Information
Air System Name Default System Number of zones 1
Equipment Class UNDEF Floor Area 1145.5 ft²
Air System Type SZCAV Location Rahim Yar Khan, Pakistan
Sizing Calculation Information
Calculation Months Jan to Dec Zone CFM Sizing Sum of space airflow rates
Sizing Data Calculated Space CFM Sizing Individual peak space loads
Central Cooling Coil Sizing Data
Total coil load 7.3 Tons Load occurs at Jul 1600
Total coil load 87.0 MBH OA DB / WB 109.4 / 77.9 °F
Sensible coil load 74.3 MBH Entering DB / WB 82.8 / 67.7 °F
Coil CFM at Jul 1600 3054 CFM Leaving DB / WB 60.0 / 58.6 °F
Max block CFM 3054 CFM Coil ADP 57.5 °F
Sum of peak zone CFM 3054 CFM Bypass Factor 0.100
Sensible heat ratio 0.853 Resulting RH 54 %
CFM/Ton 421.1 Design supply temp. 58.0 °F
ft²/Ton 157.9 Zone T-stat Check 0 of 1 OK
BTU/(hr·ft²) 76.0 Max zone temperature deviation 0.1 °F
Water flow @ 10.0 °F rise 17.42 gpm
Central Heating Coil Sizing Data
Max coil load 17.3 MBH Load occurs at Des Htg
Coil CFM at Des Htg 3054 CFM BTU/(hr·ft²) 15.1
Max coil CFM 3054 CFM Ent. DB / Lvg DB 65.9 / 71.2 °F
Water flow @ 20.0 °F drop 1.73 gpm
Supply Fan Sizing Data
Actual max CFM 3054 CFM Fan motor BHP 0.09 BHP
Standard CFM 3023 CFM Fan motor kW 0.07 kW
Actual max CFM/ft² 2.67 CFM/ft²
Outdoor Ventilation Air Data
Design airflow CFM 570 CFM CFM/person 22.81 CFM/person
CFM/ft² 0.50 CFM/ft²
Hourly Analysis Program 5.10 Page 1 of 7
Zone Sizing Summary for Default System
Project Name: HMT LAB 12/13/2022
Prepared by: KFUEIT 10:25PM
Air System Information
Air System Name Default System Number of zones 1
Equipment Class UNDEF Floor Area 1145.5 ft²
Air System Type SZCAV Location Rahim Yar Khan, Pakistan
Sizing Calculation Information
Calculation Months Jan to Dec Zone CFM Sizing Sum of space airflow rates
Sizing Data Calculated Space CFM Sizing Individual peak space loads
Zone Terminal Sizing Data
Reheat Zone Zone
Design Minimum Reheat Coil Htg Unit Htg Unit Mixing
Supply Supply Coil Water Coil Water Box Fan
Airflow Airflow Zone Load gpm Load gpm Airflow
Zone Name (CFM) (CFM) CFM/ft² (MBH) @ 20.0 °F (MBH) @ 20.0 °F (CFM)
Zone 1 3054 3054 2.67 0.0 0.00 0.0 0.00 0
Zone Peak Sensible Loads
Zone Zone Zone
Cooling Time of Heating Floor
Sensible Peak Sensible Load Area
Zone Name (MBH) Cooling Load (MBH) (ft²)
Zone 1 55.5 Jul 1700 5.9 1145.5
Space Loads and Airflows
Time of
Cooling Peak Air Heating Floor
Zone Name / Sensible Sensible Flow Load Area Space
Space Name Mult. (MBH) Load (CFM) (MBH) (ft²) CFM/ft²
Zone 1
HMT Lab 1 55.5 Jul 1700 3054 5.9 1145.5 2.67
Hourly Analysis Program 5.10 Page 2 of 7
Air System Design Load Summary for Default System
Project Name: HMT LAB 12/13/2022
Prepared by: KFUEIT 10:25PM
DESIGN COOLING DESIGN HEATING
COOLING DATA AT Jul 1600 HEATING DATA AT DES HTG
COOLING OA DB / WB 109.4 °F / 77.9 °F HEATING OA DB / WB 49.0 °F / 41.1 °F
Sensible Latent Sensible Latent
ZONE LOADS Details (BTU/hr) (BTU/hr) Details (BTU/hr) (BTU/hr)
Window & Skylight Solar Loads 64 ft² 3851 - 64 ft² - -
Wall Transmission 858 ft² 5480 - 858 ft² 4177 -
Roof Transmission 0 ft² 0 - 0 ft² 0 -
Window Transmission 64 ft² 1990 - 64 ft² 1349 -
Skylight Transmission 0 ft² 0 - 0 ft² 0 -
Door Loads 38 ft² 492 - 38 ft² 333 -
Floor Transmission 0 ft² 0 - 0 ft² 0 -
Partitions 0 ft² 0 - 0 ft² 0 -
Ceiling 0 ft² 0 - 0 ft² 0 -
Overhead Lighting 120 W 409 - 0 0 -
Task Lighting 60 W 205 - 0 0 -
Electric Equipment 10750 W 36679 - 0 0 -
People 25 6125 5125 0 0 0
Infiltration - 0 0 - 0 0
Miscellaneous - 0 0 - 0 0
Safety Factor 0% / 0% 0 0 0% 0 0
>> Total Zone Loads - 55231 5125 - 5860 0
Zone Conditioning - 54069 5125 - 4940 0
Plenum Wall Load 0% 0 - 0 0 -
Plenum Roof Load 0% 0 - 0 0 -
Plenum Lighting Load 0% 0 - 0 0 -
Return Fan Load 3054 CFM 0 - 3054 CFM 0 -
Ventilation Load 570 CFM 19957 7642 570 CFM 12593 0
Supply Fan Load 3054 CFM 239 - 3054 CFM -239 -
Space Fan Coil Fans - 0 - - 0 -
Duct Heat Gain / Loss 0% 0 - 0% 0 -
>> Total System Loads - 74265 12767 - 17294 0
Central Cooling Coil - 74265 12774 - 0 0
Central Heating Coil - 0 - - 17294 -
>> Total Conditioning - 74265 12774 - 17294 0
Key: Positive values are clg loads Positive values are htg loads
Negative values are htg loads Negative values are clg loads
Hourly Analysis Program 5.10 Page 3 of 7
System Psychrometrics for Default System
Project Name: HMT LAB 12/13/2022
Prepared by: KFUEIT 10:25PM
July DESIGN COOLING DAY, 1600
TABLE 1: SYSTEM DATA
Dry-Bulb Specific Sensible Latent
Temp Humidity Airflow CO2 Level Heat Heat
Component Location (°F) (lb/lb) (CFM) (ppm) (BTU/hr) (BTU/hr)
Ventilation Air Inlet 109.4 0.01350 570 400 19957 7642
Vent - Return Mixing Outlet 82.7 0.01118 3054 805 - -
Supply Fan Outlet 82.8 0.01118 3054 805 239 -
Central Cooling Coil Outlet 60.0 0.01029 3054 805 74265 12774
Central Heating Coil Outlet 60.0 0.01029 3054 805 0 -
Cold Supply Duct Outlet 60.0 0.01029 3054 805 - -
Zone Air - 76.6 0.01065 3054 898 54069 5125
Return Plenum Outlet 76.6 0.01065 3054 898 0 -
Air Density x Heat Capacity x Conversion Factor: At sea level = 1.080; At site altitude = 1.069 BTU/(hr-CFM-F)
Air Density x Heat of Vaporization x Conversion Factor: At sea level = 4746.6; At site altitude = 4697.2 BTU/(hr-CFM)
Site Altitude = 289.0 ft
TABLE 2: ZONE DATA
Zone Terminal Zone
Sensible Zone Zone Zone CO2 Heating Heating
Load T-stat Cond Temp Airflow Level Coil Unit
Zone Name (BTU/hr) Mode (BTU/hr) (°F) (CFM) (ppm) (BTU/hr) (BTU/hr)
Zone 1 55231 Cooling 54069 76.6 3054 898 0 0
Hourly Analysis Program 5.10 Page 4 of 7
System Psychrometrics for Default System
Project Name: HMT LAB 12/13/2022
Prepared by: KFUEIT 10:25PM
WINTER DESIGN HEATING
TABLE 1: SYSTEM DATA
Dry-Bulb Specific Sensible Latent
Temp Humidity Airflow CO2 Level Heat Heat
Component Location (°F) (lb/lb) (CFM) (ppm) (BTU/hr) (BTU/hr)
Ventilation Air Inlet 49.0 0.00369 570 400 -12593 0
Vent - Return Mixing Outlet 65.8 0.00369 3054 441 - -
Supply Fan Outlet 65.9 0.00369 3054 441 239 -
Central Cooling Coil Outlet 65.9 0.00369 3054 441 0 0
Central Heating Coil Outlet 71.2 0.00369 3054 441 17294 -
Cold Supply Duct Outlet 71.2 0.00369 3054 441 - -
Zone Air - 69.7 0.00369 3054 451 -4940 0
Return Plenum Outlet 69.7 0.00369 3054 451 0 -
Air Density x Heat Capacity x Conversion Factor: At sea level = 1.080; At site altitude = 1.069 BTU/(hr-CFM-F)
Air Density x Heat of Vaporization x Conversion Factor: At sea level = 4746.6; At site altitude = 4697.2 BTU/(hr-CFM)
Site Altitude = 289.0 ft
TABLE 2: ZONE DATA
Zone Terminal Zone
Sensible Zone Zone Zone CO2 Heating Heating
Load T-stat Cond Temp Airflow Level Coil Unit
Zone Name (BTU/hr) Mode (BTU/hr) (°F) (CFM) (ppm) (BTU/hr) (BTU/hr)
Zone 1 -5860 Heating -4940 69.7 3054 451 0 0
Hourly Analysis Program 5.10 Page 5 of 7
System Psychrometrics for Default System
Project Name: HMT LAB 12/13/2022
Prepared by: KFUEIT 10:25PM
Location: Rahim Yar Khan, Pakistan
Altitude: 289.0 ft.
Data for: July DESIGN COOLING DAY, 1600
0.020
1. Outdoor Air
2. Mixed Air
3. Supply Fan Outlet
4. Central Cooling Coil Outlet 0.018
5. Room Air
0.016
Specific Humidity ( lb/lb )
1 0.014
23 0.012
5
4
0.010
0.008
0.006
0.004
0.002
0.000
30 40 50 60 70 80 90 100 110
Temperature ( °F )
Hourly Analysis Program 5.10 Page 6 of 7
System Psychrometrics for Default System
Project Name: HMT LAB 12/13/2022
Prepared by: KFUEIT 10:25PM
Location: Rahim Yar Khan, Pakistan
Altitude: 289.0 ft.
Data for: WINTER DESIGN HEATING
0.020
1. Outdoor Air
2. Mixed Air
3. Supply Fan Outlet
4. Central Heating Coil Outlet 0.018
5. Room Air
0.016
Specific Humidity ( lb/lb )
0.014
0.012
0.010
0.008
0.006
1 23 5 4
0.004
0.002
0.000
30 40 50 60 70 80 90 100
Temperature ( °F )
Hourly Analysis Program 5.10 Page 7 of 7
