HomeMy WebLinkAboutFile Documents.COACH RD.0079.2018 (16).ARBKAir System Sizing Summary for ADU
Project Name: 18003-DBX 7 03/27/2018
Prepared by: RADER ENGINEERING INC.01:39PM
Air System Information
Air System Name ADU
Equipment Class UNDEF
Air System Type SZCAV
Number of zones 1
Floor Area 833.0 ft²
Location Eagle, Colorado
Sizing Calculation Information
Calculation Months Jan to Dec
Sizing Data Calculated
Zone CFM Sizing Sum of space airflow rates
Space CFM Sizing Individual peak space loads
Central Cooling Coil Sizing Data
Total coil load 2.4 Tons
Total coil load 28.4 MBH
Sensible coil load 27.3 MBH
Coil CFM at Sep 1400 1614 CFM
Max block CFM 1614 CFM
Sum of peak zone CFM 1614 CFM
Sensible heat ratio 0.961
CFM/Ton 682.7
ft²/Ton 352.2
BTU/(hr·ft²)34.1
Water flow @ 10.0 °F rise 5.68 gpm
Load occurs at Sep 1400
OA DB / WB 82.9 / 61.7 °F
Entering DB / WB 73.1 / 58.1 °F
Leaving DB / WB 52.2 / 50.8 °F
Coil ADP 49.9 °F
Bypass Factor 0.100
Resulting RH 45 %
Design supply temp.50.0 °F
Zone T-stat Check 1 of 1 OK
Max zone temperature deviation 0.0 °F
Central Heating Coil Sizing Data
Max coil load 29.5 MBH
Coil CFM at Des Htg 1614 CFM
Max coil CFM 1614 CFM
Water flow @ 20.0 °F drop 2.95 gpm
Load occurs at Des Htg
BTU/(hr·ft²)35.4
Ent. DB / Lvg DB 68.9 / 91.5 °F
Humidifier Sizing Data
Max steam flow at Des Htg 0.92 lb/hr
Airflow Rate 1614 CFM
Air mass flow 5437.68 lb/hr
Moisture gain .00017 lb/lb
Supply Fan Sizing Data
Actual max CFM 1614 CFM
Standard CFM 1208 CFM
Actual max CFM/ft²1.94 CFM/ft²
Fan motor BHP 0.33 BHP
Fan motor kW 0.26 kW
Fan static 0.75 in wg
Outdoor Ventilation Air Data
Design airflow CFM 0 CFM
CFM/ft²0.00 CFM/ft²
CFM/person 0.00 CFM/person
Hourly Analysis Program 5.11 Page 1 of 2
3/30/18
4/5/2018
Zone Sizing Summary for ADU
Project Name: 18003-DBX 7 03/27/2018
Prepared by: RADER ENGINEERING INC.01:39PM
Air System Information
Air System Name ADU
Equipment Class UNDEF
Air System Type SZCAV
Number of zones 1
Floor Area 833.0 ft²
Location Eagle, Colorado
Sizing Calculation Information
Calculation Months Jan to Dec
Sizing Data Calculated
Zone CFM Sizing Sum of space airflow rates
Space CFM Sizing Individual peak space loads
Zone Terminal Sizing Data
Zone Name
Design
Supply
Airflow
(CFM)
Minimum
Supply
Airflow
(CFM)
Zone
CFM/ft²
Reheat
Coil
Load
(MBH)
Reheat
Coil
Water
gpm
@ 20.0 °F
Zone
Htg Unit
Coil
Load
(MBH)
Zone
Htg Unit
Water
gpm
@ 20.0 °F
Mixing
Box Fan
Airflow
(CFM)
ADU 1614 1614 1.94 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)
ADU 27.7 Sep 1500 30.8 833.0
Space Loads and Airflows
Zone Name /
Space Name Mult.
Cooling
Sensible
(MBH)
Time of
Peak
Sensible
Load
Air
Flow
(CFM)
Heating
Load
(MBH)
Floor
Area
(ft²)
Space
CFM/ft²
ADU
A-10 Entry & Living 1 23.6 Sep 1500 1329 25.7 509.0 2.61
A-13 Storage 1 0.3 Jul 1700 19 0.4 34.0 0.55
A-14 Hall 1 1.2 Jul 1500 69 0.3 40.0 1.72
A-15 Bedroom 1 1.8 Jul 1700 104 2.5 154.0 0.68
A-16 WIC 1 0.4 Jul 1500 39 0.9 30.0 1.29
A-17 Bath 1 1.0 Jul 1500 55 1.0 66.0 0.83
Hourly Analysis Program 5.11 Page 2 of 2
4/5/2018