Scribd
Upload
136 views1 page

Air System Sizing Summary For Default System

This document provides an air system sizing summary for a default system serving a 1000 square meter space in Chennai, India. Key details include: - The central cooling coil is sized to handle a peak cooling load of 223.4 kW occurring in January, with a resulting supply air temperature of 14.4 degrees Celsius. - The central heating coil is sized for a maximum heating load of 70.2 kW also occurring in January, with supply air leaving at 14.3 degrees Celsius. - The supply fan is sized for a maximum airflow of 19,298 liters per second to deliver the required airflow, requiring a 47.93 brake horsepower motor.

Uploaded by

Keerthi Krishnan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
136 views1 page

Air System Sizing Summary For Default System

This document provides an air system sizing summary for a default system serving a 1000 square meter space in Chennai, India. Key details include: - The central cooling coil is sized to handle a peak cooling load of 223.4 kW occurring in January, with a resulting supply air temperature of 14.4 degrees Celsius. - The central heating coil is sized for a maximum heating load of 70.2 kW also occurring in January, with supply air leaving at 14.3 degrees Celsius. - The supply fan is sized for a maximum airflow of 19,298 liters per second to deliver the required airflow, requiring a 47.93 brake horsepower motor.

Uploaded by

Keerthi Krishnan
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
You are on page 1/ 1

Air System Sizing Summary for Default System

Project Name: sample project 12/30/2014


Prepared by: Mott MacDonald 12:44PM

Air System Information


Air System Name Default System Number of zones 1
Equipment Class CW AHU Floor Area 1000.0 m
Air System Type SZCAV Location Chennai, India

Sizing Calculation Information


Zone and Space Sizing Method:
Zone L/s Sum of space airflow rates Calculation Months Jan to Dec
Space L/s Individual peak space loads Sizing Data Calculated

Central Cooling Coil Sizing Data


Total coil load 223.4 kW Load occurs at Jan 0100
Sensible coil load 220.4 kW OA DB / WB 25.7 / 19.5 C
Coil L/s at Jan 0100 19298 L/s Entering DB / WB 20.8 / 14.5 C
Max block L/s 19298 L/s Leaving DB / WB 11.3 / 10.6 C
Sum of peak zone L/s 19298 L/s Coil ADP 10.0 C
Sensible heat ratio 0.987 Bypass Factor 0.120
m/kW 4.5 Resulting RH 50 %
W/m 223.4 Design supply temp. 14.4 C
Water flow @ 5.6 K rise 9.62 L/s Zone T-stat Check 0 of 1 OK
Max zone temperature deviation 0.1 K

Central Heating Coil Sizing Data


Max coil load 70.2 kW Load occurs at Jan 0900
Coil L/s at Jan 0900 19298 L/s W/m 70.2
Max coil L/s 19298 L/s Ent. DB / Lvg DB 11.3 / 14.3 C
Water flow @ 11.1 K drop N/A

Supply Fan Sizing Data


Actual max L/s 19298 L/s Fan motor BHP 47.93 BHP
Standard L/s 19262 L/s Fan motor kW 35.74 kW
Actual max L/(s-m) 19.30 L/(s-m) Fan static 1000 Pa

Outdoor Ventilation Air Data


Design airflow L/s 0 L/s L/s/person 0.00 L/s/person
L/(s-m) 0.00 L/(s-m)

Hourly Analysis Program v4.50 Page 1 of 1

You might also like