Duct Sizing Charts & Tables

Carrier Air-Conditioning Manual(1960-?)



TABLE 6 - CIRCULAR EQUIVALENT DIAMETER,* EQUIVALENT AREA AND DUCT CLASS OF RECTANGULAR DUCTS FOR EQUAL FRICTION

TABLE 6 - CIRCULAR EQUIVALENT DIAMETER,* EQUIVALENT AREA AND DUCT CLASS OF RECTANGULAR DUCTS FOR EQUAL FRICTION (Cont.)

TABLE 6 - CIRCULAR EQUIVALENT DIAMETER,* EQUIVALENT AREA AND DUCT CLASS OF RECTANGULAR DUCTS FOR EQUAL FRICTION (Cont.)

FRICTION LOSS FOR ROUND DUCT

About the Author

Varkie Thomas
Varkie C. Thomas, Ph.D., P.E. Research Professor College of Architecture Illinois Institute of Technology Chicago, Illinois, USA

Varkie Thomas taught graduate courses in Energy Efficient Building Design, Building Energy Performance Analysis and advised doctoral candidates (1996-2008) as an Adjunct Professor at Illinois Institute of Technology (IIT) from SOM. He is currently a Research Professor with the Ph.D. program at IIT. He was a member of the UN Technical Program to China in 1991 and a Visiting Professor from Purdue in Malaysia in 1996/97 funded by the World Bank.

Academic: B.Sc. (Honors) in Mathematics from St. Xavier’s College Bombay University; Post-Graduate Diploma in Environmental Engineering from London South Bank University; Post-Graduate Diploma (with Distinction) and Ph.D. in Industrial Management from Strathclyde University Glasgow. Registered Professional Engineer (P.E.) and Certified Energy Manager (CEM - Association. of Energy Engineers).