English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Optimal duct design of a HVAC system requires analysis technology to accurately evaluate its pressure losses, flow rate and velocity for making a compromised design among fan capacity and duct size affecting initial manufacturin g and operation costs, and noise induced by the HVAC system.In this paper, we carry out initial duct design using the equal friction method. Using the result, the T-method is applied for accurate analysis of flow r ate. Then, the duct size is modified using the difference between the required and the calc ulated flow rate, which can guarantee required flow rate, reduce the pressure unbalance amo ng duct paths and lead to select optimal fan performance. To verify the validity and effectiveness of the proposed design method, an example for HVAC system design including nois e analysis is demonstrated. ※Keywords: HVAC( ), Duct design( ), Equal friction method(), T-method(T-), Pressure loss(), Noise() : 2009 3 4, : 2009 6 23✝: daecho@pusan.ac.kr, 051-510-2482

A Study on the Duct Design of HVAC System Using the Equal Friction Method and the T-method