Effect of floor distance on velocity profile in a vertical ducting systems: CFD modelling

M. Iqbal Abdi Tanjung, Ridho Irwansyah, Christian K. Bach, Ardiyansyah Yatim

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Consideration of energy consumption and its impact on the environment has been driving the heating, ventilating, and air conditioning (HVAC) industry to develop and test more energy-efficient units. The Air Handling Unit (AHU) is one of the important components of the HVAC system that has undergone a lot of improvements in terms of energy efficiency through increased coil surface area, thus its unit size. Variation of AHU models requires energy performance testing and rating standard which is currently guided by ASHRAE Standard 37. The standard provides a limited guideline on the distance between the floor and the inlet duct length of the vertical AHU units which, although giving flexibility during testing, can lead to the variation of testing results of the same unit. This study uses a computational approach and experiment result to examine the effect of floor distance on the air velocity profile and fan power of a vertical ducting arrangement for an AHU unit. The unit geometry specification is obtained from the experimental campaign at Oklahoma State University, USA as part of ASHRAE research project. The results indicate that for all cases the air velocity 1 m downstream the opening is well distributed. The experiment also shows that different floor distances do not have a big influence on fan power.

Original languageEnglish
Title of host publicationInternational Conference on Science and Applied Science, ICSAS 2020
EditorsBudi Purnama, Dewanta Arya Nugraha, Fuad Anwar
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735440302
DOIs
Publication statusPublished - 16 Nov 2020
Event2020 International Conference on Science and Applied Science, ICSAS 2020 - Surakarta, Indonesia
Duration: 7 Jul 2020 → …

Publication series

NameAIP Conference Proceedings
Volume2296
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference2020 International Conference on Science and Applied Science, ICSAS 2020
Country/TerritoryIndonesia
CitySurakarta
Period7/07/20 → …

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