CFD Simulations for Thermal Comfort and Energy Saving

You Cheng Lu, Chia Wei Chen, Xuan Jie Gong, Kan Rong Lee, Chung Jen Tseng

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

Abstract

Energy conservation in buildings open doors for innovative techniques for thermal comfort. Recently, Simulation of smart building energy management (SBEM) has gained attention for energy conservation and efficient utilization in buildings. In this study, we proposed a conceptual framework to achieve thermal comfort inside a low-energy smart building (LESB) with real-time environmental conditions by computational fluid dynamics (CFD) simulation. CFD simulations are performed in natural ventilation mode at five different time periods to understand the climatic conditions inside the LESB in summer solstice. Heat energy entering the room at noon is effectively blocked by a special air layer of the roof. In summer, comfort inside the LESB is limited in natural ventilation mode. So, the indoor thermal comfort can be maintained with air conditioners (AC). In this study, predicted mean vote (PMV) is adopted to predict the thermal comfort with different AC position inside the LESB for energy conservation. AC installation away from the center of the wall avoids short circulation and the air flows to farther distance. The farther air flow helps to maintain uniform temperature inside room. This work helps in understanding the parameters to be considered in designing an LESB with good thermal comfort.

Original languageEnglish
Title of host publicationProceedings - 22nd IEEE/ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing, SNPD 2021-Fall
EditorsHer-Terng Yau, Roland Stenzel, Mei-Ling Shyu, Hsiung-Cheng Lin
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages167-170
Number of pages4
ISBN (Electronic)9781665404037
DOIs
StatePublished - 2021
Event22nd IEEE/ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing, SNPD 2021-Fall - Virtual, Taichung, Taiwan
Duration: 24 Nov 202126 Nov 2021

Publication series

NameProceedings - 22nd IEEE/ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing, SNPD 2021-Fall

Conference

Conference22nd IEEE/ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing, SNPD 2021-Fall
Country/TerritoryTaiwan
CityVirtual, Taichung
Period24/11/2126/11/21

Keywords

  • ANSYS-Fluent
  • CFD
  • energy conservation
  • low energy building
  • Thermal comfort

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