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Performance analysis of an integrated UFAD and radiant hydronic slab system
- Source :
-
Applied Energy . Feb2012, Vol. 90 Issue 1, p250-257. 8p. - Publication Year :
- 2012
-
Abstract
- Abstract: In this paper, an EnergyPlus model was used to simulate the operation of a novel integrated HVAC system. This system combines an underfloor air distribution system with a cooled radiant ceiling slab. A cooling tower supplies water to pre-cool the structural slabs during the night and early morning period. The paper compares the performance of this system to both a typical overhead system and a typical UFAD system in the cooling season for the Sacramento, California climate. When compared to the overhead system, the integrated UFAD/Radiant system shows a 22–23% reduction in total energy consumption during the peak cooling months (June to August) and a 31% reduction in peak hourly electricity demand. When compared to the UFAD system, these reductions are 21–22% and 24% respectively. An investigation of the simulation results showed that the integrated UFAD/Radiant system also improves occupant thermal comfort and reduces thermal decay issues in the underfloor plenum. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 03062619
- Volume :
- 90
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Applied Energy
- Publication Type :
- Academic Journal
- Accession number :
- 66946804
- Full Text :
- https://doi.org/10.1016/j.apenergy.2011.02.014