Document Type : Original Article
Authors
1
Mechanical Power Engineering Department, Faculty of Engineering at El-Mattaria, Helwan University,
2
Department of Civil and Environmental Engineering, NTNU Norwegian University of Science and Technology
3
Mechanical Power Engineering Department, Faculty of Engineering at El-Mattaria, Helwan University
4
Mechanical Power Engineering Department, Faculty of Engineering at El-Mattaria, Helwan University Mechanical Engineering Department, College of Engineering and Technology-Smart Village Campus, Arab Academy for Science, Technology and Maritime Transport
Abstract
In hot and humid climates, this paper describes a study to estimate the energy savings
potential of a radiant system using simulation analysis. The medium size office buildings in
Egypt used as a case study. To evaluate the thermal performance and energy consumption,
the simulations were carried out using the IDA ICE software.
This paper addresses the compatibility between radiant cooling systems and the climates
in the buildings mainly through the issue of condensation risk. The risk of condensation can
be reduced, by dehumidifying the supply air in different cases. Five heating, ventilation, and
air-conditioning (HVAC) systems namely: direct expansion Split Units (DX-SU),
Displacement Ventilation (DV), Chilled Ceiling with Displacement Ventilation (CC-DV),
Radiant Floor with Displacement Ventilation (FR-DV) and Radiant Wall with Displacement
Ventilation (WR-DV) are simulated.
All simulations were performed for the whole year. However, two separate weeks in
winter and summer are selected to investigate the thermal performance in addition of the
energy consumption. The results showed that (RW-DV) system achieves 14.36% and
24.03% total energy saving from the base system (DX-SU) for the winter and summer
seasons, respectively. While the DV system achieves 1.6% and 12% total energy saving from
the base system (DX-SU) for the winter and summer seasons, respectively.
Keywords
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