Abstract
The thermal conditions in a two person office room were measured with four air
conditioning systems: chilled beam (CB), chilled beam with radiant panel (CBR),
chilled ceiling with ceiling installed mixing ventilation (CCMV) and four desk
partition mounted local radiant cooling panels with mixing ventilation (MVRC). CB
was based on convection cooling while the remaining three systems (CBR, CCMV
and MVRC) on combined radiant and convective cooling. Measurements were
performed in design (64 W/m2) and usual (38 W/m2) cooling conditions. Air
temperature, operative temperature, radiant asymmetry, air velocity and turbulent
intensity were measured and draft rate levels calculated in the room. Manikin-based
equivalent temperature (MBET) was determined by two thermal manikins to identify
the impact of the local thermal conditions generated by the studied systems on
occupants’ thermal comfort. The results revealed that the differences in thermal
conditions between the four systems were not significant. This result was contrary to
the expectation that operative temperature would be lower in the CCMV case. The
velocity levels in the occupied zone were slightly higher in both CB and CBR cases.
However the highest measured values were located outside the workstations.
Original language | English |
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Title of host publication | Proceedings of 11th REHVA World Congress and the 8th International Conference on Indoor Air Quality, Ventilation and Energy Conservation in Buildings |
Number of pages | 10 |
Publication date | 2013 |
Article number | Paper ID: 319 |
Publication status | Published - 2013 |
Event | Clima 2013: 11th REHVA World Congress & 8th International Conference on IAQVEC - Prague Congress Centre, Prague, Czech Republic Duration: 16 Jun 2013 → 19 Jun 2013 Conference number: 11 http://www.clima2013.org/ |
Conference
Conference | Clima 2013 |
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Number | 11 |
Location | Prague Congress Centre |
Country/Territory | Czech Republic |
City | Prague |
Period | 16/06/2013 → 19/06/2013 |
Internet address |