U-Factor Rating of Domed Skylights-Project
Monitoring Task Group
CHAIR'S
CONTACT INFORMATION
SCOPE
The objectives of this
project are to develop methods and procedures to simulate and
validate domed
skylights for their nighttime thermal performance. It is believed
that two areas are especially
affected, 1) convective heat transfer inside the irregularly shaped
dome cavity or cavities, depending
on the number of glazing layers, and 2) indoor surface convective
heat transfer, occurring on theglazing and frame surfaces. Due
to implementation of detailed radiation model in THERM, this aspect
of heat transfer does not need to be further investigated at this
time. Further developments in 3-D heat transfer modeling procedures
may necessitate re-opening of this issue, but for now it is assumed
that 2-D radiation heat transfer has been fully accounted for.
The simulation methodology will need to include vertical orientation
and 20° slopes for both cavity and indoor surfaces convective
heat transfer. Correlations shall be developed that account for
different environmental conditions, width and height of the domed
skylights and ratio of highest to lowest width of the cavity.
Status
- At the Spring 08 Membership Meeitng, the Board approved final
payment. This project is now complete.
- University of MA turned in the final report on January 15,
2008. This TG is reviewing the work.
Contract
Meeting Minutes
None
available.
Documents
Task Group Participants
- Dave DeBlock
(chair)
- Sue Rielly
- John Lawton
- Raj Goyal
- Brad Schultz
- Ray McGowan
(staff)
This task group reports
to:
.
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