Greenhouse window U-factors under field conditions [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 1997.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- 15 pages : digital, PDF file
- Additional Creators:
- United States. Department of Energy and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Field measurements of U-factor are reported for two projecting greenhouse windows, each paired with a picture window of comparable insulation level during testing. A well-known calorimetric field test facility was used to make the measurements. The time-varying U-factors obtained are related to measurements of exterior conditions. For one of the greenhouse windows, which was the subject of a published laboratory hotbox test and simulation study, the results are compared with published test and simulation data and found to be in disagreement. Data on interior and exterior film coefficients are presented, and it is shown that the greenhouse window has a significantly lower interior film coefficient than a conventional window under the same interior conditions. This is advanced as a possible explanation of the disagreement.
- Report Numbers:
- E 1.99:lbnl--40448
E 1.99: da--374
- Other Subject(s):
- Published through SciTech Connect.
1998 ASHRAE winter meeting, San Francisco, CA (United States), 17-21 Jan 1998.
Lawrence Berkeley National Lab., Environmental Energy Technologies Div., Berkeley, CA (United States)
- Funding Information:
View MARC record | catkey: 14074160