Abstract
This project involves enhancement of the HWSIM distribution system model to more accurately model pipe heat transfer. Recent laboratory testing efforts have indicated that the modeling of radiant heat transfer effects is needed to accurately characterize piping heat loss. An analytical methodology for integrating radiant heat transfer was implemented with HWSIM. Laboratory test data collected inanother project was then used to validate the model for a variety of uninsulated and insulated pipe cases (copper, PEX, and CPVC). Results appear favorable, with typical deviations from lab results less than 8%.
Original language | American English |
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Publisher | National Renewable Energy Laboratory (NREL) |
Number of pages | 20 |
State | Published - 2012 |
Bibliographical note
Work performed by Alliance for Residential Building Innovation (ARBI), Davis, CaliforniaNREL Publication Number
- NREL/SR-5500-55203
Other Report Number
- DOE/GO-102012-3626
Keywords
- Alliance for Residential Building Innovation
- arbi
- Building America
- heat transfer modeling
- hot water distribution systems
- residential
- residential buildings
- simulation models
- validation