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Title: NORTH PORTAL - HOT WATER CALCULATION - CHANGE HOUSE FACILITY #5008

Technical Report ·
DOI:https://doi.org/10.2172/862349· OSTI ID:862349

The purpose of this design analysis and calculation is to determine the demand for hot water and to size the supply main piping for the Change House Facility No.5008 in accordance with the Uniform Plumbing Code (UPC) (Section 4.4.1) and U.S. Department of Energy Order 6430.1A-1540. The method used for the calculations is based on Section 4.4.1. The first step is to determine the maximum pressure drop between the most remote plumbing fixture and the main supply. The pressure drop for the hot water system is based on the total length of the supply piping from the cold water supply source through the water heater to the most remote hot water outlet. Equivalent fixture units are then assigned using Section 4.4.1. For hot water, the values are reduced by 25 percent in accordance with the UPC. The demand load in gpm is then determined based on the number of fixture units. The demand load and the pressure drop between the source and the most remote fixture is used to determine the pipe size and the corresponding friction losses for a given flow velocity not to exceed 10 feet/second.

Research Organization:
Office of Scientific and Technical Information (OSTI), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
NA
OSTI ID:
862349
Report Number(s):
BABBAF000-01717-0200-00155 REV 01; MOL.19960716.0207 DC#27197; TRN: US0600913
Country of Publication:
United States
Language:
English