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

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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 ... continued below

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Blackstone, R. January 25, 1996.

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Description

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.

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  • Report No.: BABBAF000-01717-0200-00155 REV 01
  • Grant Number: NA
  • DOI: 10.2172/862349 | External Link
  • Office of Scientific & Technical Information Report Number: 862349
  • Archival Resource Key: ark:/67531/metadc792875

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  • January 25, 1996

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  • Dec. 19, 2015, 7:14 p.m.

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  • Nov. 30, 2016, 1:12 p.m.

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Blackstone, R. NORTH PORTAL - HOT WATER CALCULATION - CHANGE HOUSE FACILITY #5008, report, January 25, 1996; Oak Ridge, Tennessee. (digital.library.unt.edu/ark:/67531/metadc792875/: accessed January 22, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.