The Flow of Hot Water from a Distant Hot-Water Tank

When turning on a hot-water faucet, there is an expected delay in the arrival of the hot water because the cold water in the pipe between the hot-water tank and the faucet must first run out. However, there is an additional delay caused by the cold pipe cooling the incoming hot water. This note anal...

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Veröffentlicht in:SIAM review 1994-09, Vol.36 (3), p.474-479
Hauptverfasser: Seliktar, Miriam, Rorres, Chris
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description When turning on a hot-water faucet, there is an expected delay in the arrival of the hot water because the cold water in the pipe between the hot-water tank and the faucet must first run out. However, there is an additional delay caused by the cold pipe cooling the incoming hot water. This note analyzes this phenomenon, with specific emphasis on how the thermal coupling between the pipe and the fluid influences the additional delay.
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source JSTOR Mathematics & Statistics; JSTOR Archive Collection A-Z Listing; LOCUS - SIAM's Online Journal Archive
subjects Ambient temperature
Approximations and expansions
Classroom Notes
Convection and heat transfer
Exact sciences and technology
Faucets
Flow velocity
Flows in ducts, channels, nozzles, and conduits
Fluid dynamics
Fundamental areas of phenomenology (including applications)
Heat
Inlet temperature
Mathematical analysis
Mathematics
Partial differential equations
Physics
Plumbing
Sciences and techniques of general use
Tap water
Turbulent flows, convection, and heat transfer
Water
Water conservation
Water pollution
Water tanks
Water temperature
title The Flow of Hot Water from a Distant Hot-Water Tank
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