Temperature Decay in Pex Pipes for Hot Water Conduction
DOI:
https://doi.org/10.46421/sispred.v2i.855Keywords:
Temperature, Pipe, PEXAbstract
ABSTRACT: Reticulated Polyethylene (PEX) is a flexible material used in the civil construction market in building systems of hot and cold water, and like other materials, when conducting hot water, lose temperature between the start point and the end point of an analyzed section, causing loss of energy in the form of heat to environment. This article aims to verify the behavior of temperature decay in hot water PEX pipes of different diameters and provide this information to fact sheets and designers, for this, iterative and simulation methods will be adopted. Using the simulation software as a parameter, it was obtained that the DN16 lost 0.32°C, DN20 0.17°C, DN25 0.11°C and DN32 0.07°C of temperature in a stretch of 1 m of length. Thus, it is possible to know the temperature decay at certain distances, a factor that helps the designer in choosing the size of the pipe to be projected according to the diameter, for a fixed flow.
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