Print Email Facebook Twitter Development and performance of a parsimonious model to estimate temperature in sewer networks Title Development and performance of a parsimonious model to estimate temperature in sewer networks Author Elias Maxil, J.A. (TU Delft Sanitary Engineering) Hofman, J.A.M.H. (KWR Water Research Institute; University of Bath) Wols, B.A. (KWR Water Research Institute) Clemens, F.H.L.R. (TU Delft Sanitary Engineering; Deltares) van der Hoek, J.P. (TU Delft Sanitary Engineering; Waternet) Rietveld, L.C. (TU Delft Sanitary Engineering) Date 2017 Abstract This paper presents a model (inspired by another model) to calculate water temperature in free-surface flow with two main innovations: the convective heat transfer occurs only at the wetted perimeter of pipes, and the model was integrated to commercial software used for hydraulic calculations in drainage systems. Given these innovations, we could reduce the number of modeling input data to calculate the temperature of water and soil in the radial and tangential directions along the pipes, with the advantages of using industry-standard software. To test the performance of the model, it was firstly calibrated in two sets of experiments (to calibrate the hydraulic and the thermal parameters separately), and benchmarked with a third controlled discharge against the case model. The results indicate that in unsteady-state situations the parsimonious model can be twice as accurate as the underlying model because the parsimonious model considers the hydraulic influence of sewer infrastructure. Subject Heat recoverywastewatertemperature modelingheat transfer To reference this document use: http://resolver.tudelft.nl/uuid:5338df59-a451-4e9b-a5ec-61ccc2575630 DOI https://doi.org/10.1080/1573062X.2016.1276811 ISSN 1573-062X Source Urban Water Journal, 14 (8), 829–838 Part of collection Institutional Repository Document type journal article Rights © 2017 J.A. Elias Maxil, J.A.M.H. Hofman, B.A. Wols, F.H.L.R. Clemens, J.P. van der Hoek, L.C. Rietveld Files PDF 1573062X.2016.1276811.pdf 2.42 MB Close viewer /islandora/object/uuid:5338df59-a451-4e9b-a5ec-61ccc2575630/datastream/OBJ/view