TY - JOUR
T1 - Development and performance of a parsimonious model to estimate temperature in sewer networks
AU - Elías-Maxil, Jorge A.
AU - Hofman, Jan
AU - Wols, Bas
AU - Clemens, Francois
AU - van der Hoek, Jan Peter
AU - Rietveld, Luuk
PY - 2017
Y1 - 2017
N2 - This paper presents a model (inspired in 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 a commercial software used for hydraulic calculations in drainage systems. Given these innovations, we could reduce the number of modelling 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.
AB - This paper presents a model (inspired in 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 a commercial software used for hydraulic calculations in drainage systems. Given these innovations, we could reduce the number of modelling 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.
UR - http://dx.doi.org/10.1080/1573062X.2016.1276811
U2 - 10.1080/1573062X.2016.1276811
DO - 10.1080/1573062X.2016.1276811
M3 - Article
SN - 1573-062X
VL - 14
SP - 829
EP - 838
JO - Urban Water Journal
JF - Urban Water Journal
IS - 8
M1 - NURW 1276811
ER -