Energy capture using urban surface water: Modelling and in-situ measurements

For engineering applications one-dimensional models of urban ponds are suitable in order to assess the energy potential for heating and cooling of buildings. This paper presents an intercomparison of two of such models, together with in-situ measurements. Water temperatures are presented for a period of 13 diurnal cycles, as well as an inter-comparison between the heat fluxes of the two models. Stratification effects are shown by the Richardson numbers. Both models are applicable for assessment of the energy capture potential, despite different models for the heat fluxes. These conclusions are derived for discharge  temperatures which deviate up to 2.5 °C from the pond temperature (pond depth = 0.4 m).