Full-Scale Demonstration of Combined Ground Source Heating and Sustainable Urban Drainage in Roadbeds

This paper proposes and demonstrates, in full scale, a novel type of energy geostructure (“the Climate Road”) that combines ground-source heat pump (GSHP) with sustainable urban drainage system (SUDS) by utilizing the gravel roadbed simultaneously as an source rainwater retarding basin. The Road measures 50 m × 8 1 (length, width, depth, respectively) has 800 geothermal piping embedded roadbed, serving collector for GSHP supplies nearby kindergarten domestic hot water space heating. Model analysis operational data from 2018–2021 indicates annual production levels around 0.6 MWh per meter road, COP 2.9–3.1. continued infiltration into increases amount extractable estimated 17% compared to case zero infiltration. Using developed model scenario analysis, we find draining three single-family houses storing 30% heating consumption predicted 56% no seasonal storage. is capable supplying new heating, cooling, management year-round.