Ground Source Heat Pumps (GSHP) are economically and environmentally advantageous for the heating and cooling of buildings, provided that the long-term sustainability of the thermal exploitation of the soil is ensured. In particular, the performance of a closed-loop Borehole Heat Exchanger (BHE) strongly depends on the geometrical and physical properties of its components and on the thermo-hydr...

0022-1694/$ see front matter 2012 Elsevier B.V. A http://dx.doi.org/10.1016/j.jhydrol.2012.09.048 ⇑ Corresponding author. Tel.: +86 2768775432; fax E-mail address: [email protected] (J. Yang). It is a long-lasting challenge in subsurface hydrologic modeling to develop numerically efficient algorithm for coupling unsaturated and saturated flow, especially in regional-scale modeling. In this stud...

Groundwater (GW) flooding mechanisms differ from river flooding, both spatially and temporally, preventative methods against groundwater must take this into account. Although caused by a rise of water seldom occurs, it can occasionally become severe last for long time if the is significantly flooded. In southwest portion research domain, Friedrichshafen, Germany, with few urban communities, lev...

Shallow geothermal systems (SGSs) for building climatization represent an advantageous alternative to traditional air-conditioning systems, resulting in economic and environmental benefits. Installation of these requires knowledge site-specific geological hydrogeological conditions, which feasibility studies are often evaluated only at the single plant scale, lacking a comprehensive view riskin...

Abstract Leakages from buried water pipes can result in suffosion posing a threat to the environment and infrastructure existing cities. Leakage of pressure pipe into soil susceptible is very complex phenomenon, characterized by number different parameters. Taking account all parameters empirical tests leakage practically impossible. Thus, it necessary select them so that on one hand possible p...

Heat transfer within the soil is a complex process in presence of seepage flow. In such conditions, soil’s thermal behavior influenced by and hydraulic properties medium as well initial conditions boundary to which subjected. This paper presents experimental numerical studies heat sand subjected It focuses on influence saturated conductivity porosity process. The temperature distribution was mo...

Abstract In informal landfills, leachate leaked into the underlying soil and groundwater has been gaining increasing attention. Recently, an low-permeability landfill site in northern China was investigated detail, it found that contaminated by leachate. A flow contamination transport model developed using FEFLOW to forecast contaminant evaluate feasible pollutant control schemes. this model, g...

In this paper, field hydrological monitoring tests and an analytical solution for the aquifer response (i.e., groundwater head) to stream-stage fluctuations are presented through a case study of Yangtze River in Wuhan, China. A sinusoidal equation stream water level over time is proposed verified by results. Based on classical 1-D ground flow equations, new model was analyze confined fluctuatio...

A coupled framework, linking subsurface flow and surface hydrodynamics, is developed applied to a real-world case study of Pingtung coastal aquifer in southwest Taiwan, East Asia. FEFLOW adopted develop 3-D variable density transient groundwater model the shallow lying 250 m below mean sea level (MSL). This with 1-D river network model, comprised main its two tributaries, using MIKE 11 through ...