Sökresultat

Filtyp

Din sökning på "*" gav 534747 sökträffar

Natural convection in groundwater-filled boreholes used as ground heat exchangers

In most of the world, borehole heat exchangers used with closed-loop ground source heat pump systems are backfilled with a low permeability grout to prevent water contamination. However, in Scandinavian countries, a different approach is taken – the borehole is sealed at the top and cased down to solid bedrock. The borehole then naturally fills with groundwater in the annular space between the U-t

Heat transfer in a borehole heat exchanger: Frequency domain modeling

This paper proposes a new frequency domain method to model the heat transfer between the injected/extracted heat and the temperature of the fluid exiting a borehole heat exchanger. The method is based on in situ measurements and focuses particularly on the short-term borehole heat transfer. It uses a rational function of the Warburg variable in the Laplace domain to model the borehole heat transfe

Doing loyalty: subtle dramas in emotional courtrooms

The courtroom work of defence lawyers has received surprisingly little sociological attention leading to the question: how do defence lawyers represent their client beyond the hard paragraphs of the law? By studying this phenomenon in a context where the scope for expressive gestures is limited, it is possible to gain a greater understanding into the often subtle ways in which legal teamwork is pe