In an open-loop system, groundwater is circulated between two or more groundwater wells, and energy is extracted from the flowing water by a heat transfer system (Bonte et al. [2011]; Haehlein et al. [2010]).
The new initiative uses a closed air-cycle type system, in which air is circulated in the unit by natural draft, between the humidifier and the condenser.
The movement known as Institutional Critique, which obsessively parses the system by which art is circulated and consumed and has been, paradoxically, much favored by museum curators, is only the most conspicuous instance of this blinkered view of real, multidimensional life in the world at large.
For their electric vehicles, Tesla Motors, General Motors, and Ford all have more sophisticated and expensive active thermal management systems, where a liquid is circulated around batteries to keep them close to their optimal performance temperature.
A conceptual Enhanced Geothermal System (EGS) model, where water is circulated through a pair of parallel injection and production wells connected by a set of single large wing fractures, is designed, modeled, and evaluated in this work.
When electricity is needed, the salt is circulated through a system where it produces steam, which drives a turbine.
(Some helicopters use a "no tail rotor" system, in which low-pressure air is circulated through a tail boom to control the torque of the spinning main rotor).
A dual-reactor system in which the liquid catalyst is circulated between two reactors, each held at a different temperature and with different feed composition, is shown to be better than any single reactor configuration in an important range of SO2 conversion.
