Geothermal energy: sustainable heating and cooling using the - download pdf or read online

By Marc A. Rosen, Seama Koohi-Fayegh

Comprehensively covers geothermal strength platforms that make the most of flooring strength at the side of warmth pumps to supply sustainable heating and cooling

The booklet describes geothermal power structures that make the most of floor strength along side warmth pumps and comparable applied sciences to supply heating and cooling. additionally mentioned are tips on how to version and investigate such structures, in addition to skill to figure out power environmental affects of geothermal power structures and their thermal interplay. The booklet offers the main up to date info within the region. It presents fabric on a number of subject matters, from thermodynamic thoughts to extra complicated discussions of the renewability and sustainability of geothermal strength structures. a number of functions of such platforms also are provided.

Geothermal power: Sustainable Heating and Cooling utilizing the floor takes a study oriented method of offer assurance of the state-of-the-art and rising traits, and contains a number of illustrative examples and case stories. thought and research are emphasised all through, with special descriptions of versions to be had for vertical and horizontal geothermal warmth exchangers.

Key features:

  • Explains geothermal power structures that make the most of flooring strength along with warmth pumps to supply heating and cooling, in addition to comparable applied sciences equivalent to thermal power storage.
  • Describes and discusses the way to version and research geothermal power platforms, and to figure out their power environmental affects and thermal interactions.
  • Covers a variety of purposes of geothermal power systems.
  • Takes a examine oriented method of offer assurance of the cutting-edge and rising trends.
  • Includes various illustrative examples and case studies.

The booklet is essential for researchers and practitioners operating in geothermal strength, in addition to graduate and complex undergraduate scholars in departments of mechanical, civil, chemical, power, environmental, technique and business engineering.

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Convective heat transfer coefficients vary greatly for laminar and turbulent flows. For better understanding, some details on forced convection are instructive. Forced convection provides much higher rates of heat transfer than natural convection, and is highly sensitive to heat transfer coefficient values. For a laminar boundary layer, fluid motion is highly ordered and smooth, while fluid motion is irregular and fluctuating in a turbulent boundary layer. Fluctuations enhance the heat transfer, but also increase surface friction.

The Bernoulli equation for incompressible flow is sometimes referred to as a mechanical-energy equation because of the similarity between it and the steady-flow energy equation derived from the first law of thermodynamics for an inviscid fluid with no heat transfer or external work. Note that for inviscid fluids the viscous forces and surface tension forces are not accounted for, so it is only valid when viscous effects are negligibly small. 50) where u2 ∕2g represents the kinetic energy per unit mass (or the velocity head), p∕????g denotes the pressure energy per unit mass (or the pressure head), z denotes the potential energy per unit mass (or the potential head or constant total head), H denotes the total energy per unit mass (or the total head), and subscripts 1 and 2 denote points along the streamline.

Refining, production of industrial gases). Exergy analysis is particularly useful for determining meaningful efficiencies and thermodynamic losses. Specifically, exergy analysis provides efficiencies that are true measures of how nearly efficiency approaches the ideal or upper limit, and pinpoints the locations, types, and magnitudes of losses (inefficiencies). Thus, exergy analysis enhances understanding of these quantities and greatly assists efforts to improve the efficiency with which we use energy resources.

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