UK shallow ground temperatures for ground coupled heat exchangers
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چکیده
منابع مشابه
Heat Transfer Modeling of the Ground Heat Exchangers for the Ground-Coupled Heat Pump Systems
Ground-coupled heat pump (GCHP) systems have been gaining increasing popularity for space air conditioning in buildings due to their reduced energy and maintenance costs. The efficiency of GCHP systems is inherently higher than that of the traditional options because it utilizes the ground which maintains a relatively stable temperature all the year round as a heat source/sink. Compared with tr...
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The calculation of Ground Heat Exchanger (GHE) performance is very important for predicting the performance and estimating the initial cost of geothermal heat pump systems. In North America it is estimated that on average GHE are oversized by about 10% ~ 30%. A vertical Ground Heat Exchanger (VGHE) is most common because of its smaller environmental influence and land field requirement. This pa...
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this study represents effect of four variables in performance of a heat-pump in two cities of tehran and rasht. a computer program has been developed, simulating a certain heat pump acting in different environments with different refrigerants in heating season. the analysis is based on a homogeneous model. effect of different refrigerants, depth of the buried heat exchangers and moisture conten...
متن کاملImprovement in Modeling of Heat Transfer in Vertical Ground Heat Exchangers
The heat transfer model of vertical ground heat exchangers for ground-source heat pump systems is discussed. An explicit solution of a finite line-source model has been derived to better describe temperature response of boreholes for long time steps, which can be easily incorporated into computer programs for thermal analysis of ground heat exchangers. A quasi-three-dimensional model is also pr...
متن کاملExperiment and Numberical Analysis of the Discontinuous Operation for Ground Heat Exchangers
The development of the ground source heat pump (GSHP) has been limited by its relatively weak capacity of heat transfer, so the GSHP system normally requires large-scale heat exchangers and higher initial capital investment. Nevertheless, its potential for application of earth energy and friendly environmental protection has drawn a great attention from the international societies and a lot of ...
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ژورنال
عنوان ژورنال: Quarterly Journal of Engineering Geology and Hydrogeology
سال: 2015
ISSN: 1470-9236,2041-4803
DOI: 10.1144/qjegh2015-077