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Performance evaluation of standing column well for potential application of ground source heat pump in Jordan

机译：立式井的性能评估对约旦地源热泵的潜在应用

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Numerical simulation of the heat and fluid flows for the standing column well (SCW) and porous medium around the borehole of the ground source heat pump has been investigated. The finite difference technique was used. Parametric study for several variables has been developed. For example, different bleed ratios of 0.10, 0.20 and 0.30 and far-away temperatures ranging from 15 ℃ to 60 ℃ were investigated. An increase in bleed ratio and the far-away temperature will increase the outlet water temperature from the SCW, retiming back to the heat pump. The effect of porosity, ranging from 0.05 to 0.275, was also considered. Increasing porosity decreases the water outlet temperature. Similarly, the effects of Nusselt and Reynolds numbers in the ranges of 15-500 and 1000-11,000, respectively are reported in this paper. Nusselt and Reynolds numbers decrease with the water outlet temperature. The SCW can be employed as a good ground heat exchanger in a geothermal assisted heat pump system. A polynomial correlation of Nusselt number in terms of Reynolds number has been developed.
机译：研究了立式井（SCW）和地源热泵井眼周围的多孔介质的热和流体流动的数值模拟。使用了有限差分技术。已经开发了几个变量的参数研究。例如，研究了0.10、0.20和0.30的不同排放比以及15℃至60℃的遥远温度。排放比的增加和温度的升高将增加SCW的出水温度，重新回到热泵。还考虑了孔隙率的影响，范围从0.05到0.275。孔隙率的增加会降低出水温度。同样，本文还报道了Nusselt和Reynolds数分别在15-500和1000-11,000之间的影响。 Nusselt和Reynolds数随出水温度降低。 SCW可以用作地热辅助热泵系统中的良好地面热交换器。已经开发出根据雷诺数的努塞尔数的多项式相关性。

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