The correct design of a borehole heat exchanger (BHE) system implies the accurate knowledge properties, the correct evaluation of building heating or cooling demands and the correct length related to BHE configuration shape. A careful design is required to make profitable time performance. In this paper the principle and description of a web-based suite of tools for BHE design is implement some of the main procedures universally adopted in BHE system design. A implementation of an improved ASHRAE method which allows the BHE system to be designed building heat loads, their respective thermal resistances based on ICS model and a temperature account the long term BHE interaction effect. A new hybrid implementation of the Ashrae is also described for arbitrary borehole field configuration design. This arbitrary shaped the peculiar needs of each application project. Current free or commercial programs according to a priori determined set of available configurations in terms of borefield shape real applications often require the borehole field geometry not to respect a regular matrix a toolkit for Thermal Response Test (TRT) analysis which allows the estimation of BHE toolkit provides also a method for the evaluation of the error related to TRT analysis results. estimation of borehole thermal resistance based on literature review is also presented.
A Web Application for Geothermal Borefield Design
FOSSA, MARCO;ROLANDO, DAVIDE
2015-01-01
Abstract
The correct design of a borehole heat exchanger (BHE) system implies the accurate knowledge properties, the correct evaluation of building heating or cooling demands and the correct length related to BHE configuration shape. A careful design is required to make profitable time performance. In this paper the principle and description of a web-based suite of tools for BHE design is implement some of the main procedures universally adopted in BHE system design. A implementation of an improved ASHRAE method which allows the BHE system to be designed building heat loads, their respective thermal resistances based on ICS model and a temperature account the long term BHE interaction effect. A new hybrid implementation of the Ashrae is also described for arbitrary borehole field configuration design. This arbitrary shaped the peculiar needs of each application project. Current free or commercial programs according to a priori determined set of available configurations in terms of borefield shape real applications often require the borehole field geometry not to respect a regular matrix a toolkit for Thermal Response Test (TRT) analysis which allows the estimation of BHE toolkit provides also a method for the evaluation of the error related to TRT analysis results. estimation of borehole thermal resistance based on literature review is also presented.
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