Reference number : GC-2017-Q4-01090, amendment number : , agreement type : G, recipient legal name : Liu, Wei Victor (University of Alberta), recipient country : CA, recipient province : nan, recipient city : Alberta, recipient postal code : nan, program name english : Engage Grants for universities, program name french : Subventions d'engagement partenarial pour les universités, program purpose english : In Alberta, new buildings have also been increasingly utilizing the GeoExchange system, which uses the_x000D_
shallow ground-mostly less than 150 meter-as an energy reservoir for space cooling and heating. In the system,_x000D_
the borehole heat exchanger (BHE) is the most crucial one because the efficiency of the GeoExchange system_x000D_
relies primarily on the thermal interactions between BHE and its surrounding ground. Currently, the design_x000D_
approach of BHE is to use analytical solutions of heat conduction governing equations under the Laplace_x000D_
transform. However, these models do not consider the impact of groundwater flow on the thermal performance_x000D_
of BHE. This impact is beneficial because the advection of groundwater helps the dissipation of heat in the_x000D_
ground and therefore provides a synergistic effect on the performance of BHE under both cooling and heating_x000D_
modes. Consequently, this design length of BHE can be shortened, and the drilling and installation costs can be_x000D_
reduced substantially. To this end, we propose research collaboration between Revolve Engineering Inc. and_x000D_
the University of Alberta to conduct finite element method (FEM) modeling of the BHE by incorporating the_x000D_
co-simulation of groundwater. As a result, a more explicit understanding will be achieved on the complex_x000D_
thermal behavior of BHE, and the current analytical design approach will be refined for the GeoExchange_x000D_
system, leading to more economically feasible design. Since the GeoExchange system is increasingly popular_x000D_
across Canada, the outcome of this research can be directly used in other nationwide projects., program purpose french : In Alberta, new buildings have also been increasingly utilizing the GeoExchange system, which uses the_x000D_
shallow ground-mostly less than 150 meter-as an energy reservoir for space cooling and heating. In the system,_x000D_
the borehole heat exchanger (BHE) is the most crucial one because the efficiency of the GeoExchange system_x000D_
relies primarily on the thermal interactions between BHE and its surrounding ground. Currently, the design_x000D_
approach of BHE is to use analytical solutions of heat conduction governing equations under the Laplace_x000D_
transform. However, these models do not consider the impact of groundwater flow on the thermal performance_x000D_
of BHE. This impact is beneficial because the advection of groundwater helps the dissipation of heat in the_x000D_
ground and therefore provides a synergistic effect on the performance of BHE under both cooling and heating_x000D_
modes. Consequently, this design length of BHE can be shortened, and the drilling and installation costs can be_x000D_
reduced substantially. To this end, we propose research collaboration between Revolve Engineering Inc. and_x000D_
the University of Alberta to conduct finite element method (FEM) modeling of the BHE by incorporating the_x000D_
co-simulation of groundwater. As a result, a more explicit understanding will be achieved on the complex_x000D_
thermal behavior of BHE, and the current analytical design approach will be refined for the GeoExchange_x000D_
system, leading to more economically feasible design. Since the GeoExchange system is increasingly popular_x000D_
across Canada, the outcome of this research can be directly used in other nationwide projects., agreement title english : Refining the design approach for GeoExchange system, agreement title french : Refining the design approach for GeoExchange system, agreement number : EGP, agreement value : 25000.0, agreement start date : 2018-02-07, agreement end date : nan, description english : nan, description french : nan, expected results english : nan, expected results french : nan, additional information english : Grant or Award spanning more than one fiscal year (2017-2018 to 2018-2019)., additional information french : Subvention ou bourse octroyée s'appliquant à plus d'un exercice financier (2017-2018 à 2018-2019)., owner organization : nserc-crsng, owner organization title : Natural Sciences and Engineering Research Council of Canada | Conseil de recherches en sciences naturelles et en génie du Canada