Abstract: Borehole thermal energy storage (BTES) systems have garnered significant attention owing to their efficacy in storing thermal energy for heating and cooling applications. Accurate modeling is paramount for ensuring the precise design and operation of BTES systems. This study conducts a sensitivity analysis of BTES modeling by employing […]
Highlights
- Thermal energy can be stored and recovered using BTES for both heating and cooling.
- Sensitivity analysis of BTES considers five key parameters for design and operation.
- Roundtrip efficiency is highly sensitive to spacing and volumetric flow rate variations.
- Thermal conductivity of soil and grout material significantly impacts BTES performance.
- Optimum BTES model achieves impressive cyclic efficiency of 83.4% over 10 years.
Title: Sensitivity analysis of borehole thermal energy storage: examining key factors for system optimization
Authors: Piyush Kumar Kumawat, Haiyan Zhou, Kevin Kitz, John McLennan, Kody Powell, Milind Deo, Palash Panja
Keywords: Borehole thermal energy storage (BTES), Outlet temperature, Round-trip efficiency, Heating and cooling modes, Well spacing, Grout thermal conductivity, Charging and discharging rates, Soil thermal conductivity
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