%P 4980-4985
%V 158
%I Elsevier Ltd
%A M. Fong
%A M. Alzoubi
%A A.P. Sasmito
%A J.C. Kurnia
%T Performance evaluation of ground-coupled seasonal thermal energy storage with high resolution weather data: Case study of Calgary Canada
%L scholars12203
%J Energy Procedia
%O cited By 0; Conference of 10th International Conference on Applied Energy, ICAE 2018 ; Conference Date: 22 August 2018 Through 25 August 2018; Conference Code:146442
%R 10.1016/j.egypro.2019.01.669
%D 2019
%X The interest in harnessing renewable sources of energy for space heating in residential applications has increased in recent decades due in part to their cost benefits and an increase in environmental awareness. The proposed system uses shallow ground as an energy reservoir; able to absorb heat during the summer and release it during the winter respectively. This paper presents by means of a mathematical model an analysis of such a system using real temperature profiles and compares them to idealized fitted functions. A validated two-dimensional multiphase model describing mass, momentum, turbulence and conjugate heat transfer between the bayonet tube and the ground is used to compare the effects of using a simplified fitted function to represent the ambient temperature with that of hourly temperature readings from a weather monitoring station. The results indicate that the strong random nature of the temperature variations complicates the analysis. It is shown that fitted functions can over predict the overall performance of the system, however under-predict the performance on the short term due in part to cold snaps, heat waves and variations in temperatures. While the benefits and capabilities of the system under real loads show the potential of the system, work on thermal buffering or real-time intelligent control systems for quality control will be necessary to maintain constant temperature for thermal comfort and optimum energy extraction. © 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the scientific committee of ICAE2018 - The 10th International Conference on Applied Energy.
%K Digital storage; Functions; Geothermal energy; Heat storage; Heat transfer; Latent heat; Meteorology; Military equipment; Real time systems; Temperature; Thermography (temperature measurement), Bayonet tubes; Conjugate heat transfer; Constant temperature; Environmental awareness; Residential application; Seasonal storage; Temperature variation; Weather data, Quality control