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- W2208834543 abstract "Deep underground mining is highly energy intensive due to the need to overcome high pressure rise required by ventilation fans, high cooling load in summer due to rise in rock temperature and the auto-compression effect, and heating requirement in winter. Rising energy costs have led the mining industry to look for alternatives in energy-efficient systems to reduce the operating costs as well as to reduce the carbon footprint. This paper addresses the challenge by utilizing naturally available renewable energy source from seasonal cycle for heating and cooling of underground mines: heat in the summer is stored in the rock-pit to be used for heating in winter, and the “cold” energy in winter is captured and is stored in the rock-pit for cooling during summer. A three-dimensional unsteady local thermal non-equilibrium (LTNE) model is developed to evaluate thermal storage and heat transfer between ventilation air and rock-pit (large broken rock mass). The results suggest that the seasonal thermal energy storage (Se-TES) of rock-pit is able to assist thermal management in underground mine and to reduce energy consumption for winter heating and summer cooling. The ventilation air temperature is about 15 to 20 ˚C higher/lower as compared to ambient temperature in winter/summer, respectively. Clearly, this shows potential application of large scale Se-TES in mining industry." @default.
- W2208834543 created "2016-06-24" @default.
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- W2208834543 date "2015-08-01" @default.
- W2208834543 modified "2023-09-25" @default.
- W2208834543 title "Heat Transfer Analysis of Large Scale Seasonal Thermal Energy Storage for Underground Mine Ventilation" @default.
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- W2208834543 doi "https://doi.org/10.1016/j.egypro.2015.07.324" @default.
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