Techno-Economic Trade-Off between Battery Storage and Ice Thermal Energy Storage for Application in Renewable Mine Cooling System
department or school: Applied Science, Faculty of
department or school: Mining Engineering, Keevil Institute of
data provider: DSpace
identifier citation: Applied Sciences 10 (17): 6022 (2020)
creator: Pokhrel, Sajjan
creator: Kuyuk, Ali Fahrettin
creator: Kalantari, Hosein
creator: Ghoreishi-Madiseh, Seyed Ali
issued: 2020-09-08T20:01:37Z
issued: 2020-08-31
description: This paper performs a techno-economic assessment in deploying solar photovoltaics to provide energy to a refrigeration machine for a remote underground mine. As shallow deposits are rapidly depleting, underground mines are growing deeper to reach resources situated at greater depths. This creates an immense challenge in air-conditioning as the heat emissions to mine ambient increases substantially as mines reach to deeper levels. A system-level design analysis is performed to couple PV with a refrigeration plant capable of generating 200 tonne of ice per day to help to mitigate this issue. Generated ice can directly be used in cooling deep underground mines via different types of direct heat exchangers. State-of-the-art technology is used in developing the model which aims to decrease the size and cost of a conventional refrigeration system run on a diesel generator. Costs associated with deploying a solar system are computed as per the recent market value. Energy savings, carbon emissions reduction, and net annual savings in employing the system are quantified and compared to a diesel-only scenario. In addition, two different energy storage strategies: an ice storage system and a battery storage system, are compared. A detailed economic analysis is performed over the life of the project to obtain the net cash flow diagram, payback period, and cumulative savings for both systems. Moreover, a sensitivity analysis is proposed to highlight the effect of solar intensity on solar system size and the area required for installment. The study suggests that the use of solar PV in mine refrigeration applications is technically feasible and economically viable depending on the sun-peak hours of the mine location. Additionally, the economics of deploying an ice storage system compared to the battery storage system has a better payback period and more cumulative savings.
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/75914
note: applied sciencesArticleTechno-Economic Trade-Off between Battery Storageand Ice Thermal Energy Storage for Application inRenewable Mine Cooling SystemSajjan Pokhrel , Ali Fahrettin Kuyuk, Hosein Kalantari and Seyed Ali Ghoreishi-Madiseh *NBK Institute of Mining Engineering, The University of British Columbia, Vancouver, BC V6T 1Z4, Canada;sajjan12@mail.ubc.ca (S.P.); alikuyuk@mail.ubc.ca (A.F.K.); hoseink@mail.ubc.ca (H.K.)* Correspondence: ali.madiseh@ubc.caReceived: 18 July 2020; Accepted: 24 August 2020; Published: 31 August 2020Abstract: This paper performs a techno-economic assessment in deploying solar photovoltaics toprovide energy to a refrigeration machine for a remote underground mine. As shallow deposits arerapidly depleting, underground mines are growing deeper to reach resources situated at greaterdepths. This creates an immense challenge in air-conditioning as the heat emissions to mine ambientincreases substantially as mines reach to deeper levels. A system-level design analysis is performed tocouple PV with a refrigeration plant capable of generating 200 tonne of ice per day to help to mitigatethis issue. Generated ice can directly be used in cooling deep underground mines via different typesof direct heat exchangers. State-of-the-art technology is used in developing the model which aims todecrease the size and cost of a conventional refrigeration system run on a diesel generator. Costsassociated with deploying a solar system are computed as per the recent market value. Energy savings,carbon emissions reduction, and net annual savings in employing the system are quantified andcompared to a diesel-only scenario. In addition, two different energy storage strategies: an ice storagesystem and a battery storage system, are compared. A detailed economic analysis is performed overthe life of the project to obtain the net cash flow diagram, payback period, and cumulative savings forboth systems. Moreover, a sensitivity analysis is proposed to highlight the e…
has type: Article
is shown at: 10.14288/1.0394259
language: eng
peer review status: Reviewed
provider: Vancouver : University of British Columbia Library
publisher: Multidisciplinary Digital Publishing Institute
publisher DOI: 10.3390/app10176022
rights: CC BY 4.0
rights URI: https://creativecommons.org/licenses/by/4.0/
scholar level: Faculty
subject: deep mine cooling
subject: solar electric refrigeration
subject: ice thermal energy storage
subject: techno-economic assessment
subject: solar PV design
subject: renewable energy in mining
subject: solar-powered ice maker
type: Text
identifier URI: http://hdl.handle.net/2429/75914