Sajjan Pokhrel

Dr. Sajjan Pokhrel

The University of British Columbia
orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2022 in Renewable Energy
Verified
Journal Article
Closed access
SPSajjan Pokhrel
Sajjan Pokhrel
Agus SasmitoAgus Sasmito
Agus Sasmito
ASAtsushi Sainoki
Atsushi Sainoki
TTToshiyuki Tosha
Toshiyuki Tosha
TTTatsuya Tanaka
Tatsuya Tanaka
SGSeyed Ali Ghoreishi-Madiseh
Seyed Ali Ghoreishi-Madiseh

31 August 2020 in Applied Sciences
Verified
Journal Article
Open access
PDF file
SPSajjan Pokhrel
Sajjan Pokhrel
AKAli Fahrettin Kuyuk
Ali Fahrettin Kuyuk
HKHosein Kalantari
Hosein Kalantari
Ali MadisehAli Madiseh
Ali Madiseh
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.

1 December 2021 in Applied Energy
Verified
Journal Article
Closed access
SPSajjan Pokhrel
Sajjan Pokhrel
LALeyla Amiri
Leyla Amiri
AZAhmad Zueter
Ahmad Zueter
Sébastien PoncetSébastien Poncet
Sébastien Poncet
FHFerri P. Hassani
Ferri P. Hassani
SGSeyed Ali Ghoreishi-Madiseh
Seyed Ali Ghoreishi-Madiseh

1 April 2026
Verified
Report
Closed access
PDF file
JJJyothis Anand Prem Anand Jayaprabha
Jyothis Anand Prem Anand Jayaprabha
O(Oak Ridge Oak Ridge National Laboratory (Ornl)
Oak Ridge Oak Ridge National Laboratory (Ornl)
XLXiaobing Liu
Xiaobing Liu
SPSajjan Pokhrel
Sajjan Pokhrel
WFWes Forman
Wes Forman
HEHayden Esser
Hayden Esser

3 June 2026 in Innovative Higher Education
Verified
Journal Article
Closed access
APAna Polgár
Ana Polgár
JCJiaming Cheng
Jiaming Cheng
AVAmzy Vallenas
Amzy Vallenas
SPSajjan Pokhrel
Sajjan Pokhrel
DGDerek Gladwin
Derek Gladwin
NENaoko Ellis
Naoko Ellis

1 April 2026
Verified
Report
Open access
PDF file
SPSajjan Pokhrel
Sajjan Pokhrel
O(Oak Ridge Oak Ridge National Laboratory (Ornl)
Oak Ridge Oak Ridge National Laboratory (Ornl)
CDChristine Doughty
Christine Doughty
XLXiaobing Liu
Xiaobing Liu