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K.R. Ullah

Researcher at University of Malaya

Publications -  12
Citations -  907

K.R. Ullah is an academic researcher from University of Malaya. The author has contributed to research in topics: Renewable energy & Solar energy. The author has an hindex of 7, co-authored 11 publications receiving 748 citations. Previous affiliations of K.R. Ullah include University of New South Wales.

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Comparative study of stand-alone and hybrid solar energy systems suitable for off-grid rural electrification: A review

TL;DR: In this article, the authors presented a study on solar energy in the form of a stand-alone and hybrid power generation system used to electrify off-grid locations, which is intended to be used to power a single house or a small community and also functions as a mini-grid, generating power in places where adequate solar radiation is available throughout the year.
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A review of solar thermal refrigeration and cooling methods

TL;DR: In this article, a review of different solar thermal refrigeration systems is presented, with a specific focus on solar absorption refrigeration and solar adsorption refrigeration within various working fluids, illustrated by considering their coefficients of performance, specific cooling power, cooling capacity and minimum and maximum working temperatures.
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Performance analysis of an off-grid wind-PV (photovoltaic)-diesel-battery hybrid energy system feasible for remote areas

TL;DR: In this article, the performance of an off-grid PV (photovoltaic)-wind-diesel-battery hybrid energy system for a remote area named “KLIA Sepang Station” located in the state of Selangor, Malaysia is analyzed.
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Performance analysis of a co-generation system using solar energy and SOFC technology

TL;DR: In this paper, performance assessment of a co-generation system is presented to deliver electrical and thermal energy using the solar energy and the reversible solid oxide fuel cell, and a mathematical model of the co-generative system is developed.
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Feasibility analysis of a hybrid off-grid wind–DG-battery energy system for the eco-tourism remote areas

TL;DR: In this paper, the authors presented an analysis of a complete off-grid wind-diesel-battery hybrid renewable energy (RE) model, which can be used extensively to support and fulfill the demand of the expected loads of these areas.