George Yaw Obeng
Department of Mechanical EngineeringLife SciencesPhysical SciencesSocial Sciences

George Yaw Obeng

59 Publications29 Research Themes39 Open Access
Research Overview & Focus

The researcher has been investigating several sustainability challenges in Ghana, particularly in the energy sector and agriculture. They have focused on improving energy access, enhancing food production efficiency, and advancing agro-e经济 systems. By leveraging technologies such as solar photovoltaic (PV) systems, biomass-based methods, and smart grids, they have sought to address these issues while also exploring broader trends in sustainable energy and biofuels across the globe.

Faculty Biography

Prof. George Yaw Obeng is a Former Dean, Faculty of Mechanical and Chemical Engineering, Former Head, Department of Mechanical Engineering and Director of Technology Consultancy Centre, KNUST. He is a Barrett Global Fellow and Senior Sustainability Fellow, Julie Ann Wrigley Global Institute of Sustainability of Arizona State University, USA where he served as a visiting faculty. He is also a Fellow of The Brew-Hammond Energy Center, KNUST. He has been a faculty of KNUST for about 30 years. He teaches production engineering, machine shop and factory design, engineering research & quantitative methods and renewable/sustainable energy applications for the developing world. His primary research areas include renewable energy (solar, bioenergy), emissions and engineering design. He holds a PhD, MSc, BSc. He has also been trained in Design Process at MIT D-Lab, Boston/Cambridge and Design of Dies & Molds at CITD Hyderabad, India. He has served on several local and international committees including Steering Committee Member of Ghana Jatropha (GHAJA) Project; Member Kumasi Business Incubator (KBI); Research Group on Culture, Knowledge and Development of the Center for Development Research (ZEF) University of Bonn, Germany; Planning Meeting on ASADI VI agenda for the Energy Access, Pretoria; Advisory Committee on Design and Urbanisation, New York, USA and GlobalResolve of Arizona State University (ASU), USA. He has international experience working with EU, CIDA, EUEI-PDF, GEF/UNDP, GEDAP/World Bank, Rockefeller Foundation, USAID/IDIN project, MIT D-Lab USA, University of Pennsylvania USA, Olin College USA, Centre for Development Research (ZEF), Bonn-Germany, Arizona State University (ASU) in development focused research. He has travelled extensively, on international collaborations, to several countries in AFRICA - Burkina Faso, Ivory Coast, Senegal, Liberia, Togo, Nigeria, Tanzania, Uganda, Ethiopia, Kenya, South Africa, Cape Verde and The Gambia. EUROPE - Germany, Denmark, United Kingdom, Italy, The Netherlands, Belgium, Sweden, France, Switzerland, Austria. ASIA – India (New Delhi, Chandigarh, Hyderabad), United Arab Emirates (Dubai). USA – Massachusetts (Boston/Cambridge, Rockport), Arizona (Tempe, Mesa, Flagstaff, Phoenix), Philadelphia, New York, New Jersey, Salt Lake City, California (San Francisco, Sacramento, Berkeley, Davis), Virginia, Washington DC. He combines engineering and planning tools to undertake R&D in renewable energy, environment, quality of life and productive improvements in Ghana and Africa. Arising out of his R&D efforts are journal articles, conference papers, technical papers and working prototypes.

Key Research Themes (29)
Life Sciences

African Botany and Ecology Studies

Physical Sciences

Agriculture Sustainability and Environmental Impact

Life Sciences

Bamboo properties and applications

Life Sciences

Banana Cultivation and Research

Physical Sciences

Building Energy and Comfort Optimization

Life Sciences

Cassava research and cyanide

Life Sciences

Climate change impacts on agriculture

Social Sciences

Climate Change Policy and Economics

Life Sciences

Cocoa and Sweet Potato Agronomy

Physical Sciences

Coconut Research and Applications

Physical Sciences

Edible Oils Quality and Analysis

Physical Sciences

Electric Vehicles and Infrastructure

Physical Sciences

Energy and Environment Impacts

Physical Sciences

Energy Efficiency and Management

Life Sciences

Genetics and Plant Breeding

Physical Sciences

Heavy metals in environment

Physical Sciences

Hybrid Renewable Energy Systems

Physical Sciences

Hygrothermal properties of building materials

Life Sciences

Livestock and Poultry Management

Social Sciences

Medical and Agricultural Research Studies

Physical Sciences

Mining and Resource Management

Physical Sciences

Modeling, Simulation, and Optimization

Physical Sciences

Phase Change Materials Research

Physical Sciences

Refrigeration and Air Conditioning Technologies

Physical Sciences

Smart Grid Energy Management

Physical Sciences

Solar Energy Systems and Technologies

Physical Sciences

Solar Thermal and Photovoltaic Systems

Physical Sciences

Thermochemical Biomass Conversion Processes

Physical Sciences

Transportation Safety and Impact Analysis

Publications (59)

Bridging renewable energy policy and sustainable aviation fuel deployment: empirical insights from biomass resources in West Africa

Design and integration of a solar photovoltaic system for mechanized and sustainable cocoa pod splitting

Open Access
2025Cocoa and Sweet Potato AgronomyDOI: 10.1016/j.solcom.2025.100138

Energy, emissions, and economics of institutional solar PV cooking: evidence from an experimental study

Open Access
2025Energy and Environment ImpactsDOI: 10.1016/j.sciaf.2025.e02853

Genetic Analysis of White Maize (Zea Mays L.) Inbred Lines Under Low Soil Nitrogen

Open Access
2025Genetics and Plant BreedingDOI: 10.21203/rs.3.rs-6379832/v1

Techno-environmental assessment of the fuel properties of a variety of briquettes for biomass boiler applications

Open Access
2025Thermochemical Biomass Conversion ProcessesDOI: 10.1016/j.cles.2025.100185

Advancing the solar cooking revolution: Insights into the evolving landscape of solar PV-based electric cooking

Open Access
2025Solar Thermal and Photovoltaic SystemsDOI: 10.1016/j.seja.2025.100091

Experimental analysis of an institutional solar PV-powered steam cooker with sand-based thermal energy storage

Open Access
2025Solar Thermal and Photovoltaic SystemsDOI: 10.1016/j.seja.2025.100122

Techno-economic analysis of green hydrogen production and electric vehicle charging using redundant energy on a solar photovoltaic mini-grid

Open Access
2024Hybrid Renewable Energy SystemsDOI: 10.1016/j.cles.2024.100165

Investigating green hydrogen production operated by redundant energy on a solar PV mini-grid through matlab simulation and artificial neural network

2024Hybrid Renewable Energy SystemsDOI: 10.1016/j.ijhydene.2024.09.102

Employing bibliometric analysis to identify the trends, evolution, and future research directions of sand-based thermal energy storage systems

2024Phase Change Materials ResearchDOI: 10.1016/j.est.2024.112343

Green building adaptation in hot-humid climates: assessment of coconut and corn husk fiber composite bricks as energy-efficient building envelopes

2024Hygrothermal properties of building materialsDOI: 10.1108/ijbpa-11-2022-0178

Techno-economic viability of decentralised solar photovoltaic-based green hydrogen production for sustainable energy transition in Ghana

Open Access
2024Hybrid Renewable Energy SystemsDOI: 10.1016/j.solcom.2024.100068

Analysis and hypothesis testing of redundant energy of solar home systems without net-metering

2023Energy and Environment ImpactsDOI: 10.1016/j.renene.2023.119736

Techno-economic and environmental estimation assessment of floating solar PV power generation on Akosombo dam reservoir in Ghana

Open Access
2023Hybrid Renewable Energy SystemsDOI: 10.1016/j.egyr.2023.09.073

Optimisation of thermal energy storage systems incorporated with phase change materials for sustainable energy supply: A systematic review

Open Access
2023Phase Change Materials ResearchDOI: 10.1016/j.egyr.2023.09.044

Machine learning of redundant energy of a solar PV Mini-grid system for cooking applications

2023Energy and Environment ImpactsDOI: 10.1016/j.solener.2023.06.008

Fault detection model for a variable speed heat pump

Open Access
2023Building Energy and Comfort OptimizationDOI: 10.1186/s44147-023-00216-6

Unlocking the potential of solar electric vehicles for post-COVID recovery and growth in the transport sector in Ghana

Open Access
2023Electric Vehicles and InfrastructureDOI: 10.1016/j.sciaf.2023.e01583

Assessment of aboveground, belowground, and total biomass carbon storage potential of <i>Bambusa vulgaris</i> in a tropical moist forest in Ghana, West Africa

Open Access
2023Bamboo properties and applicationsDOI: 10.1051/rees/2023001

Efficient control of cascade heat pumps using variable speed compressors

Open Access
2022Refrigeration and Air Conditioning TechnologiesDOI: 10.1016/j.sciaf.2022.e01399

Assessing the impact of hydro energy project on poverty alleviation: The case of Bui Dam in Ghana

2022Energy and Environment ImpactsDOI: 10.1016/j.enpol.2022.113227

Unlocking the potential of solar PV electric cooking in households in sub-Saharan Africa – The case of pressurized solar electric cooker (PSEC)

Open Access
2022Energy and Environment ImpactsDOI: 10.1016/j.sciaf.2022.e01328

Experimental investigation of thermal management techniques for improving the efficiencies and levelized cost of energy of solar PV modules

Open Access
2022Solar Thermal and Photovoltaic SystemsDOI: 10.1016/j.csite.2022.102133

Analysis of indoor set-point temperature of split-type ACs on thermal comfort and energy savings for office buildings in hot-humid climates

Open Access
2022Building Energy and Comfort OptimizationDOI: 10.1016/j.enbenv.2022.02.006

Optimization of industrial energy consumption for sustainability using time-series regression and gradient descent algorithm based on historical electricity consumption data

Open Access
2022Energy Efficiency and ManagementDOI: 10.1016/j.samod.2022.100004

Effects of roof angle, inlet gap size and dryer height on temperature and relative humidity in a chimney-dependent solar crop dryer

Open Access
2022Solar Energy Systems and TechnologiesDOI: 10.1051/rees/2022006

Fabricators and End-Users of Single-Pot Biomass Stoves: Conceptualizing, Hypothesis and Performance Metrics for Developing Energy Sustainability Framework

Open Access
2021Energy and Environment ImpactsDOI: 10.3390/su13137098

Performance evaluation of mechanical feed mixers using machine parameters, operational parameters and feed characteristics in Ashanti and Brong-Ahafo regions, Ghana

Open Access
2021Livestock and Poultry ManagementDOI: 10.1016/j.aej.2021.03.061

Production processes and statistical analysis of ceramic liner-hole parameters for sustainability and improved thermal efficiency of clean biomass stoves

Open Access
2021Energy and Environment ImpactsDOI: 10.1051/rees/2021023

Eco-Friendly Yield and Greenhouse Gas Emissions as Affected by Fertilization Type in a Tropical Smallholder Rice System, Ghana

Open Access
2020Agriculture Sustainability and Environmental ImpactDOI: 10.3390/su122410239

Coconut Wastes as Bioresource for Sustainable Energy: Quantifying Wastes, Calorific Values and Emissions in Ghana

Open Access
2020Coconut Research and ApplicationsDOI: 10.3390/en13092178

Integrated system efficiency in reducing redundancy and promoting residential renewable energy in countries without net-metering: A case study of a SHS in Ghana

2020Smart Grid Energy ManagementDOI: 10.1016/j.renene.2020.03.099

Minimizing heat transmission loads and improving energy efficiency of building envelopes in sub-Saharan Africa using bio-based composite materials

Open Access
2020Hygrothermal properties of building materialsDOI: 10.1016/j.sciaf.2020.e00358

Electricity Access, Community Healthcare Service Delivery, and Rural Development Nexus: Analysis of 3 Solar Electrified CHPS in Off-Grid Communities in Ghana

Open Access
2020Energy and Environment ImpactsDOI: 10.1155/2020/9702505

Agricultural Greenhouse Gases from Sub-Saharan Africa

2018Climate change impacts on agricultureDOI: 10.1007/978-981-13-3272-2_6

Apportionment of Funds to Mining-Impacted Communities within Forest Reserve Environments in Ghana

Open Access
2018Mining and Resource ManagementDOI: 10.5539/enrr.v8n3p193

Field measurements and statistical analysis of perforated grating surfaces for grating fresh cassava into mash in Ghana

Open Access
2018Cassava research and cyanideDOI: 10.18697/ajfand.82.17285

Watching the Smoke Rise Up: Thermal Efficiency, Pollutant Emissions and Global Warming Impact of Three Biomass Cookstoves in Ghana

Open Access
2017Energy and Environment ImpactsDOI: 10.3390/en10050641

Watching the Smoke Rise Up: Thermal Efficiency, Pollutant Emissions and Global Warming Impact of Three Biomass Cookstoves in Ghana

Open Access
2017Energy and Environment ImpactsDOI: 10.20944/preprints201704.0164.v1

Watching the Smoke Rise Up: Thermal Efficiency, Pollutant Emissions and Global Warming Impact of Three Biomass Cookstoves in Ghana

Open Access
2017Energy and Environment ImpactsDOI: 10.20944/preprints201704.0164.v1

Rice Cultivation and Greenhouse Gas Emissions: A Review and Conceptual Framework with Reference to Ghana

Open Access
2017Agriculture Sustainability and Environmental ImpactDOI: 10.3390/agriculture7010007

SOLAR DRYER WITH BIOMASS BACKUP HEATER FOR DRYING FRUITS: DEVELOPMENT AND PERFORMANCE ANALYSIS

Open Access
2016Solar Thermal and Photovoltaic SystemsDOI: 10.4314/just.v36i2.2

Repetitive Use of Vegetable Cooking Oil and Effects on Physico-Chemical Properties – Case of Frying with Redfish ( Lutjanus fulgens )

2016Edible Oils Quality and Analysis

Quantitative Impacts of Solar PV on Television Viewing and Radio Listening in Off-grid Rural Ghana

Open Access
2014Energy and Environment ImpactsDOI: 10.5539/eer.v4n1p62

Experimental Evaluation of the Attenuation Effect of a Passive Damper on a Road Vehicle Bumper

Open Access
2014Transportation Safety and Impact AnalysisDOI: 10.4236/wjet.2014.23021

Sustainable Use of Solar PV Systems in Rural Ghana : Barriers, Barrier Removal Measures And Priority Factors

2013Energy and Environment Impacts

Solar PV Lighting and Studying after Sunset: Analysis of Micro-benefits in Off-grid Rural Ghana

Open Access
2013Energy and Environment ImpactsDOI: 10.14710/ijred.2.1.45-51

Analysis of skills and training needs of metalwork engineering enterprises in Ghana

2013Modeling, Simulation, and Optimization

When Does Compromise Prevent More Pollution?

Open Access
2012Climate Change Policy and EconomicsDOI: 10.1090/noti893

A review of trends, policies and plans for increasing energy access in Ghana

2011Energy and Environment ImpactsDOI: 10.1016/j.rser.2011.07.041

Impacts of public solar PV electrification on rural micro-enterprises: The case of Ghana

2010Energy and Environment ImpactsDOI: 10.1016/j.esd.2010.07.005

Effect of Temperature, Moisture Content, Particle Size and Roasting on Shea Butter Extraction Efficiency

2010African Botany and Ecology StudiesDOI: 10.2202/1556-3758.1848

Influence of Human Activities and Land Use on Heavy Metal Concentrations in Irrigated Vegetables in Ghana and Their Health Implications

2009Heavy metals in environmentDOI: 10.1007/978-1-4020-9139-1_2

Solar PV rural electrification and energy poverty: A review and conceptual framework with reference to Ghana

Open Access
2009Energy and Environment Impacts

A Review and Conceptual Framework With Reference to Ghana

2009Medical and Agricultural Research Studies

energy-poverty: A review and conceptual framework with reference to Ghana

2009Energy and Environment Impacts

Impact of solar photovoltaic lighting on indoor air smoke in off-grid rural Ghana

2008Energy and Environment ImpactsDOI: 10.1016/s0973-0826(08)60419-6

Solar photovoltaic electrification and rural energy-poverty in Ghana

2008Energy and Environment ImpactsDOI: 10.1016/s0973-0826(08)60418-4

Development of a mechanised plantain slicer

Open Access
2005Banana Cultivation and ResearchDOI: 10.4314/just.v24i2.32925
Academic Metrics
DepartmentDepartment of Mechanical Engineering
Total Publications59
Research Themes29
Open Access Papers39

Department of Mechanical Engineering

Kwame Nkrumah University of Science and Technology

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