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A comprehensive review on carbon footprint of regular diet and ways to improving lowered emissions (2023)
Journal Article
Nabipour Afrouzi, H., Ahmed, J., Mobin Siddique, B., Khairuddin, N., & Hassan, A. (2023). A comprehensive review on carbon footprint of regular diet and ways to improving lowered emissions. Results in Engineering, 18, Article 101054. https://doi.org/10.10

In light of the SDG goals, carbon emissions from different food and food-related products have been under serious scrutiny in recent years. Despite the increasing awareness of global warming and the carbon footprint issue, food culture in different s... Read More about A comprehensive review on carbon footprint of regular diet and ways to improving lowered emissions.

Comprehensive review on the feasibility of developing wave energy as a renewable energy resource in Australia (2022)
Journal Article
Wimalaratna, Y. P., Hassan, A., Afrouzi, H. N., Mehranzamir, K., Ahmed, J., Siddique, B. M., & Liew, S. C. (2022). Comprehensive review on the feasibility of developing wave energy as a renewable energy resource in Australia. Cleaner Energy Systems, 3, Ar

The facts are that increasing energy demand, depletion of fossil fuel, and greenhouse gas emissions have increased the world's interest in renewable energy. Out of all RE options, Wave Energy (WE) is the least harnessed one despite the availability o... Read More about Comprehensive review on the feasibility of developing wave energy as a renewable energy resource in Australia.

Analysing wind power penetration in hybrid energy systems based on techno-economic assessments (2022)
Journal Article
Wimalaratna, Y. P., Afrouzi, H. N., Mehranzamir, K., Siddique, M. B. M., Liew, S. C., & Ahmed, J. (2022). Analysing wind power penetration in hybrid energy systems based on techno-economic assessments. Sustainable Energy Technologies and Assessments, 53(B

Wind is an environmentally friendly energy source that can be harnessed as an on-shore and off-shore resource. Wind energy, combined with other renewable energy systems, has resulted in a more reliable, feasible, and efficient stand-alone system, kno... Read More about Analysing wind power penetration in hybrid energy systems based on techno-economic assessments.

A comprehensive scientometric analysis on hybrid renewable energy systems in developing regions of the world (2022)
Journal Article
Sohail, M., Afrouzi, H. N., Mehranzamir, K., Ahmed, J., Mobin Siddique, M. B., & Tabassum, M. (2022). A comprehensive scientometric analysis on hybrid renewable energy systems in developing regions of the world. Results in Engineering, 16, Article 100481.

Energy crises, increasing electricity prices, and having no access to the grid electricity are the leading issues in developing countries of Asia, the Middle East, and Sub-Saharan Africa. Developing hybrid renewable energy systems in off-grid or grid... Read More about A comprehensive scientometric analysis on hybrid renewable energy systems in developing regions of the world.

Scenario-based investigation on the effect of partial shading condition patterns for different static solar photovoltaic array configurations (2021)
Journal Article
Nazer, M. N. R., Noorwali, A., Tajuddin, M. F. N., Khan, M. Z., Tazally, M. A. I. A., Ahmed, J., …Kumar, N. M. (2021). Scenario-based investigation on the effect of partial shading condition patterns for different static solar photovoltaic array configu

This paper presents an in-depth analysis and investigation on the performance of static photovoltaic (PV) array configurations subjected to various partial shading conditions (PSCs). Under PSCs, the electrical characteristics of the PV modules are cr... Read More about Scenario-based investigation on the effect of partial shading condition patterns for different static solar photovoltaic array configurations.

A skipping adaptive P&O MPPT for fast and efficient tracking under partial shading in PV arrays (2021)
Journal Article
Ahmed, J., Salam, Z., Kermadi, M., Afrouzi, H. N., & Ashique, R. H. (2021). A skipping adaptive P&O MPPT for fast and efficient tracking under partial shading in PV arrays. International Transactions on Electrical Energy Systems, 31(9), Article e13017. ht

This work presents a new Maximum Power Point Tracking (MPPT) scheme which predicts the local peak positions precisely and tracks the global peak under partial shading effectively. In addition to that, a skipping mechanism is integrated into it, which... Read More about A skipping adaptive P&O MPPT for fast and efficient tracking under partial shading in PV arrays.

Sizing and economic analysis of stand-alone hybrid photovoltaic-wind system for rural electrification: A case study Lundu, Sarawak (2021)
Journal Article
Afrouzi, H. N., Hassan, A., Wimalaratna, Y. P., Ahmed, J., Mehranzamir, K., Liew, S. C., & Malek, Z. A. (2021). Sizing and economic analysis of stand-alone hybrid photovoltaic-wind system for rural electrification: A case study Lundu, Sarawak. Cleaner Eng

Energy Consumption has been increasing at an alarming rate due to the growing energy need. More and more non-renewable sources are harvested to fulfill the energy demand resulting in and rising environmental health issues. However, harvesting Solar a... Read More about Sizing and economic analysis of stand-alone hybrid photovoltaic-wind system for rural electrification: A case study Lundu, Sarawak.

An Analysis and Modeling of the Class-E Inverter for ZVS/ZVDS at Any Duty Ratio with High Input Ripple Current (2021)
Journal Article
Ashique, R. H., Shihavuddin, A., Khan, M. M., Islam, A., Ahmed, J., Arif, M. S. B., …Siddiquee, A. (2021). An Analysis and Modeling of the Class-E Inverter for ZVS/ZVDS at Any Duty Ratio with High Input Ripple Current. Electronics, 10(11), Article 1312.

This paper presents an analysis and modeling of the class-E inverter for ZVS/ZVDS execution at any duty ratio. The methodology is to determine the input current to the inverter analytically under the assumption that it always remains positive. The la... Read More about An Analysis and Modeling of the Class-E Inverter for ZVS/ZVDS at Any Duty Ratio with High Input Ripple Current.

Techno‐economic analysis of direct combustion and gasification systems for off‐grid energy supply: A case for organic rankine cycle and dual fluidized‐bed (2021)
Journal Article
Bagherian, M. A., Mehranzamir, K., Ahmed, J., Nafea, M., Nabipour‐Afrouzi, H., Wooi, C., …Alizadeh, S. M. (2021). Techno‐economic analysis of direct combustion and gasification systems for off‐grid energy supply: A case for organic rankine cycle a

Biomass is one of the most versatile sustainable energy sources. This versatility allows utilization of different biomass feedstock using a verity of conversion techniques. Often, a biomass-to-bioenergy conversion method is selected depending on the... Read More about Techno‐economic analysis of direct combustion and gasification systems for off‐grid energy supply: A case for organic rankine cycle and dual fluidized‐bed.

A Comprehensive Review on the Application of Bioethanol/Biodiesel in Direct Injection Engines and Consequential Environmental Impact (2021)
Journal Article
Siddique, M. B. M., Khairuddin, N., Ali, N. A., Hassan, M. A., Ahmed, J., Kasem, S., …Afrouzi, H. N. (2021). A Comprehensive Review on the Application of Bioethanol/Biodiesel in Direct Injection Engines and Consequential Environmental Impact. Cleaner En

Bioethanol/biodiesel are deemed a highly suitable alternative to conventional fuels in the near future due to their versatility in production techniques and operability. This paper examines the engine performance and possible scope of improvement in... Read More about A Comprehensive Review on the Application of Bioethanol/Biodiesel in Direct Injection Engines and Consequential Environmental Impact.

Basic Home Automation Using Smart Sockets with Power Management (2021)
Journal Article
Ahmed, J., Then, Y. L., Asif, N., & Kashem, S. (2021). Basic Home Automation Using Smart Sockets with Power Management. International Journal of Integrated Engineering, 13(2), 99-108

The power generated in today’s time is dominated using fossil fuels that may get exhausted within the coming decades. Monitoring and management of the energy consumption hold a prime standing due to the discrepancy between power demand and production... Read More about Basic Home Automation Using Smart Sockets with Power Management.

An effective salp swarm based MPPT for photovoltaic systems under dynamic and partial shading conditions (2021)
Journal Article
Jamaludin, M. N. I., Tajuddin, M. F. N., Ahmed, J., Azmi, A., Azmi, S. A., Ghazali, N. H., …Alhelou, H. H. (2021). An effective salp swarm based MPPT for photovoltaic systems under dynamic and partial shading conditions. IEEE Access, 9, 34570-34589. htt

This study proposes a duty cycle-based direct search method that capitalizes on a bioinspired optimization algorithm known as the salp swarm algorithm (SSA). The goal is to improve the tracking capability of the maximum power point (MPP) controller f... Read More about An effective salp swarm based MPPT for photovoltaic systems under dynamic and partial shading conditions.

An Investigation of Passive Cooling in a Building in Malaysia (2020)
Journal Article
Kashem, S. B. A., Chowdhury, M., Khandakar, A., Tabassum, M., Ashraf, A., & Ahmed, J. (2020). An Investigation of Passive Cooling in a Building in Malaysia. International Journal of Technology, 1(2), 4-27

In hot humid countries like Malaysia, a comfortably thermal environment is what people look for. To achieve such conditions, a technique called passive cooling must be the optimal choice. Many other techniques have been investigated over the years an... Read More about An Investigation of Passive Cooling in a Building in Malaysia.

Recent developments of MPPT techniques for PV systems under partial shading conditions: a critical review and performance evaluation (2020)
Journal Article
Kermadi, M., Salam, Z., Eltamaly, A. M., Ahmed, J., Mekhilef, S., Larbes, C., & Berkouk, E. M. (2020). Recent developments of MPPT techniques for PV systems under partial shading conditions: a critical review and performance evaluation. IET Renewable Powe

This review covers global maximum power point tracking (GMPPT) methods for photovoltaic (PV) systems under partial shading conditions. Unlike the previous review works that primarily focused on soft computing and hybrid GMPPT, this study gives exclus... Read More about Recent developments of MPPT techniques for PV systems under partial shading conditions: a critical review and performance evaluation.

A comprehensive investigation of suitable biomass raw materials and biomass conversion technology in Sarawak, Malaysia (2020)
Journal Article
Kashem, S. B. A., Chowdhury, M., Khandakar, A., Tabassum, M., Ashraf, A., & Ahmed, J. (2020). A comprehensive investigation of suitable biomass raw materials and biomass conversion technology in Sarawak, Malaysia. International Journal of Technology, 1(2)

Nowadays, reducing pollution, saving mother Earth had become everyone’s responsibility. However, the great improvement in technologies leads to large energy demands. Many countries have tried to find renewable energy as their alternative energy sourc... Read More about A comprehensive investigation of suitable biomass raw materials and biomass conversion technology in Sarawak, Malaysia.

Wind Power Integration with Smart Grid and Storage System: Prospects and Limitations (2020)
Journal Article
Kashem, S. B. A., Chowdhury, M. E., Khandakar, A., Ahmed, J., Ashraf, A., & Shabrin, N. (2020). Wind Power Integration with Smart Grid and Storage System: Prospects and Limitations. International Journal of Advanced Computer Science and Applications, 11(5

Wind power generation is playing a pivotal role in adopting renewable energy sources in many countries. Over the past decades, we have seen steady growth in wind power generation throughout the world. This article aims to summarize the operation, con... Read More about Wind Power Integration with Smart Grid and Storage System: Prospects and Limitations.

Assessment of maximum power point trackers performance using direct and indirect control methods (2020)
Journal Article
Kermadi, M., Mekhilef, S., Salam, Z., Ahmed, J., & Berkouk, E. M. (2020). Assessment of maximum power point trackers performance using direct and indirect control methods. International Transactions on Electrical Energy Systems, 30(10), Article e12565. ht

The direct and indirect control methods are commonly used for maximum power point tracker (MPPT) of photovoltaic (PV) systems. Due to the absence of the literature that assess their performance in a comprehensive way, this work attempts to analyze th... Read More about Assessment of maximum power point trackers performance using direct and indirect control methods.

Feasibility Study of Solar Power System in Residential Area (2020)
Journal Article
Abul, S. B., Muhammad, E., Tabassum, M., Muscat, O., Molla, M. E., Ashraf, A., & Ahmed, J. (2020). Feasibility Study of Solar Power System in Residential Area. International Journal of Innovation in Computational Science and Engineering, 1(1), 10-17

The present paper studied the feasibility of solar power system in the residential area in Kuching. Generally, the solar power system described in this paper is defined as a small-scale photovoltaic (PV) based system that can be installed within a ho... Read More about Feasibility Study of Solar Power System in Residential Area.

Review on Comparison of Solar Transport Vehicle with Full Electric Vehicle (2020)
Journal Article
Tabassum, M., Kashem, S. B. A., Chowdhury, M., Khandakar, A., Ashraf, A., & Ahmed, J. (2020). Review on Comparison of Solar Transport Vehicle with Full Electric Vehicle. International Journal of Technology, 1(2), 184-201

Nowadays, the earth is facing resources limitation especially fossil fuels. It is essential to make a new study of the renewable source to sustain the demand for energy. The solar car had been recognized to become an alternative way to replace the us... Read More about Review on Comparison of Solar Transport Vehicle with Full Electric Vehicle.

A review of available hybrid renewable energy systems in Malaysia (2020)
Journal Article
Tambi, N. H. M., Afrouzi, H. N., Mehranzamir, K., & Ahmed, J. (2020). A review of available hybrid renewable energy systems in Malaysia. International Journal of Power Electronics and Drive Systems, 11(1), 433-441. https://doi.org/10.11591/ijpeds.v11.i1.p

The utilization of conventional sources of energy releases harmful pollutants to the environment causing global warming and acid rain. For that reason, it becomes necessary to use a non-depletable, sustainable and eco-friendly renewable energy as a m... Read More about A review of available hybrid renewable energy systems in Malaysia.

A high-performance global maximum power point tracker of PV system for rapidly changing partial shading conditions (2020)
Journal Article
Kermadi, M., Salam, Z., Ahmed, J., & Berkouk, E. M. (2021). A high-performance global maximum power point tracker of PV system for rapidly changing partial shading conditions. IEEE Transactions on Industrial Electronics, 68(3), 2236-2245. https://doi.org/

This article proposes a fast and efficient maximum power point tracker (MPPT) for photovoltaic (PV) systems under rapidly changing partial shading conditions. An intelligent mechanism is adopted to systematically schedule the search for the global ma... Read More about A high-performance global maximum power point tracker of PV system for rapidly changing partial shading conditions.

Design and implementation of a quadruped amphibious robot using duck feet (2019)
Journal Article
Kashem, S. B. A., Jawed, S., Ahmed, J., & Qidwai, U. (2019). Design and implementation of a quadruped amphibious robot using duck feet. Robotics, 8(3), Article 77. https://doi.org/10.3390/robotics8030077

Roaming complexity in terrains and unexpected environments pose significant difficulties in robotic exploration of an area. In a broader sense, robots have to face two common tasks during exploration, namely, walking on the drylands and swimming thro... Read More about Design and implementation of a quadruped amphibious robot using duck feet.

Modified Series-Parallel Photovoltaic Configuration to Enhance Efficiency under Partial Shading (2019)
Journal Article
Ahmed, J., Nabipour-Afrouzi, H., & Tajuddin, M. F. N. (2019). Modified Series-Parallel Photovoltaic Configuration to Enhance Efficiency under Partial Shading. International Journal of Integrated Engineering, 11(3), 207-215. https://doi.org/10.30880/ijie.+

Partial shading is a phenomenon where photovoltaics (PV) array experiences irregular level of irradiances. Such mismatch can cause a significant reduction in power yield. To mitigate the effect of partial shading, PV modules in an array are connected... Read More about Modified Series-Parallel Photovoltaic Configuration to Enhance Efficiency under Partial Shading.

An effective hybrid maximum power point tracker of photovoltaic arrays for complex partial shading conditions (2018)
Journal Article
Kermadi, M., Salam, Z., Ahmed, J., & Berkouk, E. M. (2019). An effective hybrid maximum power point tracker of photovoltaic arrays for complex partial shading conditions. IEEE Transactions on Industrial Electronics, 66(9), 6990-7000. https://doi.org/10.11

This paper proposes an improved maximum power point tracker (MPPT) for photovoltaic (PV) system. The scheme is a hybrid between the adaptive perturb and observe and particle swarm optimization (PSO). The algorithm incorporates the search-skip-judge (... Read More about An effective hybrid maximum power point tracker of photovoltaic arrays for complex partial shading conditions.

An enhanced adaptive P&O MPPT for fast and efficient tracking under varying environmental conditions (2018)
Journal Article
Ahmed, J., & Salam, Z. (2018). An enhanced adaptive P&O MPPT for fast and efficient tracking under varying environmental conditions. IEEE Transactions on Sustainable Energy, 9(3), 1487-1496. https://doi.org/10.1109/TSTE.2018.2791968

This paper proposes an enhanced adaptive perturb and observe (EA-P&O) maximum power point tracking (MPPT) algorithm for the photovoltaic system. The objective is to mitigate the limitations of the conventional P&O namely, the steady-state oscillation... Read More about An enhanced adaptive P&O MPPT for fast and efficient tracking under varying environmental conditions.

An accurate method for MPPT to detect the partial shading occurrence in a PV system (2017)
Journal Article
Ahmed, J., & Salam, Z. (2017). An accurate method for MPPT to detect the partial shading occurrence in a PV system. IEEE Transactions on Industrial Informatics, 13(5), 2151-2161. https://doi.org/10.1109/TII.2017.2703079

This paper proposes an accurate detection scheme that effectively differentiates the partial shading from the uniform change of irradiance. By doing so, it avoids the unnecessary global peak search which results in a drop of the maximum power point t... Read More about An accurate method for MPPT to detect the partial shading occurrence in a PV system.

A Modified P&O Maximum Power Point Tracking Method with Reduced Steady State Oscillation and Improved Tracking Efficiency (2016)
Journal Article
Ahmed, J., & Salam, Z. (2016). A Modified P&O Maximum Power Point Tracking Method with Reduced Steady State Oscillation and Improved Tracking Efficiency. IEEE Transactions on Sustainable Energy, 7(4), 1506-1515. https://doi.org/10.1109/TSTE.2016.2568043

This paper proposes a method to reduce the steadystate oscillation and to mitigate the probability of losing the tracking direction of the perturb and observed (P&O)-based maximum power point tracking (MPPT) for PV system. The modified scheme retains... Read More about A Modified P&O Maximum Power Point Tracking Method with Reduced Steady State Oscillation and Improved Tracking Efficiency.

An improved method to predict the position of maximum power point during partial shading for PV arrays (2015)
Journal Article
Ahmed, J., & Salam, Z. (2015). An improved method to predict the position of maximum power point during partial shading for PV arrays. IEEE Transactions on Industrial Informatics, 11(6), 1378-1387. https://doi.org/10.1109/TII.2015.2489579

For a photovoltaic (PV) system, it is widely assumed that the peaks of a partially shaded P-V curve are located at the multiples of 0.8V oc , where V oc is the open-circuit voltage of the PV module. However, this assumption - known as the of 0.8V oc... Read More about An improved method to predict the position of maximum power point during partial shading for PV arrays.

Partial shading in building integrated PV system: Causes, effects and mitigating techniques (2015)
Journal Article
Salam, Z., Ramli, Z., Ahmed, J., & Amjad, M. (2015). Partial shading in building integrated PV system: Causes, effects and mitigating techniques. International Journal of Power Electronics and Drive Systems, 6(4), 712-722. https://doi.org/10.11591/ijpeds.

This paper is aimed to provide a holistic understanding on the issues related to partial shading: its causes, the theoretical and physical reasons behind it, its implications on the BIPV system. Furthermore the possible mitigation techniques using t... Read More about Partial shading in building integrated PV system: Causes, effects and mitigating techniques.

An improved perturb and observe (P&O) maximum power point tracking (MPPT) algorithm for higher efficiency (2015)
Journal Article
Ahmed, J., & Salam, Z. (2015). An improved perturb and observe (P&O) maximum power point tracking (MPPT) algorithm for higher efficiency. Applied Energy, 150, 97-108. https://doi.org/10.1016/j.apenergy.2015.04.006

This paper proposes a method to improve the efficiency of the P&O maximum power point tracker (MPPT) by reducing the steady state oscillation and eliminating the possibility of the algorithm to lose its tracking direction. A dynamic perturbation step... Read More about An improved perturb and observe (P&O) maximum power point tracking (MPPT) algorithm for higher efficiency.

A critical evaluation on maximum power point tracking methods for partial shading in PV systems (2015)
Journal Article
Ahmed, J., & Salam, Z. (2015). A critical evaluation on maximum power point tracking methods for partial shading in PV systems. Renewable and Sustainable Energy Reviews, 47, 933-953. https://doi.org/10.1016/j.rser.2015.03.080

As photovoltaic (PV) system suffers considerable energy loss due to partial shading (PS), various approaches have been proposed to mitigate this problem. Among these, improving the maximum power point tracker (MPPT) algorithm seems to be the most fea... Read More about A critical evaluation on maximum power point tracking methods for partial shading in PV systems.

A Maximum Power Point Tracking (MPPT) for PV system using Cuckoo Search with partial shading capability (2014)
Journal Article
Ahmed, J., & Salam, Z. (2014). A Maximum Power Point Tracking (MPPT) for PV system using Cuckoo Search with partial shading capability. Applied Energy, 119, 118-130. https://doi.org/10.1016/j.apenergy.2013.12.062

Objectives This work proposes a Maximum Power Point Tracking (MPPT) for PV system using Cuckoo Search (CS) method. Methods It is acknowledged that CS exhibits several advantages which include fast convergence, higher efficiency using fewer tunin... Read More about A Maximum Power Point Tracking (MPPT) for PV system using Cuckoo Search with partial shading capability.

The application of soft computing methods for MPPT of PV system: A technological and status review (2013)
Journal Article
Salam, Z., Ahmed, J., & Merugu, B. S. (2013). The application of soft computing methods for MPPT of PV system: A technological and status review. Applied Energy, 107, 135-148. https://doi.org/10.1016/j.apenergy.2013.02.008

With the availability of powerful and low cost computing power, maximum power point tracking (MPPT) that utilizes soft computing (SC) techniques are attracting substantial interests from the PV communities. Due to their flexibility and ability to han... Read More about The application of soft computing methods for MPPT of PV system: A technological and status review.

Design of a Cost Effective Off-Grid Wind-Diesel Hybrid Power System in an Island of Bangladesh (2011)
Journal Article
Nahid-Al-Masood, Mirza, R., Ahmed, J., Abedin, A. H., Deeba, S., Hafiz, F., …Chowdhury, A. H. (2011). Design of a Cost Effective Off-Grid Wind-Diesel Hybrid Power System in an Island of Bangladesh. International Journal of Electrical and Computer Engine

Bangladesh is a developing country with large population. Demand of electrical energy is increasing day by day because of increasing population and industrialization. But due to limited resources, people here are suffering from power crisis problem w... Read More about Design of a Cost Effective Off-Grid Wind-Diesel Hybrid Power System in an Island of Bangladesh.