Kuala Lumpur, Malaysia

University of Malaya

Kuala Lumpur, Malaysia

The University of Malaya is a public research university located in Kuala Lumpur, Malaysia. It is the oldest and most esteemed university in Malaysia. The university's name was abbreviated as Malaya during the pre-independence period.The university was founded in 1949 as a public-funded tertiary institution. Today, it has more than 2,500 faculty members. In 2012, UM was granted autonomy status by the Ministry of Higher Education.In 2014, the QS World University Rankings has ranked UM at the 151st place of the world. Wikipedia.

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Chong H.-Y.,University Tunku Abdul Rahman | Lam W.-H.,University of Malaya
Renewable and Sustainable Energy Reviews | Year: 2013

The need for renewable energy is a global demand due to both the economic factors and the environmental concerns. Malaysian government has been supportive on the research and development in the renewable energies. Renewable Energy Act (2011) and Sustainable Energy Development Authority Act (2011) have been enacted to boost the industry of renewable energy. This paper presents the current status and future prospects of renewable energy in Malaysia with particular focus on the ocean renewable energy. Five types of ocean renewable energy were reviewed including tidal barrage, tidal current energy, wave energy, Ocean Thermal Energy Conversion (OTEC) and salinity gradient power. The comparison of various types of ocean renewable energy has been made to present their recent technologies in electricity generation. Tidal current energy is identified as a preferable option particularly in the Straits of Malacca. © 2013 Elsevier Ltd.

Document Keywords (matching the query): renewable energy, ocean energy, ocean thermal energy conversion, wave energy conversion, renewable energies, tidal energy.

Daud A.-K.,Bank of The West | Ismail M.S.,University of Malaya
Renewable Energy | Year: 2012

Hybrid power systems based on renewable energy sources, especially photovoltaic and wind energy are an effective option to solve the power-supply problem for remote and isolated areas far from the grids. This paper presents a study and design of a complete hybrid system for providing the electrical loads in a family house in Palestine according to their energy requirements.A computer program is developed to achieve this and to determine the specifications of the whole system components. It uses the data of wind and solar radiation measurements of the selected rural zone and all the required information about the electrical loads. Also, the hybrid systems minimizing, simultaneously, the total cost throughout the useful life of the installation, pollutant emissions (CO 2) and dump load are taken into consideration.It is found that providing electricity to a family house in a rural zone using hybrid systems is very beneficial and competitive with the other types of conventional energy sources, especially considering the decreasing prices of these systems and their increasing efficiencies and reliability. They have also the advantage of maintaining a clean environment. © 2012 Elsevier Ltd.

Document Keywords (matching the query): renewable resource, renewable energy source, wind energy, energy efficiency, conventional energy sources.

To generate greater quantities of energy from wind, the most efficient solution would be by increasing the wind speed. Also, due to the decreasing number of economic wind energy sites, there are plans to place wind turbines closer to populated areas. To site wind turbines out from rural areas, the current problems of wind turbines need to be resolved, especially visual impact, poor starting behaviour in low wind speeds, noise and danger caused by blade failure. In this paper, a patented wind-solar hybrid renewable energy harvester is introduced. It is a compact system that integrates and optimizes several green elements and can be built on the top (or between upper levels) of high rise buildings or structures. This system can be used in remote and urban areas, particularly at locations where the wind speed is lower and more turbulent. It overcomes the inferior aspect on the low wind speed by guiding and increasing the speed of the high altitude free-stream wind through fixed or yaw-able power-augmentation-guide-vane (PAGV) before entering the wind turbine (straight-bladed vertical axis wind turbine, VAWT in this project) at center portion. PAGV is a new and innovative design where its appearance or outer design can be blended into the building architecture without negative visual impact. From the studies, it is shown that the wind speed increment in the PAGV can be produced according to the Bernoulli's principle. Computational fluid dynamics (CFD) simulation is used to optimize the geometry of the PAGV and the simulation results demonstrated the technical possibility of this innovative concept. The PAGV replaces the free air-stream from wind by multiple channels of speed-increased and directional-controlled air-stream. With the PAGV, this lift-type VAWT can be self-started and its size can be reduced for a given power output. The design is also safer since the VAWT is enclosed by the PAGV. By integrating the PAGV with the VAWT (the diameter and height of PAGV are 2 times larger than the VAWT's), the predicted power generated (at free-stream wind speed=3.5m/s) is 1.25 times higher than the VAWT that has the same size as the PAGV. This new wind energy generation configuration should generate interest in the international market, even for regions with weaker winds. The correlation between CFD simulation and wind tunnel test will be carried out and reported elsewhere. © 2010 American Institute of Physics.

Document Keywords (matching the query): renewable energy generation, wind solar energy harvester.

Ong H.C.,University of Malaya | Mahlia T.M.I.,University of Malaya | Masjuki H.H.,University of Malaya
Renewable and Sustainable Energy Reviews | Year: 2011

Abundant and economical energy is the life blood of modern civilizations. Global energy consumption in 2009 is expected to slightly increase to about 11428.1 Mtoe and around 88% are from fossil fuels. Fossil fuel will become rare and a serious shortage in the near future has triggered the awareness to find alternative energy as their sustainable energy sources. Development and economic growth continue to affect the growing demand of energy consumption in Malaysia. The crucial challenge faced by power sector in Malaysia currently is the issue of sustainability. This study discusses the current energy scenario and explores the alternative energy like biomass, solar, wind and mini-hydro energy to ensure reliability and security of energy supply in this country. It is found that, total hydropower resources and potential hydropower is 29,000 MW out of which only 2,091 MW is utilized. On the other hand, Malaysia has the potential to be one of the major contributors of renewable energy in palm oil biomass and become a role model to other countries in the world that has huge biomass feedstock. As a final note, to make the fuel mix for 2020 secure and environmentally sustainable, Malaysia must strive to increase its efforts in attaining greater efficiency in energy conversion, transmission and utilization. © 2010 Elsevier Ltd.

Document Keywords (matching the query): sustainable energy sources, energy consumption, solar energy, energy conservation, renewable energy, global energy, energy scenarios, energy conversion, alternative energy, energy supplies, current energy, energy utilization, renewable energies, sustainable energy.

Mekhilef S.,University of Malaya | Siga S.,University of Malaya | Saidur R.,University of Malaya
Renewable and Sustainable Energy Reviews | Year: 2011

The demand of increasing price in fossil fuel has prompted the global oil industry to look at the alternative sources of fuel from renewable energy source which is biodiesel. Biodiesel is considered as better option because of its environmental friendly characteristics while giving almost the same functional properties like fossil fuels. This paper will focus on the biodiesel produced in Malaysia. Palm oil is the main raw stock for biodiesel production in Malaysia as the country is one of the leading palm oil producers in the world. There are many advantages and disadvantages from the economical social and environmental aspects in the Malaysian biodiesel production in specific palm oil biodiesel. The aim of this paper is to analyze the past, current and future of palm oil biodiesel industry in Malaysia. This paper includes the technology aspect used in the palm oil biodiesel production and characteristics of pure palm oil biodiesel to meet the international market standard. Malaysia faces tough competition from other biodiesel producers like Indonesia and Brazil. The scope of this study covers the worldwide biodiesel development in brief in continuation with the challenges faced by Malaysia in becoming the top biodiesel exporter in the world with the advantages and disadvantage of using palm oil as the feedstock. © 2010 Elsevier Ltd. All rights reserved.

Document Keywords (matching the query): renewable energy resources, renewable energy, renewable energy source, renewable fuels.

Chen L.,University of Malaya | Lam W.-H.,University of Malaya
Renewable and Sustainable Energy Reviews | Year: 2014

Marine energy sources are able to make significant contributions to future energy demands. Marine current has huge potential to supply renewable energy as compared to the other energy sources. Marine environment is harsh for the installation and operation of marine current turbine (MCT). Seabed scour around marine current turbine is induced when the flow suppression occurs at the seabed. Seabed scour is widely recognised as a difficult engineering problem which is likely to cause structural instability. The study found that the previous works mainly focus on the bridge piers, wind turbines and ship propeller jets induced scour. Little information to date was found to predict the MCT induced scour. The current paper proposes the potential equations to predict the MCT induced scour. The study also recommends the consideration of the rotor into the existing equations for future research. © 2013 Elsevier Ltd.

Document Keywords (matching the query): renewable energies, marine energy, future energies, marine current energy.

Lam W.-H.,University of Malaya | Bhushan Roy C.,University of Malaya
Renewable and Sustainable Energy Reviews | Year: 2014

Several nations around the world start to consider marine renewable energy (MRE) to be an alternative energy to sustainable development. The utilisation of the ocean includes common interests for food provision, artisanal fishing opportunity, natural products, carbon storage, coastal protection, tourism and recreation, coastal livelihoods and economies, sense of place, clean waters and biodiversity. An index is required to relate the marine renewable energy industry to ocean healthiness quantitatively. The Ocean Health Index (OHI) recently published in Nature measures the healthiness of the ocean within 171 Exclusive Economic Zones (EEZs). This study identified several data gaps and suggests improvements for the treatment of MRE in OHI calculations. It is suggested to include MRE effects under pressure (pi) or resilience (ri) variables based on the MRE technology type, stage of operation and its effects on OHI goals. The study suggests the OHI may be a suitable indicator to monitor MRE developments after fully including the components of MRE. Policy makers can use the improved OHI to balance the various multiple-competing activities in maritime spatial planning. © 2014 Elsevier Ltd.

Document Keywords (matching the query): marine renewable energy.

Lim X.-L.,University of Malaya | Lam W.-H.,University of Malaya
Renewable and Sustainable Energy Reviews | Year: 2014

Clean Development Mechanism (CDM) appears to be a catalyst to reduce the cost of renewable energy projects in Malaysia. Carbon credit gained from developed countries enhances financial states of the nation and potentially pushes forward renewable energy industries. Most of the registered CDM projects are related to renewable energy, which recorded 69% out of total projects. This paper adopted to-date data from GreenTech Malaysia in order to present the CDM projects in energy sector. Institutional framework has been discussed to demonstrate the registration in CDM cycle. Although the extent of CDM's successfulness is controversial, the number of registered CDM projects in energy sector is in rising trend and helps in large amount of emission reductions in Malaysia particularly through biomass and biogas projects. CDM should encourage more new renewable technology including wind energy and tidal energy in Malaysia. © 2013 Elsevier Ltd.

Document Keywords (matching the query): renewable energies, renewable energy, renewable energy projects, renewable energy industries, renewable technology, energy policy.

Moosavian S.M.,University of Malaya | Rahim N.A.,University of Malaya | Selvaraj J.,University of Malaya | Solangi K.H.,University of Malaya
Renewable and Sustainable Energy Reviews | Year: 2013

Supplying present and future energy demand without adding to climate change is one of the most pressing problems today. Renewable energy is a potentially huge solution, for which governments are creating policies to encourage its harness and use. The dominance of photovoltaic (PV) among renewable energy technologies is owed mostly to its noiselessness, non-toxic emission, and relatively simple operation and maintenance. This study reviews the policies existing and in the making in seven leading countries that actively champion use of PV. © 2013 Elsevier Ltd.

Document Keywords (matching the query): solar energy, future energies, energy management, renewable energies, renewable energy technologies, energy policy.

Lim X.-L.,University of Malaya | Lam W.-H.,University of Malaya
Energy Policy | Year: 2014

Research and development (R&D) on marine renewable energy (MRE) in Malaysia is still in its initial stage. It is crucial to know the level of acceptance of MRE among Malaysians in order to push the technology forward. A survey was conducted to investigate public acceptance of MRE in SS2, Petaling Jaya. In addition, a face-to-face interview was conducted to understand the concerns of an investor about investing in renewable energy (RE) projects. The results of analysis showed that 82.8% of the respondents support MRE implementation in Malaysia. However, 56.8% of the respondents are reluctant to pay for green electricity. The reason is directly linked to the NIMBYist (NIMBY= Not in My Backyard) attitudes of Malaysian citizens. They are unwilling to support green energy by involving themselves, participating or paying money. Furthermore, the interviewee, on behalf of investors, expressed some opinions on concerns about investment in RE projects. Several ministries and departments are suggested as being important in MRE development. © 2013 Elsevier Ltd.

Document Keywords (matching the query): renewable resource, alternative energy, marine renewable energy, energy efficiency, renewable energies, energy policy.

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