SWOT Analysis for Electric Vehicles (EVs) in Thailand

Nowadays, transport activities are one of the major contributors to greenhouse gas (GHG) emission. It also causes air pollutants in major cities around the world as particulate matter (PM), carbon monoxide (CO) and carbon dioxide (CO2). Thai government has implemented numerous policies in reducing GHG emission of which Electric Vehicles are an interesting option. Electric vehicles (EVs) are interesting as a result of new technology they deploy, which can reduce GHG emission and friendly to the environment. This study, therefore aims to investigate EVs factors and their important by using SWOT analysis. We analyzed the strength, weaknesses, opportunities and threats related to EVs adoption in Thailand. We also established strategies for EVs adoption, via competition and attractive investment to entice local and international investors, gather and share information on countries that adopted EVs, encourage communities in discussion about EVs technology, smart grid designation, deploying well trained technicians, as well as EVs supporting policies and promotion. The result showed that policies on EVs in Thailand are concentrated on providing support to only manufacturers, entrepreneurs and importing car companies. While, the consumers support’ policies are given lesser importance. These ï¬ndings are important for the relevant authorities in Thailand in developing appropriate EVs policy for sustainable transportation

Enhancement of biogas generation in up-flow sludge blanket (UASB) bioreactor from palm oil mill effluent (POME)

© 2019 The Authors. Published by Elsevier Ltd. There are numerous different sorts of pre-treatment technique have been utilized with a few impediments regarding supportable natural administration in anaerobic assimilation for improvement of biogas generation. Albeit corrosive and salt pretreatment have a huge impact on the corruption of biomass, these techniques have some negative effects on the condition because of their perilous nature, while the enzymatic pre-treatment is more environmentally friendly. In this investigation is to streamline the biogas generation by enzymatic pre-treatment from Palm Oil Mill Effluent (POME) with assessing the improved biogas creation in a pilot scale bioreactor. It is to concentrate coordinate utilization of protein as enzymatic pre-treatment on POME to the improved generation of biogas. Proficiency of privately manufactured chemical with Up-flow Sludge Blanket (UASB) has not been researched in pilot scale previously. In this examination proficiency of COD expulsion and aggregate methane emanation is explored through pilot scale UASB bioreactor from POME through the application of enzyme and reviewed a study with the discussion

Waste coffee Oil: A promising source for biodiesel production

The oil from waste coffee possesses the potential as a feedstock for biodiesel production. In this study, waste coffee grounds were collected from Turkey. Then the oil was extracted from waste coffee grounds using N-hexane. The two-step acid-base catalyst transesterification process was used to produce biodiesel as the acid value of the crude oil was found higher (15.4 mgKOH/g).This was followed by an investigation of some physical and chemical properties. It was found that the properties of waste coffee biodiesel fell within the limit of ASTM standards. So the studied physicochemical properties of the waste coffee biodiesel suggest that this fuel can be used as a fuel in diesel engines

SWOT Analysis for Electric Vehicles (EVs) in Thailand

Nowadays, transport activities are one of the major contributors to greenhouse gas (GHG) emission. It also causes air pollutants in major cities around the world as particulate matter (PM), carbon monoxide (CO) and carbon dioxide (CO2). Thai government has implemented numerous policies in reducing GHG emission of which Electric Vehicles are an interesting option. Electric vehicles (EVs) are interesting as a result of new technology they deploy, which can reduce GHG emission and friendly to the environment. This study, therefore aims to investigate EVs factors and their important by using SWOT analysis. We analyzed the strength, weaknesses, opportunities and threats related to EVs adoption in Thailand. We also established strategies for EVs adoption, via competition and attractive investment to entice local and international investors, gather and share information on countries that adopted EVs, encourage communities in discussion about EVs technology, smart grid designation, deploying well trained technicians, as well as EVs supporting policies and promotion. The result showed that policies on EVs in Thailand are concentrated on providing support to only manufacturers, entrepreneurs and importing car companies. While, the consumers support’ policies are given lesser importance. These ï¬ndings are important for the relevant authorities in Thailand in developing appropriate EVs policy for sustainable transportation

A novel multiport converter switching scheme to integrate multiple renewable energy sources

In this paper, an innovative switching scheme named simultaneous space vector modulation (SSVM) is proposed for integrating various AC sources in the energy industry using a unified multiport converter. The proposed SSVM technique is applied to the multileg topology of a multiport converter, which is an encouraging option for the grid integration of renewable energy sources and multimachine drives. Considering the shared leg in the multileg converter, the proposed SSVM can utilize the utmost simultaneous switching states between different ports, resulting in lower switching loss and better DC-link voltage utilization compared with the conventional sequential space vector modulation approach. A novel decision matrix concept is introduced to identify the simultaneous switching states. For this aim, according to the number of ports of the multileg converter, decision matrices containing valid simultaneous switching states are first calculated. Then, they are defined as look-up tables in the proposed SSVM to be retrieved and exploited in every sampling period. The effectiveness of the proposed SSVM for a seven-leg version of the multileg converter is assessed using the simulation analysis and real-time validation. The capability of the proposed SSVM-based multiport converter in grid integration of AC renewable energy sources is also verified considering two permanent magnet synchronous generator (PMSG)-based wind turbines with real wind speed patterns. The simulation results confirm that the proposed SSVM is properly able to manage the power flow between different ports and improve the DC voltage utilization and switching loss compared with the sequential SVM.Scopu

Renewable energy in Bangladesh: Status and prospects

© 2019 The Authors. Published by Elsevier Ltd. Global energy demand has risen sharply over the years with developing countries recording the greatest share in this trend. Biomass as an energy resource is mostly available locally and can easily be converted into secondary energy without huge capital investments. Nowadays, Bangladesh shares a percentage of renewable energy only 3% of total energy ratio, Bangladesh has already taken a master plan in the renewable energy sector. Whereas installed electricity generation installed capacity of Bangladesh rapidly increased to 13265 MW with captive generation capacity which is insufficient for fulfilling the demand of electricity of the nations. One-third of the power production of Bangladesh depends on expensive imported fossil fuel energy resources and 65% of power generation depends on a natural gas reserve of the country, though one day the reserve of current gas will be diminished. Moreover, inadequate electricity production leads the country in a un-industrialization. The present and future crucial energy crisis situation adapted by installing renewable power into electricity production. The current renewable energy agenda of Bangladeshi government force the specialization of renewable energy generation budget by decreasing global pollution with saving movement of biomass, solar, hydro, wind, and tidal power sector. This paper presents the currents national energy scenario of Bangladesh. According to this, the greater potentiality of renewable energy resources is also reviewed and presented in this paper

Investigation on producing silica from rice husk biomass

Intending to contribute with the valorization of rural squanders that present transfer issues and the utilization of sustainable power sources, was looked into the rice husk burning in climatic foaming fluidized bed reactor. The technique was to assess the air overabundance impact in the pipe gases and the powder attributes. It was resolved the gases organization (CO, CO2 and NOx) and portrayed theash produced (XRD, XRF). 40%excessair advances temperatures inside the reactor around 700°C with higher change efficienciesbut declining the nebulous silica capability of the fiery debris. Opposite conduct was confirm at 128% overabundance air. The pipe gases demonstrated relative inconstancy for each working condition. In the CO case, a normal grouping of 200 ppm was found (on a dry premise of 11% O2) for air overabundance somewhere in the range of 40.0% and 82.5%

Current stress and switching loss evaluation of a unified expandable power converter used for grid-integration of renewable energy sources

Due to the intermittent nature of the renewable energy systems (RESs), more specifically, solar panels and wind turbines, their sole use does not lead to a smooth and reliable power. To overcome this issue, the concurrent grid-integration of RESs to form a microgrid is reported. In the DC-bus microgrid, the produced power by RES is initially given to the shared DC-bus through an individual source-side converter and then transmitted to the utility via a common grid-side converter. By increasing the number of RESs, the number of required power converters, and therefore, the investment cost also increase. Using the cost-effective multi-input low-switch converters is a promising alternative to alleviate this significant need for individual converters. Recently, a nine-switch-based unified expandable power converter (UEPC) has been presented for concurrent integration of AC and DC sources with a tangible fewer switch count. This unified structure has been utilized in two configurations named AC-AC-AC and AC-AC-DC. In this paper, both configurations are evaluated and compared in terms of current stress and switching loss. Considering the current stress analysis, the best port for interfacing with the grid to lower the total current rating of power switching devices is also determined. The high-performance capability of both configurations is finally verified using MATLAB/Simulink.Scopu