Increasing the Efficiency of OEC with Use of Principle of Superposition and Thereby Increase Share of Wave Energy in Renewable Energy Resources

Author(s):  
Parekh Abhishek J.

The quest for new renewable resources is at pinnacle in recent times. We have majorly 3 approaches Viz. [1] Finding new type of renewable resource. [2]Increase the use of already available renewable resources. [3] Increase the efficiency of prime movers so as to increase net power output by available quantity of renewable resources. This paper throws the light on unique idea of integrating the principle of superposition of waves and WEC. WEC or Wave Energy Convertor is a type of prime mover which was devised by OCEANLINX based in Australia. It basically works on compression of air column due to water column. The main drawback of wave energy is that it cannot be used in areas where waves are short and possess less energy. The new idea projected in this paper mainly addresses this issue and thus imparting the power to nations whose geographical location offers them generally short waves. Now they can also generate green energy and thus pushing world towards achieving goals of sustainable development.

Author(s):  
P. Sridhar Acharya ◽  
P. S. Aithal

It is very much true that people living in most of the rural areas depend on renewable energy resources for their daily domestic requirements. They either get an interrupted power supply from the traditional commercial electric supply or in some cases where the people living in a remote location may not get the traditional supply due to the distance. The people in the rural area already started using renewable energy resources for their daily needs. But it is seen that most of the rural area are potential to use many forms of renewable energy resources. There is a major requirement in combining more than one form of such energy to fulfill the needs. This paper explains the different methods of production of energy using the renewable resource in the rural area and a model to combine them to use the energy efficiently. This model suggests the controller to be designed which will use the energy produced from renewable energy efficiently. This controller has a responsibility to avoid the energy from the traditional method as long as there is a supply of energy from renewable resources. The controller uses the traditional energy only when there is no alternative energy supply from renewable energy.


2017 ◽  
Vol 5 (1(SE)) ◽  
pp. 58-61
Author(s):  
D.P.Jesudoss Manohar ◽  
T. Jayaprakasam

India is facing an acute energy scarcity which is hampering its industrial growth and economic progress. Setting up of new power plants is inevitably dependent on import of highly volatile fossil fuels. Thus, it is essential to tackle the energy crisis through judicious utilization of abundant the renewable energy resources, such as Biomass Energy solar Energy, Wind Energy and Geothermal Energy. Apart from augmenting the energy supply, renewable resources will help India in mitigating climate change. India is heavily dependent on fossil fuels for its energy needs. Most of the power generation is carried out by coal and mineral oil-based power plants which contribute heavily to greenhouse gases emission. Solar Power a clean renewable resource with zero emission, has got tremendous potential of energy which can be harnessed using a variety of devices.


2020 ◽  
pp. 165-171
Author(s):  
Iryna Hryhoruk

Exhaustion of traditional energy resources, their uneven geographical location, and catastrophic changes in the environment necessitate the transition to renewable energy resources. Moreover, Ukraine's economy is critically dependent on energy exports, and in some cases, the dependence is not only economic but also political, which in itself poses a threat to national security. One of the ways to solve this problem is the large-scale introduction and use of renewable energy resources, bioenergy in particular. The article summarizes and offers methods for assessing the energy potential of agriculture. In our country, a significant amount of biomass is produced every year, which remains unused. A significant part is disposed of due to incineration, which significantly harms the environment and does not allow earning additional funds. It is investigated that the bioenergy potential of agriculture depends on the geographical distribution and varies in each region of Ukraine. Studies have shown that as of 2019 the smallest share in the total amount of conventional fuel that can be obtained from agricultural waste and products suitable for energy production accounts for Zakarpattya region - 172.5 thousand tons. (0.5% of the total) and Chernivtsi region - 291.3 thousand tons. (0.9%). Poltava region has the greatest potential - 2652.2 thousand tons. (7.8%) and Vinnytsia - 2623.7 thousand tons. (7.7%). It should be noted that the use of the energy potential of biomass in Ukraine can be called unsatisfactory. The share of biomass in the provision of primary energy consumption is very small. For bioenergy to occupy its niche in the general structure of the agro-industrial complex, it is necessary to develop mechanisms for its stimulation. In addition, an effective strategy for the development of the bioenergy sector of agriculture is needed. The article considers the general energy potential of agriculture, its indicative structure. The analysis is also made in terms of areas. In addition, an economic assessment of the possible use of existing potential is identified.


2013 ◽  
Vol 684 ◽  
pp. 680-685 ◽  
Author(s):  
Md. Shahinur Islam ◽  
Tausif Ali ◽  
Ahsan Uddin Ahmed ◽  
Syed Ashraful Karim ◽  
Hossain Mursalin

World climate change challenges and the world’s consistent growing demand for energy during the past decade have brought the need to explore for more renewable energy resources. The continuation of exploring green energy sources results Osmotic Power- a new emission-free source of sustainable energy that can be used to generate electricity. Osmotic power plant is only feasible in places where rivers flow out to the ocean. The leading virtue of osmotic power is that it would be capable to produce a steady and reliable supply of renewable base load power as an alternative of other variable sources like solar or wind. There are some hurdles to generate osmotic power. Developing suitable membrane and initial construction cost are top on of them. Though Osmotic power is years from commercial feasibility but researchers think that it could provide thousands of terawatts of base load power per year around the globe. This paper presents an overview of osmotic power generation system with the analysis of potential benefits and limitations of it.


Author(s):  
Leezna Saleem ◽  
Imran Ahmad Siddiqui ◽  
Intikhab Ulfat

Pakistan is the world's sixth most populous country, currently facing the worst energy crisis. Although rich in renewable resources, Pakistan's energy system relies mainly on fossil fuels and imported energy for its energy needs. This study aims to use an analytical hierarchy pro-cess to prioritize six renewable technologies for Pakistan, with four criteria and thirteen subcriteria. The results indicate that solar power is particularly well suited for Pakistan, as it gained 42% priority weightage in the final aggregation. Wind energy is ranked second with a priority weight of 24%, followed by hydro 13%, biomass 9%, ocean 8% and geothermal en-ergy 3%. Solar and wind energies accounted for nearly 66% of the total weightage. This result highlighted the significance of economic criteria for the selection of renewable technologies in Pakistan, with around 43% priority weightage. Environmental criteria gained 19% whereas socio-political criteria registered 14% and technical criteria 23% priority weightage. During the potential assessment of the research, it was concluded that although renewable resource development has not been allocated sufficient attention in Pakistan in the past, if the correct decisions are taken regarding the exploitation of these resources, this can remedy the country's hazardous dependence on fossil fuel and imported energy.


2017 ◽  
Vol 24 (1) ◽  
pp. 258 ◽  
Author(s):  
Zoi Christina Siamanta

Abstract Under the global rhetoric of 'the green economy' Renewable Energy Resources (RES) projects have proliferated across the world. This article examines the growth of photovoltaic projects in post-crisis Greece, grounded in a green energy discourse. The aim is to provide insights into how green economies are built and what new appropriations they (might) entail. It is based on a Foucauldian oriented discourse analysis, in depth semi-structured interviews and review of a variety of other sources. The article argues that justificatory discourses for green growth implicated in 'green grabbing' involve the complex interplay of neoliberal and disciplinary 'environmentalities.' These seek to construct 'green economy' entrepreneurs and compliant subjects. A relatively undocumented and understudied aspect of green grabs is the appropriation of public and private financial resources for photovoltaic projects, with significant negative impacts on livelihoods. In Greece, this has resulted in the accumulation of capital by a few large RES companies, as well as significant impacts on the livelihoods of domestic and small business electricity consumers and small/medium photovoltaic investors through debt. Key words: Greece, green economy, photovoltaics, green grabbing, environmentality, Foucault, green energy


2005 ◽  
Vol 9 (3) ◽  
pp. 15-23 ◽  
Author(s):  
Fajik Begic ◽  
Anes Kazagic

Along with the current processes of restructuring of Energy power system of Bosnia and Herzegovina, liberalization of the electricity market, and modernization of the existing power plants, Bosnia and Herzegovina must turn to the utilization of renewable resources in reason able dynamics as well. Respecting this policy, the initial Valuation of the potential of renewable erg resources in Bosnia and Herzegovina is per formed. The methodology of evaluation of wind energy utilization is presented in this paper, as well as some other aspects of utilization of the renewable energy resources in Bosnia and Herzegovina. Implementation of selected projects should improve sustainability of energy power production in Bosnia and Herzegovina, by reducing the total emission of carbon dioxide originated from energy power system of Bosnia and Herzegovina.


2021 ◽  

Abstract Industrial parks may be high pollutants of the local environment, but also engines of regional development, employment, and economic value added. To make them more sustainable, regional planning often purports to promote a transition to a greener approach, but in reality, many green measures oppose business logic and profitability, while those companies that do invest in sustainable solutions do so without having a clear strategy. This complicated setup is to be explored and modelled in this article which is focused on a remarkable area, the urban region of Székesfehérvár, an industrial city in Hungary having an impressive economic development and hosting significant domestic and international companies. The disharmony between greening policies, intentions and actions is observable in Székesfehérvár, despite the considerable local and regional potentials of renewable energy resources. Findings indicate that systemic thinking and future-oriented decision making will be necessary to achieve true sustainability, which also requires a mutually proactive attitude and the cooperation of different sectors. A legitimate strategy aiming at greening the local and regional economy (with renewable energy concerns), implemented by both public and business actors can be the key element of a successful transition. This strategy needs to be stimulated by local governance.


Author(s):  
Dinesh Kanvagiya

Abstract: Generating more Power are complex at cheaper cost, also continuous energy supplied are important Hydro power generation is one of the most successful renewable energy resources for the production electrical energy without any environmental hazard and presently it providing more than 86% of all electricity generated by renewable sources worldwide and accounts for about 20% of world electricity. To increase the percentage of green energy in account of world electricity generation the analysis must be performed to get the information about the working conditions of each component in plants so that the required maintenance action should be taken. Maintenance and operation of a hydro power plant is very complicated and the process to calculate and analyzing its compatibility and reliability is very important. In this work introducing a Markov model to evaluate the reliability parameter of THPS-I Sirmour, Rewa. For this work the operational data regarding failure and maintenance time taken to repaired and analysis of all parts of generating unit of the power plant for period of 2010-2015 is considered. The availability and reliability of individual unit of power plant is evaluated by taking into account different reliability Parameters, namely failure rate (λ), repair rate (µ), MTTR, MTTF, MTBF through the collected data and tabulating the required information for the analysis. By this analysis work we can improve reliability of all the components of each unit of power plant. The sub-unit that is commonly failed during operation is like- penstock, butter fly valve, spiral case, turbine, generator, excitation system, speed governor etc. Reliability plays a key role in the cost-effectiveness of systems Keywords: Hydro power plant, Reliability evaluation, Reliability parameters, Markov analysis, Total schedule outage hrs and Total forced outage hrs.


2018 ◽  
Vol 67 ◽  
pp. 03010
Author(s):  
Sunaryo Sunaryo ◽  
Fahmi Yusro

Indonesia with its more than 17,000 islands and its geographical location as tropical country is blessed with many marine tourism destinations such as beautiful beaches and coral reefs, coastal community culture etc., in fact tourism is ranked as 3rd highest foreign income. On the other hand Indonesian government is also committed to promote the use of environmentally friendly new and renewable energy as an alternative to the fossil fuel which highly contribute to the air pollution. In conjunction with government’s program in developing the marine tourism and in using green energy, the research is aimed to design solar powered recreational boat for tourism in Indonesia. The paper is focused on the design of the boat structure such as the hull type, the environmental friendly material for the boat hull, the arrangement of the boat that would suitable to be powered with solar energy etc. For this purpose references are obtained from literature study, experts’ opinion, and previous experiments.


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