نتایج جستجو برای: thermal coal and different renewable energy resources including hydropower

تعداد نتایج: 17123058  

Journal: :محیط شناسی 0
داوود منظور دانشیار دانشکدۀ اقتصاد، دانشگاه امام صادق مجید فرمد دکتر مهندسی برق، دانشگاه تهران، دانشکدۀ مهندسی برق وحید آریان پور کارشناس ارشد انرژی، دانشگاه صنعتی شریف، دانشکدۀ مکانیک احسان الدین شفیعی دکتر مکانیک، دانشگاه صنعتی شریف، دانشکدۀ مهندسی مکانیک

introduction despite the abundant renewable energy sources, the iranian energy sector relies almost entirely on fossil fuel energy resources. power sector is dominant source of co2emissions and responsible for about 35% of total co2 emissions in the country. additionally, long-term electricity demand of iran is expected to grow quickly, which in turn requires extensive investment to meet the gr...

2008
Balbir Singh Mahinder Singh Fauziah Sulaiman

The focus on renewable energy in Malaysia gained momentum with the active involvement of the government and the private sector. This move can potentially help in diversifying the country's energy options besides relying on oil, natural gas, coal and hydropower. The scope of this paper is to look at the designing procedures of a solar thermal cylindrical parabolic trough concentrator (CPTC) by s...

Renewable energy provides twenty percent of electricity generation worldwide. Hydroelectric power is the cheapest way to generate electricity today. It is a renewable source of energy and provides almost one-fifth of electricity in the world. Also, it generates electricity using a renewable natural resource and accounting for six percent of worldwide energy supply or about fifteen percent of th...

2011
Ahmet Sarucan M. Emin Baysal Cengiz Kahraman Orhan Engin

Energy resources are classified as renewable and non-renewable in general. Non renewable energy resources have been exhausted gradually. Renewable energy resources such as wind power, hydropower, geothermal power, solar power and photovoltaic power have importance more than ever before. But, researchers are looking for selections of renewable electricity generation as it is a technological prob...

Journal: :Int. J. Computational Intelligence Systems 2010
Cengiz Kahraman Ihsan Kaya Selçuk Çebi

Renewable energy is the energy generated from natural resources such as sunlight, wind, rain, tides and geothermal heat. Turkey has a great renewable energy potential with its natural resources such as biomass, geothermal, hydropower, solar, and wind. Selection among energy alternatives is a multicriteria decision-making problem with conflicting and interactive criteria. In this paper, the best...

2007
Johannes Lehmann

© The Ecological Society of America www.frontiersinecology.org T energy demands of modern societies are steadily increasing. Today, much of this demand is satisfied by fossil fuels, such as gas, oil, and coal, energy resources that are not renewable, and which will eventually be exhausted. The first glimpse of the energy crisis to come has been the price increases at the gas station. Additional...

2009
Jie Cai Alemayehu Gebremedhin

Today, with the great development of science and technology, it seems to be more and more important to develop renewable energy sources. In this thesis, I would like to introduce something about Chinese water resources. The renewable energy sources can generate electricity. Furthermore, hydropower is the most often used energy in the world. Hydropower develops quickly in recent years in China a...

Journal: :iranian economic review 0
eisa maboudian department of economics, islamic azad university, central tehran branch, iran khashayar seyyed-shokri department of economics, islamic azad university, central tehran branch, iran.

abstract i n this paper we investigated total energy consumption and its individual forms (oil, natural gas, electricity, renewable energies and coal) relationship with real gross domestic product (gdp) in iran. we employed hsiao’s (1981) methodology and annual data which cover 1967-2010 for investigation. the empirical findings indicate there is bidirectional causality effect with real gdp and...

احمدیان, محمد, آقا شفیعی, محمد , ابوالقاسمی, معین , مرادی دالوند, محمد , نامور بهرغانی, بهنام ,

The micro-turbines can be used to supply both thermal and electrical energy demands of islanded microgrid. Depleting fossil fuels and ever-increasing environmental concerns have attracted much attention to the renewable energy resources. Meanwhile, the stochastic nature, non-compliance with the load, inability to meet the thermal load and high cost of the wind and solar resources are disadvanta...

The industry development and the life standards increment have caused the human feels more easement, but it also has caused an increase of energy consumption, environmental pollution and the large volume of greenhouse gases emission. Those changes make the researchers to find out the alternative energy sources such as renewable energies. The most prominent and the oldest source of clean and re...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید