نتایج جستجو برای: fossil fuel prices

تعداد نتایج: 129157  

ژورنال: انرژی ایران 2020

Growing demand for electricity and the reduction of fossil fuels have made it essential to consider alternative and renewable energy sources, such as solar and wind, to generate electricity. In this paper, by computing levelized output energy cost and levelized cost of electricity, the prices of electricity generated from the different combined cycle, wind, and photovoltaic power plants are com...

2012
Natália Deus de Oliveira Olga Lima Tavares Machado

Population growth, industrialisation worldwide and the consequent increase in the use of fossil fuels such as petroleum contribute to the advancement of environmental damage. Burning fossil fuels releases carbon dioxide (CO2) into the atmosphere, which contributes to an increase in the earth's greenhouse effect and climatic change (Balat & Balat, 2010). Factors such as increased demand for ener...

2012
Yanshan Yu Jin Yang Bin Chen

The concept of the smart grid has been gaining more and more attention worldwide since it was proposed by the U.S. Electric Power Research Institute in 2001. Recently, it has been propelled again by the promotion of low carbon economies in developing countries. To satisfy the exponential increase in electricity demand and alleviate environmental degradation caused by fossil fuel-based power gen...

2017
Kevin J. Warner Glenn A. Jones

In December 2015 the nations of the world agreed, in principle, to limit global warming to no more than 2 ◦C above pre-industrial levels. In order to achieve this goal, recent publications have shown that (1) more than 50% of known fossil fuel reserves need to remain unused, and (2) the timing of the transition away from fossil fuels needs to achieve 50% renewable energy by 2028, an expansion o...

2012
O. Alsayegh

The electricity and potable water production sector in Kuwait depends solely on oil and gas fired generation technologies. Complete reliance on oil and gas has negative impact on the country's economy and environment, and hence, calls for exploration for alternative energy sources. This paper presents results of analysis of including renewable energy technologies within the generation inventory...

2015
Celia E. S. Luterbacher Jeremy S. Luterbacher

The good thing about fossil fuels is that they are very energy dense, i.e., they contain a lot of energy per unit of volume. This means that fossil fuels are very good at powering cars and generating heat. The not-so-good thing about fossil fuels is that the earth has a limited amount of them. Because fossil fuels take millions of years to form, we will eventually use them up before more are ma...

2017
Thomas Lee Richard Ling RICHARD LING

Journal: :Global and planetary change 1992
J C Walker J F Kasting

We develop a numerical simulation of the global biogeochemical cycles of carbon that works over time scales extending from years to millions of years. The ocean is represented by warm and cold shallow water reservoirs, a thermocline reservoir, and deep Atlantic, Indian, and Pacific reservoirs. The atmosphere is characterized by a single carbon reservoir and the global biota by a single biomas...

Journal: :Asia Pacific journal of clinical nutrition 2009
Yue-Wen Wang

The food security issue was addressed by the development of "modern agriculture" in the last century. But food safety issues and environment degradation were the consequences suffered as a result. Climate change has been recognized as the result of release of stored energy in fossil fuel into the atmosphere. Homogeneous crop varieties, machinery, pesticides and fertilizers are the foundation of...

Journal: :Perspectives in biology and medicine 2010
Antonia Demas Dana Kindermann David Pimentel

In light of the rise in childhood obesity rates and the influence of the food system on fossil fuel use, this article analyzes current school meals in Baltimore and makes suggestions for school meal reform based on both childhood nutrition and environmental resource use. The nutrient content and estimated energy costs of a typical school lunch are compared with a proposed alternate meal. The st...

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