Gas

compression, de 30 à 55 bar, de même qu’une température très élevée de 700 à 900° C. En fin de course de compression, du gas-oil, finement pulvérisé, est injecté sous forte pression. Par l’apport des premiers éléments du gas-oil, le mélange combustible se forme à l’intérieur du cylindre. Le gas-oil s’enflamme spontanément (auto-allumage) au contact de l’air surchauffé. L’injection du gas-oil se produit en avance par rapport au PMH (avance à l’injection, AI = 20 à 30° rotation de vilebrequin). Cette

demand is increasing and to respond to this demand, China has to import from other country. This shows the T energy independence of the China for the oil energy so the price for oil and therefore electricity depend on other country. - Gas : In China, gas are mainly use for fertilizer plants and only 13% of the domestic production is used for the electricity generation. - Hydroelectricity : Hydroelectric energy represented only 6% of China’s primary energy consumption in 2005. But this

Company and Scottish and Southern Energy (SSE) are two renounced companies in the UK energy industry. Their main products are such as: supplying energy to home and to business, providing home and energy services, generating electricity and producing gas, buying, storing and selling energy international. However, Centrica is bigger than Scottish and Southern Energy in term of size and capital investment. The main market of Scottish and Southern Energy is in United Kingdom, which account for 99% of its

if oil production remains constant until it's gone, there is enough to last 42 years. It was estimated by the Energy Information Administration (EIA) that in 2006 primary sources of energy consisted of petroleum 36.8%, coal 26.6%, natural gas 22.9%, amounting to an 86% share for fossil fuels in primary energy production in the world while non-fossil sources such as hydroelectric 6.3%, nuclear 6.0%, and (geothermal, solar, tide, wind ) accounted for a meager 0.9 percent. Fossil fuels

downstream and a chemistry. Organizational structure analysis: The strategic fields of activity o Upstream: it’s about all the activities in contact with the research for oil and natural gas, as well as the exploitation of the oil and gas fields. Downstream: this sector counts all the refineries of the Group, gas stations, marketing, trading and shipping. It manages the sea transport when it’s made by tankers from Total. Actually it’s the sector in crisis in Europe. Chemistry: the chemistry is represented

many possible wedges, including improvements to energy efficiency and vehicle fuel economy (so less energy has to be produced), and increases in wind and solar power, hydrogen produced from renewable sources, biofuels (produced from crops), natural gas, and nuclear power. There is also the potential to capture the carbon dioxide emitted from fossil fuels and store it underground—a process called "carbon sequestration." In addition to reducing the gases we emit to the atmosphere, we can also increase

national governments and the international community to work together to forge a way forward." The report out forward some recommendations to reduce the affect of climate change poor countries. The recommendations include: reduction of greenhouse gas emissions, immediately providing money and technical support by rich countries to help poor communities to adapt to the climate change that is already happening. It said, "Child-centred disaster risk reduction (DRR) should be recognised as a corner

La economia peruana es una de las mas dynamicas de america latina, gracias a un crecimiento fuerte de los 5 ultimos años. La expansion economica fue empujada por la construccion, la explotacion minera, los inversiones (sobre todo el proyecto del gas natural de Camisea), la demanda domestica y los exportaciones. A contrario de sus vecinos latinos-americanos, como Brasil y Argentina, El Perù no ha sufrido de la devaluación, gracias a una gran vigilancia al nivel de la politica monetaria y a la stabilidad

construcción de pozos petrolíferos que se encuentran por debajo de los 400 metros bajo el nivel del mar. Petrobras, al ser una empresa integrada, realiza actividades que van desde la exploración de petróleo y gas, producción, transporte, refinación, comercialización de distribución de petróleo, gas y sus derivados, hasta la generación, transporte y distribución de energía eléctrica. Turismo [editar] Artículo principal: Turismo de Brasil Brasil es uno de los países que más reciben turistas en América

sécheresse | |Las consecuencias nocivas en la salud / la santé |Los incendios forestales - el deshielo de los glaciares / la fonte | |El peligro de los rayos ultravioleta - un gas peligroso (dangereux)- el |des glaciers | |peligro - el riesgo/ le risque |El terremoto / le tremblement de terre - |