Natural Gas

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  1. Natural Gas
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Despite the priority given to energy from renewable sources (known as white energy), natural gas plays a major role in the process of replacing hard coal, lignite and fuel oil with other fuels firing energy generators. The trend of replacing large heat generators with small ones and of turning to cogeneration results in customers' growing interest in natural gas as fuel. The objective of promoting electricity and heat cogeneration is to improve the air quality through reducing pollutant emissions and improving the energy efficiency of technological processes.

The significant emissions of gas and dust pollutants to the air in Poland are generated by not only the power sector and the manufacturing in general, but principally by the transport sector, which has been growing dynamically over recent years. Despite the reduced lead contents, the use of engine fuels in vehicles continues to be a problem, as their combustion generates significant quantities of airpolluting gases. Accordingly, for both environmental-protection related and economic reasons, it is important that various types of CNG-fuelled vehicles should be marketed, including passenger cars, buses and delivery vehicles. The use of the natural gas vehicle (NGV) technology (vehicles fuelled with CNG) enables a significant reduction of noxious components in vehicle exhausts in comparison with traditional fuels (e.g. carbon oxide and carbon dioxide emissions are lower than in the case of gasolines and diesel oils). Particularly low is the emission of noxious gases during engine start-up, because the NGV technology does not require fuel mixture enrichment during start-up. The ratios of exhaust emissions from CNG vehicles to emissions from gasoline-fuelled vehicles are as follows: from 60% to 80% in the case of CO, from 50% to 80% in the case of NOx, around 20% in the case of CO2 and around 85% in the case of NMHC (non-methane hydrocarbons). Please note that the completely airtight system of filling containers with CNG practically eliminates escape of vapours into the air during refuelling. 

Natural gas is an environment-friendly fuel. During engine operation, natural gas poses no environmental hazards, and the simple compounds generated during gas combustion, such as carbon dioxide and nitrogen dioxide are emitted into the air in quantities much lower than in the case of other fossil fuels.