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Compressed natural gas (CNG) is a fuel gas mainly composed of methane (CH 4), compressed to less than 1% of the volume it occupies at standard atmospheric pressure.It is stored and distributed in hard containers at a pressure of 20–25 megapascals (2,900–3,600 psi; 200–250 atm), usually in cylindrical or spherical shapes.
Many new power plants utilize CCGTs. Stationary CCGTs burn natural gas or synthesis gas from coal. Ships burn fuel oil. Multiple stage turbine or steam cycles can also be used, but CCGT plants have advantages for both electricity generation and marine power. The gas turbine cycle can often start very quickly, which gives immediate power.
2006: Westport HD Engine and LNG Fuel System for heavy-duty trucking applications was launched. The HPDI technology is based on the 15-litre Cummins ISX but is adaptable to other OEM engines as well. 2008: Westport formed a joint venture with Weichai Power, China's largest heavy-duty engine manufacturer, and Hong Kong Peterson (CNG) Equipment ...
When burning natural gas as a fuel, this basic configuration has been modeled to achieve an efficiency up to 60% (LHV) as a power cycle net of all parasitic loads, including the energy-intensive ASU. Despite its novelty, the components required by this cycle are commercially available, with the exception of the combustion turbine package.
[12] [13] In 2019, the propane engine was enlarged to a DriveForce-branded 8.8 L, [14] supplied by Power Solutions International, [15] which had acquired Powertrain Integration in 2015. [16] In 2016, a compressed natural gas (CNG) variant of the Saf-T-Liner C2 was released.
Shares of natural gas fueling station-builder Clean Energy Fuels (NAS: CLNE) have soared recently, up about 25% in the last week. On Monday, the company announced it had signed a 10-year contract ...
For power generation applications, the investment costs are cheaper than combined cycle combustion turbine plants (in 2003, the Energy Information Administration estimated that the cost of a combined cycle plant was US$500–550/kW, as opposed to the SCCT cost of US$389/kW [1]), but at reduced efficiency. SCCTs require smaller capital ...
An important part of traditional engine design is designing the cylinders, compression ratios, and fuel injectors such that pre-ignition is avoided, [46] but at the same time as much fuel as possible can be injected, become well mixed, and still have time to complete the combustion process during the power stroke. Natural gas does not auto ...
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