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Engine bells must be cooled to avoid damage from the hot rocket exhaust, and this has presented problems in expanding nozzle designs. The cooling is normally accomplished by running either the oxidizer or fuel (in the case of LH2 fueled engines) through tubing in the bell. With the bell moving, plumbing carrying the coolant to the bell has to ...
Hydrogen fuel enhancement from electrolysis (using automotive alternators) has been promoted for use with gasoline-powered and diesel trucks, [14] [15] [16] although electrolysis-based designs have repeatedly failed efficiency tests and contradict widely accepted laws of thermodynamics (i.e. conservation of energy). Proponents, who sell the ...
However, this effect occurs only over a narrow engine speed band. A variable intake can create two or more pressurized "hot spots", increasing engine output. When the intake air speed is higher, the dynamic pressure pushing the air (and/or mixture) inside the engine is increased.
The LEVC TX London taxi was launched in 2017 and features a 33 kWh battery that is charged by a 1.5-litre gasoline engine. [35] The Li Auto One is a large SUV which combines a 41-kWh battery with a small 1.2-litre gasoline engine. [36] [37] This approach has also been used for heavy vehicles, such as Wrightbus's Gemini 2 [38] and New ...
Cons. You have to meet approval requirements and qualifications. Applying for a loan can be time-consuming and delay the start of your project. The interest you pay can significantly increase the ...
In the UK Clarke Energy is a leading supplier of landfill gas generation equipment, in Australia for Coal Mine gas engines and in France for natural gas cogeneration units. [14] The company has worked on pioneering projects including the supply of the first GE biogas engines into sub-Saharan Africa near Lake Naivasha in Kenya [ 15 ] and ...
Compared to a pressure-fed engine, pump-fed engines and hence, expander cycle engines have higher combustion chamber pressures. Increased combustion chamber pressures allow for a reduced throat area A th , and therefore, leads to a larger expansion ratio, e = A e /A th for an identical nozzle exit area A e , which ultimately leads to higher ...
Jenbacher manufactures the gas engines from the ground-up at this facility, including in-house crankshafts. Jenbacher gas engines are exclusively Otto cycle units with industrial grade spark plugs providing ignition. Smaller models utilize stoichiometric combustion, while the larger engines are lean burn engines with prechamber ignition ...