GasolineBi-fuelEfficiencyEmissionsThe combustion characteristics of hydrogen compared to gasoline offer the potential of an increased engine efficiency, especially at part load. Here, results are presented of the brake thermal efficiency of a bi-fuel hydrogen/gasoline engine, at several engine speeds ...
(liquid vs. gaseous). Nevertheless, it is still a good deal more complex and energy-intensive to transport and store hydrogen than it is for gasoline or diesel. In contrast to fossil fuels, though, hydrogen can be produced anywhere there is access to electricity and water, even directly at...
Fuel cells vs. batteries In a hydrogen drive with fuel cells, fuel in form of hydrogen and oxygen is continuously supplied to the cell block, similar to the supply of gasoline or diesel fuels in internal combustion engines. Batteries for driving electric motors, on the other hand, differ in ...
Hydrogen offers several advantages over traditional fossil fuels. It can be produced from water, making it almost inexhaustible. Hydrogen combustion is clean, with water being the only byproduct, compared to the CO2and other harmful emissions from gasoline or diesel. The main challenge for hydrogen...
Tests have shown that vehicles equipped with hydrogen tanks are significantly less dangerous in the event of accidents than those with gasoline tanks. So we can forget the myth of rolling “explosive canisters.” Subscribe to our Trendletter ...
However, hydrogen combustion engines are less efficient than gasoline combustion engines, with a thermodynamic efficiency of around 20%–25% [29]. This is due to the fact that hydrogen has relatively a low volumetric energy density. Besides, when combusting hydrogen, nitrogen oxides are emitted ...
The short-term fix is to get better fuel efficiency from existing cars. In the longer term, the solution may be to switch vehicles over from gasoline engines and diesel to battery electricity and electric fuel cells, which are a bit like batteries powered by hydrogen gas that never run flat...
28、have worked on developing technology that would allow fuel cell cars to continue using gasolineA “reformer on the fuel cell car would convert the gasoline to hydrogen onboard the automobileFunding for this technology has been pulled due to unsatisfactory efficiencyHow will the hydrogen be store...
However, putting such a chemical plant on a vehicle pushes the limits of the technology and compromises the overall energy efficiency. To reform gasoline to the desired mixture of H2and CO2requires several catalysts and an operating temperature of 700 °C. This temperature need be only 400 °C...
They found the highest theoretical conversion efficiency in gasoline, but biodiesel was in the same range (1% lower on average), depicting its feasibility for in-line reforming with fuel cells [57]. In a different study, biodiesel reforming has been simulated and tested in a heat-integrated ...