If society is to meet its objective of sustainable growth, then issues relating to energy conservation and environmental stewardship need to be in the forefront of engineering concerns. It has been proposed that both energy efficiency and the environment can be improved by switching to hydrogen as an energy carrier in our economy. While production of hydrogen introduces some environmental and c...

The high efficiency of diesel engines, their low operating costs, high durability and reliability have provided them with a leadership role in the heavy-duty vehicle market. Recently, diesel engines also achieved a growing share of the light-duty vehicle market, especially in those areas where fuel costs are high. This trend of growth of the diesel market requires a careful evaluation of the re...

500 million tons of coal fly ash are produced worldwide every year with only 16% of the total amount utilized. Therefore, potential applications using fly ash have both environmental and industrial interests. Unburned carbon concentration measurements are fundamental to effective fly ash applications. Current on-line measurement accuracies are strongly affected by the mineral content and coal r...

Emissions from flares typical of those found at oil-field battery sites in Alberta, Canada, were investigated to determine the degree to which the flared gases were burned and to characterize the products of combustion in the emissions. The study consisted of laboratory, pilot-scale, and field-scale investigations. Combustion of all hydrocarbon fuels in both laboratory and pilot-scale tests pro...

The reduction of automotive exhaust emissions has been one of the hottest topics in catalysis community since 1970s. Thanks to the development of three-way catalysts, main auto-exhaust pollutants, such as carbon monoxide, nitrogen oxides and unburned hydrocarbons, can be removed simultaneously. Nowadays, diesel engines and lean-burn engines become more and more popular due to their high fuel-ef...

Experimental data for Wankel rotary engine performance on hydrogen blends with hydrocarbon fuel is presented. Researches are performed partial loads and idle. Hydrogen mass fraction additions to the mixture didn’t exceed at 5% idle mode 9%. The excess air ratio was stoichiometric. It shown that (20% of full load) speed 2000 per minute addition yields 4.2% decrease brake specific consumption (hy...

Timber harvesting, with and without prescribed slash ®re, and wild ®re are common disturbances in pine forests of western North America. These disturbances can alter soil nitrogen (N) pools and N supply to colonizing vegetation, but their in ̄uence remains poorly understood for many forests. We investigated the effects of clear cut harvesting and ®re on KCl extractable N pools, net N mineralizat...

In this era of depleting fossil fuels, alternative fuels and their study has gained much importance. One the methods using is operating IC engines in dual fuel mode. This review an attempt to highlight investigations on HHO gas supplemented combustion internal engines, particularly diesel operated ones. better burning characteristics than pure hydrogen since, oxygen does not attain diatomic sta...

With increasingly stringent emission and fuel consumption regulations, additives have been proved to a huge role in energy conservation reduction, new type of additive based on nitroparaffin has received worldwide attention. An experimental study was conducted with the aim developing an understanding additive’s effect 1.5L naturally aspirated PFI gasoline engine’s power performance, economy, em...