An advanced numerical investigation has been carried out in order to study the effect of multiple injection strategies on Caterpillar heavy-duty diesel engine emissions. Both different injected fuel percentages for each pulse and several dwells between main and post phase were investigated via...

Coal sludge is a by-product of coal washing, whose production is huge. Burning it in Circulating Fluidized Bed (CFB) boiler can both recover the heat and reduce the pollution. However, the combustion performances of CFB boilers burning coal sludge are generally not high because the particle size...

The objective of the contribution, which is based on the research of National agency for agricultural research (NAZV QH 71016) carried out between 2007 and 2010, is to present research concept of energy and economic analysis of farms. The core idea behind the concept rests in a need to assess an...

The objective of the contribution, which is based on the research of National agency for agricultural research (NAZV QH 71016) carried out between 2007 and 2010, is to present the initial energetic and economic situation of the Czech agriculture. Based on the published data, the position of the...

The imbalance between energy resource availability, demand, and production capacity, coupled with inherent economic and environmental uncertainties make strategic energy resources planning, management, and decision-making a challenging process. In this paper, a descriptive approach has been...

Combustion trials were conducted with corn stover (CS) and wheat straw (WS) round bales in a 176-kW boiler (model Farm 2000). Hot water (80 °C) stored in a 30,000-L water tank was transferred to a turkey barn through a plate exchanger. Gross calorific value measured in the laboratory was 17.0...

If run under stoichiometric air–fuel ratio a Diesel engine could use a simple three way catalyst for NOx after-treatment instead of complex and expensive devices. This concept of Stoichiometric Diesel Combustion (SDC) has been experimentally tested on a modern automotive Diesel engine....

We investigate the impacts of electricity market restructuring on fuel efficiency, utilization and, new to this area, cost of coal purchases among coal-fired power plants using a panel data set from 1991 to 2005. Our study focuses exclusively on coal-fired power plants and uses panel data...

We describe the determinants of energy intensity, carbon intensity, and CO2 emissions in the German manufacturing sector between 1995 and 2007, applying the LMDI index decomposition technique not to aggregate but to micro data. We trace back changes in total CO2 emissions from manufacturing to...

In this article we demonstrate how challenging greenhouse gas reduction targets of up to 95% until 2050 can be achieved in the German electricity sector.1 In the analysis, we focus on the main requirements to reach such challenging targets. To account for interdependencies between the...