The present work describes the development of a fast control-oriented semi-empirical model that is capable of predicting NOx emissions in diesel engines under steady state and transient conditions. The model takes into account the maximum in-cylinder burned gas temperature of the main injection,...

Referring to the national environmental protection standard of PR China, HJ479-2009, NOx emissions and the effect of 45# carbon steel (1045, ASTM) on it in thermal energy storage (TES) process of binary molten nitrate (BMN) salts (a eutectic salt mixture named as solar salt with the component of...

The effects of the use of low biodiesel blends in performance, fuel consumption and NOx emissions was investigated during tests carried out with a Renault Megane 1.5dCi equipped with recent injection and exhaust emission control technologies. To accomplish this goal, several tests were performed...

District heating (DH) systems, together with combined heat and power (CHP) plants, have been increasing both in number and interest over the last decade, but the environmental improvements are still controversial, because although there is usually a reduction in CO2 emissions, a positive effect...

The federal government now confronts considerable political pressure to add CO2 to the existing set of criteria air pollutants. As with current criteria pollutants, proposals call for control of CO2, assuming that the control of each of the three criteria pollutants is separable from the others....

A deep-air-staging combustion technology was previously developed to achieve reduction in NOx emissions and to eliminate strongly asymmetric combustion found in down-fired boilers. Recently, one of two down-fired 600MWe supercritical utility boilers using this technology (without applying...

Industrial experiments were performed for a retrofitted 660-MWe full-scale arch-fired boiler. The ignition position of the primary air/fuel mixture flow, furnace temperature and flue gas component after the air heater were measured with different anthracite ratios at loads of 660- and 380-MWe....

A novel emulsion fuel with 82.4% diesel, 5% water and 12.6% nano-organic additives by volume is introduced in this work. Unlike other emulsion fuels (milky in color) developed around the world, it is green in color and very stable. The performance and emissions of the diesel engine fueled by the...

Different Exhaust Gas Recirculation (EGR) system architectures have been evaluated by means of both experimental tests and numerical simulation; in addition to the experimental tests, a one-dimensional fluid-dynamic engine model has been built in order to assess the potential of a Dual Loop (DL)...

We present a proof-of-concept analysis of the measurement of the health damage of ozone (O3) produced from nitrogen oxides (NOx = NO + NO2) emitted by individual large point sources in the eastern United States. We use a regional atmospheric model of the eastern United States, the Comprehensive...