Experiments were conducted to evaluate the performance of a low heat rejection (LHR) diesel engine. Performance parameters and emission levels were determined at various magnitudes of brake mean effective pressure. Combustion characteristics of the engine were measured with TDC (top dead centre) encoder, pressure transducer, console and special pressure-crank angle software package at peak load...

In this study the performance and emissions characteristics of a heavy-duty, direct injection, Compression ignition (CI) engine which is specialized in agriculture, have been investigated experimentally. For this aim, the influence of injection timing, load, engine speed on power, brake specific fuel consumption (BSFC), peak pressure (PP), nitrogen oxides (NOx), carbon dioxide (CO2), Carbon mon...

THERE is a growing interest worldwide in using alternative fuels, motivated by the potential benefits they can offer regarding emissions and energy security. Among the alternative fuels, natural gas has received special attention due to its vast proven reserves across the world. On the other hand, the composition variation of natural gas poses a challenge for the conventional lookup table-based...

• The influence of natural gas direct injection on gasoline port engine is investigated. CO and 2 emissions reduced when R CNG increased. RI decreased by 88.6 % for = 100 CR 12.5 compared to pure gasoline. Addition 25 the knock occurrence significantly. unique properties (NG), including high availability lower cost with other fossil fuels, make it attractive in internal combustion (ICE) applica...

Abstract Current particle number (PN) emission limits set by regulation, involve counted particles with a dimension >23 nm. The measurement procedure is specified and involves the dilution of exhaust gas in so-called constant volume sampling (CVS) device. Research efforts are concentrating further development existing techniques order to capture smaller down 10 nm, given their higher health thr...

according to the global fuel crisis, it seems necessary to use alternative fuel instead of gasoline. since the natural gas is cheaper, have higher frequency than gasoline and less pollution, it is a suitable fuel. many efforts have been done in order to replace gasoline with natural gas. one of the methods is to inject natural gas and gasoline fuel simultaneously and to use the benefits of both...

Compressed natural gas (CNG) and liquefied petroleum (LPG) are included in the group of promoted transport fuel alternatives for traditional fossil fuels Europe. Both CNG LPG fueled vehicles believed to have low particle number mass emissions. Here, we studied solid (SPN) emissions >4 nm, >10 nm >23 bi-fuel applying CNG, gasoline laboratory at 23 °C sub-zero (−7 °C) ambient temperature...

increase of environmental pollution and restricted emission legislations have forced companies to produce automobiles with lower air pollutants. in this respect, discharge of blowby gases into the environment has been prohibited and their recirculation into the combustion chamber is proposed as an alternative solution. in addition, using egr technique to control and reduce nitrogen oxides in in...