نتایج جستجو برای: diesel fraction
تعداد نتایج: 167734 فیلتر نتایج به سال:
OBJECTIVES Diesel exhaust is a common air pollutant made up of several gases, hydrocarbons, and particles. An experimental study was carried out which was designed to evaluate if a particle trap on the tail pipe of an idling diesel engine would reduce effects on symptoms and lung function caused by the diesel exhaust, compared with exposure to unfiltered exhaust. METHODS Twelve healthy non-sm...
The production of synthetic fuels from alternative sources has increased in recent years as a cleaner, more sustainable source of transport fuel is now required. The European Commission has outlined renewable energy targets pertaining to transport fuel which must be met by 2020. In response to these targets Ireland has committed, through the Biofuels Obligation Scheme of 2008, to producing 3% o...
Biodiesel is one of the promising renewable, alternative and environmentally friendly biofuels that can be used in diesel engine with little or no modification in the engine. In the present study an experimental investigation has been carried out on the combustion and performance characteristics of a CI engine running with biodiesel under steady state operating conditions. The experimental work...
The main objective of this work is to select the optimum city from five touristic Egyptian cities (Luxor, Giza, Alexandria, Qena and Aswan) to establish an environmentally-friendly tourist village. The selection of the city, according to the economic cost (cost of energy (COE), net present cost (NPC)) and the amount of greenhouse gases (GHG) emitted, is carried out with respect to four cases, b...
1 Mechanical Engineering Department Ambrose Alli University, Ekpoma, Edo State, Nigeria. 2 Mechanical Engineering Department Delta State Polytechnic, Ogwashi-Uku, Delta State, Nigeria. Corresponding Author: O. Obodeh __________________________________________________________________________________________ Abstract The techno-economic effects of diesel-kerosene blends on the operation of a dire...
BACKGROUND Diesel exhaust exposure may cause acute irritant-induced asthma and potentiate allergen-induced asthma. There are no previous reports of occupational asthma due to diesel exhaust. AIMS To describe occupational asthma with latency in workers exposed to diesel exhaust in bus garages. METHODS The Shield database of occupational asthma notifications in the West Midlands, UK, was sear...
OBJECTIVE To biodegrade the diesel pollution in aqueous solution inoculated with Mycobacterium and filamentous fungi. METHODS Bacteria sampled from petroleum hydrocarbons contaminated sites in Karamay Oilfield were isolated and identified as Mycobacterium hyalinum (MH) and cladosporium. Spectrophotometry and gas chromatography (GC) were used to analyze of the residual concentrations of diesel...
a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...
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