نتایج جستجو برای: fuel effect
تعداد نتایج: 1701913 فیلتر نتایج به سال:
T R I B O L O G Y & L U B R I C A T I O N T E C H N O L O G Y W W W . S T L E . O R G wide range of approaches have been undertaken to determine how to reduce emissions from automotive engines. in a previous TLT article, the development of the homogeneous charge compression ignition (hCCi) engine was discussed. When used in place of a conventional gasoline engine, an hCCi engine can produce a 1...
BACKGROUND Reducing automobile dependence and improving rates of active transport may reduce the impact of obesogenic environments, thereby decreasing population prevalence of obesity and other diseases where physical inactivity is a risk factor. Increasing the relative cost of driving by an increase in fuel taxation may therefore be a promising public health intervention for obesity prevention...
The boiler is one of the most vulnerable parts of a power plant, which is responsible for producing steam for moving turbines. In order to increase the thermal efficiency of the power plant, it is necessary to prevent heat loss in the boiler combustion chamber and simultaneously control the environmental pollutant parameters such as NOx and CO. Failure to control environmental pollutants will...
According to the declining trend of fossil fuel resources and the need to use renewable energies, appropriate research should be conducted for technical and functional studies in this regard. Therefore, in this research, a tubular PEM fuel cell as a suitable energy source with three-dimensional geometry has been numerically simulated and investigated. For a comprehensive study, the equations o...
petition for glucose may significantly effect overall fuel econ orny. With the exception of isolated case reports in patients with hypoglycemia who were receiving exogenous glucose infu sions (12, 13), lactate production has not been directly meas ured, to our knowledge, in a homogeneous group of cancer patients with a common solid tumor. We have measured rates of lactate production and disposa...
One of the solutions to reduce pollutants and increase engine power is to use water spray in internal combustion engines. In this type of engine, fuel and water sprays play an important role in engine performance. In this regard, the purpose of this study is to accurately simulate fuel and water sprays and provide optimal coefficients to achieve the best simulation results. For this purpose, th...
In this study, the effect of second injection timing on the combustion and emissions characteristics of a direct injection HCCI gasoline engine was investigated by using ethanol and methanol blended gasoline fuel. For this aim, a diesel engine was converted to an electronically controlled HCCI gasoline engine. The injection timings and fuel quantity for each injection were adjusted to get desir...
OBJECTIVES We investigated whether exposure to biomass fuel is a potential risk factor for chronic bronchitis and asthma among females in rural area in Van (east Turkey). METHODS The effect of indoor pollution producing various respiratory symptoms was studied in 177 females. Of these, 90 were those who used biomass fuel and 87 were nonusers of biomass fuel. A part of the European Community R...
BACKGROUND Air pollution is known to cause respiratory disease. Unlike motor vehicle sources, fuel-fired power plants are stationary. OBJECTIVE Using hospitalization data, we examined whether living near a fuel-fired power plant increases the likelihood of hospitalization for respiratory disease. METHODS Rates of hospitalization for asthma, acute respiratory infection (ARI), and chronic obs...
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