نتایج جستجو برای: liquefied petroleum gas
تعداد نتایج: 259376 فیلتر نتایج به سال:
Biogas derived from organic wastes is considered as good alternative to petroleum fuels. It can be used in compression ignition (CI) engines, because of its better mixing ability with air and clean burning nature. Biogas is produced by anaerobic digestion of various organic substances such as kitchen wastes, agricultural wastes, municipal solid wastes, cow dung etc., in absence of oxygen, which...
PURPOSE Despite the low prevalence of gambling problems, older adults experience poorer health status given certain vulnerabilities associated with aging. Thus, we aimed to classify lifetime (LPG) and current (CPG) problem gambling patterns, identify determinants of gambling patterns, and examine their association with current health status. METHODS Using older adult gamblers (n = 489) in the...
Only 17.5 % of all Indian homes use LPG as their primary cooking fuel, with 90 % of rural households dependent on some form of biomass. To improve the quality of life of such a large number of people, it is imperative that clean and renewable alternatives are provided for cooking. This paper presents one such. An ethanol stove running on 50 % ethanol-water mixture has been developed at Nimbkar ...
Values of some characteristic parameters of confined explosions for LPG (Liquefied Petroleum Gas)-air quiescent mixtures are examined in correlation with the initial pressure of fuel-air mixture and fuel/air ratio. The explosion pressures, the explosion times and the maximum rates of pressure rise were obtained from experiments made at ambient initial temperature in two closed vessels with cent...
Globally, 41% of households, over 2.8 billion people, rely on solid fuels (coal and biomass) for cooking and heating. In developing countries in Asia and sub-Saharan Africa where these fuels are predominantly used, women who are customarily responsible for cooking, and their young children, are most exposed to the resulting air pollution. Solid fuels are still in widespread use and it appears t...
ZSM-5-containing catalytic additives are widely used in oil refineries to boost light olefin production and improve gasoline octanes in the Fluid Catalytic Cracking (FCC) process. Under the hydrothermal conditions present in the FCC regenerator (typically >700 °C and >8% steam), FCC catalysts and additives are subject to deactivation. Zeolites (e.g., Rare Earth USY in the base catalyst and ZSM-...
ZnO nanorods (diameters∼25 nmand lengths∼145-150 nm) were synthesized by using a simple solochemical method and their LPG sensing properties were investigated. The ZnO nanorods exhibited outstanding gas sensingcharacteristics such as, higher gas response (∼502 to 50ppm LPG at 300 ◦C), extremely rapid response(∼6-7 s), fast recovery (∼6–7 s), excellent reproducibility, good sensing selectivity a...
The association of fuel use and ocular morbidity in a village in western India was investigated in a cross sectional prevalence survey involving 469 randomly selected subjects. All subjects were interviewed and underwent medical and ophthalmological examination. Wood use was found to be an important factor in the aetiology of age dependent cataract (OR 2.12, 95% CI 1.03-4.34). When comparing wo...
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