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原文传递 Investigation of Techniques for High Evaporative Emissions Vehicle Detection: Denver Summer 2008 Pilot Study at Lipan Street Station - Report Version 5

题名：	Investigation of Techniques for High Evaporative Emissions Vehicle Detection: Denver Summer 2008 Pilot Study at Lipan Street Station - Report Version 5
作者：	empty
关键词：	Investigation##High Evaporative Emissions Vehicle Detection##Denver (Colorado)##Techniques##Pilot study data##Gasoline-powered engines##Evaporative emission vehicles##Lipan Street Station##Coordinating Research Council (CRC)##
摘要：	EPA is currently developing the MOVES mobile sources inventory model. As part of that effort, EPA needs to be able to model the evaporative emissions of gasoline-powered on-road vehicles. Evaporative emissions occur when volatile components of gasoline are emitted or when raw gasoline leaks from the fuel system and the evaporative emissions control system. To meet the evaporative emissions modeling needs of the MOVES model, EPA, with the support of the Coordinating Research Council (CRC), is conducting studies to quantify fleet evaporative emissions. Ultimately, EPA would like to know the distribution of the mass of evaporative emissions across all vehicles in the fleet. This project follows the CRC projects looking at aging enhanced evaporative emission vehicles. E-77 Pilot and E-77-2 were laboratory testing studies which looked at ethanol and RVP fuel effects as well as implanted leak effects on different laboratory test procedures to capture evaporative emissions. The implanted leak data indicates there may be significant effects from small leaks which can multiply in the inventory. This follow-on study can shed light on determining how often the leaks or “High Evap” are found in the fleet.
总页数：	111
报告类型：	科技报告