Author: Publisher:
ISBN:
Category : Air
Languages : en
Pages : 76
Book Description
Running Loss Evaporative Emissions Determination by the Point Source Method
Author: Running Loss Evaporative Emissions Determination by the Point Source Method
Author: IIT Research Institute, National Institute for Petroleum and Energy Research (NIPER)Publisher:
ISBN:
Category :
Languages : en
Pages : 38
Book Description
Measurement of Fuel Evaporative Emissions From Gasoline Powered Passenger Cars and Light Trucks By the Trap Method
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
The highly preferred SAE Recommended Practice for measuring evaporative emissions from fuel systems of passenger cars and light trucks is the enclosure technique detailed in SAE J171. The sensitivity and accuracy of the enclosure technique is superior to that of the trap method. This recommended practice is retained for historical reference and for use with older vehicles imported into the United States of America. In addition, this trap method is referenced in SAE J171a for making running loss measurements which cannot practically be made in an enclosure. Emissions are measured during a sequence of laboratory tests that simulate typical vehicle usage in a metropolitan area during summer months.
Estimating Running Loss Evaporative Emissions in MOBILE6
Author: Larry C. LandmanEstimating Running Loss Evaporative Emissions in MOBILE6
Author: Larry C. LandmanEnergy Research Abstracts
Author: Measurement of Fuel Evaporative Emissions From Gasoline Powered Passenger Cars and Light Trucks Using the Enclosure Technique
Author: SAE IC Powertrain Steering CommitteePublisher:
ISBN:
Category :
Languages : en
Pages : 0
Book Description
This SAE Recommended Practice describes a procedure for measuring evaporative emissions from fuel systems of passenger cars and light trucks. Emissions are measured during a sequence of laboratory tests that simulate typical vehicle usage in a metropolitan area during summer months: 1.) A 1 h soak representing one diurnal cycle in which temperature of fuel in the vehicle's tank is raised from 15.6 to 28.9 degrees C (60 to 84 degrees F). 2.) A 17.9 km (11.1 mile) run on a chassis dynamometer. 3.) A 1 h hot soak immediately following the 17.9 km (11.1 mile) drive. The method described in this document, commonly known as the SHED (Sealed Housing for Evaporative Determination) technique, employs an enclosure in which the vehicle is placed during the diurnal and hot soak phases of the test. Vapors that escape from all openings in the fuel system--both expected and unexpected--are retained in the enclosure, and the increase in hydrocarbon (HC) concentration of the atmosphere in the enclosure represents the evaporative emissions. Emission values measured by the enclosure method can, therefore, be significantly different than those obtained by the former trap method, depending on fuel system configuration and component design.
Federal Register
Author: Planned Air Pollution Research
Author: Reduced Emissions and Fuel Consumption in Automobile Engines
Author: Fred SchäferPublisher: Springer Science & Business Media
ISBN: 370913806X
Category : Technology & Engineering
Languages : en
Pages : 205
Book Description
Over the last several years, there has been much discussion on the interrelation of CO2 emissions with the global warming phenomenon. This in turn has increased pressure to develop and produce more fuel efficient engines and vehicles. This is the central topic of this book. It covers the underlying processes which cause pollutant emissions and the possibilities of reducing them, as well as the fuel consumption of gasoline and diesel engines, including direct injection diesel engines. As well as the engine-related causes of pollution, which is found in the raw exhaust, there is also a description of systems and methods for exhaust post treatment. The significant influence of fuels and lubricants (both conventional and alternative fuels) on emission behavior is also covered. In addition to the conventional gasoline and diesel engines, lean-burn and direct injection gasoline engines and two-stroke gasoline and diesel engines are included. The potential for reducing fuel consumption and pollution is described as well as the related reduction of CO2 emissions. Finally, a detailed summary of the most important laws and regulations pertaining to pollutant emissions and consumption limits is presented. This book is intended for practising engineers involved in research and applied sciences as well as for interested engineering students.