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Taguchi methods applied to oxygen-enriched diesel engine experiments

Description: This paper describes a test series conducted on a six-cylinder diesel engine to study the impacts of controlled factors (i.e., oxygen content of the combustion air, water content of the fuel, fuel rate, and fuel-injection timing) on engine emissions using Taguchi methods. Three levels of each factor were used in the tests. Only the main effects of the factors were examined; no attempt was made to analyze the interactions among the factors. It was found that, as in the case of the single-cylinde… more
Date: January 1, 1992
Creator: Marr, W. W.; Sekar, R. R.; Cole, R. L.; Marciniak, T. J. (Argonne National Lab., IL (United States)) & Longman, D. E. (Autoresearch Labs., Inc., Chicago, IL (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Baseline Gas Turbine Development Program Eighth Quarterly Progress Report

Description: Progress is reported for a program to demonstrate by 1976 an experimental gas turbine powered automobile which meets the 1978 Federal Emissions Standards, has significantly improved fuel economy, and is competitive in performance, reliability, and potential manufacturing cost with the conventional piston engine powered, standard size American automobile. Major preparations for engine heat balance tests by NASA were completed. EPA laboratories completed Baseline vehicle emissions, noise, and odo… more
Date: October 31, 1974
Creator: Schmidt, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Handling effluent from nuclear thermal propulsion system ground tests

Description: A variety of approaches for handling effluent from nuclear thermal propulsion system ground tests in an environmentally acceptable manner are discussed. The functional requirements of effluent treatment are defined and concept options are presented within the framework of these requirements. System concepts differ primarily in the choice of fission-product retention and waste handling concepts. The concept options considered range from closed cycle (venting the exhaust to a closed volume or rec… more
Date: September 9, 1992
Creator: Shipers, L. R. & Allen, G. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluation of methyl alcohol as a vehicle fuel extender. Final report

Description: Methyl alcohol (methanol) can be made from coal and waste products with reasonable thermal efficiency. Strong interest in blending this liquid fuel with gasoline for automotive use has developed. A research program is described which characterized the behavior of methanol-gasoline blends in spark ignition engines, particularly those used in automobiles. The program included: characterizing octane ratings of methanol-gasoline blends, a single cylinder engine study of the effects of engine parame… more
Date: August 1, 1975
Creator: Johnson, R. T. & Riley, R. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Motor vehicle fuel economy, the forgotten HC control stragegy. [Hydrocarbon (HC)]

Description: Emissions of hydrocarbons from motor vehicles are recognized as major contributors to ozone pollution in urban areas. Petroleum-based motor fuels contain volatile organic compounds (VOC) which, together with oxides of nitrogen, promote the formation of ozone in the troposphere via complex photochemical reactions. VOC emissions from the tailpipe and evaporation from the fuel and engine systems of highway vehicles are believed to account for about 40% of total VOC emissions in any region. But mot… more
Date: June 1, 1992
Creator: Deluchi, M.; Wang, Quanlu & Greene, D. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Baseline Gas Turbine Development Program Fifth Quarterly Progress Report

Description: Progress is reported for a program to demonstrate by 1976 an experimental gas turbine powered automobile which meets the 1976 Federal Emissions Standards, has significantly improved fuel economy, and is competitive in performance, reliability, and potential manufacturing cost with the conventional piston engine powered, standard size American automobile. Baseline engines 5, 6, and 7 were built. Action to correct a 7 percent power deficiency is underway. Two baseline vehicles are operational, wi… more
Date: January 31, 1974
Creator: Wagner, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Engine data measurement system. [Pouliot variable displacement engine]

Description: The data measurement and reduction system for the Pouliot variable displacement engine uses a Hewlett Packard 2114A minicomputer. The raw data are processed to compute the horsepower, air-fuel ratio, equivalence ratio, brake specific fuel consumption, and brake specific emissions of unburned hydrocarbons, oxides of nitrogen, and carbon monoxide. Emissions are checked for consistency by applying the chemical equilibrium theory of Spindt.
Date: September 1, 1976
Creator: Robinson, C. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Automotive powerplant evaluation

Description: A program to obtain automotive engine performance data for use in estimating vehicle emission and fuel economy in varied service and duty is described. An experimental test procedure for generating fuel consumption and emissions data adequate to characterize an engine over its full operating range was developed for steady-state tests. The development of a test procedure for transient testing is currently under way. The steady-state data will be collected from approximately 23 different engines,… more
Date: June 1, 1976
Creator: Stamper, K. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Baseline Gas Turbine Development Program. Sixteenth Quarterly Progress Report

Description: Progress is reported for a program whose goals are to demonstrate an experimental ungraded gas turbine powered automobile which meets the 1978 Federal Emissions Standards, has significantly improved fuel economy, and is competitive in performance, reliability, and potential manufacturing cost with the conventional piston engine powered, compact-size American automobile. Initial running of the upgraded engine took place on July 13, 1976. The engine proved to be mechanically sound but was also se… more
Date: October 31, 1976
Creator: Schmidt, F. W. & Wagner, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Valve timing: its effect on emissions and fuel economy

Description: The effects of valve timing on exhaust emissions and fuel consumption were investigated experimentally. Emission control through the use of varied valve timing compared to conventional emissions control hardware was documented along with the effects of valve timing on emissions. Fuel consumption trends with changed valve timing were determined. The engine design of the test vehicle allowed independent adjustment of intake and exhaust valve timing. Emissions and fuel consumption were determined … more
Date: August 1, 1977
Creator: Bechtold, R. L. & Marshall, W. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Baseline Gas Turbine Development Program Sixth Quarterly Progress Report

Description: Progress is reported for a program to demonstrate by 1976 an experimental gas turbine powered automobile which meets the 1976 Federal Emissions Standards, has significantly improved fuel economy, and is competitive in performance, reliability, and potential manufacturing cost with the conventional piston engine powered, standard size American automobile. Engines were built to replace those originally loaned to the Program. Efforts to identify and correct a general power deficiency were generall… more
Date: April 30, 1974
Creator: Wagner, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Baseline Gas Turbine Development Program Ninth Quarterly Progress Report

Description: Progress is reported for a program to demonstrate by 1976 an experimental gas turbine powered automobile which meets the 1978 Federal Emissions Standards, has significantly improved fuel economy, and is competitive in performance, reliability, and potential manufacturing cost with the conventional piston engine powered, standard size American automobile. NASA completed the first phase of their baseline engine heat balance tests, and an upgraded engine compressor is being scaled for test. EPA co… more
Date: January 31, 1975
Creator: Schmidt, C. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Alternative Fuel Evaluation Program: Alternative Fuel Light Duty Vehicle Project - Data collection responsibilities, techniques, and test procedures

Description: This report describes the data gathering and analysis procedures that support the US Department of Energy's implementation of the Alternative Motor Fuels Act (AMFA) of 1988. Specifically, test procedures, analytical methods, and data protocols are covered. The aim of these collection and analysis efforts, as mandated by AMFA, is to demonstrate the environmental, economic, and performance characteristics of alternative transportation fuels.
Date: July 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Industrial bottoming-cycle targeting of opportunities at the plant site. Volume I. Executive summary

Description: Bottoming cycle potential in the US industrial marketplace is identified using the General Energy Associates Industrial Plant Energy Profile Data Base. From the data base technology evaluations and economic estimates can be made directly at the plant site level. The top 10,000 plants in the country were individually analyzed for these bottoming cycle applications. Results are summarized as follows: potential number of plant sites and megawatts, potential energy savings, electric production, reg… more
Date: September 1, 1982
Creator: Moore, N. L.; Brown, H. L.; Hamel, B. B.; Toy, M. P. & Hedman, B. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Initial conditioning of the TFTR vacuum vessel

Description: We report on the initial conditioning of the Tokamak Fusion Test Reactor (TFTR) vacuum vessel prior to the initiation of first plasma discharges, and during subsequent operation with high power ohmically-heated plasmas. Following evacuation of the 86 m/sup 3/ vessel with the 10/sup 4/ 1/s high vacuum pumping system, the vessel was conditioned by a 15 A dc glow discharge in H/sub 2/ at a pressure of 5 mTorr. Rapid-pulse discharge cleaning was used subsequently to preferentially condition the gra… more
Date: January 1, 1984
Creator: Dylla, H. F.; Blanchard, W. R.; Krawchuk, R. B.; Hawryluk, R. J. & Owens, D. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

AREAS: a computer code for estimating air pollutant concentrations from dispersed sources

Description: The AREAS area-source computer code, written in FORTRAN IV, is described and listed. This code, which runs in less than 7 seconds on the IBM 360/91 computer, estimates annual-average concentrations of an air pollutant at ground level in each of 400 grid squares in a 20 by 20 area reference grid. AREAS can be used for multiple, dispersed sources located in each of the 400 grid squares by treating them as area sources. Required input includes 20 by 20 arrays of annual-average point-source chi/Q v… more
Date: May 1, 1978
Creator: Moore, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Quantifying the Contribution of Lubrication Oil Carbon to Particulate Emissions from a Diesel Engine

Description: The contribution of lubrication oil to particulate matter (PM) emissions from a Cummins B5.9 Diesel engine was measured using accelerator mass spectrometry to trace carbon isotope concentrations. The engine operated at fixed medium load (285 N-m (210 ft.lbs.) at 1600 rpm) used 100% biodiesel fuel (8100) with a contemporary carbon-14 ({sup 14}C) concentration of 103 amol {sup 14}C mg C. The {sup 14}C concentration of the exhaust CO{sub 2} and PM were 102 and 99 amol {sup 14}C/mg C, respectively.… more
Date: January 31, 2003
Creator: Buchholz, B. A.; Dibble, R. W.; Rich, D. & Cheng, A. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Aftermarket Fuel Delivery Systems for Natural Gas and Lpg Vehicles

Description: This study was designed to evaluate the effectiveness of aftermarket fuel delivery systems for vehicles fueled by compressed natural gas (CNG) and liquefied petroleum gas (LPG). Most of the CNG and LPG vehicles studied were converted to the alternative fuel after purchase. There are wide variations in the quality of the conversion hardware and the installation. This leads to questions about the overall quality of the converted vehicles, in terms of emissions, safety, and performance. There is a… more
Date: September 1, 1992
Creator: Willson, B. (Colorado State Univ., Fort Collins, CO (United States))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Performance characteristics of automotive engines in the United States. First series. Report No. 13. 1975 American Motors, 258 CID (4. 2 liters), 1V

Description: Experimental data were obtained in dynamometer tests of a 1975 AMC 258-CID production IV engine to determine fuel consumption and emissions (hydrocarbon, carbon monoxide, oxides of nitrogen) at steady-state engine-operating modes. The objective of the program is to obtain engine-performance data for estimating emissions and fuel economy for varied engine service and duty. The intent of the work is to provide basic engine characteristic data required as input for engineering calculations involvi… more
Date: April 1, 1978
Creator: Marshall, W. F. & Stamper, K. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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