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dc.contributor.advisorJohn B. Heywood.en_US
dc.contributor.authorHolmes, Jacklyn (Jacklyn A.)en_US
dc.contributor.otherMassachusetts Institute of Technology. Dept. of Mechanical Engineering.en_US
dc.date.accessioned2012-02-24T15:29:42Z
dc.date.available2012-02-24T15:29:42Z
dc.date.copyright2010en_US
dc.date.issued2010en_US
dc.identifier.urihttp://hdl.handle.net/1721.1/69179
dc.descriptionThesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2010.en_US
dc.descriptionCataloged from PDF version of thesis.en_US
dc.descriptionIncludes bibliographical references (p. 28).en_US
dc.description.abstractThis project investigated how refurbishing the carburetor of a 1952 Chevrolet Pickup would affect emissions, performance, and fuel economy. The test used were real-world tests that anyone, with or without access to a laboratory, can perform. The design of the real-world tests is important for ascertaining good results. Thought should go into how to perform the tests safely while still eliminating as many variables as possible. The emissions at idle improved by reducing the carbon monoxide percentage from 4-6% to 2- 3%. The hydrocarbon levels were reduced from 800-1000 ppm to 500-600 ppm. The results of the emissions test were unclear at cruise. The performance data showed that the vehicle had a slower acceleration after the refurbishing. The time to go from stopped to 100 feet in first gear was 5.46 s before refurbishing, and 6.48 s after refurbishing. It is possible that the vehicle was running lean at wide-open throttle after refurbishing. The fuel economy improved with the refurbished carburetor. The initial fuel economy was 10.7 mpg and the final fuel economy was 15.2 mpg. Once the results from the tests are collected, they need to be scrutinized to see if they are plausible using empirical data. Even with extreme care it is difficult to get precise measurements using real-world tests. The emissions data at cruise was not consistent with idle and could not be used. The fuel economy tests and emissions tests at idle show that the engine was running less fuel rich after refurbishing.en_US
dc.description.statementofresponsibilityby Jacklyn Holmes.en_US
dc.format.extent35 p.en_US
dc.language.isoengen_US
dc.publisherMassachusetts Institute of Technologyen_US
dc.rightsM.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.en_US
dc.rights.urihttp://dspace.mit.edu/handle/1721.1/7582en_US
dc.subjectMechanical Engineering.en_US
dc.titleThe effect of carburetor refurbishing on emissions, performance, and fuel economy in a classic pickup tested using real-world testsen_US
dc.typeThesisen_US
dc.description.degreeS.B.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Dept. of Mechanical Engineering.en_US
dc.identifier.oclc676809587en_US


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