{"id":{"repo_id":"wvu","oai_identifier":"oai:researchrepository.wvu.edu:etd-2133"},"canonical_url":"https://search.dev.ndltd.org/etd/wvu/oai:researchrepository.wvu.edu:etd-2133","repository":{"repo_id":"wvu","name":"West Virginia University","base_url":"https://researchrepository.wvu.edu/do/oai/"},"display":{"title":"Design and evaluation of the emissions measurement components for a heavy-duty diesel-powered vehicle mobile emissions measurement system (MEMS)","abstract":"The objective of this study was the design, construction, and preliminary qualification of the Mobile Emissions Measurement System (MEMS) for in-use, on-road testing of heavy-duty diesel-powered vehicles. This included selection of emissions analyzers and sampling system components capable of producing emissions results of similar accuracy to those attained with laboratory-grade instruments. A thorough investigation of commercially available systems, and a literature review, identified no suitable designs. Therefore, a complete emissions measurement system, designed specifically for the testing of heavy-duty diesel powered vehicles, was developed using available components.;The candidate analyzers that performed successfully during bottled gas bench tests were then incorporated into a sampling system and tested with diesel engine exhaust. Emissions concentrations reported by the MEMS were compared to concentrations reported by laboratory-grade analyzers. Results indicated that the system is capable of reporting cycle-integrated, brake-specific CO2 within 3%, and NOx within 5% of laboratory data over an FTP cycle.","abstract_html":"The objective of this study was the design, construction, and preliminary qualification of the Mobile Emissions Measurement System (MEMS) for in-use, on-road testing of heavy-duty diesel-powered vehicles. This included selection of emissions analyzers and sampling system components capable of producing emissions results of similar accuracy to those attained with laboratory-grade instruments. A thorough investigation of commercially available systems, and a literature review, identified no suitable designs. Therefore, a complete emissions measurement system, designed specifically for the testing of heavy-duty diesel powered vehicles, was developed using available components.;The candidate analyzers that performed successfully during bottled gas bench tests were then incorporated into a sampling system and tested with diesel engine exhaust. Emissions concentrations reported by the MEMS were compared to concentrations reported by laboratory-grade analyzers. Results indicated that the system is capable of reporting cycle-integrated, brake-specific CO2 within 3%, and NOx within 5% of laboratory data over an FTP cycle.","abstract_has_math":false,"creators":["Riddle, Wesley Clark"],"institution":null,"degree_name":"MS","degree_level":"Thesis","degree_discipline":"Mechanical and Aerospace Engineering","degree_department":null,"school":null,"contributors":["Mridul Gautam."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2001,"date_issued":"2001-05-01T07:00:00Z","date_published":"2001-05-01T07:00:00Z","updated_at":"2026-07-24T06:15:23Z","subjects":["Mechanical engineering","Environmental engineering"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["https://researchrepository.wvu.edu/etd/1130"],"render_values":[{"text":"https://researchrepository.wvu.edu/etd/1130","href":"https://researchrepository.wvu.edu/etd/1130","code":true}]}]},"links":{"outbound_url":"https://doi.org/10.33915/etd.1130","outbound_label":"DOI","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Mridul Gautam."]},{"key":"dc:creator","label":"Author","values":["Riddle, Wesley Clark"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.available","label":"Dc Date Available","values":["2019-01-17T08:00:00Z"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Mechanical and Aerospace Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["MS"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Mechanical engineering","Environmental engineering"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://doi.org/10.33915/etd.1130","https://researchrepository.wvu.edu/etd/1130"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The objective of this study was the design, construction, and preliminary qualification of the Mobile Emissions Measurement System (MEMS) for in-use, on-road testing of heavy-duty diesel-powered vehicles. This included selection of emissions analyzers and sampling system components capable of producing emissions results of similar accuracy to those attained with laboratory-grade instruments. A thorough investigation of commercially available systems, and a literature review, identified no suitable designs. Therefore, a complete emissions measurement system, designed specifically for the testing of heavy-duty diesel powered vehicles, was developed using available components.;The candidate analyzers that performed successfully during bottled gas bench tests were then incorporated into a sampling system and tested with diesel engine exhaust. Emissions concentrations reported by the MEMS were compared to concentrations reported by laboratory-grade analyzers. Results indicated that the system is capable of reporting cycle-integrated, brake-specific CO2 within 3%, and NOx within 5% of laboratory data over an FTP cycle."]},{"key":"dc:title","label":"Title","values":["Design and evaluation of the emissions measurement components for a heavy-duty diesel-powered vehicle mobile emissions measurement system (MEMS)"]}]}],"canonical_facts":{"dc:contributor":["Mridul Gautam."],"dc:creator":["Riddle, Wesley Clark"],"dc:date.available":["2019-01-17T08:00:00Z"],"dc:description.abstract":["The objective of this study was the design, construction, and preliminary qualification of the Mobile Emissions Measurement System (MEMS) for in-use, on-road testing of heavy-duty diesel-powered vehicles. This included selection of emissions analyzers and sampling system components capable of producing emissions results of similar accuracy to those attained with laboratory-grade instruments. A thorough investigation of commercially available systems, and a literature review, identified no suitable designs. Therefore, a complete emissions measurement system, designed specifically for the testing of heavy-duty diesel powered vehicles, was developed using available components.;The candidate analyzers that performed successfully during bottled gas bench tests were then incorporated into a sampling system and tested with diesel engine exhaust. Emissions concentrations reported by the MEMS were compared to concentrations reported by laboratory-grade analyzers. 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