{"id":{"repo_id":"wvu","oai_identifier":"oai:researchrepository.wvu.edu:etd-2158"},"canonical_url":"https://search.dev.ndltd.org/etd/wvu/oai:researchrepository.wvu.edu:etd-2158","repository":{"repo_id":"wvu","name":"West Virginia University","base_url":"https://researchrepository.wvu.edu/do/oai/"},"display":{"title":"Development of a micro-dilution tunnel system for in-use, on-board heavy-duty vehicle particulate matter emissions measurement","abstract":"A novel portable particulate matter measuring system was designed, developed and qualified. The heavy-duty engine Federal Test Procedure (FTP) requires the use of a full-flow tunnel to measure particulate emissions from diesel fueled engines. However, a full-flow tunnel based constant volume sampler (CVS) system is not only expensive to build and maintain, it also requires a large work space. The portable micro-dilution system that could be used for measuring on-board, in-use emissions from heavy-duty vehicles would cost significantly less. The micro-dilution tunnel operates on the same principle as a full-flow dilution tunnel. The added advantage of the proposed design is that unlike a full-flow tunnel, dilution ratios can be controlled very accurately. Dilution ratios were determined by measuring the mass flow rates of the dilution air and dilute exhaust, and the difference of the two was equal to the raw exhaust mass flow rate. The design incorporates a novel (3.175 mm in diameter, and 0.254 m long) concentric stainless dilution tunnel, which was a porous stack sampler manufactured by Mott Corporation. The system was used to collect PM emissions data from two different engines, namely, Navistar T444E and Detroit Diesel Series 60. (Abstract shortened by UMI.).","abstract_html":"A novel portable particulate matter measuring system was designed, developed and qualified. The heavy-duty engine Federal Test Procedure (FTP) requires the use of a full-flow tunnel to measure particulate emissions from diesel fueled engines. However, a full-flow tunnel based constant volume sampler (CVS) system is not only expensive to build and maintain, it also requires a large work space. The portable micro-dilution system that could be used for measuring on-board, in-use emissions from heavy-duty vehicles would cost significantly less. The micro-dilution tunnel operates on the same principle as a full-flow dilution tunnel. The added advantage of the proposed design is that unlike a full-flow tunnel, dilution ratios can be controlled very accurately. Dilution ratios were determined by measuring the mass flow rates of the dilution air and dilute exhaust, and the difference of the two was equal to the raw exhaust mass flow rate. The design incorporates a novel (3.175 mm in diameter, and 0.254 m long) concentric stainless dilution tunnel, which was a porous stack sampler manufactured by Mott Corporation. The system was used to collect PM emissions data from two different engines, namely, Navistar T444E and Detroit Diesel Series 60. (Abstract shortened by UMI.).","abstract_has_math":false,"creators":["Cirillo, Emily Deanna"],"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":"2001-08-01T07:00:00Z","date_published":"2001-08-01T07:00:00Z","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/1155"],"render_values":[{"text":"https://researchrepository.wvu.edu/etd/1155","href":"https://researchrepository.wvu.edu/etd/1155","code":true}]}]},"links":{"outbound_url":"https://doi.org/10.33915/etd.1155","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":["Cirillo, Emily Deanna"]}]},{"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.1155","https://researchrepository.wvu.edu/etd/1155"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["A novel portable particulate matter measuring system was designed, developed and qualified. The heavy-duty engine Federal Test Procedure (FTP) requires the use of a full-flow tunnel to measure particulate emissions from diesel fueled engines. However, a full-flow tunnel based constant volume sampler (CVS) system is not only expensive to build and maintain, it also requires a large work space. The portable micro-dilution system that could be used for measuring on-board, in-use emissions from heavy-duty vehicles would cost significantly less. The micro-dilution tunnel operates on the same principle as a full-flow dilution tunnel. The added advantage of the proposed design is that unlike a full-flow tunnel, dilution ratios can be controlled very accurately. Dilution ratios were determined by measuring the mass flow rates of the dilution air and dilute exhaust, and the difference of the two was equal to the raw exhaust mass flow rate. The design incorporates a novel (3.175 mm in diameter, and 0.254 m long) concentric stainless dilution tunnel, which was a porous stack sampler manufactured by Mott Corporation. The system was used to collect PM emissions data from two different engines, namely, Navistar T444E and Detroit Diesel Series 60. (Abstract shortened by UMI.)."]},{"key":"dc:title","label":"Title","values":["Development of a micro-dilution tunnel system for in-use, on-board heavy-duty vehicle particulate matter emissions measurement"]}]}],"canonical_facts":{"dc:contributor":["Mridul Gautam."],"dc:creator":["Cirillo, Emily Deanna"],"dc:date.available":["2019-01-17T08:00:00Z"],"dc:description.abstract":["A novel portable particulate matter measuring system was designed, developed and qualified. The heavy-duty engine Federal Test Procedure (FTP) requires the use of a full-flow tunnel to measure particulate emissions from diesel fueled engines. However, a full-flow tunnel based constant volume sampler (CVS) system is not only expensive to build and maintain, it also requires a large work space. The portable micro-dilution system that could be used for measuring on-board, in-use emissions from heavy-duty vehicles would cost significantly less. The micro-dilution tunnel operates on the same principle as a full-flow dilution tunnel. The added advantage of the proposed design is that unlike a full-flow tunnel, dilution ratios can be controlled very accurately. Dilution ratios were determined by measuring the mass flow rates of the dilution air and dilute exhaust, and the difference of the two was equal to the raw exhaust mass flow rate. The design incorporates a novel (3.175 mm in diameter, and 0.254 m long) concentric stainless dilution tunnel, which was a porous stack sampler manufactured by Mott Corporation. The system was used to collect PM emissions data from two different engines, namely, Navistar T444E and Detroit Diesel Series 60. (Abstract shortened by UMI.)."],"dc:identifier":["https://doi.org/10.33915/etd.1155","https://researchrepository.wvu.edu/etd/1155"],"dc:subject":["Mechanical engineering","Environmental engineering"],"dc:title":["Development of a micro-dilution tunnel system for in-use, on-board heavy-duty vehicle particulate matter emissions measurement"],"thesis:degree_discipline":["Mechanical and Aerospace Engineering"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["MS"]},"updated_at":"2026-07-24T06:15:23Z"}