{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/90666"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/90666","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"An experimental facility for microchannel research and evaporating R134a in microchannel tube","abstract":"Microchannel research is important for heat exchanger design. Heat transfer coefficient and pressure drop are the two most important parameters to be measured in an experimental facility. A featured design of heat transfer behavior and pressure drop testing facility for both evaporating and condensing refrigerant in microchannel tubes are made and introduced in this thesis. Details of the installing of the test section, conditioning section, pressure sensors, and other important component of the facility are discussed in section 2. The calibration process of measurement instruments and results are reported in section 3. Heat loss to ambient, effect of thermal paste contact resistance, and temperature uniformity have been discussed in detail. The process of data reduction and uncertainty analysis are discussed. In section 4, testing results of the facility with evaporating R134a are given. Both heat transfer coefficient and pressure drop are measured and reported in this thesis. The conclusion gives a brief summary of this thesis. The appendix has included calibration data from section 2 and raw data from section 4.","abstract_html":"Microchannel research is important for heat exchanger design. Heat transfer coefficient and pressure drop are the two most important parameters to be measured in an experimental facility. A featured design of heat transfer behavior and pressure drop testing facility for both evaporating and condensing refrigerant in microchannel tubes are made and introduced in this thesis. Details of the installing of the test section, conditioning section, pressure sensors, and other important component of the facility are discussed in section 2. The calibration process of measurement instruments and results are reported in section 3. Heat loss to ambient, effect of thermal paste contact resistance, and temperature uniformity have been discussed in detail. The process of data reduction and uncertainty analysis are discussed. In section 4, testing results of the facility with evaporating R134a are given. Both heat transfer coefficient and pressure drop are measured and reported in this thesis. The conclusion gives a brief summary of this thesis. The appendix has included calibration data from section 2 and raw data from section 4.","abstract_has_math":false,"creators":["Li, Houpei"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Mechanical Engineering","degree_department":null,"school":null,"contributors":["Hrnjak, Predrag"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2016,"date_issued":"2016-07-07T19:58:11Z","date_published":"2016-07-07T19:58:11Z","updated_at":"2026-07-22T22:26:34Z","subjects":["Experiment","Refrigerant","Heat transfer","Pressure drop","Microchannel","R134a"],"languages":["en"],"rights":["Copyright 2016, Houpei Li"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/90666","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Hrnjak, Predrag"]},{"key":"dc:creator","label":"Author","values":["Li, Houpei"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2016-07-07T19:58:11Z","2016-04-28","2016-05"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Mechanical Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Experiment","Refrigerant","Heat transfer","Pressure drop","Microchannel","R134a"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2016, Houpei Li"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/90666"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Microchannel research is important for heat exchanger design. Heat transfer coefficient and pressure drop are the two most important parameters to be measured in an experimental facility. A featured design of heat transfer behavior and pressure drop testing facility for both evaporating and condensing refrigerant in microchannel tubes are made and introduced in this thesis. Details of the installing of the test section, conditioning section, pressure sensors, and other important component of the facility are discussed in section 2. The calibration process of measurement instruments and results are reported in section 3. Heat loss to ambient, effect of thermal paste contact resistance, and temperature uniformity have been discussed in detail. The process of data reduction and uncertainty analysis are discussed. In section 4, testing results of the facility with evaporating R134a are given. Both heat transfer coefficient and pressure drop are measured and reported in this thesis. The conclusion gives a brief summary of this thesis. The appendix has included calibration data from section 2 and raw data from section 4.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2016-07-07 without embargo terms","The student, Houpei Li, accepted the attached license on 2016-04-26 at 15:15.","The student, Houpei Li, submitted this Thesis for approval on 2016-04-26 at 15:18.","This Thesis was approved for publication on 2016-04-28 at 13:50.","DSpace SAF Submission Ingestion Package generated from Vireo submission #9524 on 2016-07-07 at 13:33:31","Made available in DSpace on 2016-07-07T19:58:11Z (GMT). No. of bitstreams: 2 LI-THESIS-2016.pdf: 4583706 bytes, checksum: b35ebee24509a6e2710752e8dc1be019 (MD5) LICENSE.txt: 4206 bytes, checksum: 234a2e206bc13a4210425528b9078670 (MD5) Previous issue date: 2016-04-28"]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["An experimental facility for microchannel research and evaporating R134a in microchannel tube"]}]}],"canonical_facts":{"dc:contributor":["Hrnjak, Predrag"],"dc:creator":["Li, Houpei"],"dc:date":["2016-07-07T19:58:11Z","2016-04-28","2016-05"],"dc:description":["Microchannel research is important for heat exchanger design. Heat transfer coefficient and pressure drop are the two most important parameters to be measured in an experimental facility. A featured design of heat transfer behavior and pressure drop testing facility for both evaporating and condensing refrigerant in microchannel tubes are made and introduced in this thesis. Details of the installing of the test section, conditioning section, pressure sensors, and other important component of the facility are discussed in section 2. The calibration process of measurement instruments and results are reported in section 3. Heat loss to ambient, effect of thermal paste contact resistance, and temperature uniformity have been discussed in detail. The process of data reduction and uncertainty analysis are discussed. In section 4, testing results of the facility with evaporating R134a are given. Both heat transfer coefficient and pressure drop are measured and reported in this thesis. The conclusion gives a brief summary of this thesis. The appendix has included calibration data from section 2 and raw data from section 4.","Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2016-07-07 without embargo terms","The student, Houpei Li, accepted the attached license on 2016-04-26 at 15:15.","The student, Houpei Li, submitted this Thesis for approval on 2016-04-26 at 15:18.","This Thesis was approved for publication on 2016-04-28 at 13:50.","DSpace SAF Submission Ingestion Package generated from Vireo submission #9524 on 2016-07-07 at 13:33:31","Made available in DSpace on 2016-07-07T19:58:11Z (GMT). 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