2026-09-21T17:40:21Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/129253 2025-10-20 col_2142_5131 col_2142_14787 com_2142_5130 com_2142_9630 com_2142_234

application/pdf en text Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-10-19 without embargo terms The student, Ghassan Arissi, accepted the attached license on 2025-04-25 at 10:22. The student, Ghassan Arissi, submitted this Thesis for approval on 2025-04-25 at 11:16. This Thesis was approved for publication on 2025-05-06 at 16:57. DSpace SAF Submission Ingestion Package generated from Vireo submission #21977 on 2025-10-19 at 18:11:01 A standard operating procedure for accurate condensation heat transfer measurements Arissi, Ghassan 2025-05-06 Miljkovic, Nenad Condensation Dropwise Filmwise Non-condensable gases eng The condensation of steam is an important phase change process to many industries, its high complexity however makes it one of the hardest processes to quantify. The experimental data collected for dropwise condensation in particular, has been very scattered and that has mainly been attributed to the presence of trace amounts of non-condensable gases (NCGs) in the steam. It is the objective of this thesis to develop a standard operating procedure that can easily be implemented in condensation chambers around the world to enable accurate heat transfer measurements. Here the use of a vent as a means to deal with NCGs is explored. Through experimental work, analytical modeling, and CFD simulations new insights are made on the role of the vent. Finally, guidelines are given to help in properly guiding the use of a vent to limit NCG effects without otherwise influencing the heat transfer data collected. 2025-05 Thesis https://hdl.handle.net/2142/129253 Copyright 2025 Ghassan Arissi Mechanical Sci & Engineering Mechanical Engineering University of Illinois Urbana-Champaign M.S. Thesis