Analysis of Highly CO 2 -Diluted Oxy-propane Flames Stabilized over a Multihole Burner of a Model Gas Turbine Combustor.

Autor: Habib MA; Interdisciplinary Research Center for Hydrogen & Energy Storage (IRC-HES), King Fahd University of Petroleum and Minerals, Dhahran31261, Saudi Arabia.; Researcher at K.A. CARE Energy Research & Innovation Center at Dhahran, Riyadh11451, Saudi Arabia.; Mechanical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran31261, Saudi Arabia., Haque MA; Interdisciplinary Research Center for Hydrogen & Energy Storage (IRC-HES), King Fahd University of Petroleum and Minerals, Dhahran31261, Saudi Arabia.; Researcher at K.A. CARE Energy Research & Innovation Center at Dhahran, Riyadh11451, Saudi Arabia.; Mechanical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran31261, Saudi Arabia.; Department of Mechanical Engineering, Idaho State University, Pocatello, Idaho83209, United States., Nemitallah MA; Interdisciplinary Research Center for Hydrogen & Energy Storage (IRC-HES), King Fahd University of Petroleum and Minerals, Dhahran31261, Saudi Arabia.; Researcher at K.A. CARE Energy Research & Innovation Center at Dhahran, Riyadh11451, Saudi Arabia.; Aerospace Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran31261, Saudi Arabia.; SDAIA-KFUPM Joint Research Center for Artificial Intelligence (JRC-AI), KFUPM, Dhahran31261, Saudi Arabia., Abdelhafez A; Interdisciplinary Research Center for Hydrogen & Energy Storage (IRC-HES), King Fahd University of Petroleum and Minerals, Dhahran31261, Saudi Arabia.; Mechanical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran31261, Saudi Arabia., Khalifa AE; Mechanical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran31261, Saudi Arabia.; Interdisciplinary Research Center for Renewable Energy and Power Systems (IRC-REPS), King Fahd University of Petroleum & Minerals, Dhahran31261, Saudi Arabia.
Jazyk: angličtina
Zdroj: ACS omega [ACS Omega] 2022 Nov 03; Vol. 7 (45), pp. 41493-41507. Date of Electronic Publication: 2022 Nov 03 (Print Publication: 2022).
DOI: 10.1021/acsomega.2c05274
Abstrakt: Premixed oxy-propane flames are investigated numerically in a multihole model gas turbine combustor at various inlet mixture compositions over a range of equivalence ratios (Ø: 0.241-0.500), oxygen fractions (OF: 32.4-60.0%), and adiabatic flame temperatures ( T ad : 1600-1900 K) at a constant bulk throat velocity of 5.2 m/s. The flames in multihole combustors are highly influenced by their corresponding adiabatic flame temperatures. Similar flame shapes are observed at constant T ad , where cases with (Ø = 0.241, OF = 60%) and (Ø = 0.50, OF = 32.4%) both represent lifted flames at T ad = 1600 K, anchored flames in (Ø = 0.276, OF = 60%) and (Ø = 0.50, OF = 36.6%) at T ad = 1750 K, and anchored stronger flames in cases (Ø = 0.313, OF = 60%), (Ø = 0.392, OF = 50%), and (Ø = 0.50, OF = 40.8%) at T ad = 1900 K. Flames in a multihole combustor are characterized by the presence of an outer recirculation zone (ORZ) only. In comparison with a swirl-stabilized combustor in identical inlet conditions, flames in a multihole combustor demonstrate a lower Damköhler number ( Da ), higher flame thickness, elevated pattern factor, and increased CO emission. Due to the reduced vorticity level because of the absence of swirl motion, the multihole flames have higher axial temperature than the swirl-stabilized ones.
Competing Interests: The authors declare no competing financial interest.
(© 2022 The Authors. Published by American Chemical Society.)
Databáze: MEDLINE
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