Experimental assessment of the combustion performance of an oven burner operated on pipeline natural gas mixed with hydrogen |
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| Affiliation: | 1. School of Energy and Power Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China;2. California State Polytechnic University, Los Angeles, CA 91768, USA;1. Department of Astronautics, Electrical and Energy Engineering (DIAEE), Sapienza University of Rome, Via Eudossiana, 18, 00184 Rome, Italy;2. Department of Architectural Engineering and Technology (AE+T), TU Delft University of Technology, Julianalaan 134, 2628BL Delft, The Netherlands;3. Department of Planning, Design, and Technology of Architecture (DPDTA), Sapienza University of Rome, Via Flaminia 72, 00196 Rome, Italy;1. Fluid Dynamics Group, University of Zaragoza, María de Luna 3, 50018, Zaragoza, Spain;2. Gas Competence Center, Product Division Cooking, BSH Home Appliances Group, Avd Eduardo García del Río 30, 39011, Santander, Spain;1. Research and Technology Center of Energy, Laboratory of Wind Energy Master and Waste Energy Recovery (LMEEVED), Hammam-Lif 2050, Tunisia;2. Aerothermochemistry Interprofessional Research Complex (CORIA), Rouen University, France;3. National Engineering School of Monastir, LESTE, Monastir, Tunisia |
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| Abstract: | With the increasing need to reduce greenhouse gas emission and adopt sustainability in combustion systems, injection of renewable gases into the pipeline natural gas is of great interest. Due to high specific energy density and various potential sources, hydrogen is a competitive energy carrier and a promising gaseous fuel to replace natural gas in the future. To test the end use impact of hydrogen injection into the natural gas pipeline infrastructure, the present study has been carried out to evaluate the fuel interchangeability between hydrogen and natural gas in a residential commercial oven burner. Various combustion performance characteristics were evaluated, including flashback limits, ignition performance, flame characteristics, combustion noise, burner temperature and emissions (NO, NO2, N2O, CO, UHC, NH3). Primary air entrainment process was also investigated. Several correlations for predicting air entrainment were compared and evaluated for accuracy based on the measured fuel/air concentration results in the burner. The results indicate that 25% (by volume) hydrogen can be added to natural gas without significant impacts. Above this amount, flashback in the burner tube is the limiting factor. Hydrogen addition has minimal impact on NOX emission while expectedly decreasing CO emissions. As the amount of hydrogen increases in the fuel, the ability of the fuel to entrain primary air decreases. |
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| Keywords: | Pipeline natural gas Hydrogen Interchangeability Oven burner Emissions |
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