Investigation of jet A-1 and waste cooking oil biodiesel fuel blend flame characteristics stabilized by radial swirler in lean pre-vaporized premixed combustor

Shaimaa M. Masoud, Ali M.A. Attia, Hindawi Salem and Radwan M. El-Zoheiry

Energy, 2023, vol. 263, issue PC

Abstract: Energy crisis and the new environmental legislations have motivated researchers worldwide to come up with new solutions to these emerging problems. One of the proposed solutions is to biodiesel from vegetable and waste oils to substitute the conventional fuels. The current study aims to investigate the flame characteristics of waste cooking oil biodiesel fuel blend stabilized by radial swirler in Lean Pre-vaporized Premixed (LPP) combustor. In this scope following tasks were performed (i) preparing Waste Cooking Oil Methyl (WCOME) via an ultrasonic assisted transesterification process, (ii) designing and constructing radial swirler (with swirl number SN = 0.55), and (iii) investigating the flame structures of base Jet A-1 fuel and a blend of WCOME and Jet A-1 containing 10% of WCOME (symbolized as B10). Experiments were performed at equivalence ratio Φ = 0.75 and air preheat temperature of 310 °C. Measurements revealed more temperature distribution with lower maximum value for B10 than those for base fuel. CO was higher for B10 at exit level in the range of 14,000 ppm. On the other hand, it was on average of 230 ppm for Jet A-1. NOx emissions recorded was slightly lower for B10 than Jet A-1, but both were about 10 ppm. It could be concluded that, B10 can replace Jet A-1 to reduce NOx emissions with uniform temperature distribution. Use of LPP combustion reduces gas turbine emissions and use of radial swirler to stabilize the lean premixed mixture is confirmed.

Keywords: Waste cooking oil biodiesel; Ultrasonic assisted transesterification; Radial swirler; Flame structure; Lean pre-vaporized premixed (LPP) combustion (search for similar items in EconPapers)
Date: 2023
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:263:y:2023:i:pc:s0360544222027165

DOI: 10.1016/j.energy.2022.125830

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