Numerical study of synthetic LPG flames affected by vortex generator on an air port of slot burner

Main Article Content

M. Phootornsri
A. Kaewpradap

Abstract

The parameters of the vortex generator (VG) were designed to apply for non-premixed synthetic LPG combustion on a Slot Burner (SB). The objectives are improvement of mixing and increase of flame temperature. The mathematics model was used to study the effects of the parameters, there are position, angle, direction, aspect ratio (AR), and distance (S) between the vortex generator on an air port of SB, it is called VGSB. The VG was installed on an air port with 60-degree angle, CW direction, AR=0.4, and S=1 mm, it could improve the combustion characteristics due to the VG was increased the airflow velocity, induced a well-mixed between fuel and air, made the uniform temperature distribution. It was affecting to the higher flame temperature of LPG combustion.

Article Details

How to Cite
Phootornsri, M., & Kaewpradap, A. (2022). Numerical study of synthetic LPG flames affected by vortex generator on an air port of slot burner. Journal of Research and Applications in Mechanical Engineering, 10(2), JRAME–22. Retrieved from https://ph01.tci-thaijo.org/index.php/jrame/article/view/248797
Section
RESEARCH ARTICLES

References

Energy Policy and Planning Office, Thailand. Energy statistics January-June, URL: http://www.eppo.go.th, accessed on 10/06/2022.

Kwok, L.C., Leung, C.W. and Cheung, C.S. Heat transfer characteristics of slot and round premixed impinging flame jets, Experimental Heat Transfer, Vol. 16, 2003, pp. 111-137.

Kalantari, A. and McDonell, V. Boundary layer flashback of non-swirling premixed flames, Progress in Energy and Combustion Science, Vol. 61, 2017, pp 249-292.

Sudjan, T., Jugjai, S. and Keawpradap, A. Combustion characteristics of C3H8/C4H10 flames affected by air flow bluff body on non-premixed slot burner, Suranaree Journal of Science and Technology, Vol. 28(2), 2021, pp. 1-6.

Mahesh, S. and Mishra, D.P. Flame stability and emission characteristics of turbulent LPG IDF in a backstep burner, Fuel, Vol. 87, 2008, pp. 2614-2619.

Mahesh, S. and Mishra, D.P. Flame structure of LPG-air Inverse Diffusion Flame in a backstep burner, Fuel, Vol. 89(8), 2010, pp. 2145-2148.

Angsuchoti, M., Kaewpradap, A. and Jugjai, S. Investigation of methane combustion flames diluted by carbondioxide on non-premixed burner, paper presented in the 8th TSME-ICoME, 2017, Bangkok, Thailand.

Raykowski, K.A. Optimization of a Vortex Generator Configuration for a 1/4-Scale Piper Cherokee Wing (Thesis), 1999, Embry-Riddle Aeronautical University, United States.

Zheng, Y., Yang, H., Mazaheri, H., Aghaei, A., Mokhtari, N. and Afrand, M. An investigation on the influence of the shape of the vortex generator on fluid flow and turbulent heat transfer of hybrid nanofluid in a channel, Journal of Thermal Analysis and Calorimetry, Vol. 143, 2021, pp 1425-1438.

Ke, Z., Chen, C.L., Li, K., Wang, S. and Chen, C.H. Vortex dynamics and heat transfer of longitudinal vortex generators in a rectangular channel, International Journal of Heat and Mass Transfer, Vol. 132, 2018, pp 871-855.

Patel, V. and Shah, R. Experimental investigation on flame appearance and emission characteristics of LPG inverse diffusion flame with swirl, Applied Thermal Engineering, Vol. 137, 2018, pp. 377-385.

Chitakorn, Tawee and Pongjet. Effect of Rib-inclined Angle on Heat Transfer in a Wavy Ribbed Channel, paper presented in the 23th Conference of Mechanical Engineering Network of Thailand, 2009, Chiang Mai, Thailand.

Jugjai, S. Combustion, 2004, Active print, Bangkok. (In Thai)

Ministry of Energy, Thailand. Combustion theory, URL: http://www2.dede.go.th/bhrd/old/Download/file_

handbook/Pre_Heat/pre_heat_3.pdf, accessed on 15/01/2022. (In Thai)

ANSYS Inc. ANSYS Fluent Tutorial Guide18, 2017, ANSYS, United States.

ANSYS Inc. ANSYS Fluent Theory Guide15, 2013, ANSYS, United States.

Maneerattanabhorn, P. Vortex generator effects on flame temperature and combustion characteristics of synthetic LPG on slot burner (Thesis), 2022,King Mongkut's University of Technology Thonburi, Thailand.