Optical micro-resonator sensor for air velocity measurement

2021 ◽  
Author(s):  
Elie Salameh ◽  
Jaime Da Silva ◽  
M. Volkan Otugen ◽  
Dominique Fourguette
Keyword(s):  
Velocity Measurement ◽  
Air Velocity ◽  
Micro Resonator

scholarly journals A Local Air Velocity Measurement Method for Estimating Infiltration Heat Load through Doorway of the Cold Store

2017 ◽  
Vol 105 ◽  
pp. 3275-3281 ◽  
Author(s):  
Shen Tian ◽  
Yuping Gao ◽  
Shuangquan Shao ◽  
Hongbo Xu ◽  
Changqing Tian
Keyword(s):  
Velocity Measurement ◽  
Heat Load ◽  
Measurement Method ◽  
Air Velocity ◽  
Cold Store

Analysis of LPG diffusion flame in tube type burner

2019 ◽  
Vol 13 (3) ◽  
pp. 5278-5293
Author(s):  
Vipul Patel ◽  
Rupesh Shah
Keyword(s):  
Diffusion Flame ◽  
Emission Characteristic ◽  
Flame Stability ◽  
Liquefied Petroleum Gas ◽  
Air Velocity ◽  
Length Fraction ◽  
Low Emission ◽  
Tube Type ◽  
Stability Limits ◽  
Co Emission

The present research aims to analyse diffusion flame in a tube type burner with Liquefied petroleum gas (LPG) as a fuel. An experimental investigation is performed to study flame appearance, flame stability, Soot free length fraction (SFLF) and CO emission of LPG diffusion flame. Effects of varying air and fuel velocities are analysed to understand the physical process involved in combustion. SFLF is measured to estimate the reduction of soot. Stability limits of the diffusion flame are characterized by the blowoff velocity. Emission characteristic in terms of CO level is measured at different equivalence ratios. Experimental results show that the air and fuel velocity strongly influences the appearance of LPG diffusion flame. At a constant fuel velocity, blue zone increases and the luminous zone decreases with the increase in air velocity. It is observed that the SFLF increases with increasing air velocity at a constant fuel velocity. It is observed that the blowoff velocity of the diffusion flame increases as fuel velocity increases. Comparison of emission for flame with and without swirl indicates that swirl results in low emission of CO and higher flame stability. Swirler with 45° vanes achieved the lowest CO emission of 30 ppm at Φ = 1.3.

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