The effect of swirl number on discharge coefficient for various orifice sizes in a burner system

A liquid fuel burner system with different orifice plate sizes mounted at the exit plane of the air swirler outlet has been investigated using a 140 mm inside diameter combustor of 400 mm length. Three different orifice plate diameters of 45 mm, 40 mm and 35 mm were used with a 10o to 70o radial air...

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Main Authors: Ashrul Ishak, Mohamad Shaiful, Mohd. Jaafar, Mohammad Nazri
Format: Article
Language:English
Published: Faculty of Mechanical Engineering 2004
Subjects:
Online Access:http://eprints.utm.my/6497/1/MohamadShaifulAshrul2004_The_effect_of_swirl_number_on_discharge.pdf
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author Ashrul Ishak, Mohamad Shaiful
Mohd. Jaafar, Mohammad Nazri
author_facet Ashrul Ishak, Mohamad Shaiful
Mohd. Jaafar, Mohammad Nazri
author_sort Ashrul Ishak, Mohamad Shaiful
collection ePrints
description A liquid fuel burner system with different orifice plate sizes mounted at the exit plane of the air swirler outlet has been investigated using a 140 mm inside diameter combustor of 400 mm length. Three different orifice plate diameters of 45 mm, 40 mm and 35 mm were used with a 10o to 70o radial air swirler vane angles. The purpose of orifice plate insertion is to create the swirler pressure loss at the swirler outlet so that the swirler outlet shear layer turbulence could be maximized to assist in the mixing of fuel and air. Measurements of air flow rates, air inlet temperature, air inlet pressure and pressure drop across the combustor have been carried out to predict the isothermal characteristics inside the combustor, ie. discharge coefficient. The result shows that the discharge coefficient decreases as the swirl number increases for all three different orifice plate sizes.
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spelling utm.eprints-64972017-03-09T03:11:12Z http://eprints.utm.my/6497/ The effect of swirl number on discharge coefficient for various orifice sizes in a burner system Ashrul Ishak, Mohamad Shaiful Mohd. Jaafar, Mohammad Nazri TJ Mechanical engineering and machinery A liquid fuel burner system with different orifice plate sizes mounted at the exit plane of the air swirler outlet has been investigated using a 140 mm inside diameter combustor of 400 mm length. Three different orifice plate diameters of 45 mm, 40 mm and 35 mm were used with a 10o to 70o radial air swirler vane angles. The purpose of orifice plate insertion is to create the swirler pressure loss at the swirler outlet so that the swirler outlet shear layer turbulence could be maximized to assist in the mixing of fuel and air. Measurements of air flow rates, air inlet temperature, air inlet pressure and pressure drop across the combustor have been carried out to predict the isothermal characteristics inside the combustor, ie. discharge coefficient. The result shows that the discharge coefficient decreases as the swirl number increases for all three different orifice plate sizes. Faculty of Mechanical Engineering 2004 Article PeerReviewed application/pdf en http://eprints.utm.my/6497/1/MohamadShaifulAshrul2004_The_effect_of_swirl_number_on_discharge.pdf Ashrul Ishak, Mohamad Shaiful and Mohd. Jaafar, Mohammad Nazri (2004) The effect of swirl number on discharge coefficient for various orifice sizes in a burner system. Jurnal Mekanikal (17). pp. 99-108. ISSN 0127-3396
spellingShingle TJ Mechanical engineering and machinery
Ashrul Ishak, Mohamad Shaiful
Mohd. Jaafar, Mohammad Nazri
The effect of swirl number on discharge coefficient for various orifice sizes in a burner system
title The effect of swirl number on discharge coefficient for various orifice sizes in a burner system
title_full The effect of swirl number on discharge coefficient for various orifice sizes in a burner system
title_fullStr The effect of swirl number on discharge coefficient for various orifice sizes in a burner system
title_full_unstemmed The effect of swirl number on discharge coefficient for various orifice sizes in a burner system
title_short The effect of swirl number on discharge coefficient for various orifice sizes in a burner system
title_sort effect of swirl number on discharge coefficient for various orifice sizes in a burner system
topic TJ Mechanical engineering and machinery
url http://eprints.utm.my/6497/1/MohamadShaifulAshrul2004_The_effect_of_swirl_number_on_discharge.pdf
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