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Comparative Study of Spray of Different Liquids

Sprays can be defined as a dispersion of droplets with sufficient momentum to penetrate the surrounding medium. Generally a spray is produced by using a nozzle which is normally referred to as an atomizer and the surrounding medium is gaseous. Processes utilizing droplets require enough momentum...

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Main Author: Daud, Mohd Hafizudin
Format: Final Year Project
Language:English
Published: Universiti Teknologi Petronas 2011
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://utpedia.utp.edu.my/7055/1/2011%20-%20Comparative%20study%20of%20spray%20of%20different%20liquids.pdf
http://utpedia.utp.edu.my/7055/
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spelling my-utp-utpedia.70552017-01-25T09:42:07Z http://utpedia.utp.edu.my/7055/ Comparative Study of Spray of Different Liquids Daud, Mohd Hafizudin TJ Mechanical engineering and machinery Sprays can be defined as a dispersion of droplets with sufficient momentum to penetrate the surrounding medium. Generally a spray is produced by using a nozzle which is normally referred to as an atomizer and the surrounding medium is gaseous. Processes utilizing droplets require enough momentum to transport the droplets to where they are utilized or to provide mixing with the gas. Shape, pattern and some measure of droplet sizes are the primary spray characteristics. The study of sprays of liquid fuels can be hazardous and costly. However, by replacing the liquid fuel with non flammable liquids such as water can reduce these problems. The objective of the project is to find whether water has any similar characteristics with the selected liquid fuel or not. The studies focus on two major components. Firstly, the study focuses on microscopic characteristics such as droplet size and mean velocity. Spray characteristics of different liquids (methanol, diesel and water) are analyzed by Laser Doppler Anemometry (LDA) and Phase Doppler Anemometry (PDA). Laser Doppler Anemometry (LDA) systems are used to measure droplet velocities of fluid sprays. Phase Doppler Anemometry (PDA) systems are used to measure the droplet sizes of fluid sprays. A high speed camera is used in the second part of the research in order to observe the structure of droplets, measure the spray angles at nozzle exit and determine the droplets movement. Spray angle variations are observed under different pressures for each fluid. From analysis of the results, it is found that the water and diesel has similarity in Sauter Mean Diameter. For both horizontal and vertical velocities, water and diesel did not have any similarity in term of spray characteristics. Universiti Teknologi Petronas 2011-05 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/7055/1/2011%20-%20Comparative%20study%20of%20spray%20of%20different%20liquids.pdf Daud, Mohd Hafizudin (2011) Comparative Study of Spray of Different Liquids. Universiti Teknologi Petronas. (Unpublished)
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Daud, Mohd Hafizudin
Comparative Study of Spray of Different Liquids
description Sprays can be defined as a dispersion of droplets with sufficient momentum to penetrate the surrounding medium. Generally a spray is produced by using a nozzle which is normally referred to as an atomizer and the surrounding medium is gaseous. Processes utilizing droplets require enough momentum to transport the droplets to where they are utilized or to provide mixing with the gas. Shape, pattern and some measure of droplet sizes are the primary spray characteristics. The study of sprays of liquid fuels can be hazardous and costly. However, by replacing the liquid fuel with non flammable liquids such as water can reduce these problems. The objective of the project is to find whether water has any similar characteristics with the selected liquid fuel or not. The studies focus on two major components. Firstly, the study focuses on microscopic characteristics such as droplet size and mean velocity. Spray characteristics of different liquids (methanol, diesel and water) are analyzed by Laser Doppler Anemometry (LDA) and Phase Doppler Anemometry (PDA). Laser Doppler Anemometry (LDA) systems are used to measure droplet velocities of fluid sprays. Phase Doppler Anemometry (PDA) systems are used to measure the droplet sizes of fluid sprays. A high speed camera is used in the second part of the research in order to observe the structure of droplets, measure the spray angles at nozzle exit and determine the droplets movement. Spray angle variations are observed under different pressures for each fluid. From analysis of the results, it is found that the water and diesel has similarity in Sauter Mean Diameter. For both horizontal and vertical velocities, water and diesel did not have any similarity in term of spray characteristics.
format Final Year Project
author Daud, Mohd Hafizudin
author_facet Daud, Mohd Hafizudin
author_sort Daud, Mohd Hafizudin
title Comparative Study of Spray of Different Liquids
title_short Comparative Study of Spray of Different Liquids
title_full Comparative Study of Spray of Different Liquids
title_fullStr Comparative Study of Spray of Different Liquids
title_full_unstemmed Comparative Study of Spray of Different Liquids
title_sort comparative study of spray of different liquids
publisher Universiti Teknologi Petronas
publishDate 2011
url http://utpedia.utp.edu.my/7055/1/2011%20-%20Comparative%20study%20of%20spray%20of%20different%20liquids.pdf
http://utpedia.utp.edu.my/7055/
_version_ 1739831416199315456
score 13.211869

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