Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor | Multi-disciplinary Studies | en_US |
| dc.contributor | Department of Mechanical Engineering | en_US |
| dc.creator | Kwok, Arving | - |
| dc.identifier.uri | https://theses.lib.polyu.edu.hk/handle/200/5191 | - |
| dc.language | English | en_US |
| dc.publisher | Hong Kong Polytechnic University | - |
| dc.rights | All rights reserved | en_US |
| dc.title | Theoretical study and experimental evaluation of domestic burner | en_US |
| dcterms.abstract | This project is to investigate the characteristics of a domestic burner. Previous researchers have developed a series of theoretical equations for combustion. These equations are based on certain assumptions. The assumptions may deviate from actual condition and cause the result unreasonable. The applicability of the theoretical equations on a domestic burner is very important, especially in burner design. Experiment is setup to examine the theoretical prediction wit the actual measurement. It is found that the relationship between the premixed flame length and aeration air/fuel ratio can be reasonably predicted. By applying Roper's equation on a domestic burner, the diffusion flame length is double the actual value. Although it does not have a precise prediction, it provides a rough idea and presents the trend of diffusion flame length against fuel flow rate. It is also very useful for burner design. Efficiency of a domestic burner, in varies fuel flow rate and air/fuel ratio, is measured. It has higher efficiency at low fuel flow rate and fuel-rich flow. The result is analyzed. With the measurement of flame temperature and distribution, premixed flame (fuel-lean flow) has higher temperature but shorter length. The highest temperature zone of the flame does not touch the cooking pan and hence reduces the efficiency. Pollutant emission of a domestic burner is measured. Pollutant emission decreases at low fuel flow rate. CO, HC emissions decrease at fuel-lean flow but NOX, NO emissions increase. One important aspect of this project is the effect of oxygen enrichment on burner performance. Efficiency increases while pollution decreases with the oxygen content in the primary air. However, flame speed is increased. Flame flashes back and causes small explosion inside burner ports. Moreover, flame temperature is also increased up to 1650 C. Material for burner and cooking pan should be reconsidered. | en_US |
| dcterms.extent | 87, [29] leaves : ill. (chiefly col.) ; 31 cm | en_US |
| dcterms.isPartOf | PolyU Electronic Theses | en_US |
| dcterms.issued | 2000 | en_US |
| dcterms.educationalLevel | All Master | en_US |
| dcterms.educationalLevel | M.Sc. | en_US |
| dcterms.LCSH | Gas-burners | en_US |
| dcterms.LCSH | Combustion | en_US |
| dcterms.LCSH | Combustion gases -- Environmental aspects | en_US |
| dcterms.LCSH | Hong Kong Polytechnic University -- Dissertations | en_US |
| dcterms.accessRights | restricted access | en_US |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| b15176460.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 12.13 MB | Adobe PDF | View/Open |
Copyright Undertaking
As a bona fide Library user, I declare that:
- I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
- I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
- I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.
Please use this identifier to cite or link to this item:
https://theses.lib.polyu.edu.hk/handle/200/5191