logging in or signing up Combustion tyeman Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 3350 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: March 10, 2009 This Presentation is Public Favorites: 1 Presentation Description What is combustion and how does it work Comments Posting comment... Premium member Presentation Transcript Combustion : 10/03/2009 1 Combustion Robert Tye Slide 2: 10/03/2009 2 Combustion When gas burns, a chemical reaction takes place, which uses Oxygen present in the air. The result of this chemical reaction (combustion process) is a release of heat energy. Anything that interferes with the combustion process will cause Carbon Monoxide to be produced. The most common causes of Carbon Monoxide production are: Slide 3: 10/03/2009 3 ¨ Lack of Oxygen - Lack of primary air. - Insufficient ventilation ¨ Flame Chilling - Debris on the burner - Flame touching the heat exchanger ¨ Flame Impingement - One flame touching another flame Incomplete Combustion : 10/03/2009 4 Incomplete Combustion The two main reasons that lead to incomplete combustion are a lack of Oxygen and interference of the flame. Where the combustion process is starved of air, it is said that the combustion process has become `violated`. A lack of oxygen is a direct result of either insufficient air reaching the burner through the primary air port, or where there is insufficient ventilation air. Flame Chilling : 10/03/2009 5 Flame Chilling Flame chilling normally occurs where there is a direct draught playing across the burner, or there is some kind of other interference with the flame, for example, debris on the burner. Whenever the combustion process is disturbed, the production of Carbon Monoxide may be the result. Flammability Limits : 10/03/2009 6 Flammability Limits Slide 7: 10/03/2009 7 Natural Gas- explosive range 5-15% Propane- explosive range 2-10% Butane – explosive range 1.8-9 % One spark or other ignition source where the concentration is between 5-15% Natural Gas, 2-10% Propane or 1.8- 9% Butane, may cause a explosion What This Means : 10/03/2009 8 What This Means Add a strong statement that summarizes how you feel or think about this topic Summarize key points you want your audience to remember Next Steps : 10/03/2009 9 Next Steps Summarize any actions required of your audience Summarize any follow up action items required of you You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Combustion tyeman Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINT lite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 3350 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: March 10, 2009 This Presentation is Public Favorites: 1 Presentation Description What is combustion and how does it work Comments Posting comment... Premium member Presentation Transcript Combustion : 10/03/2009 1 Combustion Robert Tye Slide 2: 10/03/2009 2 Combustion When gas burns, a chemical reaction takes place, which uses Oxygen present in the air. The result of this chemical reaction (combustion process) is a release of heat energy. Anything that interferes with the combustion process will cause Carbon Monoxide to be produced. The most common causes of Carbon Monoxide production are: Slide 3: 10/03/2009 3 ¨ Lack of Oxygen - Lack of primary air. - Insufficient ventilation ¨ Flame Chilling - Debris on the burner - Flame touching the heat exchanger ¨ Flame Impingement - One flame touching another flame Incomplete Combustion : 10/03/2009 4 Incomplete Combustion The two main reasons that lead to incomplete combustion are a lack of Oxygen and interference of the flame. Where the combustion process is starved of air, it is said that the combustion process has become `violated`. A lack of oxygen is a direct result of either insufficient air reaching the burner through the primary air port, or where there is insufficient ventilation air. Flame Chilling : 10/03/2009 5 Flame Chilling Flame chilling normally occurs where there is a direct draught playing across the burner, or there is some kind of other interference with the flame, for example, debris on the burner. Whenever the combustion process is disturbed, the production of Carbon Monoxide may be the result. Flammability Limits : 10/03/2009 6 Flammability Limits Slide 7: 10/03/2009 7 Natural Gas- explosive range 5-15% Propane- explosive range 2-10% Butane – explosive range 1.8-9 % One spark or other ignition source where the concentration is between 5-15% Natural Gas, 2-10% Propane or 1.8- 9% Butane, may cause a explosion What This Means : 10/03/2009 8 What This Means Add a strong statement that summarizes how you feel or think about this topic Summarize key points you want your audience to remember Next Steps : 10/03/2009 9 Next Steps Summarize any actions required of your audience Summarize any follow up action items required of you