Fly Ash and Flue Gas Flows - CR4 Discussion Thread

Home

Products & Services

Engineering News

Standards

Webinars

Engineering Forum

Login

CR4 Home | Mechanical Engineering | Mechanical Engineering

5 comments

Rate

Comments: Nested

narendra54 Commentator Join Date: Sep 2008 Location: Tiruchirapalli Tamil Nadu India Posts: 56 Good Answers: 3	Fly Ash and Flue Gas Flows 12/17/2008 6:49 AM
	We have a large duct in which a mixture of Fly ash and flue gas flows. At low loads the amount of gas volume is low and lot of ash is settled in the duct. What should be the minimum velocity of gas so that ash remains entrained in gas and not settle. Thankyou,
	Register to Reply
	Pathfinder Tags: fly ash Settlement velocity

Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Join CR4, The Engineer's Place for News and Discussion!

ducon Guru Join Date: Dec 2006 Location: Hop around Toronto, New York & Karachi Posts: 1876 Good Answers: 19	#1 Re: Fly Ash and Flue Gas Flows 12/17/2008 10:48 AM
	We have a large duct in which a mixture of Fly ash and flue gas flows. - Flow from what Boiler/ Drier/ Klin?? What are you burning as fuel? Why do you not ask the manufacturer? __________________ I not only use all the brains that I have, but all that I can borrow. Woodrow Wilson
	Register to Reply

narendra54 Commentator Join Date: Sep 2008 Location: Tiruchirapalli Tamil Nadu India Posts: 56 Good Answers: 3	#2 In reply to #1 Re: Fly Ash and Flue Gas Flows 12/17/2008 10:52 PM
	The boiler is coal fired with about 40 % Ash. We happen to be the manufacturer of the boiler.
	Register to Reply

ducon Guru Join Date: Dec 2006 Location: Hop around Toronto, New York & Karachi Posts: 1876 Good Answers: 19	#3 In reply to #2 Re: Fly Ash and Flue Gas Flows 12/17/2008 11:52 PM
	Then you must be manufacturing under a franchise license with the main manufacturer who has designed it . Are you not? Suggest you ask your Principals for without going through all the drawings it is not viable for anybody to comment.Look up B&W books to help you out. __________________ I not only use all the brains that I have, but all that I can borrow. Woodrow Wilson
	Register to Reply

editorgbanalysts Power-User Join Date: Jul 2008 Location: United States of America Posts: 429 Good Answers: 3	#5 In reply to #2 Re: Fly Ash and Flue Gas Flows 12/19/2008 4:26 PM
	In the event that you also have vapours of various chemicals in the flue gas, the calculation will also be temperature dependent. So you really have to get hold of the original designer or contract a consultant for the service. There are just too many unknowns to work with, based on your post. __________________ EditorGBAnalysts - Give a boy fish and he will eat may be for a day, but teach him how to fish and he will eat everyday.
	Register to Reply

apcco Commentator Join Date: Mar 2007 Posts: 58 Good Answers: 1	#4 Re: Fly Ash and Flue Gas Flows 12/18/2008 2:45 AM
	Please, read website http://mysite.verizon.net/restkgfn/airpolcontrol Any questions, please, call 714-536-6310
	Register to Reply

Copy to Clipboard

Users who posted comments:

apcco (1); ducon (2); editorgbanalysts (1); narendra54 (1)

You might be interested in: Flue and Chimney Systems, Gas Instruments, Gas Sensors

	Got Something to Say?
	Ask a Question Start a Discussion

	Search this Forum
	Mechanical Engineering: Go

CR4 Sections

	Aerospace
	BioMech & BioMed
	Chemical & Material Science
	Civil Engineering
	Communications & Electronics
	Education and Engineering Careers
	Electrical Engineering
	General Discussion
	Instrumentation
	Manufacturing
	Mechanical Engineering
	New Technologies & Research
	Software & Programming
	Sustainable Engineering
	Transportation

	Site Directories
	Forum Directory Blog Directory User Group Directory RSS Feeds CR4 Rules of Conduct CR4 FAQ Site Glossary Who's Online (93 right now) Show Members