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Radiant Flux

Started by lohiacp, Nov 18 2014 05:16 AM

design of fired heater

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#1 lohiacp

Junior Member

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15 posts

Posted 18 November 2014 - 05:16 AM

Dear members,

In the clients' datasheet for heater design, the average radiant flux is given as 10,000 Btu/h-ft². I am using 3 times NPS as the spacing between tubes instead of the normal consideration of 2 times in the radiant section.

Should the calculated average allowable flux be 10,000 Btu/h-ft² in the heater rating? I believe it will be higher than that. If different from 10,000 then how should I determine what flux is required?

Thanks and Regards,

Chandra Prakash Lohia

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