Comments on: Determine the power rating of the boiler and it’s thermal efficiency?

Comments on: Determine the power rating of the boiler and it’s thermal efficiency? http://www.boiler-scrappage.info/determine-the-power-rating-of-the-boiler-and-its-thermal-efficiency/ Replace Your Inefficient Boiler Tue, 09 Feb 2010 17:12:14 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Lilly Ryan http://www.boiler-scrappage.info/determine-the-power-rating-of-the-boiler-and-its-thermal-efficiency/comment-page-1/#comment-53 Lilly Ryan Mon, 23 Nov 2009 04:51:35 +0000 http://www.boiler-scrappage.info/determine-the-power-rating-of-the-boiler-and-its-thermal-efficiency/#comment-53 you need to see the steam tables, i found the enthalpies online Efficiency= Msteam (hsteam- hfeedwater) / (Mfuel * CVfuel ) = [12.5 ( 3177- 335)] / (1.25* 36*1000) = 78.9 % Power rating = 12.5 *1000* (3177-335) = 35525 MJ/h = 35525/3600 = 9.86 MW you need to see the steam tables, i found the enthalpies online

Efficiency= Msteam (hsteam- hfeedwater) / (Mfuel * CVfuel )
= [12.5 ( 3177- 335)] / (1.25* 36*1000)
= 78.9 %

Power rating = 12.5 *1000* (3177-335) = 35525 MJ/h
= 35525/3600 = 9.86 MW

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