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Power rating of a heat exchanger
How is the power rating of a water/water heat exchanger defined? I'm
guessing there's some standard test conditions (that hopefully reflect actual usage) that define things like temperature and flow rate on the primary and secondary whilst measuring the power transfer? What would be a typical value for such a central heating boiler derived heat-exch? (Or more specifically for a Vaillant measuring 200*75*40mm and a stack of 15 plates!) |
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#2
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Power rating of a heat exchanger
On Sat, 04 Aug 2007 12:01:57 +0000, wrote:
How is the power rating of a water/water heat exchanger defined? I'm guessing there's some standard test conditions (that hopefully reflect actual usage) that define things like temperature and flow rate on the primary and secondary whilst measuring the power transfer? What would be a typical value for such a central heating boiler derived heat-exch? (Or more specifically for a Vaillant measuring 200*75*40mm and a stack of 15 plates!) Specs of a 50kW one here http://wiki.diyfaq.org.uk/index.php?title=DIY_Heat_Bank A combi one would be about half the power rating -- John Stumbles Who's *really* behind all these conspiracy theories? |
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