Re: [TRNSYS-users] Flue loss coefficient in Type534 (TESS Lib)

[Matt Duffy <duffy@tess-inc.com>]

Dear Mika Yoshinaga,

 

Thank you for bringing this to our attention. The units of those particular flue loss parameters for the Type534 (with out plugin) should be a default of [kJ/h.K]. The version with the plug-on does indeed have this labeled correctly. If you need a copy of the proforma, please send me a private message.

 

Thank you,

 

Matt Duffy

 

On 2013-02-07 00:10, 吉永 美香 wrote:

Dear David and all,

 

I use TESS Type534, vertically cylindrical storage tank with immersed HX, and face to a small problem with "gas flue losses". From what I understand, the gas flue losses is for the modelling of heat loss through an immersed gas pipes for boiler or some kind of heater.

In parameters, there are some "Flue loss coefficient for node" and their unit are [W/m2K] or such order. If so, the area of the gas flue pipes also need to be set, with unit [m2], but there isn't such a parameter.

I wonder if this is just a little mistake and the "Flue loss coefficient for node" has the unit [W/K] correctly. This is more reasonable, because it is explainded as "for node".

 

Thanks in advance.

 

Mika

 

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Mika Yoshinaga

Assoc. Prof., Meijo University
Dr. of Environmental Studies

Email  yoshi@meijo-u.ac.jp

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