[TRNSYS-users] Strange behaviour type 50b

[Benjamin Stobbe]

Dear Alastair,

 

Thank u for answering. For sure I took the area in the calculations so I was
comparing the output of the solar panel with the solar irradiance times the
area of the solar panel. This is why I cannot figure out the results.

 

Best regards,

 

Benjamin Stobbe 

 

Van: TRNSYS-users [mailto:trnsys-users-bounces at lists.onebuilding.org] Namens
Alastair McDowell
Verzonden: dinsdag 10 november 2015 23:12
Aan: 'TRNSYS users mailing list at OneBuilding.org'
<trnsys-users at lists.onebuilding.org>
Onderwerp: Re: [TRNSYS-users] Strange behaviour type 50b

 

Hi Benjamin,

 

Solar irradiance has the units of [kJ/hr.m^2], i.e. energy rate per unit
square meter. It is quite likely that the magnitude of thermal energy yield
(kJ) will exceed the integrated solar irradiance (kJ/m^2), if the surface
area of your solar panels is greater than 2-3 m^2, depending on the thermal
efficiency of the panels. Make sure you have taken the units and area into
account in your calculations.

 

Kind regards,

 

Alastair McDowell

Engineering Consultant

Energy Analysis & Engineering - Enabling innovation for a sustainable future

T: +61 450 600 842

E: alastair.mcdowell at energyae.com <mailto:alastair.mcdowell at energyae.com> 

608 Harris St Sydney NSW 2007 Australia | http://www.energyae.com
<http://www.energyae.com/> 

 

  _____  

From: TRNSYS-users < <mailto:trnsys-users-bounces at lists.onebuilding.org>
trnsys-users-bounces at lists.onebuilding.org> on behalf of Benjamin Stobbe <
<mailto:benjamin_stobbe at hotmail.com> benjamin_stobbe at hotmail.com>
Sent: Tuesday, 10 November 2015 6:24 PM
To: 'TRNSYS users mailing list at OneBuilding.org'
Subject: [TRNSYS-users] Strange behaviour type 50b 

 

Dear all,

 

During my project with the hybrid solar panel type 50b I found out some
strange behaviour during the total yield measurements. The solar panels
produce more thermal energy than irradiance they receive, can someone
explain me how this is possible and if maybe make a mistake somewhere.

 

Best regards,

 

Benjamin Stobbe

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