khaoula.rahrah Posted May 15 Share Posted May 15 (edited) Hello PvSyst Team In the case of bifacial Pv Please tell me what is the indication of Global inclined plane is the same Global inclined plan of front face (GTI_front) or no . because when I enter the value of albedo=20% ,and albedo=0% ,I find the almost equal values of Global inclined plane . you will find attached the screenshots Also des it existed a GTI_rear values in PvSyst ? tell me please ! My best regards Edited May 15 by khaoula.rahrah Link to comment Share on other sites More sharing options...
Agnes Bridel Posted May 17 Share Posted May 17 Hi, GlobInc is the incident global irradiation in the collector plane on the front side. For parameters related to bifacial system, you could refer to the help page https://www.pvsyst.com/help/bifacial_results.htm for the definition of each variable. In general, there is GlobBak that represents the effective irradiance on the rear side. It includes direct and diffuse sky irradiance as well as the irradiance reflected from the ground. For all these three irradiance components, the shading and IAM losses are accounted for. You then have the possibility to export these variables in "Advanced simulation > Output File". Link to comment Share on other sites More sharing options...
khaoula.rahrah Posted May 17 Author Share Posted May 17 Thank you for your valuable replay ! So i would to know that incident global irradiation in the collector plane on the front side "GlobInc" and Global inclined plan of front face "GTI_front" are the same or no. My best regards Link to comment Share on other sites More sharing options...
Agnes Bridel Posted May 17 Share Posted May 17 Yes you're right! Link to comment Share on other sites More sharing options...
khaoula.rahrah Posted May 18 Author Share Posted May 18 Thank you so much ! Link to comment Share on other sites More sharing options...
khaoula.rahrah Posted May 21 Author Share Posted May 21 But sir, I don't find GlobBak in my PvSyst programme version 7.4 What i do in that case ? Thank you in advance Link to comment Share on other sites More sharing options...
Agnes Bridel Posted May 21 Share Posted May 21 Hi, The "GlobaBak" variable should appear if the bifacial system is activated. Could you please verify if the bifacial system is activated when defining your system? Link to comment Share on other sites More sharing options...
khaoula.rahrah Posted May 21 Author Share Posted May 21 Hello Please tell me how i activate the bifacial system ,i don't understand your suggestion because i working on bifacial pv system ! My best regards Link to comment Share on other sites More sharing options...
Agnes Bridel Posted May 22 Share Posted May 22 The bifacial system is available in the "System" part and is visible when you choose a bifacial module. You can define the bifacial model by clicking on "Bifacial system". The "GlobBak" variable should then appear in the simulation variables list in "Advanced Simulation > Output file". Link to comment Share on other sites More sharing options...
khaoula.rahrah Posted May 22 Author Share Posted May 22 Yes it is done thank you so much ! Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now