Does solar load model accommodate diffuse radiations?

B_R_Khan · December 24, 2021, 04:22

Hi!

I wanted to simulate solar radiations on bifacial solar panel in openFoam. I used solar load model in radiation properties and defined diffuseSolarRad in solar load model. The user guide of solar load model says: "The first reflected fluxes can be optionally included. A view factors method is needed in order to include diffusive surface to surface fluxes." I am confused that do I need to include viewfactor modeling in order to accomodate reflected flux on back side of bifacial solar panel? Viewfactor model requires qr as a boundary condition as input while qr is the parameter I want to calculate through solar ray tracing. Please guide me.

Thanks!

TianJoshua · January 2, 2022, 04:39

HI,B_R_Khan
Whether you use the viewfactor modeling,I think it depends on your model.
You can analysis it on the meaning of viewfactor.

B_R_Khan · January 10, 2022, 02:28

Quote:

Originally Posted by TianJoshua

HI,B_R_Khan
Whether you use the viewfactor modeling,I think it depends on your model.
You can analysis it on the meaning of viewfactor.

I need to integrate diffuse solar irradiance plus the reflected irradiance from ground that is reaching the panel. Is view factor required for this problem or will solar load model be enough?

December 24, 2021, 04:22	Does solar load model accommodate diffuse radiations?	#1
B_R_Khan Member Bushra Rasheed Join Date: Dec 2020 Posts: 97 Rep Power: 5	Hi! I wanted to simulate solar radiations on bifacial solar panel in openFoam. I used solar load model in radiation properties and defined diffuseSolarRad in solar load model. The user guide of solar load model says: "The first reflected fluxes can be optionally included. A view factors method is needed in order to include diffusive surface to surface fluxes." I am confused that do I need to include viewfactor modeling in order to accomodate reflected flux on back side of bifacial solar panel? Viewfactor model requires qr as a boundary condition as input while qr is the parameter I want to calculate through solar ray tracing. Please guide me. Thanks!

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Table bounds warnings at: END OF TIME STEP	CFXer	CFX	4	July 17, 2020 00:44
Turned on solar load model, but solar heat flux in the counter plot still remain 0?	szhang	FLUENT	0	December 1, 2018 12:43
Using radiation model for simulation of flat plate solar collector	marjanbn	FLUENT	1	February 24, 2017 18:22
fresher in heat transfer and solar load model	itsme_kit	FLUENT	4	January 11, 2016 13:12
Wrong flow in ratating domain problem	Sanyo	CFX	17	August 15, 2015 07:20

January 2, 2022, 04:39		#2
TianJoshua New Member tiandong Join Date: Jul 2021 Posts: 4 Rep Power: 5	HI,B_R_Khan Whether you use the viewfactor modeling,I think it depends on your model. You can analysis it on the meaning of viewfactor.