Hi Samuele, The best solution is to use an equation, in which you use the function GT(). - Add an equation component in your project. - Double click on the equation component, and add a new input, called "Ib". You will connect the beam radiation from the radiation processor to this input. - Create another input called "cf". You will connect the output from the forcing function Type14. - Now, create a new equation: cf2 = cf*GT(ib,0)
The function GT(a,b) returns 1 if a>b. You can find more information about the available functions in the manual Volume7-Section7.6.9. Best regards, Diego Samuele wrote: > Dear all, > > I'm trying to simulate a simple system in which there is a pump and > a linear parabolic concentrator but I don't have enough information for: > > - build a forcing function for the pump by which it can work from 6 am > to 18 pm and only if beam radiation is higher than a fixed value; > > - update values of direct normal radiation in the weather data file, > or create a new weather data file ( with inputs I would insert ) which > could be read by Trnsys. > > Could anyone give me any advices? > > Thanks in advance, > Samuele Mazzei. > ------------------------------------------------------------------------ > > _______________________________________________ > TRNSYS-users mailing list > [email protected] > https://www.cae.wisc.edu/mailman/listinfo/trnsys-users > -- Diego A. Arias TRNSYS Coordinator Solar Energy Laboratory University of Wisconsin - Madison 1500 Engineering Drive Madison, WI 53706 _______________________________________________ TRNSYS-users mailing list [email protected] https://www.cae.wisc.edu/mailman/listinfo/trnsys-users
