Hello everyone,
I am working currently on a hotel project with rooms faced North and rooms faced South. I used the summer design day to size my AC.
According to the ddy file, the summer design day happens the 11th November.
I got my first results and the cooling capacity was below my expectation.
I started to dig in the different outputs and I noticed that the solar radiation for the 11th November is not the maximum of the year. The maximum happens the 13th June (my project is in Asia).
Then I changed the date of my summer design to the 13th June, simulated my file and then my cooling capacity meet my expectation.
My question : Is it a relevant method ? I guess that the date of the design is chosen according to the maximum outdoor temperature, what about the solar radiation ?
Thank you for your help
