Hello, i use EnergyPlus with .epw files and run my simulations with daylight saving time, my answers are in the same order that your questions:
1.If your .epw are a typical year (a theorical year of 5 or more years), in each hour of each day the values will be a representative average of the years that conform the typical year. If your .epw are a test reference year, the values of each hour concern only for a specific year choosing for the simulation.
2.The .epw has a format and structure concerning only for the specific values of the climatological variable contained, the daylight saving period is configured in your simulation software.
3.The .epw has in its structure the data of latitude and longitude, but in addition you have to put this values in your simulation software and it calculates the solar position and shadows during the simulation process.
Hope this info help you, Greetings community!
- Hello Again, thanks for specify your doubts. The first temperature of the new .epw file have to be an average exterior temperature (mean air temperature) from 00:00-01:00, because the average temperature value will be representative from the first hour, then the next average hour value will be the representative of the second hour and successively
- The simulation program calculates the solar track (hourly use + or - hours from GMT) using solar geometry. This is possible because the particular geographical ubication values latitude, longitude, and high above sea specified in the .epw data.
- Because you will use an .epw and a part of its essential data in the structure is its geographical ubication, its not possible to work without solar track, consequently each point on the planet have an solar and specified track.
- The hip, sin, cos, zenith, etc. are values that the program needs to calculate solar trayectory based in solar geometry, this data are very important for the simulation, and each city has specified values, again it depends of your point in the planet for work the simulation.
What simulation program will use? for which city will do the simulation?
Greetings community!
