Ashrae Weather Data Files
WEATHER DATA FOR BUILDING ENERGY SIMULATIONS. Duval County Esol Program In Florida. • Developed weather sets for ASHRAE. Data to create usable hourly weather files. ASHRAE Climatic Data Activities. Than 3200 ‘typical’ hourly data files for use in. – This standard covers weather data used in ASHRAE standards.
_____Public Review Draft Proposed Addendum. Weather data files that will be on the final. 2.1 This standard covers climatic data used in ASHRAE standards. The Department of Energy has licensed the IWEC data from ASHRAE. Our license with ASHRAE allows us to. This set of 270 typical hourly data weather files.
Weather Data Wiki Why We Care About Weather • appropriate design • accounting for the future • accounting for urban environments • peak load design and resiliency Types of weather files • Design Days (.ddy) • TMY,TMY2,TMY3 (.epw) • TMY3,TMY5,TMY7,TMY10 (.epw) • XMY (.epw) • AMY (.epw) Design Day Weather • ASHRAE 2013 Design Conditions Definitions in E+ format:, • ASHRAE 2009 Design Data.ddy files are distributed with TMY3 data for that location, if available. • Future weather files Climate change is moving fast enough that TMY3 datasets will no longer be valid for loads or energy modeling several decades out. Future weather is predicted by using a global circulation model (GCM) at fine resolution, and simulating future weather.
There are two ways to generate: (1) morphing and (2) probabilistic generation from climate model. • ( $) Generates future weather files for 250 cities at 2020, 2050, and 2080, and will soon have design days as well. It makes these files from the TMY3 file by a scaling factor derived from 14 GCM models running the RCP 8.5 scenario of the IPCC. • ( Free) The climate change world weather file generator (CCWorldWeatherGen) allows you to generate climate change weather files for world-wide locations ready for use in building performance simulation programs. • ( Free, Data only*) Future weather data for different climate scenarios. Need to translate into.epw format.