Evaluation of an all-sky meteorological radiation model against long-term measured hourly data

摘要: Abstract With the proliferation of cheap, high performance desktop computers, building services profession is demanding detailed (hourly or sub-hourly) weather data for simulation, optimum plant sizing and design buildings which may use passive solar and/or natural ventilation features. Even in a developed country, such as United Kingdom, there dearth measured long-term radiation daylight data. Herein, simple precise meteorological model (MRM) presented, enables computation horizontal beam diffuse to be accomplished, given four basic parameters—hourly dry- wet-bulb temperatures, atmospheric pressure bright sunshine duration. These are available worldwide very many locations. The present semi-general nature demonstrated by its applicability ten widespread locations Kingdom. hour-by-hour insolation. Statistical analysis 100 station-years hourly indicates that MRM can compute insolation with an average error 9% clear skies 25% overcast conditions. On monthly-averaged daily basis, this reduces 3%.