Extreme reference years for building energy performance simulation
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SubjectTest reference year; Multi-year analysis; Building energy simulation; Building energy performance; Climate; ING-IND/11
The analysis of building energy performance resilience requires also the assessment of energy needs under untypical boundary conditions. This implies the adoption of reference years remarkably warmer or colder than typical ones. Nevertheless, while several researches in the literature and technical standards provide instructions to build typical years, there is no standard procedure for the extreme ones. In this work, starting from the approach described by EN ISO 15927-4:2005 for typical reference years, TRYEN, based on Finkelstein-Schafer statistics of weather variables, a new method is proposed to develop hot and cold extreme reference years, ERYh and ERYc, from multi-year hourly weather series. Two alternatives are evaluated for the selection of reference months - according just to dry bulb temperature statistics or also considering global horizontal irradiance ones. To discuss the representativeness of proposed reference years against multi-year series, TRNSYS simulations are run for 48 simplified buildings in five Italian climates.
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Perningotto G; Prada A; Gasparella A (TU Wien, 2017)Typical years are developed from the analysis of multi-year series, selecting actual months to assembly in a single reference year, representative of the long-term typical weather. Some statistical techniques are generally ...
Analysis and improvement of the representativeness of EN ISO 15927-4 reference years for building energy simulation Pernigotto G; Prada A; Gasparella A; Hensen JLM (2014)Representativeness of weather inputs is crucial to limit the global uncertainty of building energy simulation results. The length of the multi-year weather data series and the methodology used for the typical month selection ...
Pernigotto G; Prada A; Baggio P; Gasparella A; Mahdavi A (IBPSA, 2015)This research work investigates the impact of the choice of solar irradiation models on the hourly energy needs, considering 72 simplified reference buildings in two European climates: Rome and Vienna. The full combination ...