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Jiang, Yi; Yan, da. HVAC system simulation and analysis based on uncertain inner heat gains. In: BUILDING PERFORMANCE SIMULATION ASSOCIATION CONFERENCE AND EXHIBITION, 10., 2007, Beijing. Anais… Beijing, 2007.
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Abstract

For large scale commercial buildings, the inner heat gains acts in an uncertain way in time serial and space. Presently, fixed schedule is generally used to describe the inner heat gains in the state of arts HVAC system simulation which couldn’t reflect the uncertain characteristic of inner heat gains. Therefore the simulation is required to use a range rather than just a certain point as the simulation input of the inner heat gains. This paper presents a new mathematic methodology to deal with the region operation, which including the definition, the operation rules, and the theoretical proving of region operation. This new mathematic methodology could be used to calculate the results under the interaction between uncertain factors and controlling means. By applying this region operation methodology into HVAC system simulation analysis, this paper presents a new HVAC system simulation method under uncertain inner heat gains. In order to testify the validity of this method, this paper provides a series of validation between new method and Monte Carlo method. With the applications of the HVAC system simulation method under uncertain heat gains, it shows the advantage of this new method.
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