Towards Energy Efficiency: Forecasting Indoor Temperature via Multivariate Analysis

22 Apr 2015  ·  Zamora-Martinez Francisco, Romeu Pablo, Botella-Rocamora Paloma, Pardo Juan ·

The small medium large system (SMLSystem) is a house built at the Universidad CEU Cardenal Herrera (CEU-UCH) for participation in the Solar Decathlon 2013 competition. Several technologies have been integrated to reduce power consumption... One of these is a forecasting system based on artificial neural networks (ANNs), which is able to predict indoor temperature in the near future using captured data by a complex monitoring system as the input. A study of the impact on forecasting performance of different covariate combinations is presented in this paper. Additionally, a comparison of ANNs with the standard statistical forecasting methods is shown. The research in this paper has been focused on forecasting the indoor temperature of a house, as it is directly related to HVAC---heating, ventilation and air conditioning---system consumption. HVAC systems at the SMLSystem house represent 53.9% of the overall power consumption. The energy used to maintain temperature was measured to be 30--38.9% of the energy needed to lower it. Hence, these forecasting measures allow the house to adapt itself to future temperature conditions by using home automation in an energy-efficient manner. Experimental results show a high forecasting accuracy and therefore, they might be used to efficiently control an HVAC system. read more

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