1. A hybrid building thermal modeling approach for predicting temperatures in typical, detached, two-story houses.
- Author
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Cui, Borui, Fan, Cheng, Munk, Jeffrey, Mao, Ning, Xiao, Fu, Dong, Jin, and Kuruganti, Teja
- Subjects
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THERMAL properties , *THERMAL stresses , *THERMODYNAMIC state variables , *TEMPERATURE control , *ISOTHERMAL processes - Abstract
Highlights • An indoor temperature prediction solution for multiple-zone houses is provided. • Black-box methods can efficiently predict the dynamic building thermal performance. • The prediction of average temperatures in downstairs and upstairs is accurate. • Proposed modeling approach can be easily applied in different scenarios and houses. Abstract Within the residential building sector, the air-conditioning (AC) load is the main target for peak load shifting and reduction since it is the largest contributor to peak demand. By leveraging its power flexibility, residential AC is a good candidate to provide building demand response and peak load shifting. For realization of accurate and reliable control of AC loads, a building thermal model, which characterizes the properties of a building's envelope and its thermal mass, is an essential component for accurate indoor temperature or cooling/heating demand prediction. Building thermal models include two types: "Forward" and "Data-Driven". Due to time-saving and cost-effective characteristics, different data-driven models have been developed in a number of research studies. However, few developed models can predict temperatures in respective zones of a multiple-zone building with an open air path between zones e.g., an open stairwell connecting two floors of a home. In this research, a novel hybrid modeling approach is proposed to predict the average indoor air temperatures of both the upstairs and downstairs. This "hybrid" solution integrates both gray-box, i.e. RC model and black-box models. A developed RC model is used to predict the building mean temperature, and black-box model, in which the supervised machine learning algorithms are leveraged, is used to predict the temperature difference between the downstairs and upstairs. Compared with the measured data from a real house, the results obtained have acceptable/satisfactory accuracy. The method proposed in this study integrates the advantages of black-box and gray-box modeling. It can be used as a reliable alternative to predict the average temperatures in respective floors of typical detached two-story houses. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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