NDLI: Computational fluid dynamics-based thermal modeling for efficient building energy management

Content Provider	IEEE Xplore Digital Library
Author	Rao, D.M.K.K.V. Ukil, A.
Copyright Year	2015
Description	Author affiliation: Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore (Ukil, A.) \|\| Sch. of Mech. & Aerosp. Eng., Nanyang Technol. Univ., Singapore, Singapore (Rao, D.M.K.K.V.)
Abstract	Heating, Ventilating and Air-conditioning systems have a significant share in the energy consumed by buildings. Development of a highly accurate thermal model is the first step in designing an efficient air-conditioning system. In this regard, this paper proposes a semi-nonlinear thermal model - ordinary differential equation with parameters as nonlinear functions of ambient temperature and cooling air flow-rate - to approximate the temperature solutions simulated using computational fluid dynamics (CFD). A three-roomed building, equipped with an air-conditioning system is modeled, and Navier-Stokes equations are solved to simulate the temporal evolution of temperatures for different ambient temperatures and cooling air flow-rates. The steady-state temperatures and transient solution parameters of the thermal model are assumed to be polynomial functions of ambient temperature and flow-rate, and are determined by minimizing the error between the thermal model- and the CFD-based final and transient temperature solutions, respectively. The proposed thermal model of third-order, with nonlinear type transient coefficients is shown to predict the temporal evolution of temperature accurately. The high prediction accuracy of the proposed thermal model makes it to be a potential candidate for the design of an optimal temperature regulator.
Sponsorship	IEEE
Starting Page	000481
Ending Page	000486
File Size	464633
Page Count	6
File Format	PDF
e-ISBN	9781479917624
DOI	10.1109/IECON.2015.7392146
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-11-09
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Mathematical model Atmospheric modeling Solid modeling Steady-state Buildings Computational modeling Data models
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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