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Optimal operation of heat source and air conditioning system with thermal storage tank using nonlinear programming

Hitoi Ono, Yuichi Ohtani, Minoru Matsuo, Toru Yamaguchi and Ryohei Yokoyama

Energy, 2021, vol. 222, issue C

Abstract: In this paper, we consider the optimal operations of a thermal system for heat source and air conditioning system with a thermal storage tank using nonlinear programming. Firstly, we develop the mathematical model of the system components by applying the energy and mass balance principles. Secondly, the static balance of the system model is validated by the operational data. Thirdly, by applying the nonlinear programming method, IPOPT (Interior Point OPTimizer), to the mathematical model, we show the optimal operations of a thermal system under variable conditions of chilled water temperature, such as the number of person, heat generating equipment, outdoor and indoor air conditions. Finally, dynamic simulation results showed that, the variable set points of the chilled water temperature for thermal storage tank have an effect on reducing the running cost of a day.

Keywords: Optimal operation; Heat source system; Air conditioning system; Thermal storage tank; Nonlinear programming (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:222:y:2021:i:c:s0360544221001857

DOI: 10.1016/j.energy.2021.119936

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