Simplified optimal control in HVAC systems

Author

Komareji, M. ; Stoustrup, J. ; Rasmussen, H. ; Bidstrup, N. ; Svendsen, P. ; Nielsen, F.

Author_Institution

Dept. of Control & Autom., Aalborg Univ., Aalborg, Denmark

fYear

2009

Firstpage

1033

Lastpage

1038

Abstract

This paper presents simplified optimal control of a heating, ventilating, and air-conditioning (HVAC) system. This HVAC system is a typical one composed of two heat exchangers: an air-to-air heat exchanger (a rotary wheel heat recovery) and a water-to-air heat exchanger. First the optimal control strategy which was developed in is adopted for implementation in a real life HVAC system. Then the bypass flow problem is addressed and a controller is introduced to deal with this problem. Finally a simplified control structure is proposed for optimal control of the HVAC system. Results of implementing the simplified optimal controller show all control objectives are met (the cost function consists of electrical and thermal energy consumption by the HVAC system).

Keywords

HVAC; heat exchangers; heat recovery; optimal control; power consumption; HVAC system; air-to-air heat exchanger; bypass flow problem; cost function; electrical energy consumption; heating-ventilation-and-air-conditioning system; optimal control strategy; rotary wheel heat recovery; thermal energy consumption; water-to-air heat exchanger; Automatic control; Automation; Circuits; Control systems; Engineering management; Heat recovery; Optimal control; Project management; Technology management; Water heating;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Applications, (CCA) & Intelligent Control, (ISIC), 2009 IEEE

Conference_Location

Saint Petersburg

Print_ISBN

978-1-4244-4601-8

Electronic_ISBN

978-1-4244-4602-5

Type

conf

DOI

10.1109/CCA.2009.5280724

Filename

5280724