A Hybrid Dynamical Modelling and Control Approach for Energy Saving of Central Air Conditioning
Joint Authors
Liu, Yongqiang
Zhang, Yan
Liu, Yang
Source
Mathematical Problems in Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-07-08
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Currently in China, energy conservation and emission reduction are important initiatives for society.
Because of its large proportion of building energy consumption, several methods for building energy conservation have been introduced for central air conditioning.
This paper presents a hybrid system for a modelling and control approach.
By analysing the cooling capacity transfer process and the electromagnetic properties of pumps, the modelling is performed in a hybrid system framework.
Pumps are classified as fixed-frequency pumps, variable-frequency pumps, and switchable pumps; a switch control strategy is used in the chilled water system for supplying cooling capacity.
In order to adjust indoor temperature and save electrical energy, the cooling capacity allocation and average temperature methods are presented, which satisfy the goal of optimal control of real-time energy consumption.
As a numerical example, the temperature variation and cold regulation processes are simulated.
Three rooms are the control objects that lower the setting points, and pumps waste as little electrical energy as possible.
The results show 49.4% of water pump power consumption when compared with constant water volume technology.
The modelling and control approach is more advantageous in ensuring the success of reconstruction projects for central air conditioning.
American Psychological Association (APA)
Zhang, Yan& Liu, Yongqiang& Liu, Yang. 2018. A Hybrid Dynamical Modelling and Control Approach for Energy Saving of Central Air Conditioning. Mathematical Problems in Engineering،Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1208369
Modern Language Association (MLA)
Zhang, Yan…[et al.]. A Hybrid Dynamical Modelling and Control Approach for Energy Saving of Central Air Conditioning. Mathematical Problems in Engineering No. 2018 (2018), pp.1-12.
https://search.emarefa.net/detail/BIM-1208369
American Medical Association (AMA)
Zhang, Yan& Liu, Yongqiang& Liu, Yang. A Hybrid Dynamical Modelling and Control Approach for Energy Saving of Central Air Conditioning. Mathematical Problems in Engineering. 2018. Vol. 2018, no. 2018, pp.1-12.
https://search.emarefa.net/detail/BIM-1208369
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1208369