Cost-effective air conditioning control considering comfort level and user location

Sachio Godo, Kanae Matsui, Hiroaki Nishi

研究成果: Conference contribution

4 被引用数 (Scopus)

抄録

Heating, ventilation, and air conditioning (HVAC) are important factors for a building energy management system (BEMS). Efficient control of the air conditioning (AC) is required to maintain both energy efficiency and human comfort. However, AC control systems are expensive to install in buildings. In this study, a cost-effective AC control system intended for a library is proposed; it is also applicable to other facilities such as offices and meeting spaces. This system uses seating sensors for maintaining both energy efficiency and human comfort. Conventional AC control systems generally use expensive motion sensors or vision sensors as well as temperature and humidity sensors to acquire information on both the location and the comfort of users and to provide location-based control to users. In order to reduce sensor-based cost, the proposed system uses low-cost pressure sensors and maintains both energy efficiency and the comfort level. For detecting seat occupancy and locations, low-cost pressure sensors and low-power communication nodes are attached to chairs and they transmit seating data to the database of a server. A programmable logic controller is used to control the proposed AC system according to the information stored in the database. The system is evaluated using a 10-day experiment conducted at a library in Kurihara City in Miyagi prefecture of Japan. The results of energy efficiency evaluation in this experiment show that the proposed system can reduce electricity consumption by 18.3%. Through measurement of the predicted mean vote values of users of the library, the proposed system is found to be capable of maintaining user comfort.

本文言語English
ホスト出版物のタイトルProceedings, IECON 2014 - 40th Annual Conference of the IEEE Industrial Electronics Society
出版社Institute of Electrical and Electronics Engineers Inc.
ページ5344-5349
ページ数6
ISBN(印刷版)9781479940325
DOI
出版ステータスPublished - 2014 2 24
イベント40th Annual Conference of the IEEE Industrial Electronics Society, IECON 2014 - Dallas, United States
継続期間: 2014 10 302014 11 1

Other

Other40th Annual Conference of the IEEE Industrial Electronics Society, IECON 2014
国/地域United States
CityDallas
Period14/10/3014/11/1

ASJC Scopus subject areas

  • 電子工学および電気工学

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