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http://hdl.handle.net/10397/77611
Title: | A thermal comfort based controller for a direct expansion air conditioning system | Authors: | Yan, H Niu, J Deng, S |
Issue Date: | 2017 | Source: | Energy procedia, 2017, v. 142, no. , p. 1817-1822 | Abstract: | For building HVAC systems, better indoor thermal comfort control and higher energy efficiency could be achieved using a thermal comfort index as the controlled variable instead of air temperature. Although there can be various simplification approaches, indoor air humidity has been commonly assumed constant or left uncontrolled. Neglecting the importance of indoor humidity control would adversely affect the control performance of an air conditioning system. In addition, it is difficult to control local air velocity in the vicinity of a user. Therefore, either a constant local air velocity or an air velocity varying to a preset pattern was assumed in a thermal comfort model. In this paper, a thermal comfort based controller is developed and reported. Controllability tests were carried out which showed that better energy efficiency of the DX A/C system could be achieved when a higher local fan speed was used. | Keywords: | Air conditioning Air velocity Control Direct expansion Thermal comfort |
Publisher: | Elsevier | Journal: | Energy procedia | EISSN: | 1876-6102 | DOI: | 10.1016/j.egypro.2017.12.569 | Description: | 9th International Conference on Applied Energy, ICAE 2017, Cardiff, United Kingdom21-24 Aug 2017 | Rights: | © 2017 The Authors. The following publication Yan, H., Niu, J., & Deng, S. (2017). A thermal comfort based controller for a direct expansion air conditioning system. Energy Procedia, 142, 1817-1822 is available athttps://dx.doi.org/10.1016/j.egypro.2017.12.569 |
Appears in Collections: | Conference Paper |
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Yan_Thermal_Comfort_Controller.pdf | 531.18 kB | Adobe PDF | View/Open |
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