Operating characteristics and efficiencies of an active chilled beam terminal unit under variable air volume mode. Chen, C., Cai, W., Wang, Y., Lin, C., & Wang, L. Applied Thermal Engineering, 85:71–79, June, 2015. ![Operating characteristics and efficiencies of an active chilled beam terminal unit under variable air volume mode [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Appropriately designing and maintaining temperature and relative humidity in a given space is essential for active chilled beam systems, where condensation should be strictly prevented. As a consequence, the Total Cooling Output Capacity (TCOC) of an active chilled beam system should be matched with the total cooling load of the applied space, as well as the Sensible Heat Ratio (SHR) of the system with the SHR of the space. From such a perspective, this paper for the first time explored the operating characteristics of a 2-way discharge active chilled beam terminal unit. Based on an experimentally verified model of the unit, a series of realistic simulations were carried out under various primary air volume flow rates and various chilled water volume flow rates. Inherent correlations between the TCOC and SHR were revealed. In the meanwhile, the operating efficiencies of the unit were also measured by an energy saving potential index ɛ, which is defined as the ratio of chilled water sensible cooling output capacity to the total sensible cooling output capacity. In addition, influences of different primary air and space conditions on the operating characteristics and efficiencies were studied. The results obtained in this study are expected to facilitate a better understanding of the active chilled beam terminal unit, so as to the designs, the operating principles, and the control strategies of active chilled beam systems for an improved indoor thermal environment.
@article{chen_operating_2015,
title = {Operating characteristics and efficiencies of an active chilled beam terminal unit under variable air volume mode},
volume = {85},
issn = {1359-4311},
url = {http://www.sciencedirect.com/science/article/pii/S1359431115002318},
doi = {10.1016/j.applthermaleng.2015.03.016},
abstract = {Appropriately designing and maintaining temperature and relative humidity in a given space is essential for active chilled beam systems, where condensation should be strictly prevented. As a consequence, the Total Cooling Output Capacity (TCOC) of an active chilled beam system should be matched with the total cooling load of the applied space, as well as the Sensible Heat Ratio (SHR) of the system with the SHR of the space. From such a perspective, this paper for the first time explored the operating characteristics of a 2-way discharge active chilled beam terminal unit. Based on an experimentally verified model of the unit, a series of realistic simulations were carried out under various primary air volume flow rates and various chilled water volume flow rates. Inherent correlations between the TCOC and SHR were revealed. In the meanwhile, the operating efficiencies of the unit were also measured by an energy saving potential index ɛ, which is defined as the ratio of chilled water sensible cooling output capacity to the total sensible cooling output capacity. In addition, influences of different primary air and space conditions on the operating characteristics and efficiencies were studied. The results obtained in this study are expected to facilitate a better understanding of the active chilled beam terminal unit, so as to the designs, the operating principles, and the control strategies of active chilled beam systems for an improved indoor thermal environment.},
urldate = {2018-06-13},
journal = {Applied Thermal Engineering},
author = {Chen, Can and Cai, Wenjian and Wang, Youyi and Lin, Chen and Wang, Lei},
month = jun,
year = {2015},
keywords = {Active chilled beam, Energy saving potential index, Operating characteristics, Sensible heat ratio, Total cooling output capacity, Variable air volume},
pages = {71--79},
}
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As a consequence, the Total Cooling Output Capacity (TCOC) of an active chilled beam system should be matched with the total cooling load of the applied space, as well as the Sensible Heat Ratio (SHR) of the system with the SHR of the space. From such a perspective, this paper for the first time explored the operating characteristics of a 2-way discharge active chilled beam terminal unit. Based on an experimentally verified model of the unit, a series of realistic simulations were carried out under various primary air volume flow rates and various chilled water volume flow rates. Inherent correlations between the TCOC and SHR were revealed. In the meanwhile, the operating efficiencies of the unit were also measured by an energy saving potential index ɛ, which is defined as the ratio of chilled water sensible cooling output capacity to the total sensible cooling output capacity. In addition, influences of different primary air and space conditions on the operating characteristics and efficiencies were studied. The results obtained in this study are expected to facilitate a better understanding of the active chilled beam terminal unit, so as to the designs, the operating principles, and the control strategies of active chilled beam systems for an improved indoor thermal environment.","urldate":"2018-06-13","journal":"Applied Thermal Engineering","author":[{"propositions":[],"lastnames":["Chen"],"firstnames":["Can"],"suffixes":[]},{"propositions":[],"lastnames":["Cai"],"firstnames":["Wenjian"],"suffixes":[]},{"propositions":[],"lastnames":["Wang"],"firstnames":["Youyi"],"suffixes":[]},{"propositions":[],"lastnames":["Lin"],"firstnames":["Chen"],"suffixes":[]},{"propositions":[],"lastnames":["Wang"],"firstnames":["Lei"],"suffixes":[]}],"month":"June","year":"2015","keywords":"Active chilled beam, Energy saving potential index, Operating characteristics, Sensible heat ratio, Total cooling output capacity, Variable air volume","pages":"71–79","bibtex":"@article{chen_operating_2015,\n\ttitle = {Operating characteristics and efficiencies of an active chilled beam terminal unit under variable air volume mode},\n\tvolume = {85},\n\tissn = {1359-4311},\n\turl = {http://www.sciencedirect.com/science/article/pii/S1359431115002318},\n\tdoi = {10.1016/j.applthermaleng.2015.03.016},\n\tabstract = {Appropriately designing and maintaining temperature and relative humidity in a given space is essential for active chilled beam systems, where condensation should be strictly prevented. As a consequence, the Total Cooling Output Capacity (TCOC) of an active chilled beam system should be matched with the total cooling load of the applied space, as well as the Sensible Heat Ratio (SHR) of the system with the SHR of the space. From such a perspective, this paper for the first time explored the operating characteristics of a 2-way discharge active chilled beam terminal unit. Based on an experimentally verified model of the unit, a series of realistic simulations were carried out under various primary air volume flow rates and various chilled water volume flow rates. Inherent correlations between the TCOC and SHR were revealed. In the meanwhile, the operating efficiencies of the unit were also measured by an energy saving potential index ɛ, which is defined as the ratio of chilled water sensible cooling output capacity to the total sensible cooling output capacity. In addition, influences of different primary air and space conditions on the operating characteristics and efficiencies were studied. 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