Development of HVAC diffuser unit for task and ambient air conditioning allowing user to control built-in fan - Evaluation of air supply mode by subjective experiment and field measurement in office

Takashi Akimoto; Naoya Odagiri; Yoichi Nakashima; Seiji Miyazaki; Takashi Yanai; Takashi Matsumoto; Daiki Yamashina; Nana Araki

doi:10.1051/e3sconf/201911101025

Development of HVAC diffuser unit for task and ambient air conditioning allowing user to control built-in fan - Evaluation of air supply mode by subjective experiment and field measurement in office

Takashi Akimoto, Naoya Odagiri, Yoichi Nakashima, Seiji Miyazaki, Takashi Yanai, Takashi Matsumoto, Daiki Yamashina, Nana Araki

Research output: Contribution to journal › Conference article › peer-review

1 Citation (Scopus)

Abstract

HVAC diffusers have been developed that have dual functions for task and ambient air conditioning. In this study, we evaluated comfort according to air supply mode, strong or fluctuation mode, through a subjective experiment. We found that the fluctuation mode maintained greater comfort for longer compared with the strong mode under continuous airflow exposure. Therefore, the fluctuation mode is considered suitable for long-duration use. Moreover, field measurements in an actual office showed that the fluctuation mode was superior in terms of both comfort and energy saving compared with conventional air conditioning.

Original language	English
Article number	01025
Journal	E3S Web of Conferences
Volume	111
DOIs	https://doi.org/10.1051/e3sconf/201911101025
Publication status	Published - 2019 Aug 13
Event	13th REHVA World Congress, CLIMA 2019 - Bucharest, Romania Duration: 2019 May 26 → 2019 May 29

ASJC Scopus subject areas

Environmental Science(all)
Energy(all)
Earth and Planetary Sciences(all)

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10.1051/e3sconf/201911101025

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Akimoto, T., Odagiri, N., Nakashima, Y., Miyazaki, S., Yanai, T., Matsumoto, T., Yamashina, D., & Araki, N. (2019). Development of HVAC diffuser unit for task and ambient air conditioning allowing user to control built-in fan - Evaluation of air supply mode by subjective experiment and field measurement in office. E3S Web of Conferences, 111, [01025]. https://doi.org/10.1051/e3sconf/201911101025

Development of HVAC diffuser unit for task and ambient air conditioning allowing user to control built-in fan - Evaluation of air supply mode by subjective experiment and field measurement in office. / Akimoto, Takashi; Odagiri, Naoya; Nakashima, Yoichi et al.

In: E3S Web of Conferences, Vol. 111, 01025, 13.08.2019.

Research output: Contribution to journal › Conference article › peer-review

Akimoto, T, Odagiri, N, Nakashima, Y, Miyazaki, S, Yanai, T, Matsumoto, T, Yamashina, D & Araki, N 2019, 'Development of HVAC diffuser unit for task and ambient air conditioning allowing user to control built-in fan - Evaluation of air supply mode by subjective experiment and field measurement in office', E3S Web of Conferences, vol. 111, 01025. https://doi.org/10.1051/e3sconf/201911101025

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abstract = "HVAC diffusers have been developed that have dual functions for task and ambient air conditioning. In this study, we evaluated comfort according to air supply mode, strong or fluctuation mode, through a subjective experiment. We found that the fluctuation mode maintained greater comfort for longer compared with the strong mode under continuous airflow exposure. Therefore, the fluctuation mode is considered suitable for long-duration use. Moreover, field measurements in an actual office showed that the fluctuation mode was superior in terms of both comfort and energy saving compared with conventional air conditioning.",

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AU - Miyazaki, Seiji

AU - Yanai, Takashi

AU - Matsumoto, Takashi

AU - Yamashina, Daiki

AU - Araki, Nana

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N2 - HVAC diffusers have been developed that have dual functions for task and ambient air conditioning. In this study, we evaluated comfort according to air supply mode, strong or fluctuation mode, through a subjective experiment. We found that the fluctuation mode maintained greater comfort for longer compared with the strong mode under continuous airflow exposure. Therefore, the fluctuation mode is considered suitable for long-duration use. Moreover, field measurements in an actual office showed that the fluctuation mode was superior in terms of both comfort and energy saving compared with conventional air conditioning.

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Development of HVAC diffuser unit for task and ambient air conditioning allowing user to control built-in fan - Evaluation of air supply mode by subjective experiment and field measurement in office

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