2022/12/08 更新

写真a

フカワ ユウタ
深和 佑太
Scopus 論文情報  
論文数: 0  Citation: 0  h-index: 1

Citation Countは当該年に発表した論文の被引用数

所属
理工学術院 創造理工学部
職名
助手
 

研究分野

  • 建築環境、建築設備

研究キーワード

  • 熱的快適性

  • 省エネルギー

  • 室内環境

論文

  • Field study on occupants’ subjective symptoms attributed to overcooled environments in air-conditioned offices in hot and humid climates of Asia

    Yuta Fukawa, Ryota Murakami, Masayuki Ichinose

    Building and Environment   195   107741 - 107741  2021年05月

    DOI

    Scopus

    1
    被引用数
    (Scopus)
  • Study on the Thermal Performance of Office Spaces in the Tropics: A Case Study in Singapore

    Steve Kardinal Jusuf, Masayuki Ichinose, Yuta Fukawa, Sattayakorn Sutida

    SMART AND HEALTHY WITHIN THE TWO-DEGREE LIMIT (PLEA 2018), VOL 1     403 - 408  2018年

     概要を見る

    Commercial and office buildings often have problems on the aspects of indoor thermal environment and energy performances. The actual performance of these types of buildings, most of the time, are different from the desired performance. A data collection was conducted in an office space of a university building in Singapore as part of the ongoing study, measuring the environmental performance of office buildings across Southeast Asian countries. The objective measurement on the thermal condition shows that most measurement points across office space is at the colder side of the comfort zone. This finding is supported by the survey results where only about 65% of occupants voted for "slightly cool", "neutral" and "slightly warm" and about 22% of occupants showed "cold" related symptoms on their legs, hands and body at the end of working hours. The calculated neutral temperature range was generally from 24 degrees C to 26 degrees C, while the measured room temperature was mostly below 24 degrees C.

  • Field investigation on unacceptable sensation of thermal environment in Taiwanoffice

    Yuta Fukawa, Masayuki Ichinose, Eriko Tokuda

    Proceedings of 33rd PLEA International Conference: Design to Thrive, PLEA 2017   1   1076 - 1083  2017年

     概要を見る

    The average thermal sensation of occupants in the hot and humid region of Asia is different from that of Europeans and Americans. Office occupants in buildings equipped with air conditioners tend to find the thermal environment uncomfortable due to individual differences of thermal sensation. In this research, the thermal environment was measured in two office buildings in Taipei during summer. The Occupants' sensation of the thermal environment was recorded using a voting machine developed by team researchers. Thirty-six occupants were requested to report the feeling of an unacceptable thermal environment by pressing a red or blue button on the voting machine when feeling hot or cold, respectively. The results show that operative temperature and absolute humidity varied at the times an individual was out of the comfort zone based on ASHRAE Standard 55(2013). Although all individuals were in the same environment, some occupants reported feeling unacceptably, even though they were at a temperature and humidity level considered to be within the comfort zone. About 60% of unacceptable votes reported feeling cold while within the comfort zone. This research suggests that it is possible to revise existing comfort criteria in offices in Taiwan or other hot or humid regions in Asia.

学内研究費(特定課題)

  • 機械学習を用いた快不快感の発生トリガー解明に関する研究

    2021年  

     概要を見る

    ワークプレイスにおける執務者の環境満足度は、温熱、光、空気質などの室内環境品質に影響を受けている。本研究では、空間印象が満足度に及ぼす影響を明らかにすることを目的とし、ベイズ推論を用いて空間印象を考慮した満足度予測モデルを構築した。日本におけるオフィスの実測データベースを用いて、実測値から環境満足度を予測するための回帰式を導出した。満足度予測のための回帰パラメータの事後分布はPyStanを用いて推定された。実測値から予測される総合満足度の分布は、満足度分布の真値と概ね一致した。今後、さらなる分析や予測モデルの改良を行い、日本建築学会環境系論文集や海外ジャーナルなどの査読付き論文集に投稿を行う予定である。