By using Radiance and the thermal resistance value between vertical blind and glass, it is possible to calculate the cooling and heating load at any azimuth angle of the vertical blind. We created the 2010s reference weather data from the Tokyo 2010-2019 meteorological data. This time, using the newly created meteorological data, a vertical blind is installed at opening of the office building, and a cooling/heating load simulation is performed by automatic control. As a result, the greatest effect of reducing the cooling load is the minimum heat gain control.
{"title":"縦型ブラインドの熱特性","authors":"Kyoichiro ISOZAKI, Hitoshi TAKEDA","doi":"10.3130/aije.88.789","DOIUrl":"https://doi.org/10.3130/aije.88.789","url":null,"abstract":"By using Radiance and the thermal resistance value between vertical blind and glass, it is possible to calculate the cooling and heating load at any azimuth angle of the vertical blind. We created the 2010s reference weather data from the Tokyo 2010-2019 meteorological data. This time, using the newly created meteorological data, a vertical blind is installed at opening of the office building, and a cooling/heating load simulation is performed by automatic control. As a result, the greatest effect of reducing the cooling load is the minimum heat gain control.","PeriodicalId":38500,"journal":{"name":"Journal of Environmental Engineering (Japan)","volume":"240 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135373440","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study aims to evaluation of carrying performance when water saving toilets are connected to drainage pipes in various configurations, and makes use of it for plumbing design. Internationally, ISO 31600:2022 was established as a standard for labeling and performance testing of water-using equipment, including toilets. However, this standard is limited to equipment and do not take into account the waste carrying performance. In this report, carrying performance when the amount of flushing water, the pipe diameter, and the gradient are changed in straight pipe is experimentally identified.
{"title":"排水横管の管径変化に伴う節水形大便器の器具排水特性と搬送性能の実験的把握","authors":"Kazuya AKIYAMA, Masayuki OTSUKA, Yusuke KUBOTA, Hiroshi SHIGEFUJI","doi":"10.3130/aije.88.799","DOIUrl":"https://doi.org/10.3130/aije.88.799","url":null,"abstract":"This study aims to evaluation of carrying performance when water saving toilets are connected to drainage pipes in various configurations, and makes use of it for plumbing design. Internationally, ISO 31600:2022 was established as a standard for labeling and performance testing of water-using equipment, including toilets. However, this standard is limited to equipment and do not take into account the waste carrying performance. In this report, carrying performance when the amount of flushing water, the pipe diameter, and the gradient are changed in straight pipe is experimentally identified.","PeriodicalId":38500,"journal":{"name":"Journal of Environmental Engineering (Japan)","volume":"240 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The purpose of this study is to identify the effects of chromaticity shift from the Planckian locus duv on the perception of the tinted colour of illumination and the spatial brightness. All 240 conditions with 3 levels of the illuminance, 4 conditions of the correlated colour temperature, 5 levels of duv and 4 patterns of interior reflectance including non-uniform luminance distribution were experimented.
{"title":"EFFECTS OF CHROMATICITY DIFFERENCE FROM PLANCKIAN LOCUS <i>d<sub>uv</sub></i> OF LIGHTING ON TINTED COLOUR OF ILLUMINATION AND BRIGHTNESS IN SPACE (PART 2): EXPERIMENT USING A SCALE MODEL WITH NON-UNIFORM LUMINANCE DISTRIBUTION","authors":"Etsuko MOCHIZUKI","doi":"10.3130/aije.88.771","DOIUrl":"https://doi.org/10.3130/aije.88.771","url":null,"abstract":"The purpose of this study is to identify the effects of chromaticity shift from the Planckian locus duv on the perception of the tinted colour of illumination and the spatial brightness. All 240 conditions with 3 levels of the illuminance, 4 conditions of the correlated colour temperature, 5 levels of duv and 4 patterns of interior reflectance including non-uniform luminance distribution were experimented.","PeriodicalId":38500,"journal":{"name":"Journal of Environmental Engineering (Japan)","volume":"31 18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135373434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The thermal insulation performance of ALC panels is affected by the reinforcing steel bars contained within them. In this paper, the influence of reinforcing bars and metal fittings called spacers on the thermal insulation performance of ALC panels is investigated. Measurements were made using the calibrated hot box method on several ALC panels with different conditions of reinforcement bars and spacers, and the measured conditions were reproduced by CFD analysis. It was confirmed that the apparent thermal conductivity obtained by CFD simulations corresponded to measured ones.
{"title":"校正熱箱法に基づく測定とCFD解析による補強鉄筋を含むALCパネルの断熱性能の検討","authors":"Yasushi KONDO, Yasuhiro NAGASAWA, Wataru NARITA","doi":"10.3130/aije.88.779","DOIUrl":"https://doi.org/10.3130/aije.88.779","url":null,"abstract":"The thermal insulation performance of ALC panels is affected by the reinforcing steel bars contained within them. In this paper, the influence of reinforcing bars and metal fittings called spacers on the thermal insulation performance of ALC panels is investigated. Measurements were made using the calibrated hot box method on several ALC panels with different conditions of reinforcement bars and spacers, and the measured conditions were reproduced by CFD analysis. It was confirmed that the apparent thermal conductivity obtained by CFD simulations corresponded to measured ones.","PeriodicalId":38500,"journal":{"name":"Journal of Environmental Engineering (Japan)","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135372457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"EFFECT OF MODULATING OFFICE ROOM TEMPERATURE IN CONJUNCTION WITH DAILY RHYTHMS OF OCCUPANT PHYSIOLOGY, PSYCHOLOGY, AND WORK EFFICIENCY (PART 2): RESULTS OF SUBJECT EXPERIMENTS DURING HEATING PERIOD","authors":"Ryotaro Ishibashi, Mizuka Shimoyama, Toshiki Watanabe, Hiroki Takahashi, A. Yokoe, Teruyuki Saito, Hideki Tanaka","doi":"10.3130/aije.88.698","DOIUrl":"https://doi.org/10.3130/aije.88.698","url":null,"abstract":"","PeriodicalId":38500,"journal":{"name":"Journal of Environmental Engineering (Japan)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44970944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"冷房設定温度が寒冷地・温暖地の吸放湿材貼付効果に及ぼす影響に関する解析的検討","authors":"Shiho Hirooka, Y. Kishimoto","doi":"10.3130/aije.88.670","DOIUrl":"https://doi.org/10.3130/aije.88.670","url":null,"abstract":"","PeriodicalId":38500,"journal":{"name":"Journal of Environmental Engineering (Japan)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48137640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"PREDICTIVE CONTROL BY NEURAL NETWORK OF HOT-WATER FLOOR HEATING SYSTEM WITH SHEET PHASE CHANGE MATERIAL INTO THE FLOOR OF RC APARTMENT HOUSE.","authors":"Yuki Takane, Hideki Takamura","doi":"10.3130/aije.88.649","DOIUrl":"https://doi.org/10.3130/aije.88.649","url":null,"abstract":"","PeriodicalId":38500,"journal":{"name":"Journal of Environmental Engineering (Japan)","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46268737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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