Pub Date : 2026-02-03DOI: 10.1016/j.csite.2026.107788
Wei Cong, Mingjun Han, Kun He, Wei Peng
{"title":"Estimation of Maximum Ceiling Temperature Rise in Tunnel Fires with Natural Ventilation at Various Longitudinal Fire Locations","authors":"Wei Cong, Mingjun Han, Kun He, Wei Peng","doi":"10.1016/j.csite.2026.107788","DOIUrl":"https://doi.org/10.1016/j.csite.2026.107788","url":null,"abstract":"","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"1 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2026-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146109690","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-03DOI: 10.1016/j.csite.2026.107759
Chuanxiao Zheng, Huaxu Tuo, Hao Lu, Yubo Liu
{"title":"Experimental study of dust accumulation of photovoltaic modules under different wind directions and its effect on power output characteristics","authors":"Chuanxiao Zheng, Huaxu Tuo, Hao Lu, Yubo Liu","doi":"10.1016/j.csite.2026.107759","DOIUrl":"https://doi.org/10.1016/j.csite.2026.107759","url":null,"abstract":"","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"1 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2026-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146109693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-03DOI: 10.1016/j.csite.2026.107787
Sewon Lee, Seonwoong Byun, Changhyun Baek, Kibong Kim, Dongchan Lee, Yongchan Kim
{"title":"Falling film evaporation heat transfer characteristics of R1336mzz(Z) for various tube types under high-temperature conditions","authors":"Sewon Lee, Seonwoong Byun, Changhyun Baek, Kibong Kim, Dongchan Lee, Yongchan Kim","doi":"10.1016/j.csite.2026.107787","DOIUrl":"https://doi.org/10.1016/j.csite.2026.107787","url":null,"abstract":"","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"43 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2026-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146109694","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-03DOI: 10.1016/j.csite.2026.107794
Masahito Nishikawara, Nathaniel J. O'Connor, Jamal S. Yagoobi
{"title":"Dielectrophoretically enhanced microchannel evaporator with a diverging electric field","authors":"Masahito Nishikawara, Nathaniel J. O'Connor, Jamal S. Yagoobi","doi":"10.1016/j.csite.2026.107794","DOIUrl":"https://doi.org/10.1016/j.csite.2026.107794","url":null,"abstract":"","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"117 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2026-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146109695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-03DOI: 10.1016/j.csite.2026.107795
Shiwen Fu, Jun Wang, Jilin Lei, Chengqian Zhu
{"title":"Influences of various turbocharging systems combined with Miller cycle on performance, combustion, and emissions of a heavy-duty diesel engine at high altitude","authors":"Shiwen Fu, Jun Wang, Jilin Lei, Chengqian Zhu","doi":"10.1016/j.csite.2026.107795","DOIUrl":"https://doi.org/10.1016/j.csite.2026.107795","url":null,"abstract":"","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"8 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2026-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146109692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-03DOI: 10.1016/j.csite.2026.107799
Zhimin Cui, Yaping Wang, Shaomin Xie
{"title":"Optimizing Integrated Energy Systems with a Virtual Energy Station Framework: Exergy-Based Scheduling and Multi-Energy Integration","authors":"Zhimin Cui, Yaping Wang, Shaomin Xie","doi":"10.1016/j.csite.2026.107799","DOIUrl":"https://doi.org/10.1016/j.csite.2026.107799","url":null,"abstract":"","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"294 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2026-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146109696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-02DOI: 10.1016/j.csite.2026.107779
Dongyu Jia, Liwei Yang, Xiaoqing Gao, Shuyuan Ren
{"title":"Rooftop Photovoltaics in Western China: A Study on Temperature and Urban Heat Island Dynamics in a Typical Valley City","authors":"Dongyu Jia, Liwei Yang, Xiaoqing Gao, Shuyuan Ren","doi":"10.1016/j.csite.2026.107779","DOIUrl":"https://doi.org/10.1016/j.csite.2026.107779","url":null,"abstract":"","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"215 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146110761","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-02DOI: 10.1016/j.csite.2026.107784
Yang Liu, Meng Wei, Haitao Zhang, Yuwei Liu, Jiandong Liao
In high-altitude regions, low atmospheric pressure and air density markedly reduce ventilation efficiency during tunnel construction, causing CO accumulation and severe safety risks. Using the Gongga Tunnel, a national key project, as a case study, this study combines numerical simulation and field experiments to clarify the drift-type ventilation flow and CO migration in the main-pilot tunnel system under high-altitude conditions. The effects of ventilation parameters on system performance were analyzed, the optimal ventilation scheme was proposed, and its effectiveness was validated on site. The results indicate that vortices formed near the working face due to airflow conflict lead to CO concentration peaks 50-125 m from the face. CO migrates toward the tunnel portal as gas masses, expanding in volume and decreasing in peak concentration. Due to cross-sectional shape differences, diffusion in the main-pilot tunnels differs, but both show central CO peaks and lower edge concentrations, matching field tests. Comparative analysis shows that parameter influence on ventilation efficiency follows: duct-working face distance > duct outlet velocity > duct layout position. Optimal performance occurs when duct height is 7.1 m, outlet distance 50 m, velocity 20 m/s, reducing average CO peak concentration by about 22% after 360 s of ventilation.
{"title":"Study on CO Concentration Distribution and Ventilation Scheme Optimization in Ultra-Long Drift-Type High-Altitude Tunnel Construction","authors":"Yang Liu, Meng Wei, Haitao Zhang, Yuwei Liu, Jiandong Liao","doi":"10.1016/j.csite.2026.107784","DOIUrl":"https://doi.org/10.1016/j.csite.2026.107784","url":null,"abstract":"In high-altitude regions, low atmospheric pressure and air density markedly reduce ventilation efficiency during tunnel construction, causing CO accumulation and severe safety risks. Using the Gongga Tunnel, a national key project, as a case study, this study combines numerical simulation and field experiments to clarify the drift-type ventilation flow and CO migration in the main-pilot tunnel system under high-altitude conditions. The effects of ventilation parameters on system performance were analyzed, the optimal ventilation scheme was proposed, and its effectiveness was validated on site. The results indicate that vortices formed near the working face due to airflow conflict lead to CO concentration peaks 50-125 m from the face. CO migrates toward the tunnel portal as gas masses, expanding in volume and decreasing in peak concentration. Due to cross-sectional shape differences, diffusion in the main-pilot tunnels differs, but both show central CO peaks and lower edge concentrations, matching field tests. Comparative analysis shows that parameter influence on ventilation efficiency follows: duct-working face distance > duct outlet velocity > duct layout position. Optimal performance occurs when duct height is 7.1 m, outlet distance 50 m, velocity 20 m/s, reducing average CO peak concentration by about 22% after 360 s of ventilation.","PeriodicalId":9658,"journal":{"name":"Case Studies in Thermal Engineering","volume":"89 1","pages":""},"PeriodicalIF":6.8,"publicationDate":"2026-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146098222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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