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Study on Air Age and Evaluation of Ventilation Validity of Heading Face

Wang Haiqiao,Tian Feng,Huang Junxin,Chen Tao

Strategic Study of CAE 2007, Volume 9, Issue 11,   Pages 43-47

Abstract: style="text-align: justify;">Heading face is a special underground workspace,  generally forced ventilationairfield of restricted wall-attached jet and average air age of heading face,  and elicit ventilation Based on them,  relations between the air age and ventilation flow field,  ventilationvalidity are analyzed,  and the mathematical model of air exchange efficiency and ventilation efficiency The conclusion of this research provides a kind of new theory basis for appraising the ventilation

Keywords： heading face     average air age     ventilation validity     air exchange efficiency     ventilation efficiency    

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Full-scale site evaluation of ventilation expressway embankments underlain by warm permafrost along the

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 7,   Pages 1047-1059 doi: 10.1007/s11709-023-0034-6

Abstract: Ventilation embankments, including those with forced ventilation, natural ventilation, and combinationTo evaluate the actual thermal performance of ventilation embankment in the Qinghai−Tibet Plateau, fourtypes of ventilation embankments were selected as objects, and their long-term thermal characteristics

Keywords： warm permafrost     expressway     ventilation embankments     temperature field    

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Prevention of surgical site infection under different ventilation systems in operating room environment

Zhijian Liu, Haiyang Liu, Hang Yin, Rui Rong, Guoqing Cao, Qihong Deng

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-020-1327-9

Abstract: Abstract • The effectiveness of four different ventilation systems was compared in depth. • AirflowVarious ventilation systems have been employed in ORs to ensure an ultraclean environment.In this study, the performance of four different ventilation systems (vertical laminar airflow ventilation(VLAF), horizontal laminar airflow ventilation (HLAF), differential vertical airflow ventilation (DVAFIt was found that the TAF system was the most effective ventilation system among the four ventilation

Keywords： Operating room (OR)     Bacteria-carrying particles (BCPs)     Surgical site infections (SSIs)     Ventilation    

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Research on non-mechanical ventilation effect in Zhongnanshan road tunne

Zheng Xuan,Guo Jiaqi

Strategic Study of CAE 2010, Volume 12, Issue 3,   Pages 39-44

Abstract: text-align: justify;">Zhongnanshan extra-long road tunnel in Qingling is large-scale and has a complex ventilationIn order to guarantee the ventilation scheme properly and save the ventilation expenditure, the evaluationof non-mechanical ventilation effect is of importance.The research team monitored the natural wind initially, traffic flux and the wind induced by natural ventilationThe calculating value of the wind speed induced by natural ventilation pressure and traffic wind force

Keywords： tunnel ventilation     field monitoring     non-mechanical ventilation     natural wind     traffic piston wind    

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Optimization transformation of complicated ventilation system in integration of mine

Zhang Futao

Strategic Study of CAE 2011, Volume 13, Issue 11,   Pages 68-71

Abstract: justify;">As a resource integration mine, there were many problems in Tangshangou Mine such as complex ventilationBy determining the ventilation resistance and fan performance test and reasonable evaluation of mineventilation system, the problems of original mine ventilation system were found out and analyzed, andan optimizing and transforming scheme for ventilation system was proposed.of fighting against natural calamities of mine ventilation network were improved.

Keywords： integration of mine     complicated ventilation system     optimization transformation    

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Successful management of seven cases of critical COVID-19 with early noninvasive–invasive sequential ventilation

Mian Peng, Xueyan Liu, Jinxiu Li, Di Ren, Yongfeng Liu, Xi Meng, Yansi Lyu, Ronglin Chen, Baojun Yu, Weixiong Zhong

Frontiers of Medicine 2020, Volume 14, Issue 5,   Pages 674-680 doi: 10.1007/s11684-020-0796-3

Abstract: management of seven patients with critical coronavirus disease 2019 (COVID-19) requiring mechanical ventilationwere admitted to the intensive care unit, where they received early noninvasive–invasive sequential ventilationoutcomes for patients with critical COVID-19 can be achieved with early noninvasive–invasive sequential ventilation

Keywords： COVID-19     noninvasive–invasive sequential ventilation     bundle pharmacotherapy    

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Biodegradation of triclosan and triclocarban in sewage sludge during composting under three ventilation

Bao Yu, Guodi Zheng, Xuedong Wang, Min Wang, Tongbin Chen

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 3, doi: 10.1007/s11783-019-1125-4

Abstract:

Ventilation significantly accelerated the biodegradation

Keywords： Sewage sludge     Compost     Triclosan     Triclocarban     Ventilation     Risk assessment    

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A concept of capillary active, dynamic insulation integrated with heating, cooling and ventilation, air

Mark BOMBERG

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 4,   Pages 431-437 doi: 10.1007/s11709-010-0071-9

Abstract: This happens when such insulation is integrated with heating, cooling and ventilation, air conditioning

Keywords： capillary active insulation     integrated heating     cooling and ventilation     air conditioning (HVAC) and building    

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Impacts of opening baffle of city road tunnels on natural ventilation performance

Weixiao YANG, Jincheng XING, Jianxing LI, Jihong LING, Haixian HAO, Zhiqiang YAN

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 1,   Pages 55-61 doi: 10.1007/s11709-013-0194-x

Abstract: Based on the opening baffle mode for natural ventilation of city road tunnels, this paper studies theimpacts of opening baffle on natural ventilation performance by verifying numerical simulation throughanalyzing the impacts of installation angle, dimension, location, and quantity of opening baffle on ventilationpaper reached the conclusions as follows: 1) When installation angle is larger than 45° and tunnel ventilation

Keywords： city road tunnel     numerical simulation     baffle     top opening     natural ventilation    

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Discussion on construction ventilation program of Bohai Strait tunnel

Wu Yuanjin,Zou Chong

Strategic Study of CAE 2013, Volume 15, Issue 12,   Pages 90-94

Abstract: The construction ventilation of Bohai Strait tunnel is studied in terms of ventilation mode selection, ventilation calculation and facility selection, on the basis of the existing devised program.In the end, the gallery-type ventilation method is proposed to solve the ventilation problem of the mentionedThe paper can provide ventilation technical support to the study on Bohai Strait tunnel.

Keywords： Bohai Strait tunnel     construction ventilation     gallery-type ventilation     program design    

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Adaptive Wall-Based Attachment Ventilation: A Comparative Study on Its Effectiveness in Airborne Infection Article

Ying Zhang, Ou Han, Angui Li, Li´an Hou, Thomas Olofsson, Linhua Zhang, Wenjun Lei,

Engineering 2022, Volume 8, Issue 1,   Pages 130-137 doi: 10.1016/j.eng.2020.10.020

Abstract: This paper proposes the application of adaptive wall-based attachment ventilation and evaluates thisAdaptive wall-based attachment ventilation provides a direct supply of fresh air to the occupied zoneIn comparison with a ceiling air supply or upper sidewall air supply, adaptive wall-based attachment ventilationThe contaminant removal efficiency of complete mixing ventilation cannot exceed 1.0.For adaptive wall-based attachment ventilation, the contaminant removal efficiency is an exponential

Keywords： Ventilation efficiency     Air change rate     COVID-19     Attachment ventilation     Air distribution     Isolation    

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A logic-based controller for the mitigation of ventilation air methane in a catalytic flow reversal reactor

Zhikai LI, Zhangfeng QIN, Yagang ZHANG, Zhiwei WU, Hui WANG, Shuna LI, Mei DONG, Weibin FAN, Jianguo WANG

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 3,   Pages 347-356 doi: 10.1007/s11705-013-1347-0

Abstract: The control system of a catalytic flow reversal reactor (CFRR) for the mitigation of ventilation air

Keywords： ventilation air methane     reverse flow reactor     lean methane combustion     logic-based controller     mathematical    

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Experimental study on the water mist under longitudinal ventilation using LDV/APV system

Liu Jianghong,Zhu Wei,Liao Guangxuan

Strategic Study of CAE 2012, Volume 14, Issue 11,   Pages 75-81

Abstract: Phase Doppler Velocimetry (APV) system was used to study the water mist flow field under longitudinal ventilation

Keywords： water mist     longitudinal ventilation     LDV/APV     mist characteristic    

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Numerical and Experimental Study on Ventilation Panel Models in a Subway Passenger Compartment Article

Yu Tao, Mingzhi Yang, Bosen Qian, Fan Wu, Tiantian Wang

Engineering 2019, Volume 5, Issue 2,   Pages 329-336 doi: 10.1016/j.eng.2018.12.007

Abstract:

The internal flow field study of car compartments is an important step in railroad vehicle design and optimization. The flow field profile has a significant impact on the temperature distribution and passenger comfort level. Experimental studies on flow field can yield accurate results but carry a high time and computational cost. In contrast, the numerical simulation method can yield an internal flow field profile in less time than an experimental study. This study aims to improve the computational efficiency of numerical simulation by adapting two simplified models—the porous media model and the porous jump face model—to study the internal flow field of a railroad car compartment. The results provided by both simplified models are compared with the original numerical simulation model and with experimental data. Based on the results, the porous media model has a better agreement with the original model and with the experimental results. The flow field parameters (temperature and velocity) of the porous media model have relatively small numerical errors, with a maximum numerical error of 4.7%. The difference between the numerical results of the original model and those of the porous media model is less than 1%. By replacing the original numerical simulation model with the porous media model, the flow field of subway car compartments can be calculated with a reduction of about 25% in computing resources, while maintaining good accuracy.

Keywords： Numerical simulation     Experiment     Ventilation panel model     Subway    

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Numerical Analysis of the Ventilation of a Kitchen in Residence

Zou Shenghua,Li Ping,Weng Peifen,Luo Yixin

Strategic Study of CAE 2004, Volume 6, Issue 12,   Pages 69-72

Abstract:

In this paper, the ventilation methods of kitchen in residence are classified into three kinds (&ldquoMechanical ventilation must be adopted in the kitchen in residence.

Keywords： ventilation methods     kitchen in residence     CFD     air distribution    

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Title Author Date Type Operation

Study on Air Age and Evaluation of Ventilation Validity of Heading Face

Wang Haiqiao,Tian Feng,Huang Junxin,Chen Tao

Journal Article

Full-scale site evaluation of ventilation expressway embankments underlain by warm permafrost along the

Journal Article

Prevention of surgical site infection under different ventilation systems in operating room environment

Zhijian Liu, Haiyang Liu, Hang Yin, Rui Rong, Guoqing Cao, Qihong Deng

Journal Article

Research on non-mechanical ventilation effect in Zhongnanshan road tunne

Zheng Xuan,Guo Jiaqi

Journal Article

Optimization transformation of complicated ventilation system in integration of mine

Zhang Futao

Journal Article

Successful management of seven cases of critical COVID-19 with early noninvasive–invasive sequential ventilation

Mian Peng, Xueyan Liu, Jinxiu Li, Di Ren, Yongfeng Liu, Xi Meng, Yansi Lyu, Ronglin Chen, Baojun Yu, Weixiong Zhong

Journal Article

Biodegradation of triclosan and triclocarban in sewage sludge during composting under three ventilation

Bao Yu, Guodi Zheng, Xuedong Wang, Min Wang, Tongbin Chen

Journal Article

A concept of capillary active, dynamic insulation integrated with heating, cooling and ventilation, air

Mark BOMBERG

Journal Article

Impacts of opening baffle of city road tunnels on natural ventilation performance

Weixiao YANG, Jincheng XING, Jianxing LI, Jihong LING, Haixian HAO, Zhiqiang YAN

Journal Article

Discussion on construction ventilation program of Bohai Strait tunnel

Wu Yuanjin,Zou Chong

Journal Article

Adaptive Wall-Based Attachment Ventilation: A Comparative Study on Its Effectiveness in Airborne Infection

Ying Zhang, Ou Han, Angui Li, Li´an Hou, Thomas Olofsson, Linhua Zhang, Wenjun Lei,

Journal Article

A logic-based controller for the mitigation of ventilation air methane in a catalytic flow reversal reactor

Zhikai LI, Zhangfeng QIN, Yagang ZHANG, Zhiwei WU, Hui WANG, Shuna LI, Mei DONG, Weibin FAN, Jianguo WANG

Journal Article

Experimental study on the water mist under longitudinal ventilation using LDV/APV system

Liu Jianghong,Zhu Wei,Liao Guangxuan

Journal Article

Numerical and Experimental Study on Ventilation Panel Models in a Subway Passenger Compartment

Yu Tao, Mingzhi Yang, Bosen Qian, Fan Wu, Tiantian Wang

Journal Article

Numerical Analysis of the Ventilation of a Kitchen in Residence

Zou Shenghua,Li Ping,Weng Peifen,Luo Yixin

Journal Article