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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 airmethane was investigated.Air dilution and auxiliary methane injection are effective to avoid the catalyst overheating and reactionAir dilution exhibits the effects of two contradictory aspects on the operation of CFRR, i.e., coolingtemperature for flow reversal can decrease the bed temperature and benefit stable operation under rich methane

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

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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: been used to calculate the ventilation airfield of restricted wall-attached jet and average air ageof heading face,  and elicit ventilation flow field and distributing of average air age of heading 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,  and to air quality are air age and pollutant concentration.

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

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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 conditioningwhere improvement of indoor climate in exposed coastal areas is needed), China (indoor climate in non-air

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

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ALKALINE PRETREATMENT AND AIR MIXING FOR IMPROVEMENT OF METHANE PRODUCTION FROM ANAEROBIC CO-DIGESTION

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 3,   Pages 424-436 doi: 10.15302/J-FASE-2023506

Abstract:

● Integration of alkaline pretreatment and air mixing for co-digestion

Keywords： sodium hydroxide     air injection     cumulative methane yield     kinetic modeling analysis     digestate    

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Pre-chamber turbulent jet ignition of methane/air mixtures with multiple orifices in a large bore constantvolume chamber: effect of air-fuel equivalence ratio and pre-mixed pressure

Xiang LI, Wenzheng ZHANG, Zhong HUANG, Dehao JU, Li HUANG, Mingzhi FENG, Xingcai LU, Zhen HUANG

Frontiers in Energy 2019, Volume 13, Issue 3,   Pages 483-493 doi: 10.1007/s11708-019-0631-1

Abstract: Liquefied natural gas (LNG), mainly composed of methane, is in progress to substitute diesel fuel inTo investigate the effect of air-fuel equivalence ratio and pre-mixed pressure on pre-chamber TJI ofmethane/air mixtures with multiple orifices in a large bore volume, experimental tests and computationalDifferent initial pressures and air-fuel equivalence ratios were considered to analyze the characteristics

Keywords： marine engine     natural gas     methane     turbulent jet ignition (TJI)     pre-chamber    

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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 attachmentThe contaminant removal efficiency of complete mixing ventilation cannot exceed 1.0.Compared with the ceiling air supply mode or upper sidewall air supply mode, adaptive wall-based attachment

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

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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.distribution would be acquired, the contamination in kitchen would be exhausted effectively and the indoor air

Keywords： ventilation methods     kitchen in residence     CFD     air distribution    

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A modified zone model for estimating equivalent room thermal capacity

Hua CHEN, Xiaolin WANG

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 351-357 doi: 10.1007/s11708-013-0254-x

Abstract: The zone model has been widely applied in control analysis of heating, ventilation and air conditioning

Keywords： room model     thermal network analysis     transfer function     heating     ventilation and air conditioning (HVAC)    

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Indoor carbonyl compounds in an academic building in Beijing, China: concentrations and influencing factors

Chuanjia JIANG, Pengyi ZHANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 184-194 doi: 10.1007/s11783-011-0309-3

Abstract: Carbonyl compounds in indoor air are of great concern for their adverse health effects.Principal component analysis identified a combined effect of common indoor carbonyl sources and ventilationroom, and carbonyl concentrations tended to be lower in the daytime than at night, due to enhanced ventilation

Keywords： carbonyl compounds     indoor air     ventilation     human occupancy     source emission rate (SER)     principal component    

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Dissolved methane in anaerobic effluent: Emission or recovery?

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 4, doi: 10.1007/s11783-022-1537-4

Abstract: However, dissolved methane in anaerobic effluent appears to be a barrier towards the energy and carbonAlthough several dissolved methane recovery methods have been developed, their engineering feasibilityIn this perspective, we thus intend to offer additional insights into the cost-benefit of dissolved methane

Keywords： Anaerobic treatment     Municipal wastewater     Dissolved methane     Methane recovery     Carbon emission    

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

Frontiers of Structural and Civil Engineering   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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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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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: could guarantee air cleanliness.Biological particles in the operating room (OR) air environment can cause surgical site infections (SSIs(VLAF), horizontal laminar airflow ventilation (HLAF), differential vertical airflow ventilation (DVAFsystems for ensuring air cleanliness in the operating area.This study also indicated that air cleanliness in the operating area depended not only on the airflow

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

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USING NUTRITIONAL STRATEGIES TO MITIGATE RUMINAL METHANE EMISSIONS FROM RUMINANTS

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 3,   Pages 390-402 doi: 10.15302/J-FASE-2023504

Abstract:

● Microbial fermentation in the rumen is a main source of methane

Keywords： nutritional strategy     mitigation     microbe     methane     ruminant    

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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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Title Author Date Type Operation

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

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

Wang Haiqiao,Tian Feng,Huang Junxin,Chen Tao

Journal Article

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

Mark BOMBERG

Journal Article

ALKALINE PRETREATMENT AND AIR MIXING FOR IMPROVEMENT OF METHANE PRODUCTION FROM ANAEROBIC CO-DIGESTION

Journal Article

Pre-chamber turbulent jet ignition of methane/air mixtures with multiple orifices in a large bore constantvolume chamber: effect of air-fuel equivalence ratio and pre-mixed pressure

Xiang LI, Wenzheng ZHANG, Zhong HUANG, Dehao JU, Li HUANG, Mingzhi FENG, Xingcai LU, Zhen HUANG

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

Numerical Analysis of the Ventilation of a Kitchen in Residence

Zou Shenghua,Li Ping,Weng Peifen,Luo Yixin

Journal Article

A modified zone model for estimating equivalent room thermal capacity

Hua CHEN, Xiaolin WANG

Journal Article

Indoor carbonyl compounds in an academic building in Beijing, China: concentrations and influencing factors

Chuanjia JIANG, Pengyi ZHANG

Journal Article

Dissolved methane in anaerobic effluent: Emission or recovery?

Journal Article

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

Journal Article

Research on non-mechanical ventilation effect in Zhongnanshan road tunne

Zheng Xuan,Guo Jiaqi

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

USING NUTRITIONAL STRATEGIES TO MITIGATE RUMINAL METHANE EMISSIONS FROM RUMINANTS

Journal Article

Optimization transformation of complicated ventilation system in integration of mine

Zhang Futao

Journal Article