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< Page ,Total 12 >
Experimental study of a local ventilation strategy to protect semi-exposed relics in a site museum EI SCIE Scopus
期刊论文 | 2018 , 159 , 558-571 | ENERGY AND BUILDINGS
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Abstract :

Indoor environmental controls are critical considerations when preserving artifacts in museums. Controlling the indoor environment of site museum buildings with large space layout typically consumes large amounts of energy. Most of the energy load needed to preserve relics is dissipated throughout the non-occupied space, because the environments that contain the relics occupy relatively little space compared to the entire exhibition hall. In this study, an energy efficient local ventilation system was proposed to independently control the environment of a funerary pit, which was preserved within a museum separate from the large exhibition hall. An experimental hall, which consists of a funerary pit and an experimental local ventilation system, was built to simulate a site museum building. Experiments were conducted to investigate the system's performance and to validate its ability to preserve historical terracotta figurines in their semi-exposed pits within the exhibition hall. The study evaluated the stability of the conservation environment and the system's energy usage by assessing the effects of the ventilation rate. The experimental results showed that the local ventilation system provides an energy-saving strategy supporting the environmental control of the funerary pit. The LV system significantly decreased temperature fluctuations in the funerary pit and temperature differences across semi-exposed relics. The system could be used to control the local preservation environment of the funerary pit separately from a large space exhibition hall. (C) 2017 Elsevier B.V. All rights reserved.

Keyword :

Site museum Relic preservation Local environmental control Energy saving Local ventilation system

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GB/T 7714 Luo, Xilian , Gu, Zhaolin , Tian, Wei et al. Experimental study of a local ventilation strategy to protect semi-exposed relics in a site museum [J]. | ENERGY AND BUILDINGS , 2018 , 159 : 558-571 .
MLA Luo, Xilian et al. "Experimental study of a local ventilation strategy to protect semi-exposed relics in a site museum" . | ENERGY AND BUILDINGS 159 (2018) : 558-571 .
APA Luo, Xilian , Gu, Zhaolin , Tian, Wei , Xia, Yin , Ma, Tao . Experimental study of a local ventilation strategy to protect semi-exposed relics in a site museum . | ENERGY AND BUILDINGS , 2018 , 159 , 558-571 .
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Advances in Pore-Scale Simulation of Oil Reservoirs EI SCIE Scopus
期刊论文 | 2018 , 11 (5) | ENERGIES
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Abstract :

At the high water cut stage, the residual oil in a reservoir becomes complex and dispersed. Moreover, it is challenging to achieve good predictions of the movement of oil and water in a reservoir according to the macroscopic models based on the statistic parameters of this scenario. However, pore-scale simulation technology based on directly tracking the interaction among different phases can make an accurate prediction of the fluid distribution in the pore space, which is highly important in the improvement of the recovery rate. In this work, pore-scale simulation methods, including the pore network model, lattice Boltzmann method, Navier-Stokes equation-based interface tracking methods, and smoothed particle hydrodynamics, and relevant technologies are summarized. The principles, advantages, and disadvantages, as well as the degree of difficulty in the implementation are analyzed and compared. Problems in the current simulation technologies, micro sub-models, and applications in physicochemical percolation are also discussed. Finally, potential developments and prospects in this field are summarized.

Keyword :

lattice Boltzmann method smoothed particle hydrodynamics pore-scale simulation volume of fluid pore network model

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GB/T 7714 Su, Junwei , Wang, Le , Gu, Zhaolin et al. Advances in Pore-Scale Simulation of Oil Reservoirs [J]. | ENERGIES , 2018 , 11 (5) .
MLA Su, Junwei et al. "Advances in Pore-Scale Simulation of Oil Reservoirs" . | ENERGIES 11 . 5 (2018) .
APA Su, Junwei , Wang, Le , Gu, Zhaolin , Zhang, Yunwei , Chen, Chungang . Advances in Pore-Scale Simulation of Oil Reservoirs . | ENERGIES , 2018 , 11 (5) .
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Coupling Eulerian-Lagrangian method of air-particle two-phase flow with population balance equations to simulate the evolution of vehicle exhaust plume EI SCIE Scopus
期刊论文 | 2018 , 88 (3) , 117-140 | INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS
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Abstract :

In this paper, we present a new numerical scheme to describe the dynamic evolution of multiphase polydisperse systems in terms of time, space, and properties by coupling the Eulerian-Lagrangian method for air-particle two-phase flow and population balance equations to describe particle property evolution due to microbehaviors (eg, aggregation, breakage, and growth). This coupling scheme was used to comprehensively simulate the two-phase flow structure, particle size spectrum, particle number, and volume concentrations. These were characterized by a high-resolution particle tracking using the Lagrangian approach and the high precision of moments of the particle size spectrum by solving the population balance equation with the quadrature method of moments. The algorithm of the coupling scheme was incorporated into the open source computational fluid dynamics software OpenFOAM to simulate the dynamic evolution of vehicle exhaust plume. The impacts of vehicle velocity, exhaust temperature, and aggregation efficiency on the distribution of auto exhaust particles in space and changes in their properties were analyzed. The results indicate that the particle number concentration, volume concentration, and average diameter of particles in the vehicle exhaust plume could be strongly affected by the plume structure and flow properties.

Keyword :

vehicle exhaust plume population balance equations Eulerian-Lagrangian method quadrature method of moments particle size spectrum multiphase polydisperse systems

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GB/T 7714 He, Yuanping , Gu, Zhaolin , Su, Junwei et al. Coupling Eulerian-Lagrangian method of air-particle two-phase flow with population balance equations to simulate the evolution of vehicle exhaust plume [J]. | INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS , 2018 , 88 (3) : 117-140 .
MLA He, Yuanping et al. "Coupling Eulerian-Lagrangian method of air-particle two-phase flow with population balance equations to simulate the evolution of vehicle exhaust plume" . | INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS 88 . 3 (2018) : 117-140 .
APA He, Yuanping , Gu, Zhaolin , Su, Junwei , Chen, Chungang , Zhang, Mingxu , Zhang, Liyuan et al. Coupling Eulerian-Lagrangian method of air-particle two-phase flow with population balance equations to simulate the evolution of vehicle exhaust plume . | INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS , 2018 , 88 (3) , 117-140 .
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Performance comparison of capillary mat radiant and floor radiant heating systems assisted by an air source heat pump in a residential building SCIE Scopus
期刊论文 | 2017 , 26 (9) , 1292-1304 | INDOOR AND BUILT ENVIRONMENT | IF: 1.158
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Abstract :

The radiant heating system assisted by an air source heat pump has been widely applied in China for its effective energy conservation, high comfort performance and flexible utilization. Because the coefficient of performance of the system is strictly controlled by the supply water temperature heated by the air source heat pump, an efficient radiant terminal with low-temperature supply water is of significance to the coefficient of performance. In this research, the energy-saving feature of the capillary mat radiant heating system was first proved theoretically based on the influence of the heat transfer temperature difference on the coefficient of performance of the air source heat pump. In order to compare the performances of the capillary mat radiant and floor radiant heating systems, an experiment platform of two different radiant terminals assisted by an air source heat pump was established in a residential building in Xi'an, China. Experimental results showed that, to satisfy the indoor heating requirements, the supply and return water temperatures ought to be 35.0? and 30.9?, respectively, and for the capillary mat radiant heating system, 43.9? and 38.8?, respectively, for the floor radiant heating system. However, the electricity consumption of the capillary mat radiant heating system is 45% less than that of the floor radiant heating system. Thus, our study validated the energy-saving potential of the capillary mat radiant heating system assisted by an air source heat pump.

Keyword :

Energy saving Floor radiant heating Capillary mat radiant heating Coefficient of performance Air source heat pump

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GB/T 7714 Zhao, Min , Kang, Weibin , Luo, Xilian et al. Performance comparison of capillary mat radiant and floor radiant heating systems assisted by an air source heat pump in a residential building [J]. | INDOOR AND BUILT ENVIRONMENT , 2017 , 26 (9) : 1292-1304 .
MLA Zhao, Min et al. "Performance comparison of capillary mat radiant and floor radiant heating systems assisted by an air source heat pump in a residential building" . | INDOOR AND BUILT ENVIRONMENT 26 . 9 (2017) : 1292-1304 .
APA Zhao, Min , Kang, Weibin , Luo, Xilian , Yu, Chuck Wah , Meng, X. Z. , Gu, Zhaolin . Performance comparison of capillary mat radiant and floor radiant heating systems assisted by an air source heat pump in a residential building . | INDOOR AND BUILT ENVIRONMENT , 2017 , 26 (9) , 1292-1304 .
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Numerical Simulation and Experimental Test on the Solar-energy-collecting Shed in a New Whirlwind Energy System EI Scopus CSCD PKU
期刊论文 | 2017 , 38 (9) , 1980-1985 | Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics
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Abstract :

Dust devils in nature usually contain abundant wind energy, a new dust-devil-like whirlwind energy system has been proposed which could generate stable swirling wind. A circular solar-energy-collecting shed with pre-rotation vanes has been devised to generate the whirlwind flow by heating the air inflow into the shed. The effects of geometrical parameters(shed radius and air inflow incident angle) and temperature differences on the whirlwind characteristic velocities were evaluated by numerical simulation and experimental test. With the distribution and trend we could obtain the optimal incident angle. By simulating the cases with this incident angle, together with the similarity analysis, we could summarize the confines of the solar-energy-collecting shed size under different heating temperature differences, which could help to choose the optimal structural and operating parameters for the system. In addition, the confines obtained from the initial conditions on Mars also draw a future application prospect of the system working in space. © 2017, Science Press. All right reserved.

Keyword :

Characteristic velocities Energy systems Experimental test Future applications Heating temperatures Operating parameters Similarity analysis Temperature differences

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GB/T 7714 Zhang, Ming-Xu , Gu, Zhao-Lin , Luo, Xi-Lian et al. Numerical Simulation and Experimental Test on the Solar-energy-collecting Shed in a New Whirlwind Energy System [J]. | Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics , 2017 , 38 (9) : 1980-1985 .
MLA Zhang, Ming-Xu et al. "Numerical Simulation and Experimental Test on the Solar-energy-collecting Shed in a New Whirlwind Energy System" . | Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics 38 . 9 (2017) : 1980-1985 .
APA Zhang, Ming-Xu , Gu, Zhao-Lin , Luo, Xi-Lian , Su, Jun-Wei , Duan, Cui-E . Numerical Simulation and Experimental Test on the Solar-energy-collecting Shed in a New Whirlwind Energy System . | Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics , 2017 , 38 (9) , 1980-1985 .
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An energy efficient strategy for local environment control of relics preservation in archaeology museums with funerary pits EI CPCI-S Scopus
会议论文 | 2016 , 88 , 271-276 | Applied Energy Symposium and Summit - Low Carbon Cities and Urban Energy Systems (CUE)
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Abstract :

Indoor environmental control has been proved to be critical for long-term preservation for artifacts in archaeology museums. However, it is usually a very energy intensive process to sustain a steady condition continuously throughout the year for the whole exhibition hall. In this study, an energy efficient strategy that only controls the local environment for the preservation area is proposed. A laboratory room with a funerary pit was constructed to simulate a large open exhibition hall. Experimental investigations using the test pit, with radiant panels and air curtain system for control of the local environment for the funerary pit, validated this management strategy for the preservation of relics in archaeology museums. The results show that using both an air curtain and a radiant heating system provides a feasible and energy-saving strategy for controlling the preservation environment independently. (C) 2016 The Authors. Published by Elsevier Ltd.

Keyword :

archaeology museum relics preservation Air curtain system radiant capillary system

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GB/T 7714 Luo, Xilian , Li, Wenwu , Yu, Yuehui et al. An energy efficient strategy for local environment control of relics preservation in archaeology museums with funerary pits [C] . 2016 : 271-276 .
MLA Luo, Xilian et al. "An energy efficient strategy for local environment control of relics preservation in archaeology museums with funerary pits" . (2016) : 271-276 .
APA Luo, Xilian , Li, Wenwu , Yu, Yuehui , Jin, Liwen , Gu, Zhaolin . An energy efficient strategy for local environment control of relics preservation in archaeology museums with funerary pits . (2016) : 271-276 .
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Surface charges on aerosol particles - Accelerating particle growth rate and atmospheric pollution SCIE Scopus
期刊论文 | 2016 , 25 (3) , 437-440 | INDOOR AND BUILT ENVIRONMENT | IF: 1.181
WoS CC Cited Count: 4
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GB/T 7714 Zhang, Liyuan , Gu, Zhaolin , Yu, Chuck et al. Surface charges on aerosol particles - Accelerating particle growth rate and atmospheric pollution [J]. | INDOOR AND BUILT ENVIRONMENT , 2016 , 25 (3) : 437-440 .
MLA Zhang, Liyuan et al. "Surface charges on aerosol particles - Accelerating particle growth rate and atmospheric pollution" . | INDOOR AND BUILT ENVIRONMENT 25 . 3 (2016) : 437-440 .
APA Zhang, Liyuan , Gu, Zhaolin , Yu, Chuck , Zhang, Yunwei , Cheng, Yan . Surface charges on aerosol particles - Accelerating particle growth rate and atmospheric pollution . | INDOOR AND BUILT ENVIRONMENT , 2016 , 25 (3) , 437-440 .
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Dust Devil Steady-State Structure from a Fluid Dynamics Perspective EI SCIE Scopus
期刊论文 | 2016 , 203 (1-4) , 209-244 | SPACE SCIENCE REVIEWS | IF: 7.497
WoS CC Cited Count: 6
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Abstract :

Simple analytical models for the flow structure of dust devils in steady state, and a "thermophysical" scaling theory that explains how these flow structures are maintained are reviewed. Then, results from high-resolution numerical simulations are used to provide insights into the structure of dust-devil-like vortices and study the impact of surface roughness on them. The article concludes with an overview of the influence of lofted dust on the flow structure of dust devils and a discussion of open questions.

Keyword :

Atmosphere Vortices Dust devils Mars

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GB/T 7714 Kurgansky, Michael V. , Lorenz, Ralph D. , Renno, Nilton O. et al. Dust Devil Steady-State Structure from a Fluid Dynamics Perspective [J]. | SPACE SCIENCE REVIEWS , 2016 , 203 (1-4) : 209-244 .
MLA Kurgansky, Michael V. et al. "Dust Devil Steady-State Structure from a Fluid Dynamics Perspective" . | SPACE SCIENCE REVIEWS 203 . 1-4 (2016) : 209-244 .
APA Kurgansky, Michael V. , Lorenz, Ralph D. , Renno, Nilton O. , Takemi, Tetsuya , Gu, Zhaolin , Wei, Wei . Dust Devil Steady-State Structure from a Fluid Dynamics Perspective . | SPACE SCIENCE REVIEWS , 2016 , 203 (1-4) , 209-244 .
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Characterization and performance of poly-silicic-cation coagulant in treatment of recycled paper wastewater SCIE Scopus
期刊论文 | 2016 , 57 (14) , 6302-6309 | DESALINATION AND WATER TREATMENT | IF: 1.631
WoS CC Cited Count: 4
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Abstract :

Tertiary treatment of pulp and paper wastewater has become increasingly pressing since stricter legislations were issued by the central government and some provincial governments in China. Coagulation process after biological treatment has been regarded as a techno-economically feasible technology for the high quality effluent. In this paper, a study on preparation and characterization of poly-silicic-cation coagulants (PSiCs) with different Si/(Al+Fe) molar ratios is described. X-ray diffraction, infrared spectra, ultraviolet/visible absorption scanning, and microscopic imaging were used as measures for characterization. Coagulant performance was evaluated using it in papermaking wastewater treatment. The results showed that new complex compounds had formed in the PSiC polymers and the optimal Si/(Al+Fe) molar ratio for the coagulant polymerization was about 0.9, at which the polymerization degree was highest. The content of ionic polymerized bonds and branch-like PSiC units would decrease when the molar ratio was lower or higher than 0.9. The highest efficiency appeared when PSiC0.9 was used in the wastewater treatment, rather than PSiC0.6 and PSiC1.5. The results also showed that concentrations of turbidity, COD, color, and residual aluminum in the PSiC treated effluent were lower than that from coagulation tests using traditional coagulants.

Keyword :

Poly-silicic-cation coagulant Coagulation Characterization of morphology and structure Recycled paper wastewater

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GB/T 7714 He, Chao , Li, Ran , Liu, Zongkuan et al. Characterization and performance of poly-silicic-cation coagulant in treatment of recycled paper wastewater [J]. | DESALINATION AND WATER TREATMENT , 2016 , 57 (14) : 6302-6309 .
MLA He, Chao et al. "Characterization and performance of poly-silicic-cation coagulant in treatment of recycled paper wastewater" . | DESALINATION AND WATER TREATMENT 57 . 14 (2016) : 6302-6309 .
APA He, Chao , Li, Ran , Liu, Zongkuan , Gu, Zhaolin . Characterization and performance of poly-silicic-cation coagulant in treatment of recycled paper wastewater . | DESALINATION AND WATER TREATMENT , 2016 , 57 (14) , 6302-6309 .
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Efficacy of an air curtain system for local pit environmental control for relic preservation in archaeology museums SCIE Scopus
期刊论文 | 2016 , 25 (1) , 29-40 | INDOOR AND BUILT ENVIRONMENT | IF: 1.181
WoS CC Cited Count: 9
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Abstract :

Indoor environmental control has been proven to be a critical consideration for preserving in situ unearthed relics in archaeology museum. An air curtain system has been proposed to separate the local environment of funerary pit from its large-space exhibition hall. The isolation efficiency of the air curtain is formulated by using stream function method in this study. The geometrical dimensions and jet flow parameters were investigated in this study through the theoretical formula, to determine their effects on the isolation efficiency and suitable operation mode, respectively. An experimental setup was constructed to investigate the performance and validate the feasibility of an air curtain system for preservation of historical terracotta figurines in their semi-exposed pits in the exhibition hall. The experimental results showed that the air curtain system could be orientated to isolate the relics or buried treasures unearthed in pits from the large open space of the exhibition hall. These results have significant implications for protecting the relics from deterioration in a control environment of a national museum and will contribute towards sustainable protocol for long-term preservation of unearthed relics in archaeology museums.

Keyword :

Archaeology museum Relic preservation Air curtain system Local environmental control

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GB/T 7714 Luo, Xilian , Gu, Zhaolin , Yu, Chuck et al. Efficacy of an air curtain system for local pit environmental control for relic preservation in archaeology museums [J]. | INDOOR AND BUILT ENVIRONMENT , 2016 , 25 (1) : 29-40 .
MLA Luo, Xilian et al. "Efficacy of an air curtain system for local pit environmental control for relic preservation in archaeology museums" . | INDOOR AND BUILT ENVIRONMENT 25 . 1 (2016) : 29-40 .
APA Luo, Xilian , Gu, Zhaolin , Yu, Chuck , Ma, Tao , Kase, Kiwamu . Efficacy of an air curtain system for local pit environmental control for relic preservation in archaeology museums . | INDOOR AND BUILT ENVIRONMENT , 2016 , 25 (1) , 29-40 .
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