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Design and application of a novel coal-fired drum boiler using saline water in heavy oil recovery

Junping GU, Yuxin WU, Liping WU, Man ZHANG, Hairui YANG, Junfu LYU

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 715-725 doi: 10.1007/s11708-020-0690-3

Abstract: In this paper, the design and operation of a novel coal-fired circulating fluidized bed (CFB) drum boilerThe natural circulation water dynamics with a drum was adopted instead of the traditional once-throughsteam generator (OTSG) design, so that superheated steam can be generated for the better performanceBased on the field test, the recommended water standard for the coal-fired CFB drum boilers was determinedWith the present technology, the treated recovery wastewater can be reused in steam-injection boilers

Keywords： drum steam injection boiler     natural circulation     recovery wastewater     staged evaporation     circulating fluidized    

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Study of steam injection technology for low permeablehigh viscous light oil reservoir

Wang Lizhi,Wang Yunlong

Strategic Study of CAE 2012, Volume 14, Issue 4,   Pages 88-94

Abstract: viscous light oil reservoir, and then further improve recovery of block with more intensive well network, steam-floodingcontent, and thin effective thickness, in-house physical modeling was undertaken in feasibility study; steaminjection parameters and injection methods were optimized with numerical simulation; ground anti-swellingThe studies indicated suitable reservoir geological conditions for steam-flooding extraction of low permeable

Keywords： low permeability     high viscous light oil     steam-flooding extraction    

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Development and technical progress in large-scale circulating fluidized bed boiler in China

Zhong HUANG, Lei DENG, Defu CHE

Frontiers in Energy 2020, Volume 14, Issue 4,   Pages 699-714 doi: 10.1007/s11708-020-0666-3

Abstract: Circulating fluidized bed (CFB) boilers has realized the clean and efficient utilization of inferior coal like gangue and coal slime, high sulfur coal, anthracite, petroleum coke, oil shale and other resources. As a country with the largest amount of CFB boilers and the largest installed capacity in the world, China has 440 100–600 MW CFB boilers with a total capacity of 82.29 GW , including 227 units of 135 MW , 95 units of 300 MW , and 24 supercritical units. The statistics of typical 100–300 MW CFB boilers showed that the average number of unplanned shut-down was only 0.37 times per year, among which the 135 MW was 0.26 times per year and 300 MW was 0.46 times per year. The auxiliary power ratio of some 300 MW CFB boilers based on flow-pattern reconstruction can be reduced to about 4%, which is closed to the same level of pulverized coal (PC) boilers. This paper summarizes the development process and application status of China’s large-scale CFB boilers, analyzes the characteristics and technical performance of the iconic units, and introduces solutions to the problems such as water wall wear and bottom ash cooling.

Keywords： CFB boiler     installed capacity     reliability     economics     ultra-low emission     China    

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Industrial-scale investigations on effects of tertiary-air declination angle on combustion and steamtemperature characteristics in a 350-MW supercritical down-fired boiler

Xiaoguang LI, Lingyan ZENG, Hongye LIU, Yao LI, Yifu LI, Yunlong ZHAO, Bo JIAO, Minhang SONG, Shaofeng ZHANG, Zhichao CHEN, Zhengqi LI

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 132-142 doi: 10.1007/s11708-020-0803-z

Abstract: were conducted to study the effects of tertiary air declination angle (TDA) on the coal combustion and steamtemperature characteristics in the first 350-MW supercritical down-fired boiler in China with the multiple-injectionThe main and reheat steam temperatures were the highest (557.2°C and 559.4°C at a load of 210 MW, 558.4changing the TDA from 15° to 25°, the flame kernel was found to move downward and the main and reheat steam

Keywords： supercritical down-fired boiler     industrial-scale experiment     tertiary air declination angle     coal combustion     steam temperature    

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Fault simulation of boiler heating surface ash deposition in a power plant system

Weiwei ZHANG, Huisheng ZHANG, Ming SU

Frontiers in Energy 2011, Volume 5, Issue 4,   Pages 435-443 doi: 10.1007/s11708-011-0162-x

Abstract: plant under the conditions of the furnace slagging and ash deposition of the heating surfaces in the boiler

Keywords： boiler     slagging     ash deposition     fault simulation    

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Heating energy performance and part load ratio characteristics of boiler staging in an office building

Da Young LEE, Byeong Mo SEO, Yeo Beom YOON, Sung Hyup HONG, Jong Min CHOI, Kwang Ho LEE

Frontiers in Energy 2019, Volume 13, Issue 2,   Pages 339-353 doi: 10.1007/s11708-018-0596-5

Abstract: significant portions of the total building energy in South Korea and thus a variety of research on the boilerIn this study, the part load ratio and the operating characteristics of gas boiler have been analyzedIn addition, the gas consumption among different boiler staging schemes has been comparatively analyzedThis suggests that boiler operation at the part load is an important factor in commercial buildings.In addition, utilizing sequential boiler staging scheme can save a gas usage of about 7%.

Keywords： EnergyPlus     boiler     part load ratio     gas consumption     office building     boiler staging    

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Thermodynamic models and energy distribution of single-phase heated surface in a boiler under unsteady

Xiyan GUO, Yongping YANG

Frontiers in Energy 2011, Volume 5, Issue 1,   Pages 69-74 doi: 10.1007/s11708-010-0117-7

Abstract: scientific energy analysis of the unit, thermodynamic analysis of a single-phase heated surface in a boilerTaking the low-temperature superheater of a 610 t/h-boiler as an example, the distribution of energy,

Keywords： thermodynamic model     energy distribution     boiler     unsteady conditions    

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Heat flux distribution on circulating fluidized bed boiler water wall

LU Junfu, YUE Guangxi, YANG Hairui, ZHANG Jiansheng, YU Long, ZHANG Man, YANG Zhongming

Frontiers in Energy 2008, Volume 2, Issue 2,   Pages 134-139 doi: 10.1007/s11708-008-0027-0

Abstract: The future of circulating fluidized bed (CFB) combustion technology is in raising the steam parametersThe results are useful in supercritical pressure CFB boiler design.

Keywords： horizontal     different furnace     temperature     FEA     measurement    

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Large eddy simulation of a 660 MW utility boiler under variable load conditions

Haoshu SHEN, Yuxin WU, Minmin ZHOU, Hai ZHANG, Guangxi YUE, Junfu LYU

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 124-131 doi: 10.1007/s11708-020-0659-2

Abstract: The boiler performance of variable loads should be evaluated in terms of flow, heat transfer, and combustionIn this paper, LES was applied to simulate a 660 MW ultra-supercritical boiler under BMCR (boiler maximumThe simulation results show that the operation load has significant effects on the boiler performance

Keywords： large eddy simulation     ultra-supercritical boiler     operation load    

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Study on the NOx release rule along the boiler during pulverized coal combustion

JIN Jing, ZHANG Zhongxiao, LI Ruiyang

Frontiers in Energy 2007, Volume 1, Issue 1,   Pages 91-95 doi: 10.1007/s11708-007-0009-7

Abstract: Numerical simulation and experimental study on NO release along the boiler during pulverized coal combustion
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Modeling analysis on solar steam generator employed in multi-effect distillation (MED) system

Zhaorui ZHAO, Bao YANG, Ziwen XING

Frontiers in Energy 2019, Volume 13, Issue 1,   Pages 193-203 doi: 10.1007/s11708-019-0608-0

Abstract: Specifically, the effects of operating parameters, such as the motive steam temperature, seawater flowproduced have been investigated in the MED desalination system combined with the bilayer wood solar steamIt is found that, under a given operating condition, there exists an optimum steam generation temperatureThis parametric simulation study will help the design of efficient bilayer wood solar steam generator

Keywords： solar energy     steam generating     multi-effect desalination    

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Intrinsic kinetics and external diffusion of catalytic steam gasification of fine coal char particles

Xuantao Wu, Jie Wang

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 2,   Pages 415-426 doi: 10.1007/s11705-018-1725-8

Abstract: Catalytic steam gasification of fine coal char particles was carried out using a self-made laboratory

Keywords： coal char     catalytic steam gasification     pressure     kinetics     diffusion    

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Application of digital holography to circle flow bed boiler measurement

PU Shiliang, WANG Qinghui, CEN Kefa, Denis Lebrun, REN Kuanfang

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 218-222 doi: 10.1007/s11708-007-0029-3

Abstract: The spatial distribution of particles in the boiler is very important in the study on the circle flowbed boiler (CFB).holography technique was applied to obtain the spatial and diameter distribution of the particles inside the boiler

Keywords： HE-NE     function     convolution     two-phase     diffraction    

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Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1,   Pages 74-84 doi: 10.1007/s11465-018-0490-1

Abstract:

Compared with conventional injection molding, injection-compression molding can mold optical partsIn this study, a 3D simulation method was developed for injection-compression molding.in the cavity were investigated by using the proposed simulation method and compared with those of injectionpressures at different points along the flow path is complicated rather than monotonically decreased in injection

Keywords： injection-compression molding     simulation     injection molding     melt flow     cavity pressure    

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Performance evaluation of an improved biomass-fired cogeneration system simultaneously using extraction steam

Frontiers in Energy 2022, Volume 16, Issue 2,   Pages 321-335 doi: 10.1007/s11708-021-0741-4

Abstract: In place of the traditional single heat source (extraction steam), the extraction steam from the turbine

Keywords： biomass-fired cogeneration     district heat production system     absorption heat pump     extraction steam    

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Title Author Date Type Operation

Design and application of a novel coal-fired drum boiler using saline water in heavy oil recovery

Junping GU, Yuxin WU, Liping WU, Man ZHANG, Hairui YANG, Junfu LYU

Journal Article

Study of steam injection technology for low permeablehigh viscous light oil reservoir

Wang Lizhi,Wang Yunlong

Journal Article

Development and technical progress in large-scale circulating fluidized bed boiler in China

Zhong HUANG, Lei DENG, Defu CHE

Journal Article

Industrial-scale investigations on effects of tertiary-air declination angle on combustion and steamtemperature characteristics in a 350-MW supercritical down-fired boiler

Xiaoguang LI, Lingyan ZENG, Hongye LIU, Yao LI, Yifu LI, Yunlong ZHAO, Bo JIAO, Minhang SONG, Shaofeng ZHANG, Zhichao CHEN, Zhengqi LI

Journal Article

Fault simulation of boiler heating surface ash deposition in a power plant system

Weiwei ZHANG, Huisheng ZHANG, Ming SU

Journal Article

Heating energy performance and part load ratio characteristics of boiler staging in an office building

Da Young LEE, Byeong Mo SEO, Yeo Beom YOON, Sung Hyup HONG, Jong Min CHOI, Kwang Ho LEE

Journal Article

Thermodynamic models and energy distribution of single-phase heated surface in a boiler under unsteady

Xiyan GUO, Yongping YANG

Journal Article

Heat flux distribution on circulating fluidized bed boiler water wall

LU Junfu, YUE Guangxi, YANG Hairui, ZHANG Jiansheng, YU Long, ZHANG Man, YANG Zhongming

Journal Article

Large eddy simulation of a 660 MW utility boiler under variable load conditions

Haoshu SHEN, Yuxin WU, Minmin ZHOU, Hai ZHANG, Guangxi YUE, Junfu LYU

Journal Article

Study on the NOx release rule along the boiler during pulverized coal combustion

JIN Jing, ZHANG Zhongxiao, LI Ruiyang

Journal Article

Modeling analysis on solar steam generator employed in multi-effect distillation (MED) system

Zhaorui ZHAO, Bao YANG, Ziwen XING

Journal Article

Intrinsic kinetics and external diffusion of catalytic steam gasification of fine coal char particles

Xuantao Wu, Jie Wang

Journal Article

Application of digital holography to circle flow bed boiler measurement

PU Shiliang, WANG Qinghui, CEN Kefa, Denis Lebrun, REN Kuanfang

Journal Article

Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Journal Article

Performance evaluation of an improved biomass-fired cogeneration system simultaneously using extraction steam

Journal Article