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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 have been conducted. With the increase of temperature the NO emission increased and the peak value of NO release moved forward. But when the temperature increased to a certain degree, NO emission began to reduce. NO emission increased with the increase of nitrogen content of coal. The peak value of NO release moved backwards with the increase of coal rank. NO emission increased obviously with the increase of stoichiometric ratio. There existed a critical average diameter of the pulverized coal (). If "d, NO emission reduced with the decrease of pulverized coal size. If >, NO emission reduced with the increase of the pulverized coal size. The results showed that the simulation results are in agreement with the experimental results for concentration distribution of NO along the axis of the furnace.
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Selective catalytic reduction of NOx from exhaust of lean-burn engine over Ag-Al2O3/cordierite catalyst

LI Junhua, KANG Shoufang, FU Lixin, HAO Jiming

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 2,   Pages 143-146 doi: 10.1007/s11783-007-0025-1

Abstract: A highly effective Ag-AlO catalyst was prepared using the sol-gel method, and characterized by surface area using nitrogen adsorption, scanning electron microscopy (SEM), and transmission electron microscopy (TEM) techniques. The catalyst performance was tested on a real lean-burn gasoline engine. Only unburned hydrocarbons and carbon monoxide in the exhaust were directly used as reductant (without any external reductant), the maximum NO conversion could only reach 40% at 450?C. When an external reductant, ethanol was added, the average NO conversion was greater than 60%. At exhaust gas temperature range of 350 500?C, the maximum NO conversion reached about 90%. CO and HC could be efficiently oxidized with Pt-AO oxidation catalyst placed at the end of SCR converter. However, NO conversion drastically decreased because of the oxidation of some intermediates to NO again. The possible reaction mechanism was proposed as two typical processes, nitration, and reduction in HC-SCR over Ag-AlO.

Keywords： lean-burn gasoline     external reductant     nitrogen adsorption     conversion     catalyst performance    

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NOx removal by non-thermal plasma reduction: experimental and theoretical investigations

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 10,   Pages 1476-1484 doi: 10.1007/s11705-022-2165-z

Abstract: Green and efficient NOx removal at low temperature is still desired. NOx removal via non-thermal plasma (NTP) reduction is one of such technique. This work presents the experimental and theoretical study on the NOx removal via NTP reduction (NTPRD) in dielectric barrier discharge reactor (DBD). The effect of O2 molar fraction on NOx species in the outlet of DBD, and effects of NH3/NO molar ratio and discharge power of DBD on NOx removal efficiency are investigated. Results indicate that anaerobic condition and higher discharge power is beneficial to direct removal of NOx, and the NOx removal efficiency can be up to 98.5% under the optimal operating conditions. It is also found that adding NH3 is favorable for the reduction of NOx to N2 at lower discharge power. In addition, the NOx removal mechanism and energy consumption analysis for the NTPRD process are also studied. It is found that the reduced active species ( N∗, N−, N+, N2∗, NH2+, etc.) generated in the NTPRD process play important roles for the reduction of NOx to N2. Our work paves a novel pathway for NOx removal from anaerobic gas in industrial application.

Keywords： ${\rm{NO}}_x $ removal     NTP reduction     mechanism     energy consumption    

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Energy storage resources management: Planning, operation, and business model

Frontiers of Engineering Management   Pages 373-391 doi: 10.1007/s42524-022-0194-4

Abstract: One of the feasible solutions is deploying the energy storage system (ESS) to integrate with the energyservices and load transfer, while emerging business models include electric vehicle (EV) as energy storageand shared energy storage.

Keywords： energy storage system     energy storage resources management     planning configuration     operational management    

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Encapsulation of polyethylene glycol in cellulose-based porous capsules for latent heat storage and light-to-thermal

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 8,   Pages 1038-1050 doi: 10.1007/s11705-022-2279-3

Abstract: Phase change materials are potential candidates for the application of latent heat storage.glycol, the resulted cellulose-based composite phase change materials exhibited high thermal energy storagecellulose presented a highly interesting choice for thermal management and renewable thermal energy storage

Keywords： cellulose     polyelectrolytes     phase change materials     thermal energy storage     light-to-thermal conversion    

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Can energy storage make off-grid photovoltaic hydrogen production system more economical?

Frontiers of Engineering Management   Pages 672-694 doi: 10.1007/s42524-022-0245-x

Abstract: Considering the intermittence and variability of PV power generation, the deployment of battery energy storageHowever, the investment cost of battery energy storage is pertinent to non-negligible expenses.Thus, the installation of energy-storage equipment in a PVEH system is a complex trade-off problem.In addition, as technology costs drop, the LCOH of a PVEH system with energy storage will be less thanthat without energy storage in 2030.

Keywords： hydrogen     off-grid photovoltaic     energy storage     LCOH     engineering economics    

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Analysis of flow and heat transfer characteristics of porous heat-storage wall in greenhouse

OUYANG Li, LIU Wei

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 406-409 doi: 10.1007/s11708-008-0094-2

Abstract: The flow and heat transfer characteristics of porous heat-storage wall in greenhouse are studied by usingThe results show that the heat exchange between the air and the solid matrix of the porous heat-storageBecause the incidence of solar radiation on the porous heat-storage wall is not uniform, the new composite

Keywords： incidence     thermal conductivity     heat-storage     exchange     composite    

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Machine perfusion versus cold storage of livers: a meta-analysis

Sushun Liu,Qing Pang,Jingyao Zhang,Mimi Zhai,Sinan Liu,Chang Liu

Frontiers of Medicine 2016, Volume 10, Issue 4,   Pages 451-464 doi: 10.1007/s11684-016-0474-7

Abstract: receiving donation after cardiac death (DCD) livers preserved through machine perfusion (MP) or static cold storage

Keywords： machine perfusion     cold storage     DCD     meta-analysis    

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Experimental study and assessment of thermal energy storage mortar with paraffin/recycled brick powder

Luchen HAO; Jianzhuang XIAO; Wanzhi CAO; Jingting SUN

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 10,   Pages 1301-1314 doi: 10.1007/s11709-022-0883-4

Abstract: Thermal energy storage recycled powder mortar (TESRM) was developed in this study by incorporating paraffinless than that of normal mortar and the heating test results showed that TESRM had good thermal energy storage

Keywords： recycled powder mortar     recycled brick powder     thermal energy storage     paraffin     phase change material    

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China’s policy framework for carbon capture, utilization and storage: Review, analysis, and outlook

Frontiers in Energy 2023, Volume 17, Issue 3,   Pages 400-411 doi: 10.1007/s11708-023-0862-z

Abstract: Carbon capture, utilization, and storage (CCUS) is estimated to contribute substantial CO2

Keywords： carbon capture     utilization     and storage (CCUS)     policy     content analysis     China    

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Combined heat and power plant integrated with mobilized thermal energy storage (M-TES) system

Weilong WANG, Yukun HU, Jinyue YAN, Jenny NYSTR?M, Erik DAHLQUIST

Frontiers in Energy 2010, Volume 4, Issue 4,   Pages 469-474 doi: 10.1007/s11708-010-0123-9

Abstract: The mobilized thermal energy storage (M-TES) system is an alternative source of heat for detached buildings

Keywords： Mobilized thermal energy system     district heating     thermal energy storage     combined heat and power     detached    

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Chaotic behavior of LNG after stratification in main stream region of storage tank

WANG Jingjing, MA Xiaoqian

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 514-518 doi: 10.1007/s11708-008-0076-4

Abstract: chaotic behavior of liquefied natural gas (LNG) after stratification in the main stream region of a storageA small quantity of heat impacting the storage tank would lead to a strong and unstable convection of

Keywords： Runge-Kutta     non-linear     corresponding     temperature     addition    

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The carbon dioxide removal potential of Liquid Air Energy Storage: A high-level technical and economic

Andrew LOCKLEY, Ted von HIPPEL

Frontiers of Engineering Management 2021, Volume 8, Issue 3,   Pages 456-464 doi: 10.1007/s42524-020-0102-8

Abstract: Liquid Air Energy Storage (LAES) is at pilot scale.This paper proposes subsequent geological storage of this CO – offering a novel Carbon Dioxide Removal(CDR) by-product, for the energy storage industry.Similarly, established Compressed Air Energy Storage (CAES) uses air compression and subsequent expansionCAES could also add CO scrubbing and subsequent storage, at extra cost.

Keywords： carbon dioxide removal     Liquid Air Energy Storage     Compressed Air Energy Storage     geoengineering    

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MW pumped-storage power units

Jinyuan SHI , Yu YANG , Zhicheng DENG ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 337-340 doi: 10.1007/s11708-009-0032-y

Abstract: A reliability growth model for pumped-storage power units is presented.are given together with analysis results concerning the reliability growth of 300MW pumped-storagereliability growth indicate that measures taken for improving maintenance and operation by the pumped-storagepower companies are effective and that the reliability of the 300MW pumped-storage power units

Keywords： pump-storage power unit     availability     reliability growth     reliability prediction    

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Optimal portfolio design of energy storage devices with financial and physical right market

Frontiers in Energy 2022, Volume 16, Issue 1,   Pages 95-104 doi: 10.1007/s11708-021-0788-2

Abstract: environment with the day-ahead market and right market, the study associated with the portfolio of energy storageTo maximize the profit of energy storage and avoid the imbalance of power supply and consumption andprice fluctuation caused by transmission congestion, this paper presents a portfolio strategy of energy storageFirst, the concepts of financial/physical transmission rights and financial/physical storage rights are

Keywords： portfolio     node price fluctuation     transmission right     energy storage right     risk aversion    

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Title Author Date Type Operation

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

JIN Jing, ZHANG Zhongxiao, LI Ruiyang

Journal Article

Selective catalytic reduction of NOx from exhaust of lean-burn engine over Ag-Al2O3/cordierite catalyst

LI Junhua, KANG Shoufang, FU Lixin, HAO Jiming

Journal Article

NOx removal by non-thermal plasma reduction: experimental and theoretical investigations

Journal Article

Energy storage resources management: Planning, operation, and business model

Journal Article

Encapsulation of polyethylene glycol in cellulose-based porous capsules for latent heat storage and light-to-thermal

Journal Article

Can energy storage make off-grid photovoltaic hydrogen production system more economical?

Journal Article

Analysis of flow and heat transfer characteristics of porous heat-storage wall in greenhouse

OUYANG Li, LIU Wei

Journal Article

Machine perfusion versus cold storage of livers: a meta-analysis

Sushun Liu,Qing Pang,Jingyao Zhang,Mimi Zhai,Sinan Liu,Chang Liu

Journal Article

Experimental study and assessment of thermal energy storage mortar with paraffin/recycled brick powder

Luchen HAO; Jianzhuang XIAO; Wanzhi CAO; Jingting SUN

Journal Article

China’s policy framework for carbon capture, utilization and storage: Review, analysis, and outlook

Journal Article

Combined heat and power plant integrated with mobilized thermal energy storage (M-TES) system

Weilong WANG, Yukun HU, Jinyue YAN, Jenny NYSTR?M, Erik DAHLQUIST

Journal Article

Chaotic behavior of LNG after stratification in main stream region of storage tank

WANG Jingjing, MA Xiaoqian

Journal Article

The carbon dioxide removal potential of Liquid Air Energy Storage: A high-level technical and economic

Andrew LOCKLEY, Ted von HIPPEL

Journal Article

MW pumped-storage power units

Jinyuan SHI , Yu YANG , Zhicheng DENG ,

Journal Article

Optimal portfolio design of energy storage devices with financial and physical right market

Journal Article