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Comparison of combustion characteristics of petroleum coke and coal in one-dimensional furnace

Qulan ZHOU, Qinxin ZHAO, Guangjie ZHOU, Huiqing WANG, Tongmo XU, Shien HUI,

Frontiers in Energy 2010, Volume 4, Issue 3,   Pages 436-442 doi: 10.1007/s11708-009-0059-0

Abstract: air swirl strength and excess oxygen coefficient on the combustion characteristics of petroleum coke, Hejinlean coal and Shenmu soft coal are researched on a one-dimensional furnace using a dual channel swirlresults show that with the increase in primary air fraction , the NO emission concentrations of both Hejinlean coal and petroleum coke increase, and the combustion worsens in the earlier stage, but the burn-outrate of Shenmu soft coal is improved.

Keywords: petroleum coke     Shenmu soft coal     Hejin lean coal     combustion characteristics     experimental research    

Formation mechanism of solid product produced from co-pyrolysis of Pingdingshan lean coal with organic

Xiangchun Liu, Jun Hu, Ruilun Xie, Bin Fang, Ping Cui

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 2,   Pages 363-372 doi: 10.1007/s11705-020-1944-7

Abstract: A mixture of Pingdingshan lean coal and acid-treated Huadian oil shale was co-pyrolyzed in a drop-tubeshale were trapped by hydrogen-poor macromolecular radicals of the intermediate metaplast produced from coal

Keywords: co-pyrolysis     coal     oil shale     electron spin resonance     mechanism    

Progress in developing an innovative lean burn catalytic turbine technology for fugitive methane mitigation

Shi SU, Xinxiang YU

Frontiers in Energy 2011, Volume 5, Issue 2,   Pages 229-235 doi: 10.1007/s11708-011-0147-9

Abstract: Approximately 2.8 × 10 m of methane is emitted per year to the atmosphere from coal mining activitiesMitigation and utilization of the fugitive coal mine methane is very difficult because its concentrationutilization of the fugitive mine methane, and then presents research progress in developing an innovative lean

Keywords: coal mine methane     mitigation and utilization     lean burn gas turbine     catalytic combustion    

Lean Product Development—Faster, Better … Cleaner?

Geert Letens

Frontiers of Engineering Management 2015, Volume 2, Issue 1,   Pages 52-59 doi: 10.15302/J-FEM-2015007

Abstract: To address this challenge, lean product development has emerged to become the leading improvement methodologyWhile lean product development has its origin in the best practice studies of Japanese car manufacturersThe primary purpose of this work is to untangle the fuzziness that still surrounds lean product developmentand to ground the key aspects of lean product development based on insights from six studies publishedThis demonstrates how better and faster product development can be achieved through the integration of lean

Keywords: lean product development     sustainability engineering     responsible design    

Proposing a “lean and green” framework for equipment cost analysis in construction

Ming LU, Nicolas DIAZ, Monjurul HASAN

Frontiers of Engineering Management 2019, Volume 6, Issue 3,   Pages 384-394 doi: 10.1007/s42524-019-0033-4

Abstract: this paper formalizes an integrative framework for equipment cost analysis based on the concepts of lean

Keywords: green construction     lean construction     equipment     simulation     earthwork construction     sustainability     productivity    

Hotspots Evolution and Frontier Analysis of Lean Construction Research—Integrated Scientometric Analysis

Qing-hua He,Ge Wang

Frontiers of Engineering Management 2015, Volume 2, Issue 2,   Pages 141-147 doi: 10.15302/J-FEM-2015023

Abstract: To develop a lean and green construction industry, Lean Construction (LC) is proposed as a new constructionThree major directions of LC research: greening LC; Building Information Modeling (BIM) based LC; and lean

Keywords: Lean Construction     green industry     efficient use    

Experimental study of stratified lean burn characteristics on a dual injection gasoline engine

Chun XIA, Tingyu ZHAO, Junhua FANG, Lei ZHU, Zhen HUANG

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 900-915 doi: 10.1007/s11708-021-0812-6

Abstract: Lean burn mode could greatly reduce pumping loss and decrease the fuel consumption of gasoline enginesIn this study, dual injection stratified combustion mode is used to accelerate the burning rate of leanIt is shown that the lean burn limit can be extended to Lambda= 1.8 with a low compression ratio of 10There exists a spark window for dual injection stratified lean burn mode, in which the spark timing hasThe dual injection stratified lean burn has a wide range of applications which can effectively reduce

Keywords: dual injection     stratified lean burn     gasoline engine     particulate matter emission     combustion analysis    

Development and Prospects of Lean-type Swine Breeding

Xiong Yuanzhu

Strategic Study of CAE 2000, Volume 2, Issue 9,   Pages 42-46

Abstract:

In this paper, swine breeding process in the world, especially in China was summarized, including the investigation of native breed resources, importing excellent foreign breeds, selection of new breeds and special lines, cross utilization of special lines, breeding swine testing , etc. The application and achievements of molecular genetics and biotechnology in swine breeding were briefly introduced. The goals of swine breeding in 21st century were discussed, and some suggestion on selection and breeding of new breeds, preservation of swine genetic resources, breeding swine testing system and application of molecular genetics and biotechnology in swine breeding were presented.

Keywords: swine     lean-type     breeding    

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: The catalyst performance was tested on a real lean-burn gasoline engine.

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

Blockchain-driven supply chain finance solution for small and medium enterprises

Jian LI, Shichao ZHU, Wen ZHANG, Lean YU

Frontiers of Engineering Management 2020, Volume 7, Issue 4,   Pages 500-511 doi: 10.1007/s42524-020-0124-2

Abstract: Blockchain has attracted much attention in recent years with the development of cryptocurrency and digital assets. As the underlying technology of cryptocurrency, blockchain has numerous benefits, such as de-centralization, collective maintenance, tamper-resistance, traceability, and anonymity. The potential of the blockchain technology (BT) is widely recognized in the financial field. Although some scholars have proposed the combination of blockchain and supply chain finance (SCF), the details of this combination is rarely mentioned. This study first analyzes the coupling between SCF and blockchain technology. Second, the conceptual framework of blockchain-driven SCF platform (BcSCFP) is presented. Third, the operation process of three SCF models on the BcSCFP is proposed. Finally, a case study combined with actual events is conducted. This paper has a positive practical significance in the operation and management of banks and loan enterprises.

Keywords: blockchain technology     supply chain finance     risk management     smart contract     decentralization    

Owner-dominated building information modeling and lean construction in a megaproject

Mingyue LI, Zhuoling MA, Xi TANG

Frontiers of Engineering Management 2021, Volume 8, Issue 1,   Pages 60-71 doi: 10.1007/s42524-019-0042-3

Abstract: The integration of building information modeling (BIM) and lean construction (LC) provides a solution

Keywords: building information modeling     lean construction     airports     project management    

Numerical simulation of charge stratifications to improve combustion and NO formation of lean-burn SI

Zhijun PENG ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 353-358 doi: 10.1007/s11708-009-0035-8

Abstract: The influences of charge stratification on spark ignition (SI) engine combustion and NO emission were analyzed using a phenomenological model. The mixture in the cylinder was divided spherically into three parts: a central core with a stoichiometric air-fuel charge, a dilution region without any combustible charge, and a mixing region lying between the core and the dilution region. Three mixture stratification parameters such as the extent of dilution in the mixing region, the extent of combustible charge in the mixing region, and the gradient of stratification in the mixing region were investigated. The results indicate that the extent of combustible charge in the mixing region could reduce in-cylinder NO formation significantly, compared with the extent of dilution in the mixing region. As long as the degree of dilution in the mixing region is within the dilution limit of the combustible charge, the gradient of dilution has little effect on combustion and NO formation.

Keywords: charge stratification     SI engine     lean-burn combustion     NO emission    

The lean forming technology for auto sheet metal

Lin Zhongqin,Li Shuhui,Wang Wurong,Lai Xinmin

Strategic Study of CAE 2009, Volume 11, Issue 11,   Pages 22-29

Abstract:

The lean forming technology for auto sheet metal has been proposed, whichThe technical framework for auto sheet metal lean forming was constructed based on the idea of proper

Keywords: auto sheet metal     lean forming     proper material selection     process optimization     robust control    

Requirements in performance measurement systems of construction projects from the lean production perspective

Karina B. BARTH, Carlos T. FORMOSO

Frontiers of Engineering Management 2021, Volume 8, Issue 3,   Pages 442-455 doi: 10.1007/s42524-020-0108-2

Abstract: PM is also important in the implementation of lean production principles and methods, such as reducingMoreover, the adoption of the lean production philosophy requires changes in PM.importance, limited studies have been conducted on the use of PM systems for assessing the impact of leanIn addition, studies on how lean companies (or projects) use performance measurement and to what extentproduction and a taxonomy of performance metrics for lean production systems.

Keywords: performance measurement     lean construction     production management     continuous improvement     metrics    

Title Author Date Type Operation

Comparison of combustion characteristics of petroleum coke and coal in one-dimensional furnace

Qulan ZHOU, Qinxin ZHAO, Guangjie ZHOU, Huiqing WANG, Tongmo XU, Shien HUI,

Journal Article

Formation mechanism of solid product produced from co-pyrolysis of Pingdingshan lean coal with organic

Xiangchun Liu, Jun Hu, Ruilun Xie, Bin Fang, Ping Cui

Journal Article

Progress in developing an innovative lean burn catalytic turbine technology for fugitive methane mitigation

Shi SU, Xinxiang YU

Journal Article

Lean Product Development—Faster, Better … Cleaner?

Geert Letens

Journal Article

Proposing a “lean and green” framework for equipment cost analysis in construction

Ming LU, Nicolas DIAZ, Monjurul HASAN

Journal Article

Hotspots Evolution and Frontier Analysis of Lean Construction Research—Integrated Scientometric Analysis

Qing-hua He,Ge Wang

Journal Article

Experimental study of stratified lean burn characteristics on a dual injection gasoline engine

Chun XIA, Tingyu ZHAO, Junhua FANG, Lei ZHU, Zhen HUANG

Journal Article

Development and Prospects of Lean-type Swine Breeding

Xiong Yuanzhu

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

Blockchain-driven supply chain finance solution for small and medium enterprises

Jian LI, Shichao ZHU, Wen ZHANG, Lean YU

Journal Article

Owner-dominated building information modeling and lean construction in a megaproject

Mingyue LI, Zhuoling MA, Xi TANG

Journal Article

Numerical simulation of charge stratifications to improve combustion and NO formation of lean-burn SI

Zhijun PENG ,

Journal Article

The lean forming technology for auto sheet metal

Lin Zhongqin,Li Shuhui,Wang Wurong,Lai Xinmin

Journal Article

Requirements in performance measurement systems of construction projects from the lean production perspective

Karina B. BARTH, Carlos T. FORMOSO

Journal Article

Innovative approach of low carbon and efficient utilization of coal resources: The polygeneration systemof a combination of the gasified coal gas and the pyrolyzed coal gas to form the synthetic gas

Kechang XIE, Fan LI

Journal Article