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into the heat transfer characteristics of spiral wall with internal rib in a supercritical sliding-pressure

TANG Renhu, YIN Fei, WANG Haijun, CHEN Tingkuan

Frontiers in Energy 2007, Volume 1, Issue 3,   Pages 300-304 doi: 10.1007/s11708-007-0043-5

Abstract: transfer enhancement of the internally ribbed tube could postpone departure from nucleate boiling at the sub-criticalpressure.However, the heat transfer enhancement decreased near the critical pressure.nucleate boiling at sub-critical pressure.When pressure is closer to the critical pressure, the temperature difference between the wall and the

Keywords： m ·     diameter     critical pressure     sub-critical pressure     maximum    

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China ADS sub-critical experimental assembly—Venus-1 and preliminary experiment

SHI Yongqian, XIA Pu, LUO Zhanglin, ZHAO Zhixiang, DING Dazhao, ZHU Qinfu, XIA Haihong, LI Jigen, ZHANG Wei, CAO Jian, QUAN Yanhui, LUO Huangda, WU Xiaofei

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 150-157 doi: 10.1007/s11708-007-0019-5

Abstract: China s accelerator-driven sub-critical system (ADS) sub-critical experimental assembly Venus-1 and theOn July 18, 2005, the first fuel element was loaded into the Venus-1 sub-critical assembly and some preliminaryexperiments about the sub-critical neutronics were performed.

Keywords： coupled     D-D reaction     dynamic     pulsed neutron     sub-critical assembly    

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Simulation of cross-flow-induced vibration of tube bundle by surface vorticity method

WANG Fenghao, JIANG Gedong, Lin John Zhang

Frontiers in Energy 2008, Volume 2, Issue 3,   Pages 243-248 doi: 10.1007/s11708-008-0049-7

Abstract: square and a staggered tube bundle in three-row and five-column arrangements were simulated in the high sub-critical

Keywords： dominant     sub-critical Reynolds     staggered     Vorticity     three-row    

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The summary of researches on ADS in China

XIA Haihong, ZHAO Zhixiang, LI Jigen, SHI Yongqian, HAN Yinlu, ZHU Shengyun, XU Yongli, GUAN Xialing, CUI Baoqun, FU Shinian

Frontiers in Energy 2007, Volume 1, Issue 2,   Pages 135-140 doi: 10.1007/s11708-007-0017-7

Abstract: research activities were focused on HPPA physics and technology, reactor physics of external source driven sub-criticalIt s a zero power sub-critical neutron multiplying assembly driven by external neutron produced by a

Keywords： accelerator     national     multiplying assembly     sub-critical assembly     simulation    

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Simulation of the optimal heat rejection pressure for transcritical CO

Junlan YANG, Yitai MA, Minxia LI, Hua TIAN

Frontiers in Energy 2010, Volume 4, Issue 4,   Pages 522-526 doi: 10.1007/s11708-010-0027-8

Abstract: The simulation results show that a maximum COP exists at the optimal heat rejection pressure not onlyIn order to further obtain correlation of the optimal heat rejection pressure for transcritical CO expanderBased on the simulation results, the values of the optimal heat rejection pressure for the expander cycle

Keywords： transcritical CO<sub>2sub> cycle     optimal heat rejection pressure     simulation     expander    

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Terahertz time-domain spectroscopy of high-pressure flames

Jason BASSI, Mark STRINGER, Bob MILES, Yang ZHANG

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 123-133 doi: 10.1007/s11708-009-0033-x

Abstract: far-infrared absorption spectra, to the best of our knowledge, of sooty, non-premixed, ethylene high-pressureA specially designed high-pressure burner which is optically accessible to THz radiation has been built

Keywords： terahertz time-domain spectroscopy     high-pressure flames     H<sub>2sub>O absorption lines    

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Greenhouse gas emissions from different pig manure management techniques: a critical analysis

Conor Dennehy, Peadar G. Lawlor, Yan Jiang, Gillian E. Gardiner, Sihuang Xie, Long D Nghiem, Xinmin Zhan

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 3, doi: 10.1007/s11783-017-0942-6

Abstract: Manure management is the primary source of greenhouse gas (GHG) emissions from pig farming, which in turn accounts for 18% of the total global GHG emissions from the livestock industry. In this review, GHG emissions (N O and CH emissions in particular) from individual pig manure (PGM) management practices (European practises in particular) are systematically analyzed and discussed. These manure management practices include manure storage, land application, solid/liquid separation, anaerobic digestion, composting and aerobic wastewater treatment. The potential reduction in net GHG emissions by changing and optimising these techniques is assessed. This review also identifies key research gaps in the literature including the effect of straw covering of liquid PGM storages, the effect of solid/liquid separation, and the effect of dry anaerobic digestion on net GHG emissions from PGM management. In addition to identifying these research gaps, several recommendations including the need to standardize units used to report GHG emissions, to account for indirect N O emissions, and to include a broader research scope by conducting detailed life cycle assessment are also discussed. Overall, anaerobic digestion and compositing to liquid and solid fractions are best PGM management practices with respect to their high GHG mitigation potential.

Keywords： CH<sub>4sub>     N<sub>2sub>O     Storage     Anaerobic digestion     Composting     Separation    

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Study of the robustness of a low-temperature dual-pressure process for removal of CO

Stefania Moioli, Laura A. Pellegrini, Paolo Vergani, Fabio Brignoli

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 2,   Pages 209-225 doi: 10.1007/s11705-017-1688-1

Abstract: The growing use of energy by most of world population and the consequent increasing demand for energy are making unexploited low quality gas reserves interesting from an industrial point of view. To meet the required specifications for a natural gas grid, some compounds need to be removed from the sour stream. Because of the high content of undesired compounds (i.e., CO ) in the stream to be treated, traditional purification processes may be too energy intensive and the overall system may result unprofitable, therefore new technologies are under study. In this work, a new process for the purification of natural gas based on a low temperature distillation has been studied, focusing on the dynamics of the system. The robustness of the process has been studied by dynamic simulation of an industrial-scale plant, with particular regard to the performances when operating conditions are changed. The results show that the process can obtain the methane product with a high purity and avoid the solidification of carbon dioxide.

Keywords： CO<sub>2sub> capture     innovative process     cryogenic distillation     dynamic simulation     solid-liquid-vapor    

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PSS sorbents for removing trace hydrogen sulfide in methane

Limei ZHONG, Li ZHOU

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 339-342 doi: 10.1007/s11705-010-0569-7

Abstract: Sorbents of the pressure swing sorption process (PSS) to remove trace amount of H S (190 ppm) contained

Keywords： pressure swing sorption     H<sub>2sub>S     methane     carrier     absorbent    

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Biodiesel production from waste frying oil in sub- and supercritical methanol on a zeolite Y solid acid

Jorge MEDINA-VALTIERRA, Jorge RAMIREZ-ORTIZ

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 4,   Pages 401-407 doi: 10.1007/s11705-013-1354-1

Abstract: In this study biodiesel was produced from WFO in sub- and super-critical methanol on a zeolite Y solidThe transesterification of WFO with methanol around its critical temperature combined with a zeolite

Keywords： biodiesel     methanol     critical temperature     waste frying oil     zeolite Y    

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Reduction kinetics of SrFeO/CaO∙MnO nanocomposite as effective oxygen carrier for chemical looping partial oxidation of methane

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 12,   Pages 1726-1734 doi: 10.1007/s11705-022-2188-5

Abstract: In this work, the kinetics of SrFeO<sub>3−δsub>–CaO∙MnO nanocomposite reduction by methane wasoxidation includes a solid conversion term whose expression is given by the A3 model and a methane pressure-dependentThe partial oxidation is half order with respect to methane pressure.

Keywords： chemical looping reforming     SrFeO<sub>3−δsub>/CaO·MnO nanocomposite     reduction kinetics     Avrami–Erofeyevmodel     pressure-dependent term    

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Structure improvement and strength finite element analysis of VHP welded rotor of 700°C USC steam turbine

Jinyuan SHI,Zhicheng DENG,Yong WANG,Yu YANG

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 88-104 doi: 10.1007/s11708-015-0387-1

Abstract: The optimized structure strength design and finite element analysis method for very high pressure (VHP) rotors of the 700°C ultra-super-critical (USC) steam turbine are presented.condition, 110% rated speed, 120% rated speed, cold start, warm start, hot start, very hot start, sliding-pressure

Keywords： 700°C ultra-super-critical unit     steam turbine     very high pressure rotor     structure strength design     strength    

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Microbial biodegradation of plastics: Challenges, opportunities, and a critical perspective

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 12, doi: 10.1007/s11783-022-1596-6

Abstract:

● Health hazards of plastic waste on environment are discussed.

Keywords： Plastic-waste     Polymers     Health-hazards     Biodegradation     Microorganisms     Enzymes    

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Machine learning in building energy management: A critical review and future directions

Frontiers of Engineering Management 2022, Volume 9, Issue 2,   Pages 239-256 doi: 10.1007/s42524-021-0181-1

Abstract: Over the past two decades, machine learning (ML) has elicited increasing attention in building energy management (BEM) research. However, the boundary of the ML-BEM research has not been clearly defined, and no thorough review of ML applications in BEM during the whole building life-cycle has been published. This study aims to address this gap by reviewing the ML-BEM papers to ascertain the status of this research area and identify future research directions. An integrated framework of ML-BEM, composed of four layers and a series of driving factors, is proposed. Then, based on the hype cycle model, this paper analyzes the current development status of ML-BEM and tries to predict its future development trend. Finally, five research directions are discussed: (1) the behavioral impact on BEM, (2) the integration management of renewable energy, (3) security concerns of ML-BEM, (4) extension to other building life-cycle phases, and (5) the focus on fault detection and diagnosis. The findings of this study are believed to provide useful references for future research on ML-BEM.

Keywords： building energy management     machine learning     integrated framework     knowledge evolution    

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Reducing environmental impacts through socioeconomic transitions: critical review and prospects

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 2, doi: 10.1007/s11783-023-1624-1

Abstract:

● Reducing environmental impacts through socioeconomic structural transitions.

Keywords： Environmental pressures     Environmental impacts     Nexus     Supply chains     Trade     Coupled systems    

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Title Author Date Type Operation

into the heat transfer characteristics of spiral wall with internal rib in a supercritical sliding-pressure

TANG Renhu, YIN Fei, WANG Haijun, CHEN Tingkuan

Journal Article

China ADS sub-critical experimental assembly—Venus-1 and preliminary experiment

SHI Yongqian, XIA Pu, LUO Zhanglin, ZHAO Zhixiang, DING Dazhao, ZHU Qinfu, XIA Haihong, LI Jigen, ZHANG Wei, CAO Jian, QUAN Yanhui, LUO Huangda, WU Xiaofei

Journal Article

Simulation of cross-flow-induced vibration of tube bundle by surface vorticity method

WANG Fenghao, JIANG Gedong, Lin John Zhang

Journal Article

The summary of researches on ADS in China

XIA Haihong, ZHAO Zhixiang, LI Jigen, SHI Yongqian, HAN Yinlu, ZHU Shengyun, XU Yongli, GUAN Xialing, CUI Baoqun, FU Shinian

Journal Article

Simulation of the optimal heat rejection pressure for transcritical CO

Junlan YANG, Yitai MA, Minxia LI, Hua TIAN

Journal Article

Terahertz time-domain spectroscopy of high-pressure flames

Jason BASSI, Mark STRINGER, Bob MILES, Yang ZHANG

Journal Article

Greenhouse gas emissions from different pig manure management techniques: a critical analysis

Conor Dennehy, Peadar G. Lawlor, Yan Jiang, Gillian E. Gardiner, Sihuang Xie, Long D Nghiem, Xinmin Zhan

Journal Article

Study of the robustness of a low-temperature dual-pressure process for removal of CO

Stefania Moioli, Laura A. Pellegrini, Paolo Vergani, Fabio Brignoli

Journal Article

PSS sorbents for removing trace hydrogen sulfide in methane

Limei ZHONG, Li ZHOU

Journal Article

Biodiesel production from waste frying oil in sub- and supercritical methanol on a zeolite Y solid acid

Jorge MEDINA-VALTIERRA, Jorge RAMIREZ-ORTIZ

Journal Article

Reduction kinetics of SrFeO/CaO∙MnO nanocomposite as effective oxygen carrier for chemical looping partial oxidation of methane

Journal Article

Structure improvement and strength finite element analysis of VHP welded rotor of 700°C USC steam turbine

Jinyuan SHI,Zhicheng DENG,Yong WANG,Yu YANG

Journal Article

Microbial biodegradation of plastics: Challenges, opportunities, and a critical perspective

Journal Article

Machine learning in building energy management: A critical review and future directions

Journal Article

Reducing environmental impacts through socioeconomic transitions: critical review and prospects

Journal Article