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Comprehensive performance analysis and optimization of 1,3-dimethylimidazolylium dimethylphosphate-water

Gorakshnath TAKALKAR, Ahmad K. SLEITI

Frontiers in Energy 2022, Volume 16, Issue 3,   Pages 521-535 doi: 10.1007/s11708-021-0720-9

Abstract: The performance validation of the ARS cycle showed a better coefficient of performance (COP) of 0.834absorber ( ), condenser ( ), generator ( ), and evaporator ( ) were simulated and optimized for a maximum COPand exergetic COP (ECOP).The effects of from 50°C to 150°C and and from 30°C to 50°C on COP and ECOP, the , , and circulationThe optimization revealed that needed to achieve a maximum COP which was more than that for a maximum

Keywords： ionic liquid driven absorption cycle     H2O-[mmim][DMP]     coefficient of performance (COP)     exergy    

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Performance of rolling piston type rotary compressor using fullerenes (C70) and NiFe

Ruixiang WANG,Yihao ZHANG,Yi LIAO

Frontiers in Energy 2020, Volume 14, Issue 3,   Pages 644-648 doi: 10.1007/s11708-017-0453-y

Abstract: A novel way for a compressor to improve its coefficient of performance was proposed in this paper.fullerenes nanocomposite is higher than 60 ppm and the concentration of nano-oil is 2 g/L, the friction coefficientThe coefficient of performance of the compressor under the air conditioning test condition can be raised

Keywords： rotary compressor     friction coefficient     nanocomposite materials     coefficient of performance     fullerenes    

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How diplomacy saved the COP21 Paris Climate Conference, but now, can we save ourselves?

D. Nathaniel MULCAHY, David L. MULCAHY

Frontiers in Energy 2018, Volume 12, Issue 3,   Pages 344-352 doi: 10.1007/s11708-017-0498-y

Abstract: The 2015 COP21 Paris accord was a masterful, perhaps even world-saving, diplomatic advance toward makinghandling, could easily have evoked overwhelming political opposition to an agreement and thus another COPhow some scientific truths, written specifically to be overlooked, were presented in order to prepare COP21

Keywords： COP21     Paris     climate     agreement     offsets     mitigation     IPCC    

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Nonlinear design-point performance adaptation approaches and their comparisons for gas turbine applications

Y. G. LI, P. PILIDIS,

Frontiers in Energy 2009, Volume 3, Issue 4,   Pages 446-455 doi: 10.1007/s11708-009-0042-9

Abstract: Accurate performance simulation and understanding of gas turbine engines is very useful for gas turbineTherefore, the simulated design point performance of an engine may be slightly different from its actualperformance.In this paper, two nonlinear gas turbine design-point performance adaptation approaches have been presentedto best estimate the unknown component parameters and match available design point engine performance

Keywords： gas turbine     engine     performance adaptation     performance matching     design-point performance simulation     influencecoefficient matrix     genetic algorithm    

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>In situ growth of phosphorized ZIF-67-derived amorphous CoP/Cu2O@CF electrocatalyst

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1430-1439 doi: 10.1007/s11705-023-2320-1

Abstract: cobalt phosphide/ZIF-67 heterojunction on a self-supporting copper foam (CF) substrate with excellent performanceThe intermediate product was phosphorized to obtain final electrocatalyst (CoP/Cu2O@CF) withIt also showed competitive performance at large current which indicated the potential application to, the d-band center of CoP downshifted after bonding with ZIF-67 and the Gibbs free energy (ΔCoP/Cu2O@CF catalyst, which will act as

Keywords： CoP/Cu2O@CF     electrocatalyst     phosphorization     HER     DFT    

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Evaluation of the performance of a centralized ground-water heat pump system in cold climate region

Shilei LU,Zhe CAI,Li ZHANG,Yiran LI

Frontiers in Energy 2014, Volume 8, Issue 3,   Pages 394-402 doi: 10.1007/s11708-014-0310-1

Abstract: The aim of this study is to evaluate the performance of a centralized open-loop ground-water heat pumpThe analysis of the testing data indicates that the average heat-pump coefficient of performance (COP) and the COP of the system (COPs) are 4.27 and 2.59.The low value and large fluctuation in the range of COP are found to be caused by the heat transfixionTherefore, some suggestions are proposed to improve the performance for GWHPs in the cold climate region

Keywords： ground-water heat pump (GWHP)     actual coefficient of performance     heat transfixion    

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Performance evaluation of coordinated management of construction projects

Guo Feng,Liu Hui

Strategic Study of CAE 2011, Volume 13, Issue 8,   Pages 97-102

Abstract:

The combination of both function coefficient method and logframe approachwas employed to construct the performance evaluation index system of coordinated management of constructionIn addition, the way was given to calculate the comprehensive performance evaluation coefficient of coordinatedmanagement of construction projects, quantifying the evaluation of the performance of the coordinatedIn the end, the method to construct index system and calculate the coefficient was proved by an empirical

Keywords： coordinated management of construction projects     performance evaluation index system     function coefficient    

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Experimental study on performance of passive and active solar stills in Indian coastal climatic condition

R. LALITHA NARAYANA, V. RAMACHANDRA RAJU

Frontiers in Energy 2020, Volume 14, Issue 1,   Pages 105-113 doi: 10.1007/s11708-018-0536-4

Abstract: This present work is aimed to examine the effect of mass flow rate on distillate output and performanceobserved that the capacity of heat storage and heat drop are significant parameters that affect the still performanceinternal heat transfer coefficients with the mass flow rate have a significant effect on the yield and performance

Keywords： distillation efficiency     solar still     heat transfer coefficient     water depth     optimum and mass flow rate    

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RETRACTED ARTICLE: Momentum exchange coefficient for two jet flows mixing in a tee junction

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 2161-2161 doi: 10.1007/s11705-009-0143-3

Abstract: RETRACTED ARTICLE: Momentum exchange coefficient for two jet flows mixing in a tee junction

Keywords： tee junction     Momentum exchange coefficient     RETRACTED    

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Atomic Interface Catalytically Synthesizing SnP/CoP Hetero-Nanocrystals within Dual-Carbon Hybrids for Article

Chen Hu,Yanjie Hu,Aiping Chen,Xuezhi Duan,Hao Jiang,Chunzhong Li,

Engineering 2022, Volume 18, Issue 11,   Pages 154-160 doi: 10.1016/j.eng.2021.11.026

Abstract: Herein, an in situ catalytic phosphorization strategy is developed to synthesize SnP/CoP hetero-nanocrystalsThe lithiation/delithiation mechanism is disclosed, showing that the 4.0 nm sized SnP/CoP nanocrystalspossess a very high reversibility and that the previously formed metallic Co of CoP at a relatively

Keywords： Catalytic phosphorization     SnP     Hetero-nanocrystals     Fast charging     Li-ion batteries    

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Experimental study of heat transfer coefficient with rectangular baffle fin of solar air heater

Foued CHABANE,Nesrine HATRAF,Noureddine MOUMMI

Frontiers in Energy 2014, Volume 8, Issue 2,   Pages 160-172 doi: 10.1007/s11708-014-0321-y

Abstract: The heat transfer coefficient between the absorber plate and air can be considerably increased by using

Keywords： Nusselt number     flow rate     heat transfer     heat transfer coefficient     thermal efficiency     forced convection    

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A photolysis coefficient for characterizing the response of aqueous constituents to photolysis

David R. HOKANSON,Ke LI,R. Rhodes TRUSSELL

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 428-437 doi: 10.1007/s11783-015-0780-3

Abstract: Quantum yield ( ) and molar absorption coefficient ( ) are the two critical parameters measuring theIt was shown that this product, named the photolysis coefficient, , can be determined using standardThe development showed the photolysis coefficient to be equally useful for microbiological, inorganicValues of calculated by the authors based on quantum yield and molar absorption coefficient data from

Keywords： UV photolysis     disinfection     advanced oxidation     N-nitrosodimethylamine     quantum yield     absorption coefficient    

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Effect of heat transfer coefficient of steam turbine rotor on thermal stress field under off-design condition

Jie GUO,Danmei XIE,Hengliang ZHANG,Wei JIANG,Yan ZHOU

Frontiers in Energy 2016, Volume 10, Issue 1,   Pages 57-64 doi: 10.1007/s11708-015-0385-3

Abstract: significance for safe and economic operation, in which an accurate calculation of heat transfer (HT) coefficientHT coefficient changes dramatically along with working conditions.The result shows that the accuracy of coefficient calculation when steam parameters are low has a greaterinfluence on that of rotor temperature and thermal stress, which means a precise empirical HT coefficientWhen steam parameters are high and HT coefficient is larger than 10 W/(m ·°C), there will be barely

Keywords： steam turbine     rotor     thermal stress     heat transfer coefficient     empirical formula    

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COP26: Some progress, but nations still fiddling while world warms

Sean O´Neill  

Engineering 2022, Volume 11, Issue 4,   Pages 6-8 doi: 10.1016/j.eng.2022.02.004

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Dimensionality reduction and prediction of soil consolidation coefficient using random forest coupling

Hai-Bang LY; Huong-Lan Thi VU; Lanh Si HO; Binh Thai PHAM

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 2,   Pages 224-238 doi: 10.1007/s11709-022-0812-6

Abstract: The consolidation coefficient of soil (Cv) is a crucial parameter used for the designThe performance of the proposed models was assessed via statistical indicators, namely Coefficient ofThe results revealed that all models performed well with a high performance (R2 > 0.980

Keywords： soil consolidation coefficient     machine learning     random forest     Relief    

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Title Author Date Type Operation

Comprehensive performance analysis and optimization of 1,3-dimethylimidazolylium dimethylphosphate-water

Gorakshnath TAKALKAR, Ahmad K. SLEITI

Journal Article

Performance of rolling piston type rotary compressor using fullerenes (C70) and NiFe

Ruixiang WANG,Yihao ZHANG,Yi LIAO

Journal Article

How diplomacy saved the COP21 Paris Climate Conference, but now, can we save ourselves?

D. Nathaniel MULCAHY, David L. MULCAHY

Journal Article

Nonlinear design-point performance adaptation approaches and their comparisons for gas turbine applications

Y. G. LI, P. PILIDIS,

Journal Article

>In situ growth of phosphorized ZIF-67-derived amorphous CoP/Cu2O@CF electrocatalyst

Journal Article

Evaluation of the performance of a centralized ground-water heat pump system in cold climate region

Shilei LU,Zhe CAI,Li ZHANG,Yiran LI

Journal Article

Performance evaluation of coordinated management of construction projects

Guo Feng,Liu Hui

Journal Article

Experimental study on performance of passive and active solar stills in Indian coastal climatic condition

R. LALITHA NARAYANA, V. RAMACHANDRA RAJU

Journal Article

RETRACTED ARTICLE: Momentum exchange coefficient for two jet flows mixing in a tee junction

Journal Article

Atomic Interface Catalytically Synthesizing SnP/CoP Hetero-Nanocrystals within Dual-Carbon Hybrids for

Chen Hu,Yanjie Hu,Aiping Chen,Xuezhi Duan,Hao Jiang,Chunzhong Li,

Journal Article

Experimental study of heat transfer coefficient with rectangular baffle fin of solar air heater

Foued CHABANE,Nesrine HATRAF,Noureddine MOUMMI

Journal Article

A photolysis coefficient for characterizing the response of aqueous constituents to photolysis

David R. HOKANSON,Ke LI,R. Rhodes TRUSSELL

Journal Article

Effect of heat transfer coefficient of steam turbine rotor on thermal stress field under off-design condition

Jie GUO,Danmei XIE,Hengliang ZHANG,Wei JIANG,Yan ZHOU

Journal Article

COP26: Some progress, but nations still fiddling while world warms

Sean O´Neill  

Journal Article

Dimensionality reduction and prediction of soil consolidation coefficient using random forest coupling

Hai-Bang LY; Huong-Lan Thi VU; Lanh Si HO; Binh Thai PHAM

Journal Article