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141
Modeling of Heat Exchange with Developed Nucleate Boiling on Tenons
Published 2007-12-01“…The intensity is determined by operating conditions, thermal and physical properties of liquid, internal characteristics of boiling processes and geometrical characteristics of a tenon.…”
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142
Simulation of Thin-Film Solar Cells with a CuInSe2 Chalcopyrite Structure
Published 2020-02-01“…By using numerical simulation, the operating temperatures of a thin-film solar cell based on CuInSe2 have been determined and the solar radiation density values, at which stabilization of the temperature operating conditions of the thin-film solar cell is not required, have been optimized. …”
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143
Design and Optimization of Fresnel Lens for High Concentration Photovoltaic System
Published 2014-01-01“…In addition, the change of refractive index due to temperature variation in outdoor operation conditions is also considered in the design stage. …”
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144
Experimental characterisation of active and non‐active harmonic power flow of AC rolling stock and interaction with the supply network
Published 2021-06-01“…Harmonic patterns of AC rolling stock and railway networks are analysed in terms of active and non‐active power flow, relating it to the characteristic of the network and to operating conditions, synthesised in the fundamental current intensity and speed. …”
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145
Ethylene-to-aromatics over metal-free hierarchical MFI zeolite: Boosting the BTX yield
Published 2025-03-01“…In this study, we investigate the effect of the zeolite properties and operation conditions on ethylene conversion. The results show that the appropriate amount of templates is crucial for optimizing the benefits of hierarchical zeolites. …”
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146
Mechanistic Multidimensional Modeling of Forced Convection Boiling Heat Transfer
Published 2009-01-01“…Due to the importance of boiling heat transfer in general, and boiling crisis in particular, for the analysis of operation and safety of both nuclear reactors and conventional thermal power systems, extensive efforts have been made in the past to develop a variety of methods and tools to evaluate the boiling heat transfer coefficient and to assess the onset of temperature excursion and critical heat flux (CHF) at various operating conditions of boiling channels. The objective of this paper is to present mathematical modeling concepts behind the development of mechanistic multidimensional models of low-quality forced convection boiling, including the mechanisms leading to temperature excursion and the onset of CHF.…”
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147
Cogasification of Coal and Biomass: A Review
Published 2012-01-01“…This paper documents research studies conducted on the cogasification of various types of coal and biomass using different types of gasifiers under various sets of operating conditions. In addition, the influence of cogasification on upstream and downstream processing is presented.…”
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148
Reliability Assessment Methodology for Massive Manufacturing Using Multi-Function Equipment
Published 2018-01-01“…The manufacturing process based on multifunction equipment gives a usual case of variation in operating conditions. This work presents a methodology for the reliability analysis of multifunction processes, using the RCM approach, and a modification of the Universal Generating Function (UGF) under a massive manufacturing context. …”
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149
Operational Method of Stem Turbine Installation under Non-Conventional Modes
Published 2011-04-01“…While starting turbines from cold and non-cooled-down states rotors are heated quicker than cylinders due to significantly less weight and more intensive interaction with steam and the value of their differential expansion reaches up to the rated ones in the period of 4-5 hours.The investigations have revealed that while using a swirling steam attemperator it is possible to feed steam to turbine seals of the required temperature and at the required time during its variable operational conditions. This methodology makes it possible to save 400 t of specific fuel. …”
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150
Calculation of Modes and Power Losses in 0.38 kV Electrical Networks in View of Repeated Earth Connection of Zero Wire
Published 2007-10-01“…A methodology has been developed to take account of repeated earth connection of a zero wire while making calculation of modes and losses in 0.38 kV and using method of nodal potentials that permits to refine operating conditions of a zero wire. It has been shown that an account of a repeated earth connection of a zero wire exerts an influence on parameters of a mode and power loss in the 0.38 kV network and in this case an influencing force is in direct proportion to unsymmetry degrees of load phase currents and is in inverse proportion to resistance of earthing devices and rods…”
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151
Optimization of Boiler Heat Load in Water-Heating Boiler-House
Published 2009-04-01“…This complex makes it possible to set a corresponding correction to a standard value of the boiler gross efficiency due to contamination of heating surfaces.Software means for optimization of water-heating boilers has been developed and it is recommended to be applied under operational conditions.…”
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152
Optimization of Asynchronous Electric Generator Parameters in System Wind Power Installations
Published 2004-12-01“…These polynomials make it possible to investigate the influence of asynchronous generator parameters and average wind velocity on quasi-stationary operational conditions of a system wind power installation. …”
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153
CFD Study of Industrial FCC Risers: The Effect of Outlet Configurations on Hydrodynamics and Reactions
Published 2012-01-01“…Fluid catalytic cracking (FCC) riser reactors have complex hydrodynamics, which depend not only on operating conditions, feedstock quality, and catalyst particles characteristics, but also on the geometric configurations of the reactor. …”
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154
An Investigation of Palladium Oxygen Reduction Catalysts for the Direct Methanol Fuel Cell
Published 2011-01-01“…A comparative study of Pd and Pt was carried out in DMFC using different methanol concentrations and under different operating conditions. Cell performance was compared at methanol concentrations of 1, 3, 5, and 7 M and at temperatures of 20, 40, and 60°C. …”
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155
Preanesthetic Evaluation and Assessment of Children with Down's Syndrome
Published 2007-01-01“…One of the challenges of evaluating pre-operative conditions and potential risks in the Down patient is the lack of a gold-standard evaluation score; cervical spine abnormalities, reduced dimensions and malformations of the airways, neurological changes, respiratory and cardiac disease, as well as endocrinological and metabolic alterations. …”
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156
Accurate Maximum Power Tracking in Photovoltaic Systems Affected by Partial Shading
Published 2015-01-01“…Experiments evidenced that, in comparison with a standard perturb and observe algorithm, we achieve faster convergence in normal operating conditions (when the solar field is uniformly illuminated) and we accurately locate the absolute maximum power point in partial shading conditions, thus avoiding the convergence on local maxima.…”
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157
Comparative analysis of single-stage reciprocating compressor compressing different gases
Published 2019-12-01“…Problems of mathematical modeling, calculation, research of a reciprocating compressor with consideration of real gas properties and actual operating conditions are considered using the example of a single-stage piston compressor. …”
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158
Experimental Investigation of Steady and Unsteady Flow Field Upstream and Downstream of an Automotive Torque Converter Pump
Published 1999-01-01“…The experimental data were processed at three different operating conditions: maximum efficiency point, design point and near-stall point. …”
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159
Evaporation Loss During Sprinkler Irrigation
Published 2018-07-01“…Strategies to mitigate evaporation loss include adjusting operating conditions to increase droplet size and avoiding high climate demand periods. …”
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160
Theoretical Analysis of Isentropic Exponent Effects on the Internal Flow of Supercritical CO2 Centrifugal Compressors
Published 2022-01-01“…The isentropic exponent in the near-critical region can sharply change with operation condition transitions of a closed Brayton cycle, thus having significant impacts on the compressor aerodynamic performance and the internal flow of the compressor embedded into the cycle. …”
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