Evaluation of Irreversibility and Optimal Design of an Integrated System of Multiflow Heat Exchange

2019 ◽  
Vol 53 (6) ◽  
pp. 1001-1011
Author(s):  
A. M. Tsirlin ◽  
A. A. Akhremenkov ◽  
S. Yu. Boikov
Keyword(s):  
Heat Exchange ◽  
Optimal Design ◽  
Integrated System

The Integrated Mechanical Function Test System of Material and Structural Fatigue Damage

2012 ◽  
Vol 532-533 ◽  
pp. 398-402
Author(s):  
Yu Lan Wei ◽  
Bing Li ◽  
Sui Ying Jin ◽  
Kai Kai Chen
Keyword(s):  
Optimal Design ◽  
Test System ◽  
Integrated System ◽  
Detection Methods ◽  
Signal Acquisition ◽  
Mechanical Function ◽  
Structural Fatigue ◽  
Material Functions ◽  
Function Test ◽  
And Function

An integrated system to measure mechanical functions of material or structure is introduced. This system is able to provide more detection methods and experiment environments. And it can discover the characteristics and mechanisms of damnification and breakage in materials, considering the effects of loading and environments. Material functions were analyzed in many aspects, including loading, strain, light, sound, temperature and infrared to ensure the safety of materials and configuration of unmanned plane. Current study has laid a foundation for realizing optimal design of unmanned plane. In this paper, theory, components, and function of the system were discussed, as well as signal acquisition and analysis.

scholarly journals Modeling and Assessment of a Biomass Gasification Integrated System for Multigeneration Purpose

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Shoaib Khanmohammadi ◽  
Kazem Atashkari ◽  
Ramin Kouhikamali
Keyword(s):  
Optimal Design ◽  
Objective Function ◽  
Electrical Power ◽  
Clean Energy ◽  
Biomass Gasification ◽  
Integrated System ◽  
Design Parameters ◽  
Base Case ◽  
Cost Rate ◽  
Gasification Process

The use of biomass due to the reduction in greenhouse gas emissions and environmental impacts has attracted many researchers’ attention in the recent years. Access to an energy conversion system which is able to have the optimum performance for applying valuable low heating value fuels has been considered by many practitioners and scholars. This paper focuses on the accurate modeling of biomass gasification process and the optimal design of a multigeneration system (heating, cooling, electrical power, and hydrogen as energy carrier) to take the advantage of this clean energy. In the process of gasification modeling, a thermodynamic equilibrium model based on Gibbs energy minimization is used. Also, in the present study, a detailed parametric analysis of multigeneration system for undersigning the behavior of objective functions with changing design parameters and obtaining the optimal design parameters of the system is done as well. The results show that with exergy efficiency as an objective function this parameter can increase from 19.6% in base case to 21.89% in the optimized case. Also, for the total cost rate of system as an objective function it can decrease from 154.4 $/h to 145.1 $/h.

An integrated system for shape optimal design

1988 ◽  
Vol 30 (1-2) ◽  
pp. 337-346 ◽  
Author(s):  
S.D. Rajan ◽  
A.D. Belegundu ◽  
J. Budiman
Keyword(s):  
Optimal Design ◽  
Integrated System

Optimal design and analysis of a new CHP-HP integrated system

2017 ◽  
Vol 146 ◽  
pp. 217-227 ◽  
Author(s):  
Hongqiang Li ◽  
Shushuo Kang ◽  
Lin Lu ◽  
Lifang Liu ◽  
Xiaofeng Zhang ◽  
...  
Keyword(s):  
Optimal Design ◽  
Integrated System

scholarly journals Optimal design of mass timber panels as dynamic insulation: simulations of steady and transient heat exchange

2021 ◽  
Vol 2042 (1) ◽  
pp. 012185
Author(s):  
Anna Halepaska ◽  
Salmaan Craig
Keyword(s):  
Heat Exchange ◽  
Optimal Design ◽  
Heat Exchangers ◽  
Building Envelopes ◽  
Dynamic Insulation ◽  
Design Case ◽  
Building Heat ◽  
Mass Timber ◽  
Steady Heat ◽  
Heat Exchange Efficiency

Abstract Mass timber panels could be designed as heat exchangers for use in building envelopes. Fresh air, drawn through geometrically optimized channels in the panel, is pre-tempered with building heat that would otherwise be lost to the exterior via conduction. Recent experiments have shown that timber heat exchanging panels can approach U ~0.1 W/m2K – but there are potential limitations. The sizing correlations which predict panel geometry and steady heat exchange must be numerically calibrated for building-scale contexts, the heat-exchange efficiency must be verified virtually, and practical thresholds for transient response time must be determined. This study uses numerical simulations to investigate these factors for one design ‘case’ of timber panels, and establishes a methodology for studies of further cases.

FR-IR Molecular Microanalysis System

1990 ◽  
Vol 48 (2) ◽  
pp. 270-271
Author(s):  
John A. Reffner ◽  
William T. Wihlborg
Keyword(s):  
Fourier Transform ◽  
Fourier Transform Infrared ◽  
Integrated System ◽  
Morphological Examination ◽  
Fully Integrated ◽  
Ir Microscopy ◽  
Normal Functions ◽  
Infrared Microspectroscopy ◽  
Infrared Spectral ◽  
Ft Ir

The IRμs™ is the first fully integrated system for Fourier transform infrared (FT-IR) microscopy. FT-IR microscopy combines light microscopy for morphological examination with infrared spectroscopy for chemical identification of microscopic samples or domains. Because the IRμs system is a new tool for molecular microanalysis, its optical, mechanical and system design are described to illustrate the state of development of molecular microanalysis. Applications of infrared microspectroscopy are reviewed by Messerschmidt and Harthcock.Infrared spectral analysis of microscopic samples is not a new idea, it dates back to 1949, with the first commercial instrument being offered by Perkin-Elmer Co. Inc. in 1953. These early efforts showed promise but failed the test of practically. It was not until the advances in computer science were applied did infrared microspectroscopy emerge as a useful technique. Microscopes designed as accessories for Fourier transform infrared spectrometers have been commercially available since 1983. These accessory microscopes provide the best means for analytical spectroscopists to analyze microscopic samples, while not interfering with the FT-IR spectrometer’s normal functions.

Fate of sperm membrane in fertilized ova

1993 ◽  
Vol 51 ◽  
pp. 40-41
Author(s):  
Frank J. Longo
Keyword(s):  
Electron Microscopy ◽  
Electrical Activity ◽  
Sea Urchins ◽  
Morphological Changes ◽  
Integrated System ◽  
Electrophysiological Recording ◽  
Experimental Conditions ◽  
The Status ◽  
Sperm Membrane ◽  
Temporal And Spatial

Measurement of the egg's electrical activity, the fertilization potential or the activation current (in voltage clamped eggs), provides a means of detecting the earliest perceivable response of the egg to the fertilizing sperm. By using the electrical physiological record as a “real time” indicator of the instant of electrical continuity between the gametes, eggs can be inseminated with sperm at lower, more physiological densities, thereby assuring that only one sperm interacts with the egg. Integrating techniques of intracellular electrophysiological recording, video-imaging, and electron microscopy, we are able to identify the fertilizing sperm precisely and correlate the status of gamete organelles with the first indication (fertilization potential/activation current) of the egg's response to the attached sperm. Hence, this integrated system provides improved temporal and spatial resolution of morphological changes at the site of gamete interaction, under a variety of experimental conditions. Using these integrated techniques, we have investigated when sperm-egg plasma membrane fusion occurs in sea urchins with respect to the onset of the egg's change in electrical activity.

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