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The thermal structure characteristic of the Solid Rocket Motor (SRM) nozzle component under thermal and flow field is investigated by finite element method (FEM). The sensitivity of contact parameter of friction coefficient between multi-layer structures on thermo-structure coupled simulation is priority analyzed and the individual test of the friction coefficient between real material of carbon/carbon...
Micro Combined Heat and Power (micro-CHP) generators combine the benefits of the high-efficiency cogeneration technology and microgeneration and is being promoted as a means of lowering greenhouse gas emissions by decentralizing the power network. Life Cycle Assessment of energy systems is becoming a part of decision making in the energy industry, helping manufacturers promote their low carbon devices,...
Based on the original cryogenic column conceived and built by National Institute for Research and Development of Isotopic and Molecular Technologies Cluj-Napoca, it is necessary to implement control algorithms for the industrial mode of operation of this equipment, in order to produce some chemical compounds with higher concentration in (13C), compounds asked in various domains. The present work deals...
Cyclic material tests in the low cycle fatigue(LCF) regime were carried out to study the effect of frequency, strain ratio and specimen dimension on LCF life of high strength low carbon steel(cold-rolled Q235 steel). A total of 83 experiments were performed under uniaxial tension-compression loading with total strain control. The LCF behavior of the test material was found to be strong dependent on...
In this study, we present design and manufacturing technology for the Salisbury screen type radar absorbing structure (RAS) in X-band. The RAS is composed of a dielectric lossy sheet and an E-glass fabric/epoxy composite laminate as the spacer. This RAS has a broader absorbing bandwidth and much thinner spacer than those of the conventional one which uses a 377 Ω/□ resistive sheet for the impedance...
Through related factors comparison of low-carbon interior design and traditional method, low-carbon materials for the interior design is developed. In this paper, charts on the low-carbon design and the traditional design from the concept, model, method, form, content, life cycle and other related factors, material selection as well as light, water, electricity, environmental systems, etc. can be...
Developing a promising CO2 sorbent is necessary during CO2 emission reduction process. Ca3SiO5 was synthesized by a solid state reaction of CaCO3 with SiO2, and characterized via X-ray diffraction (XRD) analysis, thermogravimetric analysis (TGA) and scanning electronic microscope (SEM). The investigation results showed that reaction of CO2 sorption and desorption is reversible. The optimal operation...
Mg-substituted olivine LiFePO4 samples with various substituted contents were prepared via a two-step method. The crystal structures of the as-prepared LiFe1−xMgxPO4 (x=0, 0.02, 0.1, 0.2) were detected by X-ray diffraction, and no impurities found. The electrochemical performances of the LiFe1−xMgxPO4 cathodes were evaluated by charge/discharge test, cyclic voltammetry, and electrochemical impedance...
Capstone Applied Research, CAR, an interdisciplinary student research and design group at Sweet Briar College was tasked to design the seating system in Edison2 Incorporated's The Very Light Car Version 4.0 (VLC v4.0). The VLC v4.0 is a commercially viable prototype based on the winning Progressive Auto Insurance X Prize High Mileage Competition version that seeks to create a cost effective and environmentally...
A absorbent was chose to absorb CS2 from industrial activated carbon (AC), 13X, NaY, ZSM-5. The results indicate that the adsorption of CS2 of the industrial activated carbon is better than the others. The modification of industrial activated carbon (AC) has been used in laboratory in order to make full use of high concentration CO comprehensively. AC was impregnated with Cu(Ac)2, Zn(Ac)2, Mn(Ac)2...
Graphene has received significant attention due to its excellent transport properties. Bilayer Graphene Nanoribbon (BGN), double Bernal stacked honeycomb sheets of carbon which have quadratic dispersion relations instead of single layer Graphene Nanoribbon (GNR) by linear dispersion, provides an interesting area of research activity. In this paper, we show that isolating properties appears in the...
In this paper, the author discusses the use of carbon composites, metal carbon composites and two types of carbon Nanopapers in Printed Circuit boards as a thermal control method. The emphasis is on directly mounting active power components on the thermal control layer to minimize cost and assembly complexity. Metal carbon composites, Bucky paper and Long Wall Carbon nanomaterials were acquired from...
This paper presents part of a joint venture between Dstl and LJMU. The purpose of this work is to investigate the interaction of electromagnetic (EM) waves within a resonant microwave cavity to sense and characterise filter materials for residual life indication. This paper looks at a single filter material, ASZM-TEDA activated carbon, which is commonly used for military applications where personnel...
In the present work, using Tween 80 as dispersant, acryl amide as monomer, biscrylamide as cross linking, MgO (20 mesh particle size) and TiC (50 nanometre particle size) as do pants, mesocarbon micro bead (MCMB) green bodies and sintered bodies which were used as tubular electrode support body of DMFC, were prepared with gel casting under carbon embedding condition. The performance of MCMB green...
A non-asbestos semi-metallic stainless steel/carbon fiber reinforced PEEK-based friction material was developed and applied in Tunnel Boring Machine(TBM) driven clutch friction plate. The uniform design method of 5 factors and 27 levels was used to design and optimize the match composition. The friction plates were manufactured by dry-processing procedure, comprising mixing, pre-heating, cold pressing,...
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