Analysis of the Significant Influence Factors of Spray Quenching Process

2014 ◽  
Vol 1082 ◽  
pp. 182-186
Author(s):  
Tie Xin Yang ◽  
He Ming Cheng ◽  
Jian Yun Li ◽  
Si Qing Zhou ◽  
Ji Feng Dai
Keyword(s):  
Water Flow ◽  
Influence Factors ◽  
Nitrogen Pressure ◽  
Quenching Rate ◽  
Aerosol Spray ◽  
Quenching Process ◽  
Two Factors ◽  
Calculation Results ◽  
New Type ◽  
Main Factor

In order to study thecharacteristics of this new type of quenching process that is atomized waterspray quenching, this article analyzes the influence factors of atomized waterspray quenching based on the newly developed aerosol spray quenching experimentdevice. Based on 2 method, the two factors of water flow and nitrogen pressureare controllable, we analyzed the influences of the two factors of nitrogenpressure and water flow to the quenching cooling time. This paper induces andanalyses the experiment results and numerical calculation results[1]. The conclusions are: water flow is the main factor ofaffecting the quenching rate, the interaction of the nitrogen pressure andwater flow is significant: when the nitrogen pressure is low ,the water flow ishigh, the quenching cooling rate is guaranteed.

Study on the Influence Factors of Dry Hollow Parallel Reactor Loss

2015 ◽  
Vol 734 ◽  
pp. 887-892
Author(s):  
Xiao Bing Guo ◽  
Xiang Yu Tan ◽  
Yong Hong Wang ◽  
Yan Wang ◽  
Kun Ming Zhao ◽  
...  
Keyword(s):  
Influence Factors ◽  
Calculation Model ◽  
Partial Loss ◽  
Loss Calculation ◽  
Local Branch ◽  
Individual Branch ◽  
Calculation Results ◽  
Reactor Production ◽  
Main Factor ◽  
Parallel Reactor

Reactor individual branch loss mutation is one of the important reasons leading to local temperature too high. In order to explore process deviation for dry type hollow shunt reactor loss amplification effect, this paper is establish a loss calculation model of dry-type air-core reactor as the tool, Comparative analysis relationship between the four common types of process deviation and the local branch loss. Calculation results show that the number of turns deviation are the main factor influencing the reactor partial loss, So the reactor production winding process should strengthen the control of the number of turns deviation.

The Cooling Characteristics of Quenching Mist under Different Conditions

2014 ◽  
Vol 941-944 ◽  
pp. 1995-1999
Author(s):  
He Ming Cheng ◽  
Si Qing Zhou ◽  
Jian Yun Li ◽  
Tie Xin Yang ◽  
Liang Chen ◽  
...  
Keyword(s):  
Cooling Rate ◽  
Water Flow ◽  
Test Object ◽  
Nitrogen Pressure ◽  
Operating Conditions ◽  
Water Mixture ◽  
The Core ◽  
Cooling Medium ◽  
Quenching Process ◽  
Cylindrical Test

Spray quenching process is nitrogen, water mixture as the cooling medium of the new quenching process. The research shows that the flow of water and nitrogen pressure can be controlled to achieve the purpose of cooling rate. T10 steel as a cylindrical test object, the different ratio of water flow, nitrogen pressure as different quenching conditions, it cooled from 780 °C to 10 °C time ranging from 48 to 270 seconds, and the surface of the core after quenching hardness changes in operating conditions as occurred with the change.

Topology Optimization Design of High Pressure Storage Tank Structure

2012 ◽  
Vol 430-432 ◽  
pp. 828-833
Author(s):  
Qiu Sheng Ma ◽  
Yi Cai ◽  
Dong Xing Tian
Keyword(s):  
Finite Element ◽  
High Pressure ◽  
Topology Optimization ◽  
Storage Tank ◽  
Optimization Design ◽  
Influence Factors ◽  
Element Model ◽  
Design Variables ◽  
Calculation Results ◽  
Pressure Storage

In this paper, based on ANSYS the topology optimization design for high pressure storage tank was studied by the means of the finite element structural analysis and optimization. the finite element model for optimization design was established. The design variables influence factors and rules on the optimization results are summarized. according to the calculation results the optimal design result for tank is determined considering the manufacturing and processing. The calculation results show that the method is effective in optimization design and provide the basis to further design high pressure tank.

The Research of Calculation Method on Vertical Natural Frequency of the New Full-Prefabricated Floor

2016 ◽  
Vol 846 ◽  
pp. 506-511
Author(s):  
Chong Fang Sun ◽  
Shu Ting Liang ◽  
Xiao Jun Zhu
Keyword(s):  
Numerical Simulation ◽  
Natural Frequency ◽  
Calculation Method ◽  
Variable Stiffness ◽  
Series Method ◽  
Numerical Simulation Result ◽  
Stiffness Method ◽  
Calculation Results ◽  
New Type ◽  
Test Result

New-type floor is composed of three kinds of slabs joined together through fittings. It is a kind of anisotropic two-way slab. In order to study the calculation method of natural frequency, series method, variable thickness method and variable stiffness method are adopted to calculate the natural frequency. The calculation results of three methods are compared with test result and numerical simulation result. The conclusion is that the calculation result of the variable stiffness method is the closest to the real natural frequency of new-type floor.

scholarly journals Preparation of side chain liquid crystal polyether chelating resin and its adsorption properties for Cu2+ in water

2021 ◽  
Author(s):  
Chaoyi Qian ◽  
Meng Li ◽  
Shuang Wang ◽  
Qing Gao ◽  
Huaiwei Yao ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Influence Factors ◽  
Chelating Resin ◽  
Side Chain ◽  
Order Kinetic ◽  
Adsorption Model ◽  
Order Kinetic Model ◽  
Group A ◽  
New Type ◽  
Cationic Ring Opening Polymerization

Abstract With epoxycyclohexane as critical modifying monomer, the copolyether was obtained by cationic ring-opening polymerization of epichlorohydrin and epoxycyclohexane. Then biphenyl was used as the mesogen, and diglycolamidic acid was used as the terminal chelating group, a new type of side chain liquid crystal polyether chelating resin was prepared at last. The adsorption influence factors, reuse performance, adsorption model and adsorption kinetics of the chelated resin on Cu 2+ in water were studied systematically. The results showed that the resin has good adsorption and reuse performance for the treatment of Cu 2+ in water, and the adsorption of Cu 2+ is Langmuir monolayer adsorption, and the adsorption process conforms to a quasi-second-order kinetic model. The adsorption performances of the chelated resin has great potential for recovery of copper resource from non-ferrous smelting industry.

scholarly journals A Multi-Attribute Decision-Making Algorithm Using Q-Rung Orthopair Power Bonferroni Mean Operator and Its Application

Mathematics ◽  
2020 ◽  
Vol 8 (8) ◽  
pp. 1240 ◽  
Author(s):  
Ping He ◽  
Zaoli Yang ◽  
Bowen Hou
Keyword(s):  
Decision Making ◽  
Influence Factors ◽  
Uncertain Information ◽  
Fuzzy Information ◽  
Bonferroni Mean ◽  
Decision Making Problem ◽  
Multi Attribute Decision Making ◽  
New Type ◽  
Multiple Variables ◽  
Internal Relationship

The process of decision-making is subject to various influence factors and environmental uncertainties, which makes decision become a very complex task. As a new type of decision processing tool, the q-rung orthopair fuzzy sets can effectively deal with complex uncertain information arising in the decision process. To this end, this study proposes a new multi-attribute decision-making algorithm based on the power Bonferroni mean operator in the context of q-rung orthopair fuzzy information. In this method, in view of multi-attribute decision-making problem of internal relationship between multiple variables and extreme evaluation value, the Bonferroni mean operator is combined with power average operator. Then, the integrated operator is introduced into the q-rung orthopair fuzzy set to develop a new q-rung orthopair power Bonferroni mean operator, and some relevant properties of this new operator are discussed. Secondly, a multi-attribute decision-making method is established based on this proposed operator. Finally, the feasibility and superiority of our method are testified via a numerical example of investment partner selection in the tourism market.

Corrugated SNOM probe with enhanced energy throughput

2008 ◽  
Vol 16 (4) ◽  
Author(s):  
T. Antosiewicz ◽  
T. Szoplik
Keyword(s):  
Near Field ◽  
Three Dimensional ◽  
Energy Output ◽  
Dipolar Field ◽  
Two Dimensional ◽  
The Core ◽  
Dimensional Approximation ◽  
New Type ◽  
Difference Time ◽  
Main Factor

AbstractIn a previous paper we proposed a modification of metal-coated tapered-fibre aperture probes for scanning near-field optical microscopes (SNOMs). The modification consists in radial corrugations of the metal-dielectric interface oriented inward the core. Their purpose is to facilitate the excitation of surface plasmons, which increase the transport of energy beyond the cut-off diameter and radiate a quasi-dipolar field from the probe output rim. An increase in energy output allows for reduction of the apex diameter, which is the main factor determining the resolution of the microscope. In two-dimensional finite-difference time-domain (FDTD) simulations we analyse the performance of the new type of SNOM probe. We admit, however, that the two-dimensional approximation gives better results than expected from exact three-dimensional ones. Nevertheless, optimisation of enhanced energy throughput in corrugated probes should lead to at least twice better resolution with the same sensitivity of detectors available nowadays.

Piezoelectric “Kumihimo-gumi” sensor fabricated by braiding method using piezoelectric poly-L-lactic acid fiber

2020 ◽  
Vol 557 (1) ◽  
pp. 43-57 ◽  
Author(s):  
Y. Tajitsu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Lactic Acid ◽  
Polyethylene Terephthalate ◽  
Wearable Sensor ◽  
The Finite Element Method ◽  
Complex Motion ◽  
Calculation Results ◽  
New Type ◽  
Plla Fiber

We have developed a piezoelectric braided cord consisting of a conducting fiber yarn core, piezoelectric poly-l-lactic acid (PLLA) fiber yarn and a polyethylene terephthalate (PET) middle sheath, and a conducting fiber outer shield (piezoelectric PLLA braided cord). Actually, we made various types of piezoelectric PLLA braided cords using Japanese traditional braiding method called as Kumihimo-gumi in Japanese. Furthermore, by optimization based on the calculation results for each type of piezoelectric PLLA Kumihimo-gumi obtained by the finite element method (FEM), we were able to develop a new type of piezoelectric PLLA braided cord with a sensing function for complex motion (piezoelectric PLLA Kumihimo-gumi). Finally, we developed a new wearable sensor for a selfie stick which is a popular smartphone accessory, fabricated from a piezoelectric PLLA Kumihimo-gumi.

The Nanofiltration Technology of Metoprolol in the Water Environment

2014 ◽  
Vol 955-959 ◽  
pp. 1013-1019
Author(s):  
Xin Miao Wang ◽  
Hai Yan Yang
Keyword(s):  
Ionic Strength ◽  
Removal Rate ◽  
Water Environment ◽  
Influence Factors ◽  
Advanced Treatment ◽  
Organic Micropollutants ◽  
Treatment Technology ◽  
Water And Wastewater Treatment ◽  
New Type ◽  
Water And Wastewater

Metoprolol (MET) is a common kind of Pharmaceuticals and personal care products (PPCPs), which belongs to a new type of organic micropollutants. And conventional water and wastewater treatment technology cannot remove the MET effectively, so it is necessary to adopt nanofiltration technology for advanced treatment. The influence factors on removal of Metoprolol (MET) in water by nanofiltration are mainly investigated in the study. According to the results, the removal rate of MET by nanofiltration all can reach more than 99% with the initial concentration increasing. Then the removal rate of MET by nanofiltration at different pressure values, pH, salt ionic strength conditions are also studied. The results have shown that the removal rate is increasing from 90.0% to about 99.0% while pressure goes up. When pH=5, the removal rate of MET by nanofiltration is slightly increasing. And the removal rate is decreasing from more than 98.0% to more than 92.0% with salt ionic strength increasing.

Sign in / Sign up

Export Citation Format

Share Document