Design of Separating Screen for Tenebrio molitor L

2014 ◽  
Vol 543-547 ◽  
pp. 258-262
Author(s):  
Li Ping Wang ◽  
Yi Guo ◽  
Gang Fu ◽  
Jiang Hui Dong
Keyword(s):  
Performance Test ◽  
High Efficiency ◽  
Structural Parameters ◽  
Low Cost ◽  
Tenebrio Molitor ◽  
Vector Method ◽  
Working Principle ◽  
Design Requirements ◽  
And Performance ◽  
Easy Operation

In order to meet requirement of separation screen for tenebrio molitor L, one separation screen was designed, this product has a good separation, simple structure, low cost, high efficiency, easy operation. Based on the analysis of design requirement of separating screen for tenebrio molitor L, overall structure, working principle and the main structural parameters were determined. The kinematic mathematical model of shaking mechanism was established by using the vector method. The kinematics analysis of shaking mechanism was conducted by using Matlab, the displacement, velocity and acceleration curves of sieve box were obtained. The performance test showed that the prototype machine can screen different instar tenebrio molitor L and frass, this machine has good screening effect. In addition, machine design and performance are able to meet the design requirements.

Optical Nano-Antennas for Energy Harvesting

2015 ◽  
pp. 26-62 ◽  
Author(s):  
Salah Obayya ◽  
Nihal Fayez Fahmy Areed ◽  
Mohamed Farhat O. Hameed ◽  
Mohamed Hussein Abdelrazik
Keyword(s):  
Solar Cells ◽  
Energy Harvesting ◽  
Solar Energy ◽  
Photonic Crystals ◽  
High Efficiency ◽  
Low Cost ◽  
Harvesting Efficiency ◽  
And Performance ◽  
Nano Wires ◽  
Nano Antennas

The solar energy is able to supply humanity energy for almost another 1 billion years. Optical nano-antennas (ONAs) are an attractive technology for high efficiency, and low-cost solar cells. These devices can be classified to semiconductor nano-wires and metallic nano-antenna. Extensive studies have been carried out on ONAs to investigate their ability to harvest solar energy. Inspired by these studies, the scope of the chapter is to highlight the latest designs of the two main types of ONAs. The metallic nano-antennas are discussed based on the following points: plasmon, modeling, and performance of antenna designs using different configurations and materials. Moreover, the semiconductor nano-wires are studied thoroughly in terms of photonic crystals, antenna design with different patterns, nano-wire forms and materials. Also, the applications of ONAs and their fabrication aspects such as diode challenges are presented in detail. Finally, three novel designs of ONAs are presented and numerically simulated to maximize the harvesting efficiency.

Influences of Heat Treatment on Spinning Process with Large Thinning Rate and Performance of 30CrMnSiA

2012 ◽  
Vol 160 ◽  
pp. 97-102 ◽  
Author(s):  
Dong Han ◽  
He Yang ◽  
Mei Zhan ◽  
Ming Yang Yang ◽  
Shao Zheng Mou ◽  
...  
Keyword(s):  
High Efficiency ◽  
Low Cost ◽  
Annealing Process ◽  
Shape Accuracy ◽  
Spinning Process ◽  
Forming Efficiency ◽  
Thin Walled ◽  
And Performance ◽  
Lower Ratio ◽  
Thinning Rate

In order to improve the limits of wall thickness reduction of 30CrMnSiA steel in process of spinning, realize multi-pass continuous spinning process, and furthermore improve the forming efficiency and shape accuracy of thin-walled shell of 30CrMnSiA steel in spinning process, the influence of traditional annealing and austenization plus spheroidal annealing on the structure performance of 30CrMnSiA steel and the spun performance of 30CrMnSiA steel are studied. Process parameters of traditional anneal and austenize plus spheroidal annealing are optimized to obtain higher plastic performance and lower ratio of yield strength to tensile strength. Spinning experiments of the workpieces that have been heattreated by the optimized traditional annealing process and austenization plus spheroidal process are completed. The result shows that the optimized austenization plus spheroidal annealing is beneficial to achieve a large thinning rate for flow spinning process, and can meet the demands of low cost and high efficiency of batch production.

Conceptual Design and Performance Analysis of Parallel Drive-Train for Hybrid Electric Motorcycle

2014 ◽  
Vol 699 ◽  
pp. 782-787
Author(s):  
Sun Jie Teoh ◽  
Abu Bakar Rosli ◽  
Gan Leong Ming ◽  
Mustika Yasti
Keyword(s):  
High Efficiency ◽  
Combustion Engine ◽  
Low Cost ◽  
Control Unit ◽  
Drive Train ◽  
Maximum Torque ◽  
Power Sources ◽  
Electric System ◽  
Hybrid Electric ◽  
And Performance

Increasing numbers of motorcycles are causing urban source of unregulated pollutants which are hazardous to environment and human health. Hybrid electric motorcycle (HEM) could be a solution to the problem as the electric system operates at high efficiency, allow diversification of energy resources, zero local emission and work silently. A HEM with parallel drive-train configuration has better fuel economy but post complex drive-train. In this paper, a parallel drive-train is proposed where two numbers of one way clutch are used to isolate the power source components when operating at different speed. The parallel drive-train allows the control unit to utilize and manage the power sources efficiently by operating at various modes based on the driving requirement. Meantime, maximum torque is available in blended mode when the internal combustion engine and electric motor operate simultaneously. The proposed drive-train posts the advantages of being simple, low cost and ease for control design for a HEM.

Dynamic Simulation of Electric Nail Gun Test Rig

2011 ◽  
Vol 58-60 ◽  
pp. 1252-1257
Author(s):  
Ze Yu Weng ◽  
Gan Xiang ◽  
Geng Yuan Gao ◽  
Hong Gang Ding
Keyword(s):  
Dynamic Simulation ◽  
Dynamic Characteristics ◽  
Parametric Analysis ◽  
Performance Test ◽  
Simulation Software ◽  
Prototype Model ◽  
Test Rig ◽  
Working Principle ◽  
Design Requirements ◽  
The Relationship

Performance test rig of the electric nail gun consists of five partsand the key one of which is the loading mechanism. By analyzing its working principle, virtual prototype model of the loading mechanism was established using simulation software ADAMS. Through simulation of the prototype model, the design requirements of the loading mechanism were given. Then, using the method of parametric analysis, dynamic characteristics of loading mechanism was obtained. Eventually, the relationship between the preload force of loading spring and the implanted force of the sample nail was presented.

scholarly journals Decreasing of BOD Concentration on Artificial Domestic Wastewater Using Anaerob Biofilter Reactor Technology

2018 ◽  
Vol 31 ◽  
pp. 03016
Author(s):  
Sri Sumiyati ◽  
P. Purwanto ◽  
S. Sudarno
Keyword(s):  
Water Body ◽  
High Efficiency ◽  
Low Cost ◽  
Domestic Wastewater ◽  
Quality Standard ◽  
Anaerobic Reactor ◽  
Reactor Technology ◽  
Urban Problem ◽  
Easy Operation ◽  
Receiving Water

Pollution of domestic wastewater becomes an urban problem. Domestic wastewater contains a variety of pollutants. One of the pollutant parameters in domestic wastewater is BOD. Domestic wastewater which BOD concentrations exceeding the quality standard will be harmful to the environment, particularly the receiving water body. Therefore, before being discharged into the environment, domestic wastewater needs to be processed first. One of the processing that has high efficiency, low cost and easy operation is biofilter technology. The purpose of this research was to analyze the efficiency of BOD concentration reduction in domestic wastewater with anaerobic reactor biofilter using volcanic gravel media. The type of reactor used is an anaerobic biofilter made of glass which volume of 30 liters while the biofilter media is volcanic gravel. In this research the established HRT were 24, 12, 6 and 3 hours. The results showed that the efficiency of BOD concentration reduction in artificial domestic wastewater reached 80%.

Design and Simulation of a Single DOF Human-Like Leg Mechanism

2013 ◽  
Vol 332 ◽  
pp. 491-496 ◽  
Author(s):  
Ionut Daniel Geonea ◽  
Cătălin Alexandru ◽  
Alexandru Margine ◽  
Alin Ungureanu
Keyword(s):  
Degrees Of Freedom ◽  
Low Cost ◽  
Virtual Simulation ◽  
Kinematics And Dynamics ◽  
Dynamics Analysis ◽  
Simulation Results ◽  
Leg Motion ◽  
And Performance ◽  
Motion Characteristics ◽  
Easy Operation

In this paper is carried out the selection and simulation of a one degrees of freedom (DOF) leg mechanism. The leg mechanism consist of a nine bar linkage and is based on a Low-cost Easy-operation idea. Virtual simulation tests of the model shows the feasible of the proposed leg mechanism, for human leg motion assistance. Kinematics and dynamics analysis of the leg mechanism is carried out. Finally, dynamic simulation results reveal the motion characteristics and performance of the leg mechanism.

Manufacture and Performance Simulation of a Visible Miniature Loop Heat Pipe

2007 ◽  
Author(s):  
Yan Qu ◽  
Lin Cheng ◽  
Tao Luan
Keyword(s):  
Heat Pipe ◽  
Low Cost ◽  
Cooling Water ◽  
Loop Heat Pipe ◽  
Performance Simulation ◽  
Acrylic Glass ◽  
Design Requirements ◽  
And Performance ◽  
Mechanical Machining ◽  
Sintering Method

This paper initiates mechanical machining technique, material processing and thermal science to realize a relative low-cost visual miniature loop heat pipe (mLHP) and simulates the stress distribution and heat transfer characteristics of this mLHP using the softwares MSC-NASTRAN and SINDA/FLUINT respectively. mLHP body is made of stainless steel except the condenser and cooling water jacket which are made of acrylic glass in order to make visualization research inside the mLHP. The sintering wick with good capillary force and enough strength is obtained using the cold pressing sintering method. Both the mechanical stress and the thermal analysis indicate that this new loop heat pipe may meet the design requirements and work well for a heat input up to 40W.

Design and Development of a Haynes 242® Nozzle Case for the Solar Mercury 50 Gas Turbine

2000 ◽  
Author(s):  
Heather McGregor ◽  
Devin Martin ◽  
Paul Browning ◽  
Michael Fitzpatrick ◽  
Krishna Srivastava ◽  
...  
Keyword(s):  
High Efficiency ◽  
Process Development ◽  
Low Cost ◽  
Department Of Energy ◽  
Ring Rolling ◽  
Component Design ◽  
Low Thermal Expansion ◽  
Alloy Process ◽  
Microstructural Evaluation ◽  
Design Requirements

In a joint effort between Solar Turbines Incorporated, Haynes International, and Doncasters Blaenavon, concurrent component design and manufacturing process development were undertaken to produce a Haynes 242 turbine nozzle case for Solar Turbines’ Mercury 50 engine. The Mercury 50 is a high efficiency, 4.2 MW generator set, developed through a cooperative agreement with the U.S. Department of Energy within the Advanced Turbine Systems (ATS) Program. Significant effort was applied to development of a reduced lead time, reliable, low cost process for producing a component with properties meeting design requirements. The resulting process involves the forging of (508-mm) 20-inch diameter ingots to (308-mm) 12-inch diameter billets, and ring rolling each billet to the final pre-machined shape. Further refinement in both billet manufacture and ring rolling are being conducted. The resulting component benefits from the desirable elevated temperature properties and uncoated oxidation resistance of Haynes 242, a next-generation, low thermal expansion alloy. In this paper, critical aspects of the turbine nozzle case design, and alloy process development will be presented. Microstructural evaluation of various billet forging processing routes will be related to mechanical properties, which in turn will be evaluated relative to design requirements.

Sign in / Sign up

Export Citation Format

Share Document