High-pressure forms of lithium sulphate: Structural determination and computer simulation

2005 ◽  
Vol 72 (5) ◽  
Author(s):  
David C. Parfitt ◽  
David A. Keen ◽  
Stephen Hull ◽  
Wilson A. Crichton ◽  
Mohamed Mezouar ◽  
...  
Keyword(s):  
Computer Simulation ◽  
High Pressure ◽  
Structural Determination ◽  
Lithium Sulphate

Effect of Composition and Wall Thickness on Mechanical Properties of High Pressure Die Castings

2014 ◽  
Vol 790-791 ◽  
pp. 241-246
Author(s):  
Jenő Dúl ◽  
Zsolt Leskó
Keyword(s):  
Mechanical Properties ◽  
Computer Simulation ◽  
High Pressure ◽  
Wall Thickness ◽  
Vacuum System ◽  
Die Geometry ◽  
Experimental Tool ◽  
Preparation Phase ◽  
Die Castings ◽  
Vacuum Systems

In this paper we present two types of currently used vacuum systems on the HPDC and the preparation phase of an experimental tool. To investigate the properties of HPD castings we have designed a die geometry that complies with requirements of vacuum and non-vacuum systems. We used computer simulation to shape up the runner-and overflow-system. In the course of our work we examined specimens with differing thickness and alloys with different compositions to check the changes of mechanical properties and the effect of vacuum system.

Comparison between two different solution-pumping methods in absorption refrigeration machines

2010 ◽  
Vol 21 (3) ◽  
pp. 16-22
Author(s):  
George Vicatos ◽  
E. Krafft
Keyword(s):  
Energy Source ◽  
Computer Simulation ◽  
High Pressure ◽  
Cooling Capacity ◽  
Simulation Program ◽  
Absorption Refrigeration ◽  
Computer Simulation Program ◽  
Vapour Mixture ◽  
Program Show

This paper presents a pumping method in absorp-tion refrigeration where a vapour-driven pump is to replace the electricity-driven pump. The vapour pump is driven by a fraction of the generator’s hot, high-pressure, vapour mixture. The refrigerator is thus exclusively heat-powered and rendered inde-pendent of the availability of electricity as the main energy source. The design and operation of the vapour pump is presented. The results obtained by a computer simulation program show a decrease in performance (COP), which is confirmed by the data obtained from a 1 kW cooling capacity refrigerator. Peak performances occur at higher generator tem-peratures when compared to a cycle using an elec-tricity-driven pump

scholarly journals High-pressure x-ray scattering and computer simulation studies of density-induced polyamorphism in silicon

2007 ◽  
Vol 75 (22) ◽  
Author(s):  
Dominik Daisenberger ◽  
Mark Wilson ◽  
Paul F. McMillan ◽  
Raul Quesada Cabrera ◽  
Martin C. Wilding ◽  
...  
Keyword(s):  
Computer Simulation ◽  
High Pressure ◽  
Simulation Studies ◽  
X Ray ◽  
X Ray Scattering ◽  
Computer Simulation Studies ◽  
Ray Scattering

Process Modeling of Ti-6Al-4V SPM Materials

1998 ◽  
Vol 521 ◽  
Author(s):  
S. S. Ahmed ◽  
G. Huang ◽  
H. Gegel ◽  
D. Barker
Keyword(s):  
Computer Simulation ◽  
High Pressure ◽  
Process Modeling ◽  
Hot Isostatic Pressing ◽  
Cost Effective ◽  
Porous Metals ◽  
Fem Model ◽  
Material Density ◽  
Standard Methods ◽  
Structural Applications

ABSTRACTStructural Porous Metals (SPM) was specifically designed to offer large weight reductions in structural applications. The pores of gas are incorporated into the SPM during hot isostatic pressing. Since the gas in the pores are at high pressure and are closed isolated pores, SPM can be processed by standard methods such as rolling or forging without collapsing the gas pores. The objective of this paper is to show that the combination of computer simulation and intrinsic workability modeling provide a rapid and cost-effective way, for understanding the process and selecting the process parameters. This paper explains how SPM material data and developed material density updating scheme can be used in conjunction with the existing theory and FEM model.

A computer simulation approach to the high pressure thermoelasticity of MgSiO3 perovskite

1996 ◽  
Vol 98 (1-2) ◽  
pp. 55-63 ◽  
Author(s):  
Atul Patel ◽  
G.David Price ◽  
Masanori Matsui ◽  
John P. Brodholt ◽  
Richard J. Howarth
Keyword(s):  
Computer Simulation ◽  
High Pressure ◽  
Simulation Approach ◽  
Mgsio3 Perovskite
Sign in / Sign up

Export Citation Format

Share Document