Development of a Fourth Generation Energy Recovery Device

2004 ◽  
Author(s):  
Richard L. Stover
Keyword(s):  
Engineering Design ◽  
Energy Recovery ◽  
Technology Development ◽  
Performance Data ◽  
Fourth Generation ◽  
Development Work ◽  
Design Considerations ◽  
Technical Advances

Energy Recovery, Inc’s Big Rotor Pressure Exchanger is the result of over 100 years of technology development. Work exchanger devices developed for SWRO plants are considered by many to be the most important breakthrough in desalination in the last 10 years. What has made this breakthrough possible and how have these devices affected the job of designing SWRO systems? ERI Chief Technical Officer Dr. Richard Stover presents the challenges and solutions of the design and deployment of the PX. PX performance data and engineering design considerations from operating SWRO-PX process configurations and PX arrays will be provided. Recent technical advances and future products will be discussed.

Design for well-being: The fourth generation of technology development

2021 ◽  
pp. 101775
Author(s):  
Mahdi Kafaee ◽  
Zeinab Ansarian ◽  
Mostafa Taqavi ◽  
Sedighe Heidari
Keyword(s):  
Technology Development ◽  
Well Being ◽  
Fourth Generation

Study of the Fourth-Generation Communication Technology Standards in Internet of Things

2012 ◽  
Vol 433-440 ◽  
pp. 2498-2503
Author(s):  
Quan Bo Yuan ◽  
Feng Juan Qu ◽  
Hui Zhao ◽  
Li Yuan Liu
Keyword(s):  
Internet Of Things ◽  
Communication Technology ◽  
Technology Development ◽  
Fourth Generation ◽  
Communications Technology ◽  
Third Generation ◽  
Technology Standards ◽  
Network Development ◽  
Key Technology ◽  
Internet Of Things Technology

At present,Chinese third-generation communications technology (3G) has been applied, and global internet of things technology development has been put on the agenda. The fourth-generation communication technology will be discussed based on the wireless communication field, mainly introducing the development situation of fourth-generation communication system. In the paper, the key technology will be discussed in detail, and is involved in domestic network development. Finally, the fourth-generation communication technology in the network is prospected.

Design Guidelines for Doubler Plate Repairs of Ship Structures

2005 ◽  
Author(s):  
Pradeep K. Sensharma ◽  
Malcolm Willis ◽  
Aaron Dinovitzer ◽  
Nat Nappi
Keyword(s):  
Engineering Design ◽  
Low Cost ◽  
Design Guidelines ◽  
Performance Data ◽  
Ship Structures ◽  
Buckling Strength ◽  
Relative Ease ◽  
Fatigue And Fracture ◽  
Fracture Assessment ◽  
Design Guidance

The use of doubler plates or ‘doublers’ has become routine for temporary ship repairs. It is the preferred method for ships’ structural repairs for plate corrosion due to its relative ease and low cost of installation over the more costly permanent welded plate insert repair. A lack of performance data and engineering design guidance are the reasons that repairs with doublers are currently considered only temporary. This objective of this study was to develop a set of guidelines for designing and applying doubler plate repairs to ship structures. The guidelines were established using the following criteria: various stress analyses, buckling strength, corrosion types and rates, weld types, and doubler plate fatigue and fracture assessment. Studying and understanding doubler plate repair performance by comparison to that of the primary hull performance allows critical operational decisions to be made with greater ease and confidence. However, the ultimate goal of this study was to establish the design and limitations on the applications of doubler plate repairs for surface ships.

Engineering Design Considerations of the ORLAU Swivel Walker

1986 ◽  
Vol 15 (1) ◽  
pp. 3-8 ◽  
Author(s):  
J. Stallard ◽  
I R Farmer ◽  
R Poiner ◽  
R E Major ◽  
G K Rose
Keyword(s):  
Engineering Design ◽  
Design Considerations

Configuration E-7 Supersonic Fighter/Attack Technology Program

1990 ◽  
Vol 112 (2) ◽  
pp. 212-216 ◽  
Author(s):  
J. E. Jenista ◽  
D. S. Bodden
Keyword(s):  
Wind Tunnel ◽  
Technology Development ◽  
Full Scale ◽  
Test Program ◽  
Technology Program ◽  
Design Considerations ◽  
Initial Design ◽  
Vertical Lift ◽  
Propulsion Concept

The program covering the design and early technology development of Configuration E-7, a supersonic STOVL Fighter/Attack aircraft, is described. This aircraft uses the ejector principle to augment engine fan air for vertical lift. The initial design objectives selected in 1980 are listed and discussed. Some design considerations applicable to the propulsion concept and the chosen configuration are mentioned. The test program accomplished thus far, including wind tunnel models plus other test articles and activities, is outlined. The program has proceeded without major technological obstacles and a full-scale engine-powered model will soon be ready for testing.

Design and Technology Development Status and Design Considerations for Innovative Small and Medium Sized Reactors

2008 ◽  
Author(s):  
Vladimir V. Kuznetsov
Keyword(s):  
Nuclear Power ◽  
Economies Of Scale ◽  
Technology Development ◽  
Design And Technology ◽  
Power Station ◽  
Design Considerations ◽  
Plant Construction ◽  
Electrical Grids ◽  
Incremental Capacity ◽  
Maintenance Requirements

There is continuing interest in Member States in the development and application of small and medium sized reactors (SMRs), i.e., the reactors with an equivalent electric power of less that 700 MW. In 2006–2007, several distinct ‘families’ of innovative SMRs comprising more than 50 innovative concepts and designs have been analyzed or developed by national or international programmes involving Argentina, Brazil, China, Croatia, France, India, Indonesia, Italy, Japan, Republic of Korea, Lithuania, Morocco, Russian Federation, South Africa, Turkey, USA, and Vietnam. Innovative SMRs are under development for all principal reactor lines. The target dates when they could be ready for deployment protrude from 2010 to 2030. The designers of innovative small and medium sized reactors pursue new design and deployment strategies making use of certain advantages provided by smaller reactor size and capacity to achieve reduced design complexity and simplified operation and maintenance requirements, and to provide for incremental capacity increase through multiple plant clustering or multi-module plant construction. Competitiveness of SMRs depends on the incorporated strategies to overcome loss of economies of scale but equally it depends on finding appropriate market niches for such reactors, which generically include markets with limited investment capability potentially benefiting from reaching the targeted nuclear power station capacity incrementally, small electrical grids, off-grid locations, and non-electrical applications of nuclear power.

Sign in / Sign up

Export Citation Format

Share Document