BOOK AND FILM REVIEWS: A High Pressure World: The World of High Pressure

1970 ◽  
Vol 8 (4) ◽  
pp. 217-218
Author(s):  
John W. Stewart ◽  
C. A. Swenson
Keyword(s):  
High Pressure ◽  
The World ◽  
Film Reviews

scholarly journals Reaching for 60 Percent

2002 ◽  
Vol 124 (04) ◽  
pp. 35-39 ◽  
Author(s):  
Michael Valenti
Keyword(s):  
New York ◽  
High Pressure ◽  
Fuel Economy ◽  
Environmental Performance ◽  
New York State ◽  
Combined Cycle ◽  
York State ◽  
Cycle System ◽  
The World ◽  
H Design

The General Electric (GE) H turbine system in Wales is designed to be 60% thermally efficient. The Welsh installation will serve as a springboard for two other installations, planned for New York State and Tokyo, so that the technology will span three continents. The 480-megawatt H system in Wales is designed to be the first gas turbine combined-cycle system in the world to achieve 60% thermal efficiency. The main advantage provided by efficiency is economic, because fuel represents the largest single expense in running a fossil-fueled power plant. GE engineers based much of the H design on proven turbine technology, starting with the high-pressure compressors. Another advantage GE intends to stress in marketing its H turbines, along with fuel economy and environmental performance, is their greater power density.

BOOK AND FILM REVIEWS: Physics for Students: The World Of Physics

1972 ◽  
Vol 10 (4) ◽  
pp. 224-224
Author(s):  
R. Hulsizer ◽  
D. Lazarus ◽  
Richard A. Marble
Keyword(s):  
The World ◽  
Film Reviews

The Real Wealth of the World

2018 ◽  
pp. 209-228
Author(s):  
Andrew C. Isenberg
Keyword(s):  
United States ◽  
High Pressure ◽  
New Zealand ◽  
The United States ◽  
National Narratives ◽  
Pacific World ◽  
Hydraulic Mining ◽  
The World ◽  
Pressure Water ◽  
Industrial Mining

Beginning in 1848, the circum-Pacific world experienced dozens of gold rushes; they punctuated the histories of the United States, Canada, Australia, and New Zealand. Although individual prospectors dominate the national narratives of gold rushes, by the mid-1850s, industrial mining technologies had largely replaced individual miners with their pans and shovels. Notable among these industrial technologies was hydraulic mining, which used high-pressure water hoses to flush large amounts of gold-bearing gravel into sluice boxes saturated with mercury. Industrial mining technologies were portable—engineers who perfected hydraulic mining in California exported the practice to Australia, Canada, and New Zealand. Hydraulic mining exacted startling environmental costs: floods, deforestation, erosion, and toxic pollution. This chapter is by Andrew Isenberg.

Studies the Influence of HPP on Celery’s Transverse Texture and Tissue

2010 ◽  
Vol 113-116 ◽  
pp. 1456-1459
Author(s):  
Shu Lai Xu
Keyword(s):  
High Pressure ◽  
Food Industry ◽  
High Pressure Processing ◽  
Advanced Technology ◽  
World Food ◽  
Ultra High Pressure ◽  
The World ◽  
Before And After

In order to process and preserve vegetables by High Pressure Processing (HPP), the texture and tissue of celery processed by HPP was studied in this paper. HPP is gaining in popularity with the world food industry. However, processing and preservation of vegetables by HPP is an advanced technology. In this study, ten celery samples had been treated at the diverse pressure for different time respectively. Furthermore, the slices of the samples before and after HPP had been made and observed by microscope. Although little celery juice effused at ultra high pressure (600 MPa) for 5 min or at 400 MPa for longer time (more than 20 min), the comprehensive observations and analyses showed that in general the texture and tissue of celery could not be damaged by high pressure. The conclusion is that processing celery at 600 MPa for 5 min is the practicable technology.

Revisiting the ASME Pressure-Viscosity Report Using the Tait-Doolittle Correlations

2020 ◽  
Vol 143 (6) ◽  
Author(s):  
Thomas J. Zolper ◽  
Scott Bair ◽  
Kyle Horne
Keyword(s):  
High Pressure ◽  
Computer Software ◽  
Harvard University ◽  
Viscosity Data ◽  
Research Committee ◽  
Modern Computer ◽  
The World ◽  
New Generation ◽  
Doolittle Equation ◽  
High Pressure Equipment

Abstract The ASME Pressure-Viscosity Report was a seminal publication on high pressure-viscosity and density supervised by the ASME Research Committee on Lubrication, sponsored by dozens of industries, and undertaken by Harvard University using high-pressure equipment developed by Prof. P. W. Bridgman. The resulting measurements of the “Viscosity and Density of Over 40 Lubricating Fluids of Known Composition at Pressures to 150,000 psi (1034 MPa) and Temperatures to 425 °F (218.3 °C/491.5 K)” should have become an invaluable reference to tribologists around the world. The present work revisits that monumental effort to distill the results into an established equation of state using modern computer software. The authors used curve-fitting techniques to fit measured density and viscosity data to the parameters of the Tait-Doolittle equation for use in further tribological modeling. This information will help a new generation of engineers to model the piezoviscous properties of lubricant base-stocks in diverse tribological applications.

scholarly journals Assessment of CHF and Post-CHF Heat Transfer Models for High-Pressure Condition

2021 ◽  
Vol 9 ◽  
Author(s):  
Meiqi Song ◽  
Xiaojing Liu
Keyword(s):  
Heat Transfer ◽  
High Pressure ◽  
Literature Review ◽  
Prediction Models ◽  
Safety Analysis ◽  
Pressure Condition ◽  
Predictive Capability ◽  
The World ◽  
Transfer Models

Supercritical heat transfer systems may undergo trans-critical procedures and work at subcritical conditions during startup, shutdown, or some accidents. However, well-validated heat transfer models for the high-pressure condition (P/Pc>0.7) are still missing. In the present work, with exhaustive literature review, extensive experimental databanks of CHF and post-dryout heat transfer under high-pressure condition are established, respectively. Existing prediction models for the high-pressure condition are also summarized from all over the world. Thereby, with the aid of the high-pressure experimental databank, prediction models get evaluated. It has been demonstrated that CHF correlation developed by Song et al. shows good predictive capability. Post-dryout heat transfer could get well predicted by the Song correlation. These recommended prediction models could be implemented to upgrade safety analysis codes for simulation of trans-critical transients.

INVESTIGATION OF PROCESSES IN THE HIGH-PRESSURE CHAMBER OF SHOCK TUBE

2020 ◽  
Author(s):  
N. G. Bykova ◽  
◽  
I. E. Zabelinsky ◽  
P. V. Kozlov ◽  
Yu. V. Tunik ◽  
...  
Keyword(s):  
Shock Wave ◽  
High Pressure ◽  
Shock Tube ◽  
High Energy ◽  
Pressure Chamber ◽  
High Pressure Chamber ◽  
Shock Tubes ◽  
The World

There are several installations with shock tubes in the world, in which a shock wave in air propagates at a speed close to the second cosmic one. Such velocities are achieved by supplying of high energy (~ 1 MJ) to the pushing gas in the high-pressure chamber.

UNCONFINED HYDROGEN DETONATIONS: EXPERIMENTS, MODELING, AND SCALING

2020 ◽  
Author(s):  
M. KUZNETSOV ◽  
◽  
A. LELYAKIN ◽  
J. XIAO ◽  
W. BREITUNG ◽  
...  
Keyword(s):  
Experimental Data ◽  
High Pressure ◽  
Ambient Air ◽  
Wide Distribution ◽  
Safety Measures ◽  
The World ◽  
Accident Scenarios ◽  
Existing Data ◽  
High Technologies ◽  
Pressure Hydrogen

Hydrogen use as an energy carrier and wide distribution of hydrogen in high technologies over the world, especially taking into account the explosivity of hydrogen being mixed with ambient air, leads to strong demand of safety measures and safety distances evaluation. Unconfined explosion of hydrogen-air mixture or high-pressure hydrogen tank rupture are the worst accident scenarios to be well predicted and mitigated or avoided, if possible. Thus, the analysis of existing data and the new experimental data on hydrogen-air and high-pressure hydrogen explosions are required to develop the safety recommendations and user guidelines for industry and technologies.

Atmospheric Circulation and Variations in Scandinavian Glacier Mass Balance

1997 ◽  
Vol 47 (1) ◽  
pp. 29-36 ◽  
Author(s):  
Veijo Allan Pohjola ◽  
Jeffrey C. Rogers
Keyword(s):  
High Pressure ◽  
Mass Balance ◽  
Atmospheric Circulation ◽  
Barents Sea ◽  
Critical Factor ◽  
Glacier Mass Balance ◽  
Mountain Glaciers ◽  
The Barents Sea ◽  
The World ◽  
Northeastern Atlantic

AbstractMountain glaciers in Scandinavia are currently advancing while most of the monitored mountain glaciers of the world are retreating. We examine atmospheric circulation variability and compare changes in air pressure indices to changes in the mass balance of glaciers in the northeastern part of the Atlantic Ocean. The glacier mass balance correlates well with the strength of maritime flow in both winter and summer, the presence of high pressure over the Barents Sea being a critical factor in summer. The advance of Scandinavian glaciers is due partly to persistently strong westerlies over the northeastern Atlantic during post-1980 winters and partly to cold summertime flow, which together have helped maintain positive glacier net balance by decreasing ablation since 1980.

Convergence and the Rhetoric of Scientifilm

2019 ◽  
pp. 75-102
Author(s):  
J. P. Telotte
Keyword(s):  
Twentieth Century ◽  
Film Industry ◽  
The Self ◽  
Popular Imagination ◽  
Repeated Calls ◽  
The World ◽  
Sense Of Reality ◽  
Different Dimensions ◽  
Film Reviews ◽  
Common Field

Abstract: Film, Francesco Casetti argues, provided a common “field of convergence for different dimensions” of the popular imagination in the early twentieth century. We can see evidence of the extent of that “convergence” in the sort of discourse that unfolded in various other internal features of the pulps. Editorials, readers’ letters, and film reviews converge to demonstrate a sense of enthusiasm about the ability of films to supplement the work of SF by visualizing or realizing the genre’s ideas for reshaping the world and the self. That enthusiasm would bring repeated calls for the film industry to produce more SF-themed films, even to adapt favorite stories from the pulps. But as reviews of SF films began to proliferate in the pulps, particularly in the late 1930s, they would increasingly attest to a frustration or dissatisfaction with the sense of reality that was being achieved by the SF film and point to a rift beginning between the films and the world of SF literature.

Sign in / Sign up

Export Citation Format

Share Document