Steam, gas, and liquids play an important role in all industrial processes. To reduce costs and optimize production, their consumption, storage and demand have to be constantly monitored and controlled. Vortex meters are very suitable for such tasks, being easily assembled, reliable, accurate, and suitable for almost any fluid. When...
Ramp meters in the Twin Cities have been the subject of a recent test of their effectiveness, involving turning them off for 8 weeks. This paper analyzes the results with and without ramp metering for several representative freeways during the afternoon peak period. Seven performance measures: mobility, equity, productivity, consumers'...
This paper discusses and provides information about the Coriolis meters. Coriolis meters have grown in popularity during the past five years. In many process plants, users are selecting them to replace differential pressure DP meters. Despite their higher initial purchase price, many users find them a good investment when cost...
This paper articulates about the new trends of technology in the water industry. The trend toward new-technology flowmeters is having a major impact on the water and wastewater industry. The electronic meters are used primarily for raw water ? bulk water, including measurements in water treatment plants, rather than residences....
This paper defines "new technology" flowmeters as Coriolis, magnetic, ultrasonic, vortex and multivariable differential pressure DP meters. They have four features in common. First, they have been introduced in the last 50 years. Second, they incorporate technological advances that avoid some of the problems inherent in earlier flowmeters. Third, they...
Many end users of differential pressure DP transmitters today are facing a dilemma. Should they upgrade to new-technology flowmeters, or stick with tried and true DP meters? Of course, some end users at large plants may choose to upgrade some of their DP meters, and stick with DP technology elsewhere...
This paper articulates about the calibration of flowmeters and its use. Flowmeters with moving parts, such as turbine and positive-displacement meters, need to be calibrated periodically to determine the effects of wear on the meters. Many experts believe that ultrasonic flowmeters used to measure natural gas should be calibrated before...
Oncor had to install over 260 new revenue-accurate meters and add communications links to make the data available to ERCOT daily, with no additional onus on staff. Further, some power plants required high-accuracy, wide dynamic current metering, ranging from 5 kW to 500 MW. At time of installation, Power Measurement...
LUSAS Civil & Structural analysis software from FEA Ltd has been used by consulting engineers Oscar Faber to predict induced loadings and subsequent deflections on the wall and foundations of a 120000 tone capacity post tensioned clinker store for Rugby Cement. The store is part of a design and construct...
A Fortune 500 company that runs a major chemical processing operation in Texas identified a problem area in its utility billing. Like many large refineries, they sell off different processes to other companies and accurate bill for power they use is quite a challenge. To remove billing guesswork, Power Measurement...
There is no end in sight of the need for gas flow measurement since gases are an increasingly important part of our lives, and the price of many gases, such as natural gas, continues to rise. This article looks at some of the main applications for gas flow-meters, including the...
Turbine flowmeters have been around for many years. In fact, the generally accepted view places the invention of the first turbine meter in 1790. However, it wasn't until World War II and afterwards that turbine meters began being used in industrial environments. And even though turbine meters are facing competition...
This paper discusses and provides information about the Vortex Flowmeters and its utilities. Vortex flowmeters are in the class of new technology flowmeters, which also includes Coriolis, magnetic, ultrasonic and multivariable differential pressure DP flowmeters. They do have some disadvantages compared to these other meters. Vortex flowmeters are one of...
The dramatic new Albion Riverside development, between the Albert Bridge and the Battersea Bridge, has been described as one of the most desirable places to live in London. The challenging geometrics of the 3,000 sqm roof meant that the material specified not only needed to accommodate a varying radii but...
Ultrasonic flowmeter sales are expected to grow at an average rate of 15.3 percent per year through 2005, according to a study published by Flow Research and Ducker Worldwide. Reasons for the technology's growing use include the publication by the American Gas Association of a set of guidelines concerning use...
DTE Energy addressed the needs of industrial heavyweight users by power quality, price, and multi-year contracts based on discounted, interruptible rates. Power Measurement meters and software collect and transmit real-time load and power quality data from customer sites, and generate reports that characterize disturbances and indicate DTE's performance. Power Measurement...
The ultrasonic flowmeter market will experience strong growth over the next several years. Revenues from ultrasonic flowmeters are projected to increase at an average annual rate of 15.3 percent over the next five years, making ultrasonic the fastest-growing flowmeter. This includes Transit-Time, Doppler and hybrid ultrasonic meters. All of this...
The first impression of the museum is of a delicately arched space whose structure admits a flood of natural light. With a series of 21 arched saddle roofs running in parallel, Calatrava cleverly reduces this immense roof area to pleasing proportions. A total of 21 concrete spans embrace each section...
This paper presents a new freeway ramp control objective - minimizing total weighted travel time. This new objective function is capable of balancing efficiency and equity of ramp meters, while the previous metering objective - minimizing total absolute travel time is purely efficiency-oriented and hence produces a most efficient but...
Ramp meters in the Twin Cities were turned off for 8 weeks in the Fall of 2000. Previous research has assumed demand to be fixed when analyzing ITS technologies, however analysis of this ramp metering shut down experiment, using traffic count data from freeway loop detectors, suggests otherwise: for discretionary...
