portable calibration densimeter for use in cryogenic liquids by J. D Siegwarth

Cover of: portable calibration densimeter for use in cryogenic liquids | J. D Siegwarth

Published by U.S. Dept. of Commerce, National Bureau of Standards, For sale by the Supt. of Docs., U.S. G.P.O. in Washington, D.C .

Written in English

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  • Liquefied natural gas -- Density -- Measurement

Edition Notes

Book details

StatementJ.D. Siegwarth, J.F. LaBrecque
SeriesNBS technical note -- 1035
ContributionsLaBrecque, J. F, United States. National Bureau of Standards, United States. National Engineering Laboratory. Thermophysical Properties Division
The Physical Object
Paginationiii, 13 p. :
Number of Pages13
ID Numbers
Open LibraryOL14847366M

Download portable calibration densimeter for use in cryogenic liquids

Get this from a library. A portable calibration densimeter for use in cryogenic liquids. [J D Siegwarth; J F LaBrecque; United States. National Bureau of Standards.; Center for Continuous Process Technology (U.S.).

Thermophysical Properties Division.]. A portable calibration densimeter for use in cryogenic liquids Technical Report Siegwarth, J.D. ; LaBrecque, J.F. A portable densimeter designed specifically for calibrating liquefied natural gas densimeters but suitable for density measurement of a wide range of liquids, is described.

A portable calibration densimeter for use in cryogenic liquids / By J. Siegwarth, J. LaBrecque, Center for Continuous Process Technology (U.S.). Thermophysical Properties.

Slush nitrogen, a cryogenic fluid with solid particles suspended in liquid, is considered a potential coolant for high temperature superconductors. Program Mode for custom calibration • The DT is a robust, easy to use, portable densitometer for measuring the transmission density of X-ray film.

The unit has been designed for using in one-site mobile darkrooms, laboratories and offices. • The DT, with a extremely wide light range of between CD/m2 and CD/m2, has a Brand: M&A INSTRUMENTS INC. A special densimeter has been developed for accurate density measurements of liquid mixtures at cryogenic temperatures, e.g., liquefied natural gas (LNG).It covers the density range from (10 to ) kg m −3, thus enabling density measurements in the supercritical region, in the homogeneous liquid region, along the saturated liquid line as well as in the homogeneous gas region.

Within the scope of the presentation we will describe a new densimeter specifically designed for measurements of liquid mixtures at cryogenic temperatures. This apparatus allows to measure densities of LNG in the homogeneous liquid phase, along the saturated-liquid line and at supercritical states.

Preliminary test for the temperature controller is made in a cryostat as shown in Fig. The cryostat is filled with liquid nitrogen to a designated liquid level. Two platinum resistance sensors with an accuracy of K is installed near the densimeter.

The sensors have been calibrated by cryogenic metrolog)~ station, Chinese Academy of Sciences. The Densimeter - MDS is an advanced density testing equipment with a resolution of g/cm3. which can be used for measuring solid and liquid samples.

This popular line of cost-effective and top-quality electronic densimeters has extensive use and applications in the quality control and testing laboratories, especially in the rubber and.

The capacitors with double-circular curved-plate electrodes are adopted in the flowmeter to improve its sensitivity.

According to the calibration results, the densimeter and the liquid level meter have high sensitivity and good linearity, with the improved accuracy of ±% and ±%, respectively.

A simple calibration procedure using about 30÷40cm3 of cryogenic liquid (as hydrogen, neon, nitrogen, argon and oxygen) is described. The liquefaction of about 80 litres of gas is carried out in a conventional helium or nitrogen crycstat, in which a variable thermal contact between the measuring chamber and the cryogenic bath is provided for.

Conditions of a successful calibration as well as. 1. Introduction. Slush hydrogen is a two-phase solid–liquid cryogenic fluid consisting of solid hydrogen particles in liquid hydrogen. Compared to liquid hydrogen at normal boiling point (density: kg/m 3), the density of slush hydrogen at triple point is about 16% greater at a solid mass ratio (solid fraction) of 50% (density: kg/m 3), and the cryogenic heat capacity is about 18%.

These calibration baths are designed with the stability and accuracy of a fluid bath and the compact size and weight of a portable calibrator. Smaller and lighter than most dry-well calibrators, these calibration baths are easy to carry and are spill-proof.

The heating, cooling, and stabilization times allow you to take readings within 45 minutes. (a) Atmospheric gases and helium, cryogenic liquids, in Dewar flasks, insulated cylinders, insulated portable tanks, insulated cargo tanks, and insulated tank cars, designed and constructed so that the pressure in such packagings will not exceed psig under ambient temperature conditions.

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Kleinrahm's 59 research works with 1, citations and 3, reads, including: Uncertainty analysis of adsorption measurements using commercial gravimetric sorption analyzers with simultaneous. Relatively easy to use and applicable to a wide variety of liquids, the saturated liquid density correlation (COSTALD) is flexible and consistent, requiring only reduced temperature, acentric factor, and a characteristic volume for each pure compound.

Mixing rules are given. Orifice plate flow meters are differential pressure sensors for flow rate. Can be used with gases, liquids, corrosive, and high temperature fluids. Applications include steam flow, boiler feedwater, and fluid flow rates in building water lines.

Designed for use wherever there is. Field calibration of working gas monitors involves several steps. Individuals who calibrate monitors use specific con-centrations of certified NO2 mixtures that are contained in portable pressurized cylinders.

A flow regulator on the calibration cylinder sets the flow of the certified mixture to mL/min. DataOnline's wireless telemetry system is designed to provide a low cost, reliable, and easy to use monitoring system for bulk cryogenic storage vessels.

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The U.S. Department of Transportation (DOT) defines a cryogenic liquid, sometimes referred to as a "refrigerated liquid," as any liquid with a. A cryogenic pressure sensor calibration facility has been set up at Pressure Systems, Inc.

for calibrating cryogenic pressure sensors in the temperature range – K. This paper presents a brief review of this calibration facility together with the low temperature characteristics of the cryogenic piezoresistive pressure sensors.

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Including Model Series - Gas Cylinder Cabinets,Shielding Gases. Densimeters determine the density in liquids and solids using the displacement method. They are very useful for testing the density of plastic, rubber, metals, ceramica, glass and other non-metalic materials.

The method used for determining density by this device is highly accurate and produces readings quickly. It also covers portable and mobile measures. This document is applicable to the petroleum industry; however, it may be applied more widely to other applications.

This document excludes measures for cryogenic liquids and pressurized measures as used for liquid petroleum gas (LPG) and liquefied natural gas (LNG). ISO describes the design, use and calibration of volumetric measures (capacity measures) which are intended for use in fixed locations in a laboratory or in the field.

This document gives guidance on both standard and non-standard measures. It also covers portable and mobile measures. Cryogenic storage dewars are specialized vacuum flasks that hold liquid nitrogen or liquid helium (cryogens).

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Bio-Cane Cryogenic Storage System by Thermo Fisher Scientific feature numbered and color-coded canisters for easy sample identification Color-Coded Bio-Cane Cryogenic Storage System Durable aluminum Dewars use a system of color-coded canes loaded with cryogenic vials to store up to vials in liquid nitrogen.

The facility used liquid nitrogen as a cryogen to test and calibrate flow meters and other cryogenic devices, although the calibration also applied to LNG. Mass flow calibrations were conducted from kg/s to kg/s and volume flow calibrations from 76 L/min. This new addition to the Oakton EcoTestr product line features updates to make measuring water quality easier and faster.

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Unit's memory stores up to five calibration settings, one for each range. Product Description: Qualtech Products Industry Benchtop Densimeter – Desktop Densimeter – is a precision instrument to measure the density and specific gravity of a samples.

Unlike most Density Meters which measure the density based on the weigh a sample being immersed into a liquid, this professional Density Meter determines the density of sample in a more advanced manner by. Pavese F., Malyshev V.M., Steur P.P.M., Ferri D., Giraudi D. () Routine Calibration of Cryogenic Thermometers in the Range –K with an Accuracy up to the Millikelvin Level, and Measurement of Fixed Points in Sealed Cells with a Fully Automated and Self-Contained Modular Apparatus.

In: Kittel P. (eds) Advances in Cryogenic Engineering. We have the tools for you to measure density and specific gravity. A density meter provides a way to measure the gravity of substances. A hydrometers offer a simple, yet accurate way to measure the relative density or specific gravity of most any substance.

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