Simultaneous measurement of the thermal and electrical conductivity of Green River oil shale

by Joel DuBow

Publisher: Dept. of Energy, Publisher: for sale by the National Technical Information Service in [Washington], Springfield, Va

Written in English
Published: Downloads: 381
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Subjects:

  • Oil-shales -- Colorado,
  • Electric conductivity -- Measurement,
  • Heat -- Conduction -- Measurement

Edition Notes

Statementsubmitted by the Oil Shale Research Group, Joel DuBow
SeriesTID ; 29381
ContributionsColorado State University. Oil Shale Research Group, United States. Dept. of Energy, United States. Energy Research and Development Administration
The Physical Object
Paginationv. :
ID Numbers
Open LibraryOL14884382M

Conductivity is a measure of the ability of water to pass an electrical current. Because dissolved salts and other inorganic chemicals conduct electrical current, conductivity increases as salinity increases. Organic compounds like oil do not conduct electrical current very well and therefore have a low conductivity when in water. Water conductivity measures the water's ability to carry an electric current, and is related to the total dissolved salts or ions in the water. In the Grand River and its tributaries, chloride is generally the ion that influences conductivity the most. What can influence conductivity.   (). Thermal conductivity and permeability assessment by electrical resistivity measurements in marine sediments. Marine Geotechnology: Vol. 6, No. 2, pp. In Situ Thermal Processing of an Oil Shale Formation to Produce a Desired Product. US Patent Grant No. US B2. White, M., Chick, L., and McVay, G. Impact of Geothermic Well Temperatures and Residence Time on the In Situ Production of Hydrocarbon Gases From Green River Formation Oil Shale.

  Conductivity or specific conductance is the measure of the water's ability to conduct an electric current. Conductivity depends upon the number of ions or charged particles in the water. The ease or difficulty of the flow of electrical current through liquids makes it possible to divide them into two broad categories: electrolytes and. Thermal Analysis: methods, principles, applicaon Andrey Tarasov Lecture on Thermal analysis Andrey Tarasov, Thermal analysis, Lecture series heterogeneous catalysis, FHI . Thermal Conductivity Heat transfer by conduction involves transfer of energy within a material without any motion of the material as a whole. The rate of heat transfer depends upon the temperature gradient and the thermal conductivity of the material. Thermal conductivity is a reasonably straightforward concept when you are discussing heat loss through the walls of your house, and you can find. The reciprocal of the electrical resistivity of our sample is defined as the electrical conductivity. In the MKS system the unit of con- ductivity is the mho per meter and a resistivity of one ohm-meter exhibits a conductivity of one mho per meter. ohm-meters is equivalent to a conductivity of .

ADIPEC (3) AI & Machine Learning (22) Arctic & Extreme-Cold Environments (93) Artificial Lift () Asset & Portfolio Management (3) Automation (44) Bottomhole Assemblies () Brands (1) Capital Efficiency (26) Capital-Efficient Subsea Solutions (21) Carbon Capture & Storage (3) Carbonates () Cementing () Coiled Tubing Intervention ( Sponsored by the Vienna University of Technology and the Engineering Mechanics Institute of ASCE. This collection contains papers presented at the Fifth Biot Conference on Poromechanics, held in Vienna, Austria, July , that reflect the advances in poromechanics since the . Thermal Conductivity Measurement The thermal conductivity of the soil samples was measured using a transient thermal probe utilising temperature measurement around a line source. The probe is manufactured by Hukseflux (TP01) and is capable of measuring thermal conductivity over a range of to 4 W/m-oK. Measurements of thermal conductivity. The limitation of this device is that it measures thermal conductivity only. Applicable standards are: IEEE Guide for Soil Thermal Resistivity Measurements (IEEE Standard ) as well as with ASTM D Standard Test Method for Determination of Thermal Conductivity of Soil and Soft Rock by Thermal Needle Probe Procedure.

Simultaneous measurement of the thermal and electrical conductivity of Green River oil shale by Joel DuBow Download PDF EPUB FB2

Simultaneous measurement of the thermal and electrical conductivity of Green River oil shale. [Washington]: Dept. of Energy ; Springfield, Va.: For sale by. where k is the thermal conductivity in W/mK, T is the absolute temperature in K, is the electrical conductivity in -1 m-1, and L is the Lorenz number, equal to W /K 2.

Clearly there is a world of difference between the measurement of electrical conductivity and that of thermal conductivity. R.P. Tye and J.R. Hurley, “The Measurement of Thermal Conductivity with Particular Reference to Temperature Measurement,” Proc.

Fifth Temperature Measurement Society, Cited by: 4. with the steam running into the steam chamber. As before, measure and record m w, the mass of the melted ice, and t, the time during which the ice melted ( minutes).

Remeasure the diameter of the ice block and record the value as d 2. Figure 1: Thermal Conductivity experiment setup DATA AND CALCULATIONS 1.

Take the average of d 1 and d 2 to. Simultaneous measurement of water retention and electrical conductivity in soils: Testing the Mualem‐Friedman Tortuosity Model. model that accounts for the influence of pore geometry is needed to obtain soil water conductivity from bulk soil electrical conductivity measurements in unsaturated soils.

Mualem and Friedman [] proposed Cited by: Thermal Conductivity Measuring Methods There are a number of possibilities to measure thermal conductivity, each of them suitable for limited range of materials, depending on the thermal properties and the medium general there are two basic techniques of measurement.

The thermal conductivity was calculated for the cylindrical bar to be ± W/m.K. While the conductivity of pure copper is given in the literature as W/m.K at a 25C.[3] The given thermal conductivity is near to the calculated one but still not in the uncertainty region mainly because the.

Extensive use was made of this apparatus to study the thermal properties of KC [33], Green River oil shales [35,36] and oil sands [37]. The weak dependence of e' and e" on shale organic content at frequencies in the range of 50 Hz to 1 MHz effectively rules out the application of dielectric techniques as an assay tool [35].

Measurement and significance of electrical conductivity in small mountain streams INTRODUCTION The electrical conductivity of stream water is an index of the amount of total dissolved solids.

It is often used as a parameter of the chemical composition of stream and river waters (Durum, Hendricksen and Krieger, Kunkle, ). The temperature-dependent electrical, mechanical, and thermal behavior of Green River oil shales of varying oil yields in the range ∼20– 1 ton −1 h.

The temperature-dependent electrical, mechanical, and thermal behavior of Green River oil shales of varying oil yields in the range ∼20– 1 ton −1 have been studied by a variety of.

A thermal comparator method has been developed for the measurement of the thermal conductivity of oil shales from the Green River formation. Oil shales from two locations in the above formation. Valvano, JW and B Chitsabesan. Thermal conductivity and diffusivity of arterial wall and atherosclerotic plaque.

Lasers Life Sci., 1,3. Valvano, JW, JT Allen and HF Bowman. The simultaneous measurement of thermal conductivity, thermal diffusivity, and perfusion in small volumes of tissue. ASME WA/HT, 4. thermal conductivity and thermal capacity. Soil thermal conductivity measurements describe the soil properties which govern the flow of heat through the soil.

The thermal conductivity is defined as the quantity of heat that flows through a unit area in a unit time under a unit temperature gradient. First of all, the electrical conductivity of insulating oil is a material parameter and differs with oil type and manufacturer.

These differences can reach easily one or even several orders of magnitude. Furthermore, the electrical conductivity is strongly dependent on temperature and on electrical field strength.

Thermal Conductivity: – Electronlytic Iron (Rod Form – SRM ) Thermal Conductivity & Electrical Resistivity: 2 – Inconel (NPL 2I09) Thermal Conductivity: – Stainless Steel (NPL 2S09) Thermal Conductivity: – Glass Ceramics (Pyroceram – BCR )* * 3.

Conductivity is a measure of water’s capability to pass electrical flow. This ability is directly related to the concentration of ions in the water 1. These conductive ions come from dissolved salts and inorganic materials such as alkalis, chlorides, sulfides and carbonate compounds 3.

This method shares similarities with the ASTM D standard, such as the measurement of the thermal resistance at different material thickness levels. The system is designed to measure high thermal conductivity thermal interface materials. Its applicability for the measurement. Conductivity measurements cover a wide range of solution conductivity from pure water at less than 1x S/cm to values of greater than 1 S/cm for concentrated solutions.

In general, the measurement of conductivity is a rapid and inexpensive way of determining the ionic strength of a solution. However, it.

Micro thermal conductivity sensor system calibration using thermal standard materials. The presented thermal conductivity sensor is a miniaturized self-heated thermistor, which utilizes the standard THW measurement approach to determine the sample’s thermal conductivity based on the transient temperature response of the heating element 6,25,29,In order to achieve the claimed high.

Conductivity is a measure of how well a solution conducts electricity. To carry a current a solution must contain charged particles, or ions. Most conductivity measurements are made in aqueous solutions, and the ions responsible for the conductivity come from electrolytes dissolved in. low conductivity.

Based on this measurement, when S=20, addition of 10% water phase into the octane-surfactant-mixture was the optimum, at this point the water content is the highest and still maintains the water droplets in the oil phase. The surface tension measurement and conductivity measurement results are shown in Fig.

@article{osti_, title = {Local measurement of thermal conductivity and diffusivity}, author = {Hurley, David H. and Schley, Robert S. and Khafizov, Marat and Wendt, Brycen L.}, abstractNote = {Simultaneous measurement of local thermal diffusivity and conductivity is demonstrated on a range of ceramic samples.

This was accomplished by measuring the temperature field spatial profile of. There are few publications reporting thermal conductivities of oil shale from the Green River formation.

Gavin and Sharp reported three values for the thermal conductivity of an oil-shale. influence of convection on thermal conductivity meas-urements. In order to avoid convection, the sample must be heated from the top.

The cylinder method with axial heat flow can be used for thermal conductivity measurements of met-als with thermal conductivities up to Wm−1 K−1 in a temperature range between about 4K and K.

A low thermal conductivity reading ( W/mK) was achieved with a 0% moisture content, while the soil sample at % saturation, displayed a higher thermal conductivity ( W/mK). These results were also well within the stated reproducibility of the TLS material characterisation and measurement of soil thermal conductivity, or its inverse value thermal resistivity.

Hukseflux sells a range of measuring systems which include “thermal needles”. All systems comply with ASTM D, D and IEEE standards. Thermal needles are.

The more oil that flows through a circulation pipe and the lower the oil’s conductivity, the greater the potential for an electrostatic charge. Oil can be especially electrostatically charged if: It is formulated with a base oil from Group II or III. It contains no polarizing (zinc-containing) additives.

The conductivity of the new or old oil. same order of magnitude for all oil. But electrical conductivity changes from S/m to S/m and is difficult to measure precisely, especially for the high insulating oil with electrical conductivity below S/m.

Electrical conductivity is a physical quantity to characterize the ability of transferring current. Different materials (such as glass, steel, copper, and bubble gum) conduct heat at different rates, so the thermal conductivity constant depends on the material in question.

Lucky for you, physicists have measured the constants for various materials already. This table shows some of these values. Here’s an example of how conductivity affects heat transfer. The [ ]. Measurement of Thermal Conductivity of Gases in an Undergraduate Physics Laboratory.

Ottonello, P.; Valbusa, U. American Journal of Physics, v48 n6 p Jun Describes an experiment to measure the thermal conductivity of some gases in an undergraduate physics laboratory using a hot wire method in the pressure range ten to one torr.

(HM).explored; however, the electrical and thermal properties still require further study. The main objective of this thesis was to measure and understand the thermal behavior of SWNT-reinforced composites. This thesis focuses on 1) the thermal conductivity of buckypapers (aligned or random SWNT network from filtration of well-dispersed.Thermal conductivity for Grade 68 oil.

The figure 3 shows the thermal conductivity of water at calcu-lated thermal conductivity value to the standard thermal con-ductivity value at different temperatures. The maximum devi-ation from the calculated thermal conductivity of water to the standard thermal conductivity of water is about an 12%.