Heat flow and thermal conductivity measurements in the northeastern Pennsylvania Appalachian Basin depocenter

AAPG Bulletin ◽  
2018 ◽  
Vol 102 (11) ◽  
pp. 2155-2170 ◽  
Author(s):  
Chelsea Rauch ◽  
Kyle Barrie ◽  
Steven C. Collins ◽  
Matthew J. Hornbach ◽  
Casey Brokaw
Keyword(s):  
Thermal Conductivity ◽  
Heat Flow ◽  
Appalachian Basin ◽  
Conductivity Measurements ◽  
Northeastern Pennsylvania

scholarly journals Thermal conductivity of frozen soils

1970 ◽  
Vol 7 (3) ◽  
pp. 982-987 ◽  
Author(s):  
E. Penner
Keyword(s):  
Thermal Conductivity ◽  
Heat Flow ◽  
Silty Clay ◽  
Conductivity Measurements ◽  
Thermal Probe ◽  
Frozen Soils ◽  
Transient Heat Flow ◽  
Leda Clay ◽  
Ice Content

Thermal conductivity measurements of two frozen soils, Leda clay and Sudbury silty clay, taken at temperatures between 0 and −22 °C by means of a thermal probe and a transient heat flow technique, compare favorably with estimates of thermal conductivity calculated by the DeVries method. Both measured and estimated values show a similar trend of increasing thermal conductivity as the temperature is lowered and the ice content grows. This increase is associated with the higher thermal conductivity of ice compared with that of water.

scholarly journals Thermal Conductivity of Detonation Nanodiamond Hydrogels and Hydrosols by Direct Heat Flux Measurements

Gels ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. 248
Author(s):  
Liliya O. Usoltseva ◽  
Dmitry S. Volkov ◽  
Evgeny A. Karpushkin ◽  
Mikhail V. Korobov ◽  
Mikhail A. Proskurnin
Keyword(s):  
Thermal Conductivity ◽  
Heat Flux ◽  
Standard Deviation ◽  
Heat Flow ◽  
Detonation Nanodiamond ◽  
Conductivity Measurements ◽  
Maximum Increase ◽  
Relative Standard ◽  
Flux Measurements ◽  
Heat Flow Meter

The methodology and results of thermal conductivity measurements by the heat-flow technique for the detonation nanodiamond suspension gels, sols, and powders of several brands in the range of nanoparticle concentrations of 2–100% w/w are discussed. The conditions of assessing the thermal conductivity of the fluids and gels (a FOX 50 heat-flow meter) with the reproducibility (relative standard deviation) of 1% are proposed. The maximum increase of 13% was recorded for the nanodiamond gels (140 mg mL−1 or 4% v/v) of the RDDM brand, at 0.687 ± 0.005 W m−1 K−1. The thermal conductivity of the nanodiamond powders is estimated as 0.26 ± 0.03 and 0.35 ± 0.04 W m−1 K−1 for the RUDDM and RDDM brands, respectively. The thermal conductivity for the aqueous pastes containing 26% v/v RUDDM is 0.85 ± 0.04 W m−1 K−1. The dignities, shortcomings, and limitations of this approach are discussed and compared with the determining of the thermal conductivity with photothermal-lens spectrometry.

AN INSTRUMENT FOR MEASURING HEAT FLOW, TEMPERATURE, AND THERMAL CONDUCTIVITY IN THE LUNAR SURFACE LAYER

1970 ◽  
Author(s):  
A. E. Wechsler ◽  
E. M. Drake ◽  
F. E. Ruccia ◽  
J. E. McCullough ◽  
P. Felsenthal ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Surface Layer ◽  
Heat Flow ◽  
Lunar Surface ◽  
Flow Temperature
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