Experimental studies of low-temperature drying by dehumidification. Part 2—Experimental

1988 ◽  
Vol 12 (2) ◽  
pp. 315-344 ◽  
Author(s):  
R. Toal ◽  
R. Morgan ◽  
J. T. McMullan
Keyword(s):  
Low Temperature ◽  
Experimental Studies ◽  
Low Temperature Drying

scholarly journals Heat pump technologies of low temperature drying of capillary-porous materials spherical shape

2020 ◽  
pp. 7-12
Author(s):  
Yu.F. Snezhkin ◽  
V.М. Paziuk ◽  
Zh.O. Petrova
Keyword(s):  
Low Temperature ◽  
Porous Materials ◽  
Heat Pump ◽  
Experimental Studies ◽  
Average Energy ◽  
Spherical Shape ◽  
High Energy ◽  
Heat Pumps ◽  
Heat Pump Drying ◽  
Low Temperature Drying

Heat pump technologies have become widely used in space heating and air conditioning systems, and the heat pump can be used for low-temperature drying of capillary-porous materials. Recuperative and condensing heat pumps, which allow both drying and cooling of the material, have become the most widespread. The developed condensing heat pump drying unit with a mine chamber implements a low-temperature drying process of spherical capillary-porous materials at a drying agent temperature of 40-50°C with a decrease in material humidity by 11% to a final humidity of 8%. Experimental studies on a heat pump drying unit for drying capillary-porous materials of spherical shape indicated a significant reduction in average energy costs per process up to 3700 - 4100 kJ/kg of evaporated moisture. The increase in energy consumption increases significantly in the second part of the second period, where heat consumption can reach 5000 - 5350 kJ/kg of evaporated moisture. The use of condensing heat pumps for low-temperature drying of capillary-porous materials has shown high energy efficiency compared to existing drying technologies.

Experimental Studies of New GaAs Metal/Insulator/p-n+Switches Using Low Temperature Oxide

2002 ◽  
Vol 25 (3) ◽  
pp. 233-237
Author(s):  
K. F. Yarn
Keyword(s):  
Low Temperature ◽  
Negative Differential Resistance ◽  
Doping Concentration ◽  
Experimental Studies ◽  
Differential Resistance ◽  
Switching Behavior ◽  
Metal Insulator ◽  
Turn On ◽  
Temperature Oxide ◽  
Phase Chemical

First observation of switching behavior is reported in GaAs metal-insulator-p-n+structure, where the thin insulator is grown at low temperature by a liquid phase chemical-enhanced oxide (LPECO) with a thickness of 100 Å. A significant S-shaped negative differential resistance (NDR) is shown to occur that originates from the regenerative feedback in a tunnel metal/insulator/semiconductor (MIS) interface andp-n+junction. The influence of epitaxial doping concentration on the switching and holding voltages is investigated. The switching voltages are found to be decreased when increasing the epitaxial doping concentration, while the holding voltages are almost kept constant. A high turn-off/turn-on resistance ratio up to105has been obtained.

Potential for Aflatoxin Development in Low Temperature Drying Systems

1979 ◽  
Vol 22 (6) ◽  
pp. 1439-1443 ◽  
Author(s):  
I. J. Ross ◽  
O. J. Loewer ◽  
G. M. White
Keyword(s):  
Low Temperature ◽  
Low Temperature Drying

Theoretical and Experimental Studies of Enflurane. Infrared Spectra in Solution, in Low-Temperature Argon Matrix and Blue Shifts Resulting from Dimerization

2007 ◽  
Vol 111 (42) ◽  
pp. 12228-12238 ◽  
Author(s):  
Danuta Michalska ◽  
Dariusz C. Bieńko ◽  
Bogusława Czarnik-Matusewicz ◽  
Maria Wierzejewska ◽  
Camille Sandorfy ◽  
...  
Keyword(s):  
Low Temperature ◽  
Infrared Spectra ◽  
Experimental Studies ◽  
Argon Matrix

Application of preliminary low-temperature heating for cold forming of complex parts on cold former

2021 ◽  
pp. 396-399
Author(s):  
V.Yu. Lavrinenko ◽  
Yu.A. Lavrinenko ◽  
R.S. Fayruzov ◽  
A.S. Ayrapetyan ◽  
A.S. Kirsanov
Keyword(s):  
Low Temperature ◽  
Heating Temperature ◽  
Experimental Studies ◽  
Life Time ◽  
Cold Forging ◽  
Flow Curves ◽  
Cold Forming ◽  
40Kh13 Steel ◽  
Temperature Heating ◽  
Complex Parts

The results of experimental studies of flow curves of 32CrB4, 20G2R and 1.4034 (analogue of 40Kh13 steel) steels at different heating temperature of workpieces are presented. Rational intervals of preliminary lowtemperature heating of workpieces made of studied steels are obtained. It allows to decrease forces during cold forging, loads on the working tool and to increase of tool life time up to 2 times.

Experimental studies of optical phenomena in laser-induced low-temperature plasma

1994 ◽  
Author(s):  
Vladimir N. Anisimov ◽  
Vladimir Y. Baranov ◽  
Oleg N. Derkach ◽  
Vladimir A. Dolgov ◽  
Mikhail F. Kanevskii ◽  
...  
Keyword(s):  
Low Temperature ◽  
Experimental Studies ◽  
Low Temperature Plasma ◽  
Temperature Plasma ◽  
Optical Phenomena

Influence of Lipid Content and Blanching on Capelin (M allotus villosus ) Drying Rate and Lipid Oxidation under Low Temperature Drying

2015 ◽  
Vol 39 (3) ◽  
pp. 237-246 ◽  
Author(s):  
Odoli Cyprian ◽  
Minh Van Nguyen ◽  
Kolbrun Sveinsdottir ◽  
Asbjorn Jonsson ◽  
Gudjon Thorkelsson ◽  
...  
Keyword(s):  
Low Temperature ◽  
Lipid Oxidation ◽  
Lipid Content ◽  
Drying Rate ◽  
Low Temperature Drying
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