High Temperature Vapor Pressures of Sodium, Potassium, and Cesium.

1966 ◽  
Vol 11 (3) ◽  
pp. 315-320 ◽  
Author(s):  
J. P. Stone ◽  
C. T. Ewing ◽  
J. R. Spann ◽  
E. W. Steinkuller ◽  
D. D. Williams ◽  
...  
Keyword(s):  
High Temperature ◽  
Vapor Pressures ◽  
Sodium Potassium ◽  
High Temperature Vapor

scholarly journals Tuning Pt-CeO2 interactions by high-temperature vapor-phase synthesis for improved reducibility of lattice oxygen

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Xavier Isidro Pereira-Hernández ◽  
Andrew DeLaRiva ◽  
Valery Muravev ◽  
Deepak Kunwar ◽  
Haifeng Xiong ◽  
...  
Keyword(s):  
High Temperature ◽  
Co Oxidation ◽  
Vapor Phase ◽  
Ambient Pressure ◽  
Lattice Oxygen ◽  
Single Atom ◽  
Stable Form ◽  
Phase Synthesis ◽  
Vapor Phase Synthesis ◽  
High Temperature Vapor

Abstract In this work, we compare the CO oxidation performance of Pt single atom catalysts (SACs) prepared via two methods: (1) conventional wet chemical synthesis (strong electrostatic adsorption–SEA) with calcination at 350 °C in air; and (2) high temperature vapor phase synthesis (atom trapping–AT) with calcination in air at 800 °C leading to ionic Pt being trapped on the CeO2 in a thermally stable form. As-synthesized, both SACs are inactive for low temperature (<150 °C) CO oxidation. After treatment in CO at 275 °C, both catalysts show enhanced reactivity. Despite similar Pt metal particle size, the AT catalyst is significantly more active, with onset of CO oxidation near room temperature. A combination of near-ambient pressure X-ray photoelectron spectroscopy (NAP-XPS) and CO temperature-programmed reduction (CO-TPR) shows that the high reactivity at low temperatures can be related to the improved reducibility of lattice oxygen on the CeO2 support.

scholarly journals Thermodynamic competitiveness of high temperature vapor compression heat pumps for boiler substitution

Energy ◽  
2019 ◽  
Vol 182 ◽  
pp. 110-121 ◽  
Author(s):  
Riccardo Bergamini ◽  
Jonas Kjær Jensen ◽  
Brian Elmegaard
Keyword(s):  
High Temperature ◽  
Heat Pumps ◽  
Vapor Compression ◽  
High Temperature Vapor

scholarly journals Calculated and experimental evaluation heat pump distiller on pentane as working substance

2020 ◽  
Vol 324 ◽  
pp. 02007
Author(s):  
Gennady A. Ilyn ◽  
Ilya I. Malafeev ◽  
Vladimir B. Sapojnikov
Keyword(s):  
High Temperature ◽  
High Efficiency ◽  
Recovery Phase ◽  
High Energy ◽  
Heat Pumps ◽  
Working Fluid ◽  
Vapor Compression ◽  
The Cost ◽  
Reliable Methods ◽  
High Temperature Vapor

One of the most common and reliable methods of water treatment is the method of thermal distillation. Despite the reliability of the method, its application is constrained by high energy intensity. The most effective way to reduce the cost of production of distillate is the use of thermal transformers, providing regenerate and heat recovery phase transformations of the distillate. The use of working fluid with the most favorable thermodynamic properties is of paramount importance for the creation of high efficiency thermotransformers. The work is considered working fluid for high-temperature heat pumps and the results of the calculation-experimental study of high-temperature vapor compression heat-pumping distiller on natural working substance n-pentan.

scholarly journals Effect of Sodium, Potassium, Magnesium, Calcium, and Chlorine on the High Temperature Corrosion of In-100, U-700, IN-792, and MAR M-509

1981 ◽  
Vol 103 (2) ◽  
pp. 294-307
Author(s):  
C. E. Lowell ◽  
S. M. Sidik ◽  
D. L. Deadmore
Keyword(s):  
High Temperature ◽  
Fractional Factorial Design ◽  
High Temperature Corrosion ◽  
Fractional Factorial ◽  
Liquid Fuels ◽  
Metal Consumption ◽  
Sodium Potassium ◽  
Accelerated Corrosion ◽  
Central Composite ◽  
Potassium Magnesium

The effects of potential impurities, such as Na, K, Mg, Ca, and Cl, in coal-derived liquid fuels on accelerated corrosion of IN-100, U-700, IN-792, and Mar M-509 were investigated using a Mach 0.3 burner rig for times to 200 hr in 1 hr cycles. These impurities were injected in combination as aqueous solutions into the combustor. Other variables were time, temperature, and fuel-to-air ratio. The experimental matrix was a central composite fractional factorial design divided into blocks to allow modification of the design as data was gathered. The extent of corrosion was determined by metal consumption, τ.

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