The 1990 Symposium on Solar High-Temperature Technologies — a survey

Kesselring, Paul

doi:10.1016/0165-1633(91)90045-m

Cited by 2 publications

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“…The theoretical maximum efficiency for solar thermochemical energy conversion increases dramatically with solar concentration and was thermodynamically estimated to be 70% at 1000 sun . It offers good opportunities for converting solar energy into chemical energy.…”

Section: Introductionmentioning

confidence: 99%

Kinetics and Simulation on a High-Temperature Solar Thermochemical Energy Conversion Process on the Boudouard Reaction

et al. 1999

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The kinetic aspect of a highly endothermic reaction system for solar thermochemical energy conversion was studied using a Xe lamp. The Xe light beam with an energy intensity of 34 W/cm 2 was irradiated onto carbon in a flow of CO 2 . The maximum rate of CO evolution was attained at 1700 s of irradiation, and the solar/chemical energy conversion efficiency was ca. 5%. A novel solar thermochemical energy conversion model based on an energy distributing process was proposed to evaluate the chemical energy conversion efficiency. In the model proposed, the chemical energy conversion efficiency, a k , and efficiency of energy absorption, , were defined. a k varies with the proceeding reaction, since the reaction conditions at each point of the reactor changed with consumption of active carbon by the Boudouard reaction. In the Boudouard reaction, the maximum chemical energy conversion efficiency was estimated to be 16%.

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Section: Introductionmentioning

confidence: 99%

Kinetics and Simulation on a High-Temperature Solar Thermochemical Energy Conversion Process on the Boudouard Reaction

et al. 1999

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Ceramic Foam Catalyst Supports Preparation and Properties

Richardson

Twigg

1994

MRS Proc.

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Successful catalyst supports must fulfill different requirements simultaneously [1]. By serving as a base for catalytic components, they provide good activity and selectivity, but certain physical properties are equally important. For example, small catalyst particles are desirable in order to avoid external heat and mass transfer limitations and to provide high effectiveness for the active component dispersed throughout the particle. However, small particles pack with low bed porosities and unacceptable pressure drop results. Open-pore ceramic foams show promising properties that could overcome these difficulties. They have good high temperature resistance, low bulk density and tortuous flow patterns, together with open porosity as high as 85% formed from megapores 0.04 to 1.5 mm in diameter [2]. Characteristic parameters include cell size, window size and surface area, all correlated with the number of pores per inch [PPI]. Ceramic foams were first used as molten metal filters [3,4] and catalytic combustion devices [5–7]. Catalytic applications are beginning to appear and these have been reviewed by Twigg and Richardson [8].

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The 1990 Symposium on Solar High-Temperature Technologies — a survey

Cited by 2 publications

References 0 publications

Kinetics and Simulation on a High-Temperature Solar Thermochemical Energy Conversion Process on the Boudouard Reaction

Kinetics and Simulation on a High-Temperature Solar Thermochemical Energy Conversion Process on the Boudouard Reaction

Ceramic Foam Catalyst Supports Preparation and Properties

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