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Preliminary Study on the Application of Concentrated Solar Power in Metallurgy of Titanium. CHEMENGINEERING 2019. [DOI: 10.3390/chemengineering3040084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The applicability of concentrated solar power for metallurgy of titanium is discussed based on preliminary experimental works performed at Plataforma Solar de Almeria Spain, using solar furnace SF40 under protective argon atmosphere. As a starting material, titanium powder was used. The possibility of melting titanium compacts on yttria stabilized zirconia mat was investigated, and the effect of density and size of different green compacts was studied. It was observed that the time to achieve melting point is very short when concentrated solar power is used. The obtained results are expected to be similar for titanium sponge from which titanium powder is processed. After optimization of processing parameters, this will probably lead to a significant decrease of carbon footprint in the titanium ingots and castings production.
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Gangurde LS, Sturm GSJ, Devadiga TJ, Stankiewicz AI, Stefanidis GD. Complexity and Challenges in Noncontact High Temperature Measurements in Microwave-Assisted Catalytic Reactors. Ind Eng Chem Res 2017; 56:13379-13391. [PMID: 29170599 PMCID: PMC5695896 DOI: 10.1021/acs.iecr.7b02091] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 09/06/2017] [Accepted: 09/07/2017] [Indexed: 11/28/2022]
Abstract
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The
complexity and challenges in noncontact temperature measurements
inside microwave-heated catalytic reactors are presented in this paper.
A custom-designed microwave cavity has been used to focus the microwave
field on the catalyst and enable monitoring of the temperature field
in 2D. A methodology to study the temperature distribution in the
catalytic bed by using a thermal camera in combination with a thermocouple
for a heterogeneous catalytic reaction (methane dry reforming) under
microwave heating has been demonstrated. The effects of various variables
that affect the accuracy of temperature recordings are discussed in
detail. The necessity of having at least one contact sensor, such
as a thermocouple, or some other microwave transparent sensor, is
recommended to keep track of the temperature changes occurring in
the catalytic bed during the reaction under microwave heating.
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Affiliation(s)
- Lalit S Gangurde
- Delft University of Technology, Process and Energy Department, Intensified Reaction and Separation Systems, Leeghwaterstraat 39, 2628 CB, Delft, The Netherlands
| | - Guido S J Sturm
- Delft University of Technology, Process and Energy Department, Intensified Reaction and Separation Systems, Leeghwaterstraat 39, 2628 CB, Delft, The Netherlands
| | - Tushar J Devadiga
- Delft University of Technology, Process and Energy Department, Intensified Reaction and Separation Systems, Leeghwaterstraat 39, 2628 CB, Delft, The Netherlands
| | - Andrzej I Stankiewicz
- Delft University of Technology, Process and Energy Department, Intensified Reaction and Separation Systems, Leeghwaterstraat 39, 2628 CB, Delft, The Netherlands
| | - Georgios D Stefanidis
- Delft University of Technology, Process and Energy Department, Intensified Reaction and Separation Systems, Leeghwaterstraat 39, 2628 CB, Delft, The Netherlands.,Katholieke Universiteit Leuven, Chemical Engineering Department, Celestijnenlaan 200F, 3001 Leuven, Belgium
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