Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Endothermic Reactions"”.
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Engineering Approximations for Chemical Kinetics
… had been developed to model electron transfer reactions, many researchers have applied it to atom transfer reactions. The model works well until very exothermic or endothermic reactions are encountered. However, including a Pauli repulsion term in the derivation of the Marcus equation leads to …
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Evaluation of Various Energy Storage Options for the Internal Thermal Loads of a Non-Airbreathing Hypersonic Vehicle
… Additionally, the use of energy-consuming endothermic reactions is considered. An innovative PCM-endothermic reaction hybrid approach is also developed. Both thermodynamic and transient/quasi-stationary models are developed for each of these proposed heat sink technologies. Prototypes are …
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Experimental investigation of CO2 valorization by plasma discharges
… to use renewable electricity to drive chemical reactions whose products are fuels, the so-called E-fuels, or other chemicals useful as feedstocks for industry. This is the concept of Power-to-X. Non-thermal plasmas generated by electrical discharges in gases are among the promising techniques …
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Integrated heat pump options for heat upgrading in Cu-Cl cycle for hydrogen production
… for hydrogen. The Cu-Cl cycle has a number of endothermic reactions that take place at high temperature level. One of the highest temperature demanding components in the Cu-Cl cycle is the copper oxychloride decomposition reactor. This thesis proposes two potential methods to address this …
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Computer modelling and analysis of particulate laden gas flows
… with the prediction of the fluid-flow, chemical reactions and heat transfer processes in an industrial off-gas ducting system. A mathematical model is developed and then applied to predict the processes occurring in the off-gas ducting system. Particular attention is focussed on the two-phase …
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Hypersonic nonequilibrium flow over an ablating teflon surface
… cases. The temperature drops were chiefly due to endothermic reactions (dissociation) of the teflon ablation species. Due to large blowing of teflon, the average molecular weight increased substantially and resulted in a reduction of the specific heat ratio γ and an increase in the Prandtl number …
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Mathematical Modeling of Ultra-Superheated Steam Gasification
… but with the challenge of supplying heat for endothermic reactions. Traditional solutions included either combusting feedstocks at the price of decreasing carbon conversion ratio, or using costly heating apparatus. Therefore, a distributed gasifier with an Ultra-Superheated-Steam (USS) …
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Experimental Evaluation of Innovative Thermal Energy Storage Options for a Hypersonic Non-Airbreathing Vehicle's Internal Loads
… PCMs are tested and for the second a single endothermic chemical reaction. The hybrid PCM/TTC concept consists of a single PCM which plays the dual role of PCM and reactant in the endothermic chemical reaction of the TTC energy storage. To enhance heat sink performance, the use of …