2 resultados para other numerical approaches

em Instituto Politécnico de Bragança


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Global concentration of CO2 in the atmosphere is increasing rapidly. CO2 emissions have huge impact on global climate change. Therefore, efficient CO2 emission abatement strategies such as Carbon Capture and Storage (CCS) are required to combat this phenomenon. There are three major approaches for CCS: - Post-combustion capture; - Pre-combustion capture; - Oxyfuel process. Post-combustion capture offers some advantages in terms of cost as existing combustion technologies can still be used without radical changes on them. This makes post-combustion capture easier to implement as a retrofit option compared to the other two approaches. Therefore, post-combustion capture is probably the first technology that will be deployed on a large scale. The aim of this work is to study the adsorption equilibrium of CO2, CH4 and N2 in zeolite 5A at 40ºC. For this, experiments were performed to determine the isotherms of adsorption of CO2, CH4 and N2 near 40ºC with the conditions of the post-combustion capture processes. It has been found that the 5A zeolite adsorbs a significant quantity of CO2 values of about 5 mol/kg at a pressure of 5 bar.

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The present work intends to study Rural Tourism. More specifically: regional policy of Rural Tourism development. Purpose of this research is creation of innovative qualitative model of regional policy of Rural Tourism development for Ukraine. With this aim literature review was made, developed a research methodology and analysis made. It was established a way of creation of qualitative model, based on studied information and scientific papers. Research methodology was described in next part. Decided to do it in three stages: (1) justification of analytical research; (2) data sample collection and analysis; (3) creating of innovative model of regional policy of Rural Tourism development. Each of these stages have sub stages supported by results of previous. In accordance to methodology, analytical part was made in two steps: (1) analysis of statistical information about rural houses availability; (2) analysis of resources needed for successfully Rural Tourism activity. This part gave information about placement of rural houses by geographical regions and defined most attractive geographical regions for Rural Tourism development. The results showed that the highest rural houses availability is in Western geographical region. Other regions have low level of rural houses availability. However, analysis of resources needed for successful Rural Tourism development showed, that all geographical regions are attractive for organizing Rural Tourism activity. Based on this information an innovative qualitative model of Rural Tourism development was created.