Universitat Politècnica de Catalunya
Mostrando ítems 1-20 de 129
In the chemical process industry, the decision-making hierarchy is inherently model-based. The scale and complexity of the considered models (e.g., enterprise, plant or unit model) depend on the decision-making level (e.g., ...
Towards sustainability forces process industries to change their traditional patterns. Therefore, efficient retrofitting has been a significant challenge and raised several issues, motivating the process system engineering ...
El alto grado de automatización adquirido en las plantas químicas durante las últimas décadas hace que las tareas de supervisión sean ahora más complejas y delicadas. Esta supervisión requiere de sistemas y herramientas ...
The objective of this thesis is contributing to the development of a systematic modelling approach for a more efficient and sustainable water management. The main aim is introducing Chemical and Process System Engineering ...
Hydrogen is an energy vector; it is not a direct energy source. It is an energy carrier. Hydrogen can be used to feed fuel cells (an electrochemical device), thus increasing the efficency of energy transfer as the amount ...
Plant safety is the most important concern of chemical industries. Process faults can cause economic loses as well as human and environmental damages. Most of the operational faults are normally considered in the process ...
At the present time, the environmental challenges are the second concern on a global level, and the first one in some countries. This is one of the main reasons behind the recent boost of new methods of production within ...
Phenolic compounds, ubiquitous in plants, are of considerable interest and are increasingly becoming a subject of intensive research due to their bioactive properties such as antioxidant, antimicrobial, anti-mutagenic, ...
In Colombia, strategies are being promoted to increase fruit and vegetable production, in order to take advantage of agricultural potential. However, there are also high food losses, low consumption and low transformation. ...
Vegetables and fruits are foods that have large number of compounds beneficial to health, as well as being essential in the diet. Its components include the phenolic substances. These compounds have a great antiradical ...
L'adob de pells ovines és un procés llarg i complex, en el que s'utilitza l'aigua com a vehicle per treure les parts no desitjables de la pell i introduir-hi productes químics per transformar-la. El resultat és la generació ...
Durante estas últimas décadas ha habido un gran interés científico y tecnológico en el desarrollo de nuevos sistemas para la obtención e hilatura de fibras de celulosa regenerada. Las tecnologías aplicadas en este campo ...
Packed bed reactors are widely used in various chemical processes. Fundamental understanding of the heat and mass transfer phenomena in the packed beds is essential for better modelling of these processes. Theoretical ...
The present work has focused on the study of two edible plants, with attributable medicinal values, named Anthyllis vulneraria L. (A.vulneraria) and Azadirachta indica L. (A.indica) collected in Tunisia and India, ...
Lab-on-a-chip arrangements are ever more frequently used for the miniaturization of chemical and biochemical analysis. In these arrangements, all the manipulations of analyte transport, separation, mixing with reactants ...
Due to the nuclear testing, reentry and disintegration of nuclear powered satellites, nuclear reactor accidents, uranium nuclear fuel cycle and nuclear weapons production, actinides have been introduced into the environment. ...
Els residus radioactius procedeixen de gairebé totes les activitats (indústria nuclear i no nuclear, investigació, activitats militars, aplicacions mèdiques) que impliquen la manipulació de materials radioactius. Existeix ...
El entendimiento de los fenómenos de transferencia de calor y de masa en medios porosos implica el estudio de modelos de transporte de fluidos en la fracción vacía del medio; este hecho es de fundamental importancia en ...
El sector energético se está dirigiendo hacia un nuevo paradigma, favoreciendo la aparición de procesos de conversión más eficientes, el uso de las fuentes de energía renovables y la micro-generación. La bioenergía es una ...
This Thesis addresses the systematic construction of Decision Making Models (DMMs) from the conceptualization stage to its application in specific situations, with special emphasis on !he treatment of scenarios where there ...
