Protótipo de um microgerador termoelétrico de estado sólido: cogeração a gás

The thermoelectric energy conversion can be performed directly on generators without moving parts, using the principle of SEEBECK effect, obtained in junctions of drivers' thermocouples and most recently in semiconductor junctions type p-n which have increased efficiency of conversion. When termogenerators are exposed to the temperature difference (thermal gradient) eletromotriz a force is generated inducing the appearance of an electric current in the circuit. Thus, it is possible to convert the heat of combustion of a gas through a burner in power, being a thermoelectric generator. The development of infrared burners, using porous ceramic plate, is possible to improve the efficiency of heating, and reduce harmful emissions such as CO, CO2, NOx, etc.. In recent years the meliorate of thermoelectric modules semiconductor (TEG's) has stimulated the development of devices generating and recovery of thermal irreversibility of thermal machines and processes, improving energy efficiency and exergy these systems, especially processes that enable the cogeneration of energy. This work is based on the construction and evaluation of a prototype in a pilot scale, for energy generation to specific applications. The unit uses a fuel gas (LPG) as a primary energy source. The prototype consists of a porous plate burner infrared, an adapter to the module generator, a set of semiconductor modules purchased from Hi-Z Inc. and a heat exchanger to be used as cold source. The prototype was mounted on a test bench, using a system of acquisition of temperature, a system of application of load and instrumentation to assess its functioning and performance. The prototype had an efficiency of chemical conversion of 0.31% for electrical and heat recovery for cogeneration of about 33.2%, resulting in an overall efficiency of 33.51%. The efficiency of energy exergy next shows that the use of primary energy to useful fuel was satisfactory, although the proposed mechanism has also has a low performance due to underuse of the area heated by the small number of modules, as well as a thermal gradient below the ideal informed by the manufacturer, and other factors. The test methodology adopted proved to be suitable for evaluating the prototype

Estudo de adsorvente obtido de terras diatomáceas para remoção de metais pesados em águas produzidas: processamento, caracterização e dinâmica em leito fixo

The acceleration of industrial growth in recent decades on all continents aroused the interest of the companies to counter the impacts produced on the environment, spurred primarily by major disasters in the petroleum industry. In this context, the water produced is responsible for the largest volume of effluent from the production and extraction of oil and natural gas. This effluent has in its composition some critical components such as inorganic salts, heavy metals (Fe, Cu, Zn, Pb, Cd, ), presence of oil and chemicals added in the various production processes. In response to impact, have been triggered by research alternative adsorbent materials for water treatment and water produced, in order to removing oils and acids and heavy metals. Many surveys of diatomaceous earth (diatomite) in Brazil involve studies on the physico-chemical, mineral deposits, extraction, processing and applications. The official estimated Jazi are around 2.5 million tonnes, the main located in the states of Bahia (44%) and Rio Grande do Norte (37,4%). Moreover, these two states appear as large offshore producers, earning a prominent role in research of adsorbents such as diatomite for treatment of water produced. Its main applications are as an agent of filtration, adsorption of oils and greases, industrial load and thermal insulator. The objective of this work was the processing and characterization of diatomite diatomaceous earth obtained from the municipality of Macaíba-RN (known locally as tabatinga) as a low cost regenerative adsorbent for removal of heavy metals in the application of water produced treatment. In this work we adopted a methodology for batch processing, practiced by small businesses located in producing regions of Brazil. The characterization was made by X-ray diffraction (XRD), scanning electron microscopy (SEM) and specific surface area (BET). Research conducted showed that the improvement process used was effective for small volume production of diatomite concentrated. The diatomite obtained was treated by calcination at temperature of 900 oC for 2 hours, with and without fluxing Na2CO3 (4%), according to optimal results in the literature. Column adsorption experiments were conducted to percolation of the in nature, calcined and calcined fluxing diatomites. Effluent was used as a saline solution containing ions of Cu, Zn, Na, Ca and Mg simulating the composition of produced waters in the state of Rio Grande do Norte, Brazil. The breakthrough curves for simultaneous removal of copper ions and zinc as a result, 84.3% for calcined diatomite and diatomite with 97.3 % for fluxing. The calcined fluxing diatomite was more efficient permeability through the bed and removal of copper and zinc ions. The fresh diatomite had trouble with the permeability through the bed under the conditions tested, compared with the other obtained diatomite. The results are presented as promising for application in the petroleum industry

Pirólise termoquímica de pós da fibra de coco seco em um reator de cilindro rotativo para produção de bio-óleo

This master thesis aims at developing a new methodology for thermochemical degradation of dry coconut fiber (dp = 0.25mm) using laboratory rotating cylinder reactor with the goal of producing bio-oil. The biomass was characterized by infrared spectroscopy with Fourier transform FTIR, thermogravimetric analysis TG, with evaluation of activation energy the in non-isothermal regime with heating rates of 5 and 10 °C/min, differential themogravimetric analysis DTG, sweeping electron microscopy SEM, higher heating value - HHV, immediate analysis such as evaluated all the amounts of its main constituents, i.e., lignin, cellulose and hemicelluloses. In the process, it was evaluated: reaction temperature (450, 500 and 550oC), carrier gas flow rate (50 and 100 cm³/min) and spin speed (20 and 25 Hz) to condensate the bio-oil. The feed rate of biomass (540 g/h), the rotation of the rotating cylinder (33.7 rpm) and reaction time (30 33 min) were constant. The phases obtained from the process of pyrolysis of dry coconut fiber were bio-oil, char and the gas phase non-condensed. A macroscopic mass balance was applied based on the weight of each phase to evaluate their yield. The highest yield of 20% was obtained from the following conditions: temperature of 500oC, inert gas flow of 100 cm³/min and spin speed of 20 Hz. In that condition, the yield in char was 24.3%, non-condensable gas phase was 37.6% and losses of approximately 22.6%. The following physicochemical properties: density, viscosity, pH, higher heating value, char content, FTIR and CHN analysis were evaluated. The sample obtained in the best operational condition was subjected to a qualitative chromatographic analysis aiming to know the constituents of the produced bio-oil, which were: phenol followed by sirigol, acetovanilona and vinyl guaiacol. The solid phase (char) was characterized through an immediate analysis (evaluation of moisture, volatiles, ashes and fixed carbon), higher heating value and FTIR. The non-condensing gas phase presented as main constituents CO2, CO and H2. The results were compared to the ones mentioned by the literature.

Projeto, construção e análise de um prototipo vibracional em escala de bancada aplicável ao tratamento de água de produção de petróleo bruto, mediante inovadora operação híbrida de adsorção e auto-flotação

A self-flotator vibrational prototype electromechanical drive for treatment of oil and water emulsion or like emulsion is presented and evaluated. Oil production and refining to obtain derivatives is carried out under arrangements technically referred to as on-shore and off-shore, ie, on the continent and in the sea. In Brazil 80 % of the petroleum production is taken at sea and area of deployment and it cost scale are worrisome. It is associated, oily water production on a large scale, carrier 95% of the potential pollutant of activity whose final destination is the environment medium, terrestrial or maritime. Although diversified set of techniques and water treatment systems are in use or research, we propose an innovative system that operates in a sustainable way without chemical additives, for the good of the ecosystem. Labyrinth adsor-bent is used in metal spirals, and laboratory scale flow. Equipment and process patents are claimed. Treatments were performed at different flow rates and bands often monitored with control systems, some built, other bought for this purpose. Measurements of the levels of oil and grease (OGC) of efluents treaty remained within the range of legal framework under test conditions. Adsorbents were weighed before and after treatment for obtaining oil impregna-tion, the performance goal of vibratory action and treatment as a whole. Treatment technolo-gies in course are referenced, to compare performance, qualitatively and quantitatively. The vibration energy consumption is faced with and without conventional flotation and self-flotation. There are good prospects for the proposed, especially in reducing the residence time, by capillary action system. The impregnation dimensionless parameter was created and confronted with consecrated dimensionless parameters, on the vibrational version, such as Weber number and Froude number in quadratic form, referred to as vibrational criticality. Re-sults suggest limits to the vibration intensity

Estudo cinético na caracterização do status corporal de zinco na Síndrome de Berardinelli-Seip

Conselho Nacional de Desenvolvimento Científico e Tecnológico

Quatro vezes Lula-lá A imagem pública de Lula no horário eleitoral nas quatro campanhas presidenciais

Descreve-se aqui a formação da Imagem Pública de Luis Inácio Lula da Silva através do Horário Gratuito de Propaganda Eleitoral, nas quatro eleições presidenciais que marcaram o período de democratização do País: 1989, 1994, 1998 e 2002. O fato de um candidato contrário às elites, três vezes derrotado em eleições anteriores, conseguir convencer através da mídia a elegê-lo eleitores que votavam antes em seus adversários, demonstra que a democracia representativa brasileira é institucionalmente compatível com regime de informação imposto pelos meios de comunicação de massa na sociedade atual? Além de comprovar a preponderância da Imagem Pública em processos eleitorais em que o Cenário de Representação da Política se caracteriza pela imprevisibilidade, a pesquisa constatou ainda que a atual luta política, mais que uma luta meramente pela visibilidade imposta pela TV e pelos meios de comunicação em geral ainda é uma disputa política. E que a mídia enquadra a política, mas também é por ela agendada, principalmente em momentos de grande incerteza política e/ou pouca previsibilidade eleitoral

Comunicação e cidades: interlocuções para uma interdisciplinaridade nas ciências sociais

This thesis aims at producing knowledge by putting together various theories and empirical analyses. In other words, from an interdisciplinary approach within the Social Sciences and having as background Communication and the City, this work presents, in each chapter, a disciplinary field Literature, Architecture, History and Geography , with which they relate, exhibits its theoretical pillars and performs a case study as a factual and critical contribution, considering the urban spaces of Rio de Janeiro, Brasília, São Paulo and Natal. By so doing, the thesis covers the period from the end of the XIX to the beginning of the XXI Century. Overall, the thesis is an interconnected and dialogic set that points to a cosmology of plural knowledge

Efeitos individuais e interativos da diversidade de detritos, contexto e variabilidade ambiental sobre a magnitude e estabilidade do processo de decomposição

Studies on the effects of changes in biodiversity and ecosystem functioning have been a central theme in ecology over the past two decades. Several studies have showed that the diversity of plant debris differently affects the decomposition process in aquatic and terrestrial environments, but we know very about the effects of detritus diversity on decomposition under fluctuating environmental conditions. We tested whether and how the environmental contexts, as well as the dynamic of their alternation, influence the effects of detritus diversity on the decomposition process. We performed a field experiment where we manipulate the litter diversity of 8 species of terrestrial plants decomposing (litterbags) in single and in mixture containing the eight species together in three different environmental contexts: the terrestrial environment (T), aquatic (A) and interface (I) - experimental treatment that simulates variation in flooding regime. We measured the rate of decomposition through the loss of mass of the community and each individual detritus in monocultures and mixtures. Species richness and environmental variability had no effects on the magnitude and stability of the decomposition process. However, there were significant diversity effects on the decomposition of an individual alien species, F. benjamina. Environmental context had significant effects on the magnitude and variability of decomposition. Detritus decomposition was faster and more variable on aquatic, interface and terrestrial conditions, respectively. Our results demonstrate that the diversity of plant detritus has minor effects to the decomposition across disparate environmental conditions and suggest that it is necessary to consider the potential of other abiotic factors in affect the magnitude and variability of the decomposition processes

As relações entre os saberes pedagógicos do formador na formação docente

Las relaciones de saberlos pedagógicos en la formación de enseñanza, el dirigir de la tesis, si presentes como ocasión de reflejar en saber básico pedagógico el profesor práctico a él, en especial a la formación de profesores. Se considera que con éstos que saben, el profesor adquiere sensibilidad para desarrollar su elemento formativo práctico. Su función principal es favorecer a la relación teoría práctica usándose, para el, de la reflexión como ocasión de concreción de las direcciones. Actuando en diversos cursos de la formación de enseñanza, el nivel de la graduación y algunas instituciones, fue parecido con situaciónproblemas cuál si está instigado, para buscar cada tiempo más para entender porqué en esos diversos contextos prácticos el pedagógico si está configurado diferentemente. Con propósito para entender las direcciones de los formadores de los profesores en cuanto a las relaciones de saberlas pedagógicos en la formación de enseñanza, la investigación se convierte en un continente académico - tres instituciones públicas de educación superior que actúan en el estado del gran río del norte - UFRN, UERN e IFESP. Los participantes de la investigación, entrevistadas con, de 12 profesores-formadores de funcionamiento de los cursos de las matemáticas (licenciatura), de Pedagogía y de normal superior de estas instituciones. Metodología pauta desarrollada en la entrevista comprensiva, el subir de metodológica de la naturaleza cualitativa, básica para interpretar las direcciones y los valores para ser explicitados en el acuerdo los discursos entrevistados. Finalmente, se considera que los cuatro saber si explique para la interrelación que poseen. Para saber para saber si une con para saber para hacer para dar y concebir la idea para hacer. Para saberlos para hacer y para saber se ha sentido solamente habrá tenido con quién a la parte para saber para coexistir. Para saber para ser él será solamente significativo frente las lecciones de los otros para saber. El formador va a redimensionar, gradualmente y concienzudo, cada uno de éstos a saber con la educación. La dirección de aprender se desarrolla en un proceso inverso a la educación, puesto que, el aprendiz, una época el saber a ser, sabe para coexistir con sus pares, sabe para hacer e. Finalmente, sabe para saber. A este movimiento puede ser llamado de sociointeracionismo. Toda esta mediación solamente sucede si el aprendiz sujeto, el estudiante o el profesor, es concienzudo de su desarrollo y de la transformación gradual de la educación y de la sociedad. Saberlos, las filas en práctico son, otra vez, conocimiento constituido desarrollado, complejo y transformado para rehacer el paso. De este modo, si percibe la necesidad de una base para saber destinado pedagógico al profesor y a los ayudadores prácticos de la formación continuada de profesores

Autoconhecimento e práticas corporais: para uma educação transpessoal integradora do saber ao ser no processo de formação inicial dos alunos de educação física

This thesis deals with the self-knowledge importance and corporal practices and the contribution of the Transpersonal Education for the initial formation process of students of Physical Education. In this context, students are stimulated to come in contact with the bases of learning to know, to make, to live together and to be for the promotion of integral education. We give priority to holistic conception of educating based in Emergent Paradigm. In this conception, student in initial formation is led to get back the view of integral being, life and love as education basis. We had as starting point, the essential dimensions to the learning geared toward the embodiment integration, autopoiesis and trans-disciplinarity. This work presents tracks for the teacher formation of Physical Education. It deals with the unfolding of teaching experiences in 2006, in Graduation Course in Physical Education of Universidade Federal do Rio Grande do Norte, in subject of Corporal Conscience, offered to undergraduate students which can be characterized as an action-research. This process was chosen as knowledge and intervention method because it allowed knowing and acting at the same time, studying the conditions and results of accomplished experience. In shared meetings with reflected experiences, we appeal to the experiences of situations that had mobilized the corporal, emotional, mental and spiritual dimensions of participants. The data collected through observations, accounts, questionnaires and interviews of learning processes had been starting points for the beginning of dialogue along with students of Graduation Course in Physical Education. The findings had been interpreted through of hermeneutics and discourse analysis. In this research, participants are considered as protagonist and boosters of educative process. The theoretical basis was supported by Transpersonal Education which contributed for a peace culture and respectful relationship. In its initial formation process, this research protagonists had evidenced of the importance of transpersonal education, geared toward action and changing, new ways of being and living together, facing the daily conflicts from a human and rational perspective. The research emphasized the importance of a new look on the teacher formation of Physical Education to face the limits of fragmented formation. Thus, we recognize that through the teacher education process, the transpersonal education provided wide significant changes reported during research, extending and re-meaning different learning levels such as: cognitive, emotional, attitudinal, and behavioral geared toward the personal and transpersonal development, reiterating the relevance of self-knowledge for development and establishment of pedagogical practice which prioritizes the life direction. The necessity of integrating knowledge to being in the initial process of teaching formation was emphasized in all the transpersonal meetings

Corporeidade e educação: sinfonia de saberes na educação musical

This study investigates the implications between the musical theory and pedagogical practice based on a study that questions the reasons why some students feel incapable of learning the music language, as well as, if the musical codes are truly so difficult to be apprehended by them. To answer these questions takes itself as reference, the classes I have minister while teaching the disciplines: Music Workshop and Music Language I in the Art Department, Scenic Art Course at the Federal University of Rio Grande do Norte. I have searched the knowledge that constitutes the teacher formation based on the union between the pedagogical efficiency and sensibility, searching in the Corporality the theoretical port for my investigation. This way, advocating is a methodological principle for musical education originated from the experience of knowledge: creating, playing, feeling, thinking, and the interaction among them, conducting the students not only to music learning, but to a process of human formation. It adopts itself as methodological resource, amongst the qualitative methods, some of the techniques that are associated with the ethnographic research, for having as its main objective, to study the meaning of the actions and events of the investigated group. The analysis of the data leads to the conclusion that when the teacher displays his or her pedagogical knowledge in an environment constructed with affectivity, in a playful and pleasant form, the assimilation and construction of the musical concepts happen naturally and efficiently, surpassing the taboo that music learning is only possible to the especially well endowed people for music. Very aware that the scientific debate is important for the strengthening of formative programs involved in the growth and consolidation of the musical teaching and learning area, it is expected to promote this research discussions and reflections in the general educational field with this research, as well as, to contribute significantly to the specific growth of musical education

O discurso formativo do Biólogo sobre a morte: matizes e metáforas do saber que o sujeito não deseja saber

This study - Biologist s formative speech about death. Nuances and metaphors from knowing that the subject of do not want to know - shows a marginal cognitive construction in scientific education from biologist - death. It considered as obvious that death is a theme that covers both the scientific education from biologist and the division of the subject, and concerns the splitting of the double life-death and the principles of inclusion and exclusion of the subject. Part of sensitive question: What is the epistemological weave who supports biologist's speech about death? It is constituted an object of study of the biologist s speech on death. It is advocated the thesis that: Death is an epistemological obstacle announcing for something always aims to escape from the perspective of knowledge, especially of scientific knowledge because, since it is understood as cognitive learning about the disruption of biological phenomenon life which is involved on weave of imaginary and symbolic constructions about the finiteness of life; it has constituted a metaphorical knowing - encouraged by the noisy silence - which does not allow to know in full, mobilizing hence subject in searching for transitional truths that reduce the ontological being-mortal anguish centered in subjective dimension involved in the act of knowing. From this movement of search that the object mental life after death wins a symbolic value that requires a real-looking multi-referential for the study of biology - life - and its implications: the finiteness of life, especially by moving the omnipotence of scientific objectivity expressed by signs and symbols that seek say the completeness of scientific knowledge-, signaling thus the existence of the dynamics of incompleteness implicit in subjectivity that supports knowledge relating to the double, life and death, and to the temporality of the existence of Homo sapiens sapiens, with the axis guiding the desire of the subject, do not want to know about death, implicit in the mechanisms objective-subjective founded by non-said of death is the epistemology of the existence of objective-subjective subject, whose core is the negation of death. The theoretical methodological knowing web is anchored in the multi-reference which favors a transit by theoretical current, as the Psychoanalysis, bachelardian philosophy, the epistemology of complexity, the Thanatology, the Social Psychology, and Etnocenology, and Understanding Interview. The unveiling of the study object from the analysis of oral speech of eleven biologists who serve in high school, from three main guiding: Death in the history of life,Death in biologist s academic education and, Conceptions about concepts

Paisagens sonoras, tempos e autoformação

Les sociétés actuelles vivent des temps de vitesse, de l'individualisme, de l'absence d'enracinement historique: en harmonie avec le processus de formation de la civilisation du monde occidental contemporain profondément marqué par le paradigme de la globalisation. La pollution visuelle et sonore des grandes villes est, en même temps, l'expression de la pollution des sens et des affections humaines. En reflétant sur ce processus, la thèse discuter em faveur d'une formation réglée dans la logique du sensible qu'il a dans l'écouter près de la nature (Lévi-Strauss) un de leurs piliers épistémologiques ondamentales. Cette forme de penser et vivre reconnaît dans l'autoformation (Edgar Morin), et dans l'exercice de construction, par le sujet, de leurs propres paysages sonores (Murray Schafer), deux opérateurs cognitifs capables de nourrir les principes de la diversité, complexité, interdépendance et respect à la nature (Fritjof Capra). Dans le parcours argumentatif de la thèse gagnent emphase les savoirs de la tradition, les pratiques et les connaissances produites par les sociétés le plus proche de la nature qui, par des stratégies cognitives ouvertes et des polyphoniques, donnent importance aux facultés sensibles et à la complémentarité des deux itinéraires de la pensée: symbolique/mythologique/magique et empirique/technique/rationnel (Edgar Morin). Proche d'une perspective autobiographique, la thèse se présente dans la forme narrative d'un registre avec des évocations poétiques, philosophiques et musicales germées de l'écouter d'un paysage particulier, la Lagon du Piató, localisé dans la région de l'Assu (Rio Grande do Norte) et, en particulier, des récits et des évocations de mémoire d'un de leurs habitants auxlesquels nous pourrions appeler d'un philosophe de la nature , Francisco Lucas da Silva (Chico Lucas). Ensuite, ils sont décrits non-place (Marc-Augé) des scénarios métropolitains, en discutant ainsi les excès de pollution sonore, visuelle et de l'afection. En ayant comme estimé une éducation complexe ancrée dans non séparation il entre réforme de l'éducation et reforme de la pensée, de la formation et autoformation (Edgar Morin), à la fin, la thèse propose des ateliers d'expérimentation de l'écouter sensible entre des jeunes et des enfants sur le contexte scolaire, en pariant dans les futures générations (Ilya Prigogine) pour la reconstruction d'un monde plus juste et solidaire

A construção do princípio do cooperação na Pedagogia Freinet:uma prática em sala de aula do ensino fundamental

Cette recherche est ancrée dans les racines de la pédagogie de Célestin Freinet, un des plus importants éducateurs du XXème siècle, car ses propositions naissaient de la réalité de l élève lequel était, de ce fait, valorisé. Au début de ses recherches, Freinet s est rendu compte que pour pouvoir édifier une école qui, effectivement, atteigne les classes populaires, il devrait réaliser des changements dans le milieu scolaire. Notre travail le principe de coopération dans les actions développées par le professeur et ses élèves dans le quotidien de la salle de classe. Les décisions pour la réalisation de ce travail ont exigé, de notre part, une profonde et globale réflexion vis à vis des pas qui devraient être entamés, considérant que notre intention n était pas de faire une simple intervention dans le système scolaire avec une programmation pré-établie, sans instruments crées à priori pour le développement d actions dans le contexte scolaire. Comme questions principales nous pouvons souligner: Comment la coopération contribue pour le vécu des élèves? De quelle manière ce principe se réalise dans le quotidien de la salle de classe? Le principe coopératif, pourrait-il agir comme une alternative qui favorise la dynamique de la salle de classe et des relations entre les élèves? Le principe de la coopération exige la création d une ambiance en salle de classe dans laquelle il existe des éléments médiateurs dans la relation professeur-élève. Ainsi, l organisation de la salle a un caractère important; il faut considérer la participation des élèves dans la construction de ses connaissances. Pour cela, il est nécéssaire créer des structures qui doivent être complétées à partir de l activité des propres élèves. Dans la ligne de cette pensée nous avons, donc, comme objectifs spécifiques: 1) Investiguer, dans l action pédagogique du professeur, l utilisation de stratégies pour la consolidation du principe coopératif pour la salle de classe; 2) Faire une réflexion à propos de l organisation du travail coopératif développé par le professeur en observant comment celui-ci est réalisé en salle de classe; 3) Établir un répertoire des vécus de coopération construits en salle de classe par les élèves et le professeur. Ainsi, pour développer une interaction avec les sujets de la recherche [professeurs et élèves] des études ont été développés ancrés sur les principes de la recherche qualitative de type ethnographique pour considérer ce dernier un référentiel méthodologique plus indiqué à l utilisation des téchniques d observation, interviews et analyse de documents, car ces téchniques sont, traditionnellement, associées à l ethnographie. Cette recherche a pour but comprendre la vision de ce qui arrive quotidiennement dans la salle de classe observée et les multiples relations imbriquées dans le processus de motivation de l apprentissage utilisant la coopération

Agir, aprender, formar, intervir, agir uma experiência dos consultores internos na gestão do conhecimento da Petrobrás UN-RNCE

This research aims at studying the formation of internal consultants in organizational setting in the joint resolution of problems, around the conversion of knowledge. The objective of research is to understand and explain the meanings attributed by Petrobras internal consultants to their practice and training for the conversion process of tacit knowledge into explicit, around the joint resolution of their problems with their collaborators. It has directed the next question: what the meanings assigned by the consultants of Unidade de Negócios Rio Grande do Norte e Ceara (UN-RNCE) in Knowledge Management (KM), for their interventionist and formative practices in problem solving, as well as conversion of tacit knowledge in explicit? This paper has assumed that there is a dual logic integrated into its daily practices: solving troubles and converting knowledge. The thesis has considered the daily practices of these consultants are characterized as epistemic spaces and permanent education through the conversion of knowledge. It has adopted the principles of multi-referential approach as foundations, regarding the translation of a variety of angles, perspectives and prospects which allow the interpretation and understanding of complex issues that are part of conversion of knowledge. The understanding and explanation of the senses are based on the methodology of the comprehensive interview; taking ownership is the sensitive listening for comprehensive interpretation of oral discourses of ten consultants, in addition to the autoscopy that putting into practice, thus, the stance of the researcher as an intellectual craftsman. Furthermore, it has assessed that the limits and possibilities for training and learning in the conversion of knowledge arise, on one hand from a predominantly driven training culture by the paradigm of technical rationality and one the other hand, from a set of relationship to knowledge and relation to know , revealed in the search for training in other dimensions. There are tensions between the local and global demands located in a situation marked by a systemic organization of knowledge. However, the context is perceived by researchers as impregnated by the discontinuity, unpredictability and uncertainty; mobilizing a number of elements necessary for the mediation in training practices of these consultants. Finally, it has set an instrumental and technological support, restricting the formation and undermining the position of the consultancy as nuclear function in Knowledge Management