MODELISATION ET CONCEPTION D'UNE THERMO-FRIGO-POMPE HYBRIDE A COMPRESSION ABSORPTION PDF Download
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Author: DIDIER.. ALO
Publisher:
ISBN:
Category :
Languages : fr
Pages : 225
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Book Description
ON ETUDIE, SUR LE PLAN THEORIQUE ET EXPERIMENTAL, DES SYSTEMES THERMODYNAMIQUES A COMPRESSION-ABSORPTION DESTINES A LA PRODUCTION SIMULTANEE DE FROID ET DE CHALEUR. LE CYCLE HYBRIDE ELEMENTAIRE, AVEC LE MELANGE EAU-AMMONIAC, EST APPLICABLE AUX DOMAINES DES MACHINES FRIGORIFIQUES (-20C) ET DES POMPES A CHALEUR (JUSQU'A 100C). L'EFFICACITE DU CYCLE RESTE INFERIEURE DE 1 A 10% A L'EFFICACITE D'UN CYCLE A COMPRESSION D'AMMONIAC MAIS COMPARABLE AVEC CELLE DES CYCLES UTILISANT LES HCFC CLASSIQUES. NOUS INTRODUISONS ET DECRIVONS PLUS DE 60 CYCLES HYBRIDES COMPOSES AU PLUS DE SIX ELEMENTS PRINCIPAUX. NOTRE CHOIX DE L'APPLICATION, NOUS A CONDUIT A RETENIR SEULEMENT SIX CYCLES. LES PERFORMANCES SIMULEES APPARAISSENT DISPERSEES ET SANS RELATION AVEC LE NOMBRE DE CONSTITUANTS. ELLES SONT INFERIEURES DE 13% ENVIRON A LA PERFORMANCE D'UN CYCLE A AMMONIAC PUR A DEUX ETAGES (A INJECTION TOTALE). LE BANC D'ESSAIS SE COMPOSE D'UN CYCLE A COMPRESSION D'AMMONIAC PUR COUPLE A UN CYCLE HYBRIDE ELEMENTAIRE. LES RESULTATS, SUR LE CIRCUIT HYBRIDE, DONNENT UN COEFFICIENT DE PERFORMANCE FRIGORIFIQUE COMPRIS ENTRE 3 ET 3,4 SELON LA COMPOSITION DU MELANGE (90 A 60%) POUR L'ECART DE TEMPERATURE 0/40C SUR LE FRIGORIGENE. LA PERFORMANCE MAXIMALE POUR LES TEMPERATURES 0/60C TOMBE A 2,12. LA PUISSANCE THERMIQUE VARIE DANS UN RAPPORT DE 1 A 4 LORSQUE LE TAUX DE RECIRCULATION VARIE. LE COUPLAGE DES DEUX CIRCUITS NE POSE PAS DE DIFFICULTE PARTICULIERE ET LE FONCTIONNEMENT EN THERMO-FRIGO-POMPE EST VALIDE POUR DES ECARTS DE TEMPERATURE DE 100 K DANS LE CYCLE. L'EFFICACITE DE L'ABSORBEUR EST SUPERIEURE A CELLE DU DESORBEUR QUI ATTEINT EN MOYENNE 0,75. L'INTERET DES ECHANGEURS A PLAQUES, CHOISIS POUR L'ABSORPTION ET LA DESORPTION, EST DEMONTRE BIEN QUE DES MODIFICATIONS DOIVENT ETRE APPORTEES POUR ETENDRE LEURS CONDITIONS DE FONCTIONNEMENT
Author: DIDIER.. ALO
Publisher:
ISBN:
Category :
Languages : fr
Pages : 225
Get Book Here
Book Description
ON ETUDIE, SUR LE PLAN THEORIQUE ET EXPERIMENTAL, DES SYSTEMES THERMODYNAMIQUES A COMPRESSION-ABSORPTION DESTINES A LA PRODUCTION SIMULTANEE DE FROID ET DE CHALEUR. LE CYCLE HYBRIDE ELEMENTAIRE, AVEC LE MELANGE EAU-AMMONIAC, EST APPLICABLE AUX DOMAINES DES MACHINES FRIGORIFIQUES (-20C) ET DES POMPES A CHALEUR (JUSQU'A 100C). L'EFFICACITE DU CYCLE RESTE INFERIEURE DE 1 A 10% A L'EFFICACITE D'UN CYCLE A COMPRESSION D'AMMONIAC MAIS COMPARABLE AVEC CELLE DES CYCLES UTILISANT LES HCFC CLASSIQUES. NOUS INTRODUISONS ET DECRIVONS PLUS DE 60 CYCLES HYBRIDES COMPOSES AU PLUS DE SIX ELEMENTS PRINCIPAUX. NOTRE CHOIX DE L'APPLICATION, NOUS A CONDUIT A RETENIR SEULEMENT SIX CYCLES. LES PERFORMANCES SIMULEES APPARAISSENT DISPERSEES ET SANS RELATION AVEC LE NOMBRE DE CONSTITUANTS. ELLES SONT INFERIEURES DE 13% ENVIRON A LA PERFORMANCE D'UN CYCLE A AMMONIAC PUR A DEUX ETAGES (A INJECTION TOTALE). LE BANC D'ESSAIS SE COMPOSE D'UN CYCLE A COMPRESSION D'AMMONIAC PUR COUPLE A UN CYCLE HYBRIDE ELEMENTAIRE. LES RESULTATS, SUR LE CIRCUIT HYBRIDE, DONNENT UN COEFFICIENT DE PERFORMANCE FRIGORIFIQUE COMPRIS ENTRE 3 ET 3,4 SELON LA COMPOSITION DU MELANGE (90 A 60%) POUR L'ECART DE TEMPERATURE 0/40C SUR LE FRIGORIGENE. LA PERFORMANCE MAXIMALE POUR LES TEMPERATURES 0/60C TOMBE A 2,12. LA PUISSANCE THERMIQUE VARIE DANS UN RAPPORT DE 1 A 4 LORSQUE LE TAUX DE RECIRCULATION VARIE. LE COUPLAGE DES DEUX CIRCUITS NE POSE PAS DE DIFFICULTE PARTICULIERE ET LE FONCTIONNEMENT EN THERMO-FRIGO-POMPE EST VALIDE POUR DES ECARTS DE TEMPERATURE DE 100 K DANS LE CYCLE. L'EFFICACITE DE L'ABSORBEUR EST SUPERIEURE A CELLE DU DESORBEUR QUI ATTEINT EN MOYENNE 0,75. L'INTERET DES ECHANGEURS A PLAQUES, CHOISIS POUR L'ABSORPTION ET LA DESORPTION, EST DEMONTRE BIEN QUE DES MODIFICATIONS DOIVENT ETRE APPORTEES POUR ETENDRE LEURS CONDITIONS DE FONCTIONNEMENT
Author: Catherine Barnard
Publisher: Bloomsbury Publishing
ISBN: 184731869X
Category : Law
Languages : en
Pages : 337
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Book Description
The Cambridge Yearbook of European Legal Studies provides a forum for the scrutiny of significant issues in EU Law, the law of the European Convention on Human Rights, and Comparative Law with a 'European' dimension, and particularly those issues which have come to the fore during the year preceding publication. The contributions appearing in the collection are commissioned by the Centre for European Legal Studies (CELS) Cambridge, a research centre in the Law Faculty of the University of Cambridge specialising in European legal issues. The papers presented are at the cutting edge of the fields which they address, and reflect the views of recognised experts drawn from the University world, legal practice, and the institutions of both the EU and its Member States. Inclusion of the comparative dimension brings a fresh perspective to the study of European law, and highlights the effects of globalisation of the law more generally, and the resulting cross fertilisation of norms and ideas that has occurred among previously sovereign and separate legal orders. The Cambridge Yearbook of European Legal Studies is an invaluable resource for those wishing to keep pace with legal developments in the fast moving world of European integration. INDIVIDUAL CHAPTERS Please click on the link below to purchase individual chapters from Volume 13 through Ingenta Connect: www.ingentaconnect.com SUBSCRIPTION TO SERIES To place an annual online subscription or a print standing order through Hart Publishing please click on the link below. Please note that any customers who have a standing order for the printed volumes will now be entitled to free online access. www.hartjournals.co.uk/cyels/subs Editorial Advisory Board: Albertina Albors-Llorens, John Bell, Alan Dashwood, Simon Deakin, David Feldman, Richard Fentiman, Angus Johnston, John Spencer Founding Editors: Alan Dashwood and Angela Ward Ius Commune Prize 2012 Alexandre Saydé wrote Chapter 15 in this volume entitled: 'One Law, Two Competitions: An Enquiry into the Contradictions of Free Movement Law' and we are delighted to announce that he has been awarded the Ius Commune Prize 2012.
Author: John E Tedstrom
Publisher: Routledge
ISBN: 9780367303211
Category :
Languages : en
Pages : 239
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Book Description
This book highlights that Soviet economic planners and politicians must come to recognize the need to make fundamental changes, not simply incremental refinements, in the failing Soviet system. It examines the dynamics of the process of perestroika and the complexity of individual economic issues.
Author: Henry Allan Ironside
Publisher:
ISBN:
Category : Bible
Languages : en
Pages : 464
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Book Description
Author: D H Lawrence
Publisher:
ISBN:
Category :
Languages : en
Pages : 100
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Book Description
"The Ladybird is a long tale or novella by D. H. Lawrence. It was first drafted in 1915 as a short story entitled The Thimble. Lawrence rewrote and extended it under a new title in December 1921 and sent the final version to his English agent on 9 January 1922. It was collected with two other tales, The Captain's Doll and The Fox, and the three novellas were then published in London by Martin Secker in March 1923 under the title The Ladybird and in New York by Thomas Seltzer as The Captain's Doll in April 1923."
Author: Pj Group Publishing
Publisher: Createspace Independent Publishing Platform
ISBN: 9781490529349
Category :
Languages : en
Pages : 54
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Book Description
When you think of the word "salad" do you associate it with the words "boring," "dull" or "diet?" Many people associate salads with diet foods, believing there is no reason to eat them unless you have to. In reality, a salad can not only be very healthy but also very flavorful! A traditional chicken Caesar salad tossed in homemade dressing and topped with fresh parmesan cheese is anything but boring and a southwestern chicken salad is sure to tempt your taste buds. If you want to take a step toward a healthier diet without sacrificing flavor, try these simple salads!
Author: David Evans
Publisher: John Wiley & Sons
ISBN: 1118472489
Category : Science
Languages : en
Pages : 346
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Book Description
This timely volume brings together expert reviews of the recent significant advances in our knowledge and understanding of the organisation of the higher plant nucleus, and in particular in the relationship between nuclear organisation and the regulation of gene expression. Rapid progress has been made in a number of key areas over the last five years, including description and characterization of proteins of the nuclear envelope and nuclear pore complex, novel insights into nucleoskeletal structures, as well as developments related to chromatin organization, function and gene expression. These advances open the way for new research into areas such as stress tolerance, plant-pathogen interactions and ultimately crop improvement and food security. Continued research into plant nuclear structure, genome architecture and gene regulation also enriches our understanding of the origin and evolution of the nucleus and its envelope. Edited by world-class researchers in plant cell biology, and comprising contributions from internationally-renowned academics, this latest volume in the prestigious Annual Plant Reviews series brings together a wealth of knowledge in the burgeoning field of plant nuclear structure and genetics. Annual Plant Reviews, Volume 46: Plant Nuclear Structure, Genome Architecture and Gene Regulation is a vital resource for advanced students, researchers and professionals in plant science and related disciplines. Libraries in all research establishments where plant science, biochemistry, molecular biology, genetics and genomics and agricultural science are taught and studied will find this excellent volume an essential addition to their shelf.
Author: Abdykappar A. Ashimov
Publisher: Springer Science & Business Media
ISBN: 1461444608
Category : Business & Economics
Languages : en
Pages : 296
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Book Description
This is a sequel to the book by Dr. A. Ashimov and his colleagues, Macroeconomic Analysis and Economic Policy Based on Parametric Control. The authors have expanded both the developed mathematical apparatus and the scope of problems and applications stemming from the practice of steering a national economy of a small country in the dynamic environment of the international economic order. The developed theoretical foundation is used in Chapter 1 to suggest a decision support system operating in the framework of state economic policy making. Chapter 2 presents various mathematical models built on the basis of the available statistical data and provides quality assessment of these models. Parametric control problems are being formulated on the basis of these models as problems of mathematical programming, and the obtained solutions are subjected to analyses and interpretations. This is demonstrated by the analysis of the effect of uncontrollable factors on the problem solutions. Chapter 3 is aimed at the modelling and analysis of cyclic phenomena in economics and their structural stability. Chapter 4 presents solutions of specific problems of national economy and analysis and interpretation of their solutions. In summary, the authors formulate comprehensive mathematical models of some critical mechanisms in micro economics previously known only on a qualitative level. They provide vigorous mathematical analysis of the models that justifies their applicability for the formulation of parametric control problems, and the existence of model-based solutions. The complexity of the resultant problems is addressed by the formulation of the appropriate algorithms. The described methodology leads to the development of computer-based decision support systems.
Author: Anatoly Martynyuk
Publisher: CRC Press
ISBN: 1466570865
Category : Mathematics
Languages : en
Pages : 230
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Book Description
Weakly Connected Nonlinear Systems: Boundedness and Stability of Motion provides a systematic study on the boundedness and stability of weakly connected nonlinear systems, covering theory and applications previously unavailable in book form. It contains many essential results needed for carrying out research on nonlinear systems of weakly connected equations. After supplying the necessary mathematical foundation, the book illustrates recent approaches to studying the boundedness of motion of weakly connected nonlinear systems. The authors consider conditions for asymptotic and uniform stability using the auxiliary vector Lyapunov functions and explore the polystability of the motion of a nonlinear system with a small parameter. Using the generalization of the direct Lyapunov method with the asymptotic method of nonlinear mechanics, they then study the stability of solutions for nonlinear systems with small perturbing forces. They also present fundamental results on the boundedness and stability of systems in Banach spaces with weakly connected subsystems through the generalization of the direct Lyapunov method, using both vector and matrix-valued auxiliary functions. Designed for researchers and graduate students working on systems with a small parameter, this book will help readers get up to date on the knowledge required to start research in this area.
Author: AGI Creative Team
Publisher: Wiley
ISBN: 9781118394076
Category : Computers
Languages : en
Pages : 0
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Book Description
Introduction to Adobe Flash Professional CS6 with ACA Certification, written by expert instructors, provides all the classroom tools needed to teach a complete certification program. Your students learn to design and maintain dynamic websites using Adobe Flash. This curriculum covers topics such as using layers to build animation sequences, creating interactive web components with ActionScript, project management and much more. Through the ACA coverage, students will also learn valuable insight into animation and web design job roles that use Flash. This single book provides students with a complete introduction to Flash along with a comprehensive exam preparation. This complete classroom course, created by a team of Adobe experts who have developed training programs for Adobe Systems, offers your students the opportunity to confidently prove their skills mastery and gain this job-focused certification to give them the needed edge on their career path. Adobe Certified Associate exam vouchers are available for bundling for an additional fee.
