FACULTY OF BUILDING SERVICES. Eng. Ioan GIURCA. Ph.D. THESIS - ABSTRACT -

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1 FACULTY OF BUILDING SERVICES Eng. Ioan GIURCA Ph.D. THESIS - ABSTRACT - CONTRIBUTIONS REGARDING THERMAL ENERGY SUPPLY FOR BUILDING BLOCKS USING LOW YEALD THERMAL AGENTS Ph.D. Thesis analysis and sustain board: Thesis advisor, Prof. eng. Gheorghe BADEA Ph.D. CHAIRMAN: MEMBERS: - Reader eng. Viorel DRAGOŞ Ph.D. - prodean, Faculty of Building Services, Cluj Napoca Technical University; - Prof. eng. Gheorghe BADEA Ph.D. - Scientific Advisor, Faculty of Building Services Cluj Napoca Technical University; - Prof. eng. Traian CRUCERU Ph.D. - Refferent, Bucharest Civil Enggineering Technical University ; - Prof. eng. Theodor MATEESCU Ph.D.- Refferent, Iassy,,Gh. Asachi Technical University - Prof. eng. Adrian RETEZAN Ph.D. - Refferent, Timisoara Politechnical University 2009

2 THANK YOU NOTE The Author feels compelled to thank all the Professors that led him on the arduous journey to the Altar of Science.. Also the Author gives thanks to all his colleagues, whom, through their support and trust bestowed upon him, made the completion of his PhD Thesis possible.. For their constructive, thorough and pertinent obsevations regarding the Thesis, the Author gives thanks to all the official Scientific Refferents.. The Author also gives thanks to the PhD Department from Cluj Napoca Technical University, for its benevolence and solicitude in tackling with the inherent difficulties that arrise in a would be PhD Graduate s activity. My gratitude also extends toward my Scientific Advisor, University Proffesor Eng. Gheorghe BADEA PhD Dean of the Faculty of Building Services from Cluj Napoca Technical University, whose competence, experience and professionalism, generousely displayed throughout our collaboration, made possible the birth of this work. The words will never be enough to express my gratitude. Last, but not least, I give thanks to my family who has supported me constantly and provided me with the optimal conditions for work on this Thesis. If I were to mention the ONE thing that helped me immensely in this work of analisys an synthesis, that would be inavoidable THE INTERNET, which, with the help of many generous people, has constantly backed me up, and pushed me into completion of this work. To all this I give my thanks and assurances of my eternal esteeme and appreciation. Cluj-Napoca, 2009 eng. GIURCA Ioan KEY-WORDS Abstraction, analysis, thermic boilers, meterization, deduction, long-term development, economical saving, efficiency, effectiveness, economical efficiency, environmental efficiency, social efficiency, technical efficiency, induction, heating devices, internal heating devices, optimum standards, multi-criterial optimum, thermic spots, thermic network, synthesis. 2

3 PhD THESIS CONTENTS Chapter Name no HEAD SHEET THANK YOU NOTE PHD THESIS CONTENTS ABSTRACTION CONTENTS TERMINOLOGY PHD MAIN ABBREVIATION LIST PHD MAIN SYMBOLS LIST FIGURES LIST TABLES LIST ANNEX LIST 1 INTRODUCTION 2 CURRENT LEVEL OF KNOWLEDGE REGARDING THERMAL ENERGY SUPPLY FOR BUILDING BLOCKS USING LOW YEALD THERMAL AGENTS 3 CONSIDERATIONS REGARDING COST BENEFIT ANALISYS FOR CENTRAL HEATING SYSTEMS IN BUILDING BLOCKS 4 THERMAL EFFICIENCY OF CENTRAL HEATING SYSTEMS IN BUILDING BLOKS 5 QUANTITATIVE METHODS USED IN OPTIMISING HEATING SUPPLY SYSTEMS IN BUILDING BLOCKS 6 MULTICRITERIAL ANALISYS METHODS USE FOR DECISSION MAKING 7 CASE STUDY 8 AUTHOR S CONTRIBUTION REGARDING THERMAL ENERGY SUPPLY FOR BUILDING BLOCKS USING LOW YEALD THERMAL AGENTS 9 FINAL CONCLUSIONS BIBLIOGRAPHY ANNEX 3

4 CHAPTER I INTRODUCTION First Chapter makes the introduction in the subjects being treated within the Thesis. During this chapter, the importance, and most of all today s importance of those subjects are justified. Also the Author s objectives in this Thesis are being established, along with future developments in the studied area. CHAPTER II CURRENT LEVEL OF KNOWLEDGE REGARDING THERMAL ENERGY SUPPLY FOR BUILDING BLOCKS USING LOW YEALD THERMAL AGENTS The second Chapter presents a synthesis of the refference material used by the Author, concerning Central Heating Systems using hot water as thermal agent. From this analisys are being derived a series of conclusions as well as the main research directions. CHAPTER III CONSIDERATIONS REGARDING COST BENEFIT ANALISYS FOR CENTRAL HEATING SYSTEMS IN BUILDING BLOCKS This Chapter presents the characteristics of Cost Benefit Analisys for central heating systems in building blocks. In choosing the technical solutions, beside the economical and technical criteria, the environmental and social repercursions must be taken into account.. CHAPTER IV THERMAL EFFICIENCY OF CENTRAL HEATING SYSTEMS IN BUILDING BLOKS This Chapter deals with the technical solutions for increasing technical efficiency as well as the methods by which this is achieved, when dealing with central heating systems in building blocks Thermal efficiency of central heating systems is a necessary but non-sufficient condition in choosing technical solutions. In oder to finance a technical solution, beside the technical efficiency criteria, economical efficiency criteria must be attained. CHAPTER V QUANTITATIVE METHODS USED IN OPTIMISING HEATING SUPPLY SYSTEMS IN BUILDING BLOCKS In the first part of this chapter, the stages and criteria upon which optimising heating systems for building blocks is based, are being presented. Consequently, a presentation of the methods used for optimising heating systems for building blocks follows, starting from the consumer s end and working its way up to the source of the thermal energy. In the end conclusions regarding optimising heating systems for building blocks are presentetd. The methods for quantitative optimisation allow for deriving the optimal solution based on technical, economical, environmental and social criteria. If the technical solutions cannot be separated by using quantitative methods, then an analsys based on multicriterial methods follows. The final choice however rely on Cost Benefit Analisys. The Author wishes to emphasise the fact that engineers and scientists often consider only the so called technical issue and disregard alltogether the economical side of the matter and social. CHAPTER VI MULTICRITERIAL ANALISYS METHODS USE FOR DECISSION MAKING Multicriterial methods may be used: In the design stage: pre-feasibility study, feasibility study, auditing activities for buidings; 4

5 In public aquisitions; In construction works; In managing installation systems. The main practical applications of the multicriterial methods in central heating systems are: Works, services and materials supplier selection by the designer, benefficiary, construction works companies and installation management companies; Choosing the materials by the designer, benefficiary, construction works companies and installation management companies; Choosing the equipments by the designer, benefficiary, construction works companies and installation management companies Project evaluation by the designer, benefficiary and financing body; Assesing the quality of the technical sollutions by the designer; Annual personnel evaluation within the design companies, construction works companies and installation management companies. CHAPTER VII CASE STUDY This Chapter presents the Performance Audit for the first stage of the Project,,Municipal Utility Systems Development/ Heating Systems in Ploiesti Municipality, TECP/THE BERD Programme, to asses the correct use of public funds.. Following the completion of the Performance Audit for the fist stage of the Project,,Municipal Utility Systems Development/ Heating Systems in Ploiesti Municipality, TECP/THE BERD Programme the next conclusions were drawn: 1. The speciffic investment is within the value boundaries set by similar Projects, thus the Condition of Economicity being fullfiled 2. The investment reached the planned Production Capacity as described in the design stage Feasibility Study, thus the investment meet the Economic Efficiency criteria; 3. The investment has led to diminished heat losses, diminished specific energy consumption, and diminished personnel costs, thus fullfiling the technical efficiency requirement; 4. During the operational stage of the investment, the parameters set during the Design (Feasibility Study) stage were attained, thus the investment meets the efficacity criteria. Following the completion of the Performance Audit for the first stage of the Project,,Municipal Utility Systems Development/ Heating Systems in Ploiesti Municipality, TECP/THE BERD Programme, it is clear that the public funds were used efficiently considering the fact that all three criterias regarding Ecomicity, Efficiency and Efficacity were met simultaneousely. CHAPTER VIII AUTHOR S CONTRIBUTION REGARDING THERMAL ENERGY SUPPLY FOR BUILDING BLOCKS USING LOW YEALD THERMAL AGENTS In Chapter VIII, the Author s contributions and ways of using the results are being presented. Reporting the contributions to the current level of research and development both national and international, has been made by taking into account over 487 works, of which 19 belong to the Author. In the field of Applied Research, the results of the research will be put to good use by publishing a Book regarding CENTRAL HEATING SYSTEMS USING HOT WATER AS THERMAL AGENT. CHAPTER IX FINAL CONCLUSIONS During Chapter IX, the final conclusions derived from PhD Thesis studies are being presentetd and as well as proposing future avenues of research regarding Thermal Energy Supply for Building Blocks. At the end of Chapters 2 through 7, a paragraph has been assigned for issues solved and contributions given by the Author during the respective Chapter. The partial conclusions of each Chapter make for the essence of the problems analysed, presenting succintely but accurately all the shortcomings and limitations. The final choice of the technical solutions is based on Cost Benefit Analisys 5

6 For the efficient use of public funds, one must verify the degree by which the Projects fulfills the requirements for efficiency (technical, economical, environmental and social), economicity and efficacity. Thus, for this kind of projects, the Cycle PEVA (Plan, Execute, Verify, Act), apply. Funds distribution between various Projects is based on Allocation Efficiency. The research conducted, and the conclusions derived open new perspectives for study, and the development of knowledge in this field of expertise. This work comprises only part of the data being researched by the Author, the volume of which is to great to be fully treated. The primary data are open for whom it may concern. The Author is open for collaboration with all those interested in further aprofundation of the issues of efficiency and optimization of Thermal Energy Supply Systems for Building Blocks. SELECTIVE BIBLIOGRAPHY The work benefits form an ample and to-date bibliography, which makes possible the presentation of a large and comprising illustrated material, tables, synthesis, on which this Thesis is based. [10] Asociaţia Inginerilor de Instalaţii din România, Manualul de Instalaţii de încălzire. Editura Artecno, Bucureşti, Pagina 155 ; ; 231; ; 408; 409; 438; ; ; 441; 442; Tabelul ; [18] Bacoţiu, C., Contribuţii privind gestionarea sistemelor de canalizare. Teză de doctorat. Universitatea Tehnică Cluj-Napoca - Facultatea de Construcţii - Secţia Instalaţii pentru Construcţii. Martie Pagina 87; 95; 97; Capitolul: 5.1; 5.3.3; [22] Badea, Gh., ş.a., Alegerea optimă a radiatoarelor utilizând metoda multicriterială Electre Iv. Volumul XXXIV a Conferinţei Naţionale de Instalaţii, Instalaţii pentru începutul Mileniului III, Sinaia Pagina 25-30; [23] Badea, Gh., ş.a., Analiza multicriterială pentru alegerea optimă a radiatoarelor. Conferinţa Ştiinţa Modernă şi Energia, Volumul XVII, Cluj-Napoca, Pagina 52-61; [40] Berbecaru, D., Elemente de evaluare pentru un top al echipamentelor de instalaţii. A XXX-A Conferinţă de instalaţii. Sinaia octombrie, Pagina 35-37; [51] Botez, C., Contribuţii privind optimizarea funcţional energetică a reţelelor pentru transportul energiei termice. Teză de doctorat. Universitatea Tehnică Gheorghe Asachi Iaşi. Facultatea de Construcţii. Iaşi, Pagina 34; 33-36; [70] Chisăliţă, G., Contribuţii la dezvoltarea sistemelor expert utilizate în proiectarea şi analiza instalaţiilor pentru construcţii. Teză de doctorat. Universitatea Tehnică din Cluj-Napoca. Facultatea de Construcţii şi Instalaţii. Cluj-Napoca, Pagina 88-89; [83] Costea, V. ş.a., Management. UT PRESS, Cluj-Napoca, ISBN Pagina 93; 94-95; 94; 98; [84] Costea, V., Model matematic pentru fundamentarea soluţiei optime în alegerea combustibilului pentru încălzirea clădirilor izolate. A XVIIa Conferinţă de Instalaţii, Sinaia, octombrie Volumul 1. Pagina ; [95] Cyssau, R., (COSTIC), Une formule pour optimiser le cout des installations. Article publié dans la revue CVC (Chauffage, Ventilation, Conditionnement d air) N 10 Octobre 1998; [96] Cyssau, R. ş.a, (COSTIC), Le monotube au meilleur cout. Article publié dans la revue CVC (Chauffage, Ventilation, Conditionnement d air) N 6 Juin 2000; [100] Dinu, V., Aprecierea calităţii mărfurilor alimentare şi nealimentare - Caiet de lucrări practice. Capitolul 6 Aparate electrocasnice. ASE Bucureşti. Pagina 1-13; [102] Dobre, I. ş.a., Modelarea deciziilor economico-financiare. Academia de Studii Economice. Facultatea de Cibernetică, Statistică şi Informatică Economică. Bucureşti, Prefaţă, Capitolul 1, Capitolul 2, Capitolul 3; [121] Gallo Emmanuelle, Modernité technique et valeur d usage le chauffage des bâtiments d habitation en France. Thèse. INHA, Paris. 11 décembre Pagina 91; 92; 349; 353; [122] Gary Phetteplace, Optimal Design of Piping Systems for District Heating. CRREL REPORT U.S. Army Corps of Engineers Cold Regions Research & Engineering Laboratory. August Pagina 5; [162] Ilina, M. ş.a., Analiza structurii sortimentale şi a calităţii microcentralelor termice. Buletin Informativ 1/2000. Pagina 19; 20; 20-21; 21; 21-22; [217] Munteanu, A., Optimizarea constructivă a reţelei electrice de distribuţie din incinta consumatorului. Teză de doctorat. Universitatea Tehnică din Cluj-Napoca. Facultatea de Construcţii. Cluj-Napoca, Pagina 6-15; 6-22; 6-25; 6-28; 6-29; ; 6-60; [220] Natasa Djuric, Real-time supervision of building HVAC system performance. Doctoral thesis. Norwegian University of Science and Technology. Faculty of Engineering Science &Technology. Department of Energy and Process Engineering Pagina 35-38; 63-64; [226] Oancea, N., Program pentru dimensionarea reţelelor termice ramificate Dimensionarea economică a reţelei termice. Revista Tehnica instalaţiilor, nr. 6/2003. Pagina 19-20; [232] Opriţoiu, A. ş.a., Aparate şi generatoare termice. Generatoare termice - Construcţie şi calcul. UT PRESS, Cluj-Napoca, Pagina ; ; [236] Petca, I., Curs Management. Partea V - Luarea deciziilor în organizaţia militară. Academia Forţelor Terestre din Sibiu. Partea V; [248] Postolache, F., Analiza eficienţei procesului de demonopolizare şi privatizare a sistemului energetic în Republica Moldova. Teză de doctorat. Bucureşti, Ministerul Învăţământului. Academia de Studii Economice. Catedra Analiză Economico-Financiară. Pagina 60; 110; ; [257] Rietschel, H. ş.a., Tehnica încălzirii şi ventilării. Editura Tehnică, Bucureşti, Pagina 9; ; ; [260] Românu, I. ş.a., Managementul investiţiilor. Editura Mărgăritar, Bucureşti, Pagina ; 134; ; [267] Sârbu, I., Optimizarea sistemelor centralizate de alimentare cu apă în scopul reducerii consumului energetic şi a pierderilor de apă. Rezumatul tezei de doctorat. Universitatea Tehnică din Timişoara. Timişoara, Pagina 8; [296] Voinescu, V. ş.a., Îndrumătorul instalatorilor. Editura Tehnică, Bucureşti, Pagina 254; ; [315] *** Directiva 2006/32/CE a Parlamentului European şi a Consiliului din 5 aprilie 2006 privind eficiena energetică la utilizatorii finali i serviciile energetice i de abrogare a Directivei 93/76/CEE a Consiliului. Jurnalul oficial al Uniunii Europene; [374] *** PE-011/82 Normativ privind calculele comparative tehnico-economice la instalaţiile de producere, transport şi distribuţie a energiei electrice şi termice. Aprobat cu Ordinul M.E.E. nr. 1286/1981 din 19 decembrie Pagina 14; 32; 77-78; 78; 82; [391] *** Strategia Naţională pentru Dezvoltare Durabilă a României. Orizonturi Pagina 11; 12-13; 42; 43-45; 45-46; 46; [417] *** Consiliul Local al Municipiului Ploieşti. Hotărârea privind aprobarea Raportului anual privind starea sistemului şi calitatea serviciului public de alimentare cu energie termică al S.C. Dalkia Termo Prahova S.R.L ; Adresa de internet Fişier hot sistem termice.pdf, pagina 17. [450] *** ISPE Memoriu Dalkia Ploieşti. Adresa de internet Fişier Revizie_Memoriu_Dalkia_Ploiesti.doc, pagina 155; [473] *** RT Conférence consultative du 19 avril Fişier News21_2.pdf. Adresa de internet 6

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