ΒΕΛΤΙΣΤΗ ΕΚΜΕΤΑΛΛΕΥΣΗ ΓΕΩΘΕΡΜΙΚΟΥ ΠΕΔΙΟΥ ΧΑΜΗΛΗΣ ΕΝΘΑΛΠΙΑΣ ΜΕ ΣΥΣΤΗΜΑ ΠΗΓΑΔΙΩΝ

THIS THESIS DEALS WITH HEAT AND MASS TRANSFER, WHICH TAKES PLACE INSIDE AQUIFERS, DURING THEIR EXPLOITATION AS LOW ENTHALPY GEOTHERMAL RESOURCES BY MEANS OF SYSTEM OF WELLS. THE THESIS CONSISTS OF 8 CHAPTERS. THE FIRST REFERS TO GEOTHERMAL ENERGY IN GENERAL. THE SECOND DEALS WITH THE HEAT TRANSFER MECHANISMS AND THE EQUATIONS DESCRIBING WATER AND HEAT TRANSFER INSIDE AQUIFERS. IN CHAPTER THREE THE ANALYTICAL SOLUTIONS FOR THE HYDRAULIC AND THE THERMAL PART OF THE PROBLEM ARE PRESENTED, WHILE IN CHAPTER FOUR NUMERICAL METHODS, NAMELY FINITE DIFFERENCES, FINITE ELEMENTS AND BOUNDARY ELEMENTS ARE OUTLINED. LAGRANGIAN SCHEMES FOR THE SOLUTION OF THE THERMAL PROBLEM ARE ALSO DISCUSSED. CHAPTER FIVE INCLUDESEXTENSIVE DESCRIPTION OF PROGRAM LEGE, CONSISTING OF A COMBINATION OF A LAGRANGIAN AND AN EULERIAN SCHEME, WHICH SOLVES THE THERMAL PROBLEM. DESCRIPTION STARTS BY DATA INPUT AND STEP BY STEP PROCEEDS TO RESULT OUTPUT. ASSUMPTIONS AND LIMITATIONS OF THE PROGRAM ARE STATED AND ITS EVALUATION, BY COMPARISON TO ANALYTICAL SOLUTIONS, IS PRESENTED. IN CHAPTER SIX APPROXIMATE CALCULATION OF THE MAXIMUM FLOW-RATE OF A DOUBLET (WHICH IS THE "ESTABLISHED" WELL SYSTEM) IS ILLUSTRATED, BASED ON THE LIMITATIONS IMPOSED BY BREAKTHROUGH TIME AND WATER LEVEL DRAWDOWN. CHAPTER SEVEN INCLUDES A DETAILED STUDY OF DOUBLET AND QUADRUPLET, LEADING TO A COMPARISON BETWEEN THEM. FINALLY IN CHAPTER EIGHT AN APPLICATION EXAMPLE AT MYGDONIA BASIN IS GIVEN. THE THESIS INCLUDES ALSO 4 ANNEXES. THE FIRST GIVES THE ECONOMIC ASPECTS OF THE USE OF RENEWABLE ENERGY SOURCES, THE SECOND INCLUDES AN EXTENSIVE DESCRIPTION OF THE BOUNDARY ELEMENT METHOD, WHILE THIRD AND FOURTH SUMMARIZE ADIMENSIONAL NUMBERS AND ENERGY UNITS RESPECTIVELY.

Grantor dc:publisher

Aristotle University Of Thessaloniki (AUTH)

Year dc:date

1986

Authors dc:creator

• Κατσιφαράκης, Κωνσταντίνος
• Katsifarakis, Konstantinos

• ΑΡΙΘΜΗΤΙΚΑ ΣΧΗΜΑΤΑ EKLER
• ΑΡΙΘΜΗΤΙΚΑ ΣΧΗΜΑΤΑ LAGRANGE
• ΑΡΙΘΜΟΣ PECLET
• ΔΙΠΟΔΟ
• ΕΞΙΣΩΣΗ ΑΓΩΓΗΣ-ΣΥΝΑΓΩΓΗΣ
• ΣΥΣΤΗΜΑ ΠΗΓΑΔΙΩΝ
• ΧΡΟΝΟΣ ΔΙΑΝΥΣΗΣ
• BREAKTHROUGH TIME
• CONVECTION-CONDUCTION EQUATION
• DOUBLET
• EULERIAN NUMERICAL SCHEMES
• LAGRANGIAN NUMERICAL SCHEMES
• PECLET NUMBER
• SYSTEM OF WELLS
• Επιστήμες Μηχανικού και Τεχνολογία
• Επιστήμη Πολιτικού Μηχανικού
• Engineering and Technology
• Civil Engineering

Language dc:language

gre

Identifier

10.12681/eadd/0525

OAI identifier oai:identifier

oai:10442/0525