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https://hdl.handle.net/20.500.14279/4100
Τίτλος: | An Analysis of Heat Flow Through a Borehole Heat Exchanger Validated Model | Συγγραφείς: | Florides, Georgios A. Pouloupatis, Panayiotis Christodoulides, Paul |
metadata.dc.contributor.other: | Πουλουπάτης, Παναγιώτης Χριστοδουλίδης, Παύλος Φλωρίδης, Γεώργιος Α. |
Major Field of Science: | Engineering and Technology | Field Category: | Electrical Engineering - Electronic Engineering - Information Engineering | Λέξεις-κλειδιά: | Mathematical models;Heat exchangers;Heat--Convection;Computer simulation;Thermal conductivity | Ημερομηνία Έκδοσης: | Απρ-2012 | Πηγή: | Applied Energy, 2012, vol. 92, pp. 523-533 | Volume: | 92 | Start page: | 523 | End page: | 533 | Περιοδικό: | Applied Energy | Περίληψη: | Earth heat exchangers are essential parts of the ground-source heat pumps and the accurate prediction of their performance is of fundamental importance. This paper presents the development and validation of a numerical model for the simulation of energy flows and temperature changes in and around a borehole heat exchanger when a fluid circulates through a U-tube. Based on the time-dependent convection-diffusion equation, the FlexPDE software package is employed to solve the resulting boundary value problem that model a heat exchanger. First, the mathematical model is validated through a comparison with data obtained from experiments with real borehole set-ups in Cyprus. Then the validated model is used to study the heat flow and the temperature variation in the heat-exchanger. Finally conclusions are extracted on how various parameters like the U-tube diameter, the variation of the ground thermal conductivity and specific heat and the borehole filling material affect the temperature of the inlet and outlet fluid. | URI: | https://hdl.handle.net/20.500.14279/4100 | ISSN: | 03062619 | DOI: | 10.1016/j.apenergy.2011.11.064 | Rights: | © 2011 Elsevier Ltd. | Type: | Article | Affiliation: | Cyprus University of Technology | Publication Type: | Peer Reviewed |
Εμφανίζεται στις συλλογές: | Άρθρα/Articles |
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