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HYLSKÝ, J. FRK, M. STRACHALA, D.
Original Title
Rheological Properties of Heat Transfer Liquids for Solar Thermal Systems
Type
conference paper
Language
English
Original Abstract
This article discusses the rheological properties of heat transfer fluids used in all year round solar systems. Four commercially known media were measured. Two of them were glycols based media and two of them alternative heat transfer fluids based on glycerol. Parameters of viscosity and density were measured in a wide range of temperature. Measured dependencies were mathematically approximated by Vogel-Fulcher-Tammanovou equation that very accurately describes their shape. The temperature coefficient of volumetric expansion β is another parameter of heat-transfer fluids described in this article. β plays a very important role in the construction of the solar system. The last parameter determining the year round operation is the freezing point. Freezing point was measured by the cryoscopic methods.
Keywords
Heat transfer fluids, solar systems,Vogel-Fulcher-Tammanovou equation
Authors
HYLSKÝ, J.; FRK, M.; STRACHALA, D.
Released
7. 12. 2016
Publisher
ECS Transaction
Location
USA
ISBN
978-80-214-5384-5
Book
17th International Conference on Advanced Batteries, Accumulators and Fuel Cells (ABAF 2016)
1938-5862
Periodical
ECS Transactions
Year of study
74
Number
1
State
United States of America
Pages from
207
Pages to
212
Pages count
6
BibTex
@inproceedings{BUT129446, author="Josef {Hylský} and Martin {Frk} and Dávid {Strachala}", title="Rheological Properties of Heat Transfer Liquids for Solar Thermal Systems", booktitle="17th International Conference on Advanced Batteries, Accumulators and Fuel Cells (ABAF 2016)", year="2016", journal="ECS Transactions", volume="74", number="1", pages="207--212", publisher="ECS Transaction", address="USA", doi="10.1149/07401.0207ecst", isbn="978-80-214-5384-5", issn="1938-5862" }