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Sustainability 2016, 8(7), 637; doi:10.3390/su8070637

Experimental Study of a Small Scale Hydraulic System for Mechanical Wind Energy Conversion into Heat

Department of Building Energy Systems, Kaunas University of Technology, Kaunas 51367, Lithuania
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Academic Editors: Joanne Patterson and Derek Sinnott
Received: 17 May 2016 / Revised: 29 June 2016 / Accepted: 30 June 2016 / Published: 20 July 2016
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Abstract

Significant potential for reducing thermal energy consumption in buildings of moderate and cold climate countries lies within wind energy utilisation. Unlike solar irradiation, character of wind speeds in Central and Northern Europe correspond to the actual thermal energy demand in buildings. However, mechanical wind energy undergoes transformation into electrical energy before being actually used as thermal energy in most wind energy applications. The study presented in this paper deals with hydraulic systems, designed for small-scale applications to eliminate the intermediate energy transformation as it converts mechanical wind energy into heat directly. The prototype unit containing a pump, flow control valve, oil tank and piping was developed and tested under laboratory conditions. Results of the experiments showed that the prototype system is highly efficient and adjustable to a broad wind velocity range by modifying the definite hydraulic system resistance. Development of such small-scale replicable units has the potential to promote “bottom-up” solutions for the transition to a zero carbon society. View Full-Text
Keywords: low carbon technologies; energy efficient buildings; building heating; wind energy; heat generation; hydraulic system low carbon technologies; energy efficient buildings; building heating; wind energy; heat generation; hydraulic system
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Zdankus, T.; Cerneckiene, J.; Jurelionis, A.; Vaiciunas, J. Experimental Study of a Small Scale Hydraulic System for Mechanical Wind Energy Conversion into Heat. Sustainability 2016, 8, 637.

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