OSUVA - Selaus tekijän "Mäkiranta, A." mukaan - Osuva

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A preliminary test for using a borehole as cool storage

Martinkauppi, J.B.; Syrjälä, T.; Mäkiranta, A.; Hiltunen, E. (Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2020)
conferenceObject

This paper describes a preliminary test for using a borehole as a cool storage. The testing was done using a dry borehole in Vaasa area. The cooling was done using a special trailer in period of 9 days after which the ...
Seasonal temperature variation in heat collection liquid used in renewable, carbon-free heat production from urban and rural water areas

Hiltunen, E.; Martinkauppi, J.B.; Mäkiranta, A.; Rinta-Luoma, J.; Syrjälä, T. (Estonian University of Life Sciences, 2015)
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A renewable energy source called sediment energy is based on heat collection with tubes similar to those used in ground energy and is installed inside a sediment layer under water body. In this paper, an investigation of ...