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Assessment of improvement in heat exchangers behaviour using ice slurry as secondary refrigerant

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Ref CV 124 Comunicacion Boulder Colorado jun 2009.pdf (454.0Kb)
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URI: https://thermosymposium.org/archive/symp17/pdf/Abstract_18.pdf
URI: http://hdl.handle.net/10317/8432
ISBN: 978-2-913149*70-0
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Author
Illán Gómez, Fernando; Viedma Robles, Antonio
Knowledge Area
Mecánica de Fluidos
Sponsors
This research has been partially financed by the project DPI2007-66551-C02-01 grant from the “D.G.I., Mº de Ciencia y Tecnología”, the project 2I05SU0029 grant of the “S. G. de la Consejería de Educación y Cultura de la C.A. de la Región de Murcia” and the HRS Spiratube Company, Murcia (Spain).
Publication date
2009
Publisher
International Institute of Refrigeration
Bibliographic Citation
Illán, F., & Viedma, A. (2009). Assessment of improvement in heat exchangers behaviour using ice slurry as secondary refrigerant. En: 3rd IIR Conference on Thermophysical Properties and Transfer Processes of Refrigerants, Boulder, CO, 2009 Boulder, CO, USA, 23-26 Jun 2009.
Keywords
Ice slurry
Pressure drop
Heat transfer
Heat exchanger
Abstract
Ice slurIce slurry is well known as a biphasic secondary refrigerant that presents several potential advantages compared to single phase secondary refrigerants. These potential advantages can be summarized in the ability to use the thermal storage, and the high cooling capacity given by the latent heat. Theoretically, these features must allow important energy savings in secondary refrigerant distribution loop. An accurate evaluation of these energy savings requires knowledge of the thermal and rheological behaviour of the refrigerant studied. Based on the experimental model developed by the authors for brine-based ice slurry, a theoretical analysis of heat exchanger behaviour is presented in this work in order to find out the potential energy savings associated with its use. The influence of ice concentration, mass flow rate, heat exchanger length and pipe outer wall temperature over pumping power and heat transfer rate is studied. The ratio between heat transfer rate and pumping power ...
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