Share

IIR document

PCM formulation developments for two residential space cooling phase change slurry concepts.

Number: 0005

Author(s) : DESGROSEILLIERS L., HERNAIZ M., URANGA N., LOPEZ A., LOPEZ S. A., MARTINEZ A., MESONERO I., CARBONELL D.

Summary

Developments in phase change slurry (PCS) applied to residential buildings cooling are presented. These have been devised for grid-interactive load-shifting and PV self-consumption aimed at diurnal load-shifting of heat pump air condition for space cooling loads. Two separate concepts decoupling heat exchange and heat storage capacities and eliminating mechanical scraping of heat exchangers are being investigated: PCM supercooling-crystallization (PCM-SCrys) and PCM emulsion (PCM-E) slurry systems. Both PCS concepts have been developed for space cooling loads in a residential fan coil installation, therefore needing to supply 7-12 °C cooling water via heat exchange. For PCM-SCrys, a non-eutectic, 39 %mass mixture of NaCHO2-water was found to have stable supercooling, suitable crystallization kinetics and ≥18 kWh m-3 net capacity. PCM-E developments resulted in a blend of 30 %mass organic paraffin with surfactant/nucleation promoter to obtain a stable emulsion with 4.4 K supercooling, 500 mPa s viscosity and 17 kWh m-3 net capacity.

Available documents

Format PDF

Pages: 8 p.

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: PCM formulation developments for two residential space cooling phase change slurry concepts.
  • Record ID : 30032359
  • Languages: English
  • Subject: Technology
  • Source: 14th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings:  Paris France, May 29-31, 2024.
  • Publication date: 2024/05/31
  • DOI: http://dx.doi.org/10.18462/iir.pcm.2024.0005

Links


See other articles from the proceedings (40)
See the conference proceedings

Indexing