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Energy an exergy analysis of using liquid air for generating air conditioning and power for domestic buildings.

Number: pap. n. 0094

Author(s) : ABDALQADER A., RAYA Al-D., SAAD M.

Summary

Conventional air conditioning systems consume significant amount of energy particularly during the peak period, and cold energy storage in form of liquid Air (LAir), which is produced using renewable energy sources or surplus electricity at the off-peak period, is anticipated as an alternative technique that provides air conditioning as well as generating power for domestic and/or industrial applications. Therefore, the current work presents energetic and exergetic analysis of a combined cryogenic cycle that fuelled by LAir and uses the building cooling load as heat source. The analysis was carried out from thermodynamic point view using MATLAB combined with REFPROP software. Results showed that, using LAir to provide air conditioning and power is a promising technique leads to save energy and to reduce the peak electricity demands. The cycle the thermal and exergy efficiencies reached 47 % and 59 %, respectively. Considering the two energies output (cooling and power) more than 65 % of the LAir energy production was recovered.

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Pages: 8 p.

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Details

  • Original title: Energy an exergy analysis of using liquid air for generating air conditioning and power for domestic buildings.
  • Record ID : 30021752
  • Languages: English
  • Source: Cryogenics 2017. Proceedings of the 14th IIR International Conference: Dresden, Germany, Mai 15-19, 2017.
  • Publication date: 2017/05/15
  • DOI: http://dx.doi.org/10.18462/iir.cryo.2017.0098

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