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Optimal fan speed and compression ratio of an air-condensed vapor-compression ammonia recycling system.

Author(s) : LU W., MENG Z., SUN Y., et al.

Type of article: Article, IJR article

Summary

In the technology of liquid ammonia modification, the ammonia is recycled by compression and condensation. To minimize the energy-consumption of ammonia recycling system, compression ratio and fan speed are optimized. Thermodynamic models for the compressor and evaporative condenser are developed respectively. Mathematical equations are given to determine the optimal compression ratio and the corresponding fan speed ratio. To solve the equations, a numerical algorithm is proposed. By controlling the fan speed, the matching of ammonia mass flow rate and air flow rate can be optimized, which brings about the minimal energy-consumption. When the wet-bulb temperature is 22?°C, the system energy-consumption could be saved by 10.8–12.9% under optimal compression ratio and fan speed.

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Pages: 319-329

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Details

  • Original title: Optimal fan speed and compression ratio of an air-condensed vapor-compression ammonia recycling system.
  • Record ID : 30017780
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 67
  • Publication date: 2016/07

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