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Energy conservation in ammonia refrigeration system installed for meat processing unit in India.

Number: pap. n. 8

Author(s) : GULANIKAR A. D.

Summary

In this paper we have elaborated the renewal and improvement carried out in ammonia refrigeration plant installed for a meat processing units in India from energy conservation perspective. We selected two out of four refrigeration systems installed in one meat processing unit for revamping as they were 15 year old. Plant consist of reciprocating compressors, atmospheric condensers, inefficient air cooling units (ACU), and was manually operated without any automation. The discharge pressures were high due to presence of air in the system. The approach/methodology selected was, formulation of design parameters, introduce automatic compressor capacity control system, replace existing overdesigned compressor jacket cooling pumps, install air purger, replace existing inefficient atmospheric condensers by S & T condensers, replace old inefficient ACU by efficient ACU, install controls to minimize manual operation and educate manpower for safe/efficient plant operation. Designed and installed heat recovery system using compressor discharge gas and using 85°C waste fluids from rendering plant to generate hot water. As all above revamping work to be executed without any production loss, the author meticulously planned and executed all above in about four years. Similar activities were successfully carried out in two others meat processing units simultaneously for the same group. The plant is running successfully for last two years. Key achievements were, only 15 out 22 No. compressors were required to operate during peak load, 57% reduction achieved in ACU fan motor installed kW, replacement of 20 No. overdesigned jacket cooling pump achieved 114,624 kW/year energy saving and saved 98,000 lit/year furnace oil due to heat recovery.

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Pages: 8 p.

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Details

  • Original title: Energy conservation in ammonia refrigeration system installed for meat processing unit in India.
  • Record ID : 30007626
  • Languages: English
  • Source: 5th Conference on Ammonia Refrigeration Technology. Proceedings: Ohrid, North Macedonia, May 9-11, 2013.
  • Publication date: 2013/05/09

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