Investigating Possibility of Using Low Pressure Rotary Fog System to Control the Temperature of Poultry Houses

Document Type : Research Paper

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Abstract

Distribution of water vapor in the atmosphere of the room poultry houses is usually an effective and economical solution to reduce heat stress of the chickens. Experimental studies were conducted in a small saloon located in the farm machinery department of shiraz university. The rotary cup fogging system consisted of a cup which was derived by DC motor. Rotational speed of the cup caused the water distributed into the air in a small particles.The effects of rotary speed of cup (at three levels), cup materials, and the quality of cup inner surface were investigated.
Results revealed that increasing in the rotary speed of cup causes an increase in the relative humidity of the room and decreasing the room temperature. İncreasing in the cup rotary speed caused an increase in the fraction of water which was vaporized (β). The cup material was significantly affect on the in/out temperature ratio. The mentioned ratio was lower for Teflon cup than aluminum one.

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References

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Ashrae, (2003). Handbook HVAC Applications. Chapter 22: Environmental control for animals and plants; chapter 51: Evaporative cooling applications. American Society of Heating, Refrigeration, and Air Conditioning Engineers, Inc., New York
Bottcher R W; Baughman G R; Kesler D J (1989)  Evaporative cooling using a pneumatic misting system. ASAE ,32(2), 671-676
Bottcher R W; Baughman G R; Gates R S; Timmons M B (1991). Characterizing efficiency of misting systems for poultry. Transactions of the ASAE, 34(2), 586–590
Haeussermann A; Hartung E; Jungbluth T; Vranken E; Aerts J M; Berckmans D (2007). Cooling effects and evaporation characteristics of fogging systems in an experimental piggery. Biosystem Engineering, 97, 395-405
Iranian Journal of Biosystems Engineering
Volume 47, Issue 1
May 2016
Pages 147-157

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History

  • Receive Date: 03 February 2014
  • Revise Date: 22 November 2014
  • Accept Date: 13 January 2016

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