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EcoCool in Poultry Application

August 27, 2011

 

"How excessive temperature affects production of eggs in poultry farms/hatcheries.”

Thermal conditions, air quality, lighting, noise and crowding are important in designing structures for poultry. Thermal environment influences heat dissipation by poultry. Air quality, noise and space constraint can affect the health and/or productivity of poultry.

Poultry performance and their conversion of feed to eggs are closely tied to the thermal environment. The optimal thermal environment-in terms of an effective temperature that integrates the effects of dry-bulb temperature, humidity, air movement, and radiation – is less important to the designer then the range of conditions that provides acceptable animal performance, efficiency, well being and economic return for a given species, Research has found that the zone of nominal losses corresponds to the welfare plateau (i.e.Welfare is enhanced by maintaining environmental conditions within the zone of nominal losses). Egg production by mature poultry also shows an optional thermal environment zone, or zone of nominal losses.

Hot weather can have a severe impact on poultry performance. Poultry producers should realize that high temperatures can affect production efficiency long before survival becomes a concern. Heat stress begins when ambient temperature climbs above 77°F., and is readily apparent above 80°F.

When a bird begins to pant, physiological changes have already started within a bird's body to dissipate excess heat. At this point, anything that you do to help birds remain comfortable will help maintain optimum growth rates, hatchability, egg size, egg shell quality, and/or egg production.

Equipment and Ventilation Techniques Used to Reduce Heat Stress

During the summer months when the temperature and humidity are high, proper poultry house ventilation is vital to ensure the necessary removal of heat and the continued productivity of the flock. There are a number of components of poultry house ventilation systems.

Most ventilation systems can provide an adequate in-house environment when properly managed. If the system design and management fails to satisfy the flock's ventilation needs, stale and contaminated air can build up in the poultry house. Stale air and contaminants, including ammonia, moisture, carbon dioxide and dust, can result in stress and depressed performance. Stress may impair the immune system and increase susceptibility to disease problems. To reduce stale air and contaminant problems, the producer must control air temperature, air movement, and relative humidity through good ventilation management.

Evaporative Cooling with Ventilation

Evaporative cooling (cooling air by evaporating water) uses heat from the air to vaporize water. This method increases humidity but lowers air temperatures in poultry houses. Evaporative cooling can be highly effective specially in hot & dry climates when the differencial between drying & wetable temperature is highest.

The Ecocool Evaporative Cooling Pads can be used on continuous basis which allows effective cooling and minimal water carry-over as supposed to using foggers.

The Ecocool Evaporative Cooling Pads (ECP), made of cellulose paper is engineered from cross-sectional specially treated flute media capable of absorbing and retaining water to provide the maximum cooling efficiencies. The cellulose media is treated with stiffening and rot-resisting agents to increase it's useful life. The geometry of the cellulose media provides cooling without any water carryover as long as the air velocity through the pads is less than the recommended maximum.

The ECP media is treated with anti-rot and rigidify resins. The media is cross-corrugated to maximize the mixing of air and water.

Saturation effectiveness ranging from 50% to 98% can be achieved depending upon air velocity and depth of the cooling pad.

Air flows horizontally while the re-circulating water flows vertically down the media surface. The water is collected at bottom of the bed by the water gutter and circulated again by a pump.

Evaporative Cooling Systems

Evaporative cooling has been used to ventilate hatcheries since the late 1960’s. The coolers are usually roof mounted and operate in conjunction with wall exhaust fans.

Benefits of Evaporative Cooling

  • Evaporative cooling is the most energy efficient method of cooling a hatchery.
  • These systems are environmentally safe.
  • The systems cool with dry air moving over wet pads. The moisture in the pads evaporates and the air gives up its heat.
  • The more water that is absorbed into the air, the lower is the temperature with the objective being to get the dry bulb temperature as close to the wet bulb temperature. The drop in temperature from these units varies with the relative humidity.
  • These systems move about six times more fresh air than any air conditioning system. They can provide adequate conditions in the incubator, hatch and chick rooms.

Hatchery Humidity Systems

Proper humidity levels are needed in each hatchery area.

  • In the egg room, proper humidity levels will prevent egg dehydration.
  • In the incubator and hatch rooms proper humidity levels must be provided for the incubation equipment. Proper room conditions will allow the incubation equipment to function more easily. If the incubation equipment has to build its own humidity, the machine heaters will operate longer. This greatly increases energy consumption as the heaters dry the air resulting in the humidity operating more frequently. When the heaters operate, the fresh air entering the machines is reduced. This can lead to increased embryonic mortality for the eggs past 10 days of incubation.
  • Adequate humidity in the chick processing areas will prevent chick dehydration. This is especially important if the chicks are held overnight.

Evaporative Cooling is the growing buzzword for comfort cooling

DRI is the manufacturer of superior Evaporative Cooling Pads in India. The EcoCool pads are being manufactured on a sophisticated, automated production line using customized raw materials/substrates and special grade chemicals. They are exported to USA, Australia and UAE.

DRI EcoCool Pads are ideal for:

  • Poultry farms, hatcheries, breeding areas, livestock and dairy farms
  • Green houses, mushroom farming, agrihot and floriculture
  • Commercial and industrial areas

Features and Benefits

EcoCool has many outstanding features, viz., a high structural strength, high wettability, extremely low pressure drops.

Effective cooling: Lowers temperature at minimal energy costs.

Cellulose base: Engineered from cross sectional, specially treated fluted media capable of absorbing and retaining water to provide maximum cooling efficiency.

High Productivity: Allows higher cooling with lower air volume; pads are over 80% efficient.

Longer life: Ecocool is synthesized with specialized antirot chemicals.

Rigid structure: The specially engineered fluted structure of Ecocool prevents sagging and resists clogging.

Lowest Maintenance: Ecocool has a unique structure that minimizes buildup of dust and other dirt on it.

More effective: Ecocool can handle treble the air velocity over the same area, compared to any other type of pads.

Plus EcoCool can be customized for special applications and is compatible with all air handling and conditioning systems.

Retrofits easily.

 

 
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