WHAT IS THE HEAT GAIN FOR CHICKENS IN CHICKEN FARMS 1

[evolpain]

I am trying to design a air conditioning system for a chicken farm about 25000 chickens. But I am in trouble with heat gain for chickens and the ammonium effect about the dirt of chickens. Can anyone help me with this huge farm design. Thanks.

 

[ClydeMule]

Sensible and Latent Heat Production for Animals:

Broilers:

0.22, 84.2, .0009, .9208, 4.1
1.5, 60.8, 0.0108, 11.3, 14.3
1.5, 77.0, 0.0046, 4.8, 16.7
1.5,86.0 0.0154, 16.1, 14.3
2.4, 60.8, 0.0109, 11.4,,13.5
2.4, 66.2, 0.0044, 4.6, 26.3
2.4, 86.0, 0.0243, 25.3, 15.0
3.5, 66.2, 0.0071, 7.4, 31.1
4.4, 66.2, 0.0062, 6.4, 32.8


The values are (From Left to Right):
1. Animal Wight (lbs)
2. Temperature (F)
3. Water Production (lbs of H20 per animal-hour)
4. Sensible Heat BTU/animal-hour
5. Latent Heat BTU/aniaml/hr

This information is from the Midwest Plan Service, Structures and Environment Handbook, 1993, 11th Ed.
Table 633-1 page 633.3
ISBN 0-89373-057-2
It is a pretty handy book, especially if you are designing a farm. Most of the values in the tables are for smaller farms.

I don't really know where to get it. It was a textbook for a class when I was an Ag. Engineering Student at Cal Poly SLO.

I hope this is helpful.

Jeff Johnson
Schreiber Engineering
jjohnson@trueton.com

 

[evolpain]

Thanks ClydeMule for your answer. I am new to hvac applications and I am very happy with your answer. But when I found a 2000000 Btu/h heat gain for my broiler chicken farm I am a bit dissappointed. Is this farm coolable and what would be the economical perspective for this application. What solution do you reccommend to me
I will be glad to hear from you. Thanks

 

[ClydeMule]

evolpain:

Sorry if I led you on, but other than giving those numbers, I am by no means a poultry HVAC expert. Like I mentioned, I got those numbers out of a book left over from when I graduatd a couple of years ago.

However, I do work in the HVAC industry ( for a chiller manufacturer). While in college, I worked in the poultry business. I actually lived at the new (new in 1997) poultry facility on campus at Cal Poly.

To be honest, 25,000 birds is not very big. In CA, a fully automated egg production facility ususaly has 1 to 3 million birds. At a central California Foster Farms facility (broilers,) I think they house 15,000 to 25,000 birds in one building, and have over a dozen of them.

Evaporative Cooling is a the only way I have seen cooling for pouldtry done. The cellulose panels are in one side of the building and large fans 24"-36" daimeter pull air across the barn.

I was at a plant today, with a 50 Ton cooling tower. It was roughly 10' in diamter, 8' tall, with a 1 HP fan. 2,000,000 BTU/HR is 166 tons, so in terms or large evaporative cooling, it is not that off the wall.

Check out:

http://www.kesmist.com/chicken.htm

http://www.ag.ohio-state.edu/~ohioline/aex-fact/0127.html

Have a nice day.

Jeff Johnson