Poultry Judging Practice Test

Using a wet pad cooling system can lower incoming air into a barn by how many degrees of the outside wet bulb temperature?

1. 1

2. 2

3. 3

4. 4

The correct answer is: 3

Using a wet pad cooling system effectively utilizes the process of evaporative cooling to lower the temperature of incoming air into a barn. This system works by passing warm air through specially designed pads that are kept moist. As the warm air moves through these wet pads, water evaporates, absorbing heat from the air and thereby lowering its temperature. Typically, the temperature reduction achieved through a wet pad cooling system can be approximately 3 degrees Fahrenheit below the outside wet bulb temperature. This specific value, 3 degrees, is significant because it reflects the average performance of these systems under optimal conditions, taking into account factors such as humidity, air flow rate, and the effectiveness of the pads used. It is this ability to lower the temperature by around 3 degrees that makes wet pad cooling an essential technique in poultry production, particularly in managing heat stress in birds. This can lead to improved animal welfare, health, and productivity.