What are the benefits of measuring relative humidity in a poultry house ?
Measuring relative humidity (RH) has long been an important factor in poultry production. In the past, especially in open houses, RH measurement was mainly used as a tool to analyze management problems. Together with temperature, it was used to calculate the Heat Stress Index (HSI), which indicates the level of heat stress experienced by birds.
When the Heat Stress Index is high, bird growth performance decreases.
When it reaches a critical level, it can even lead to bird mortality.
This is because both temperature and humidity directly affect the bird’s ability to dissipate heat.
From open houses to closed houses
Today, most farms use closed houses or EVAP cooling systems. In these systems, the Heat Stress Index alone is not always sufficient, because it considers only temperature and humidity which works well in still air conditions.
However, in closed houses, air velocity becomes another critical factor. At the same temperature and humidity, increased airflow makes birds feel cooler due to the wind chill effect (as long as the air temperature is lower than the bird’s skin temperature).
This means that in EVAP houses, bird comfort depends not only on temperature and humidity, but also on air speed.
Is measuring humidity still necessary ?
Yes, measuring relative humidity remains essential, but its role has shifted. Today, it is mainly used for controlling cooling pads and fan operation.
The most effective point to install RH sensors is outside the house, near the cooling pad, since external humidity directly affects cooling efficiency.
For every 1°C drop in temperature, relative humidity increases by about 5%.
If outside RH exceeds 80%, the water pump for the cooling pad must stop, and fans must run more intensively to remove excess humidity and increase the wind chill effect.
In countries with very low ambient humidity, poultry houses often face problems with respiratory diseases, so humidifiers are needed to add moisture to the air.
In contrast, in tropical countries like Thailand, the challenge is usually excess humidity, which is more difficult to control.
HUMIDITY SENSOR
• Input Voltage: 12-24 VDC
• Output Voltage: 1-3 VDC
• Current Consumption : 10 mA
• Humidity Range: 0-100 %RH
• Accuracy: +5%
• Operating Temperature: -20 TO 60°C .
• Output Impedance: 1K Ohms
• Max. Cable Length: 150 Meters
#TempView #Controller #temp #Rtron #Sensor #Alarm #smartfarm #Dimmer
What are the benefits of measuring relative humidity in a poultry house ?
Measuring relative humidity (RH) has long been an important factor in poultry production. In the past, especially in open houses, RH measurement was mainly used as a tool to analyze management problems. Together with temperature, it was used to calculate the Heat Stress Index (HSI), which indicates the level of heat stress experienced by birds.
When the Heat Stress Index is high, bird growth performance decreases.
When it reaches a critical level, it can even lead to bird mortality.
This is because both temperature and humidity directly affect the bird’s ability to dissipate heat.
From open houses to closed houses
Today, most farms use closed houses or EVAP cooling systems. In these systems, the Heat Stress Index alone is not always sufficient, because it considers only temperature and humidity which works well in still air conditions.
However, in closed houses, air velocity becomes another critical factor. At the same temperature and humidity, increased airflow makes birds feel cooler due to the wind chill effect (as long as the air temperature is lower than the bird’s skin temperature).
This means that in EVAP houses, bird comfort depends not only on temperature and humidity, but also on air speed.
Is measuring humidity still necessary ?
Yes, measuring relative humidity remains essential, but its role has shifted. Today, it is mainly used for controlling cooling pads and fan operation.
The most effective point to install RH sensors is outside the house, near the cooling pad, since external humidity directly affects cooling efficiency.
For every 1°C drop in temperature, relative humidity increases by about 5%.
If outside RH exceeds 80%, the water pump for the cooling pad must stop, and fans must run more intensively to remove excess humidity and increase the wind chill effect.
In countries with very low ambient humidity, poultry houses often face problems with respiratory diseases, so humidifiers are needed to add moisture to the air.
In contrast, in tropical countries like Thailand, the challenge is usually excess humidity, which is more difficult to control.
HUMIDITY SENSOR
• Input Voltage: 12-24 VDC
• Output Voltage: 1-3 VDC
• Current Consumption : 10 mA
• Humidity Range: 0-100 %RH
• Accuracy: +5%
• Operating Temperature: -20 TO 60°C .
• Output Impedance: 1K Ohms
• Max. Cable Length: 150 Meters
#TempView #Controller #temp #Rtron #Sensor #Alarm #smartfarm #Dimmer
What are the benefits of measuring relative humidity in a poultry house ?
Measuring relative humidity (RH) has long been an important factor in poultry production. In the past, especially in open houses, RH measurement was mainly used as a tool to analyze management problems. Together with temperature, it was used to calculate the Heat Stress Index (HSI), which indicates the level of heat stress experienced by birds.
When the Heat Stress Index is high, bird growth performance decreases.
When it reaches a critical level, it can even lead to bird mortality.
This is because both temperature and humidity directly affect the bird’s ability to dissipate heat.
From open houses to closed houses
Today, most farms use closed houses or EVAP cooling systems. In these systems, the Heat Stress Index alone is not always sufficient, because it considers only temperature and humidity which works well in still air conditions.
However, in closed houses, air velocity becomes another critical factor. At the same temperature and humidity, increased airflow makes birds feel cooler due to the wind chill effect (as long as the air temperature is lower than the bird’s skin temperature).
This means that in EVAP houses, bird comfort depends not only on temperature and humidity, but also on air speed.
Is measuring humidity still necessary ?
Yes, measuring relative humidity remains essential, but its role has shifted. Today, it is mainly used for controlling cooling pads and fan operation.
The most effective point to install RH sensors is outside the house, near the cooling pad, since external humidity directly affects cooling efficiency.
For every 1°C drop in temperature, relative humidity increases by about 5%.
If outside RH exceeds 80%, the water pump for the cooling pad must stop, and fans must run more intensively to remove excess humidity and increase the wind chill effect.
In countries with very low ambient humidity, poultry houses often face problems with respiratory diseases, so humidifiers are needed to add moisture to the air.
In contrast, in tropical countries like Thailand, the challenge is usually excess humidity, which is more difficult to control.
HUMIDITY SENSOR
• Input Voltage: 12-24 VDC
• Output Voltage: 1-3 VDC
• Current Consumption : 10 mA
• Humidity Range: 0-100 %RH
• Accuracy: +5%
• Operating Temperature: -20 TO 60°C .
• Output Impedance: 1K Ohms
• Max. Cable Length: 150 Meters
#TempView #Controller #temp #Rtron #Sensor #Alarm #smartfarm #Dimmer
