I under stand that dry bulb temperature is thereotically ambient temperature, but in reality, after whriling, dry bulb temperature will slightly decrease. So is it still correct to state Ta = Tdb?
Thank you for your comment. There is a minor variation between ambient temperature and dry bulb temperature because of the increased airflow when the hygrometer is being whirled, but please bare in mind the only parameters required when using this method are dry bulb and wet bulb temperature - you don't need to worry about ambient temperature. Whilst the dry bulb and wet bulb temperature are affected by what the ambient temperature is, the ambient temperature is not required. Dry bulb and wet bulb temperature allow you to calculate relative humidity, and from there we can calculate dewpoint temperature. Then, using a surface temperature probe, you measure the surface temperature, which then allows you to calculate the critical Delta T. Delta T and relative humidity are typically the main climatic parameters required to make an informed decision as to whether a coating should be applied. For more information please contact techsales@elcometer.com or visit www.elcometer.com/contact-us to find your local Elcometer distributor.
Hi, In order to calculate Dew Point, we would suggest downloading Elcocalc, our handy app available for free on the Apple and Android app stores. If you have any more questions, please get in touch at support@elcometer.com
I under stand that dry bulb temperature is thereotically ambient temperature, but in reality, after whriling, dry bulb temperature will slightly decrease. So is it still correct to state Ta = Tdb?
Thank you for your comment.
There is a minor variation between ambient temperature and dry bulb temperature because of the increased airflow when the hygrometer is being whirled, but please bare in mind the only parameters required when using this method are dry bulb and wet bulb temperature - you don't need to worry about ambient temperature. Whilst the dry bulb and wet bulb temperature are affected by what the ambient temperature is, the ambient temperature is not required.
Dry bulb and wet bulb temperature allow you to calculate relative humidity, and from there we can calculate dewpoint temperature. Then, using a surface temperature probe, you measure the surface temperature, which then allows you to calculate the critical Delta T. Delta T and relative humidity are typically the main climatic parameters required to make an informed decision as to whether a coating should be applied.
For more information please contact techsales@elcometer.com or visit www.elcometer.com/contact-us to find your local Elcometer distributor.
how to calculate dew point temperature, I only have chart to calculate relative humidity
Hi,
In order to calculate Dew Point, we would suggest downloading Elcocalc, our handy app available for free on the Apple and Android app stores.
If you have any more questions, please get in touch at support@elcometer.com
Thanks for the support 🙏
this is awesome! thank you very much!
I was here for 4:30 . Thanks
Thank you sir
Is the temperature of the water not relevant as well?
Hello,
Water should be used at ambient temperature.
If you require any further information, please don't hesitate to contact techsales@elcometer.com