SUNConferences, SAIIE NeXXXt

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Development and Performance Evaluation of a Humidity Measurement Bench
Ilesanmi Afolabi Daniyan, Khumbulani Mpofu, Adefemi Adeodu, Idris Kadri

Last modified: 2019-08-21


This work focuses on the measurement of humidity and airflow to ensure a comfortable atmospheric environment for both humans and machineries. The aim is to develop a bench that traps air which is blown out from a duct fan while air flow and the amount of water vapour in the air (humidity) is measured using a hygrometer, anemometer and a manometer. A bench that taps air and would effectively give a result with the accuracy of a precision thermometer for dry and wet bulb temperature calibration was developed. The materials employed for the development include; galvanized steel sheets which was folded into a rectangular box for the housing of the measuring instruments and square pipes used for the frame and legs of the bench. The accuracy of the thermometer is ±0.05 °C and resolution is 0.01 °C. The findings of this study were confirmed using a temperature probe and measurement indicator. Test results revealed that effects of different parameters of the psychrometer in the measurement accuracy and stability of relative humidity.


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