As in previous blog we saw calculations, now we used all tools available i.e. Zeal’s dry bulb and wet bulb temperature, Our data logger and commercial data logger.

Installed 5 units of VA’s data logger between cooling pads and exhaust fan, from cooling pad to exhaust were in following order:

  1. West 4ft (near cooling pad)
  2. East 1ft
  3. Middle 4ft
  4. West 1ft
  5. East 4ft (near exhaust fan)

After installing all 5 devices followings were the reading

Symbols and their meanings:

  1. Dry(Z) – Dry Bulb Temperature of Zeal thermometer
  2. Wet(Z) – Wet Bulb Temperature of Zeal Thermometer and below it’s written Psy(Z)
  3. Psy (Z) – Psychrometric chart used to find relative humidity https://www.holsoft.nl/physics/rhcalc1.htm
  4. VA – Vigyan Ashram Data-Logger temperature and Relative Humidity readings
  5. Eli – ELITECH’S Data-Logger temperature and Relative Humidity readings
  6. Calc – As per previous blog calculation, relative humidity calculated from dry bulb temperature readings of Zeal’s Thermometer, Temperature from VA, Elitech.

Ladder type symbol represent cooling pad, and other end as fan and on each column above the name of each unit outside condition such as temperature, relative humidity and atmospheric pressure is written which is taken from Accuweather app.

Also created an excel sheet based on our previous blog calculation:https://docs.google.com/spreadsheets/d/1QIiAqnZfp1_Pzm9aarqi68ZiwWshgBbC/edit?usp=sharing&ouid=103200189774378173032&rtpof=true&sd=true

Concluding note: Next step would be making a device which shows accurate temperature so on that we can find more accurate relative humidity using the method we saw in previous blog https://vadic.vigyanashram.blog/2024/08/16/if-temperature-outside-is-40c-and-humidity-is-15-and-inside-polyhouse-is-28c-then-what-is-humidity-inside-it/