Question

Сухой термометр показывает 20 градусов, а смоченный 15.5. Найти относительную влажность воздуха.

Answer 1

По психрометрической таблице и найдем
дельта t=20-16=4 градуса
На пересечении по горизонтали показания сухого термометра(возьмем, не 15.5 градусов, а 16 (т.к. при округлении 15.5=16)) и по вертикали 4 градусов получается значение 62% или 0,62

Answer 2

Calculation of Relative Humidity

To calculate the relative humidity, we need to compare the actual amount of water vapor in the air (as indicated by the wet-bulb temperature) to the maximum amount of water vapor the air can hold at that temperature (as indicated by the dry-bulb temperature).

Given that the dry-bulb temperature is 20 degrees Celsius and the wet-bulb temperature is 15.5 degrees Celsius, we can calculate the relative humidity using the following formula:

Relative Humidity = (Wet-Bulb Temperature / Dry-Bulb Temperature) * 100

Substituting the given values, we get:

Relative Humidity = (15.5 / 20) * 100

Calculating this, we find that the relative humidity is approximately 77.5%.

Please note that this calculation assumes that the wet-bulb temperature is measured accurately and that the air pressure remains constant. Additionally, this calculation assumes that the air is saturated with water vapor at the wet-bulb temperature.