Data required resolving the protocol
Work 1. Measurement of the average air temperature in the room.
The place of measuring
at the window
in the middle of
at the inner wall
The level of measuring from the floor, m
0,2
1,5
23
24
23,5
24,5
24
25
Work 2. Determination of atmospheric pressure.
Air pressure ___98,8_______kPa.
1 kPa = 7,5 mm Hg
Work 3. Determination of the absolute humidity.
Temperature of the dry thermometer _______24_______________°С (Т1).
Temperature of the wet thermometer ________21______________°С (Т2).
Barometric pressure ______741____________ mm Hg (В)
Maximum pressure of water vapour at the wet thermometer’s temperature (F)
_____18,630___________ mm Hg
Work 4. Calculation of the relative humidity.
Absolute humidity ________from previous work 3 ____________ mm Hg. (K)
Maximum humidity at dry bulb ____22.377________ mm Hg
Relative humidity _________________________________%
Work 5. Measuring of air speed movement with a help of catathermometer.
Cooling time catathermometer on ____3_____ ° C:
1) __98____ seconds.
2) ___100___ seconds.
1
3) __102____ seconds.
The average cooling catathermometer (a) on 1 °C for __100____ seconds.
Catathermometer factor (F) = ______603______________
The amount of cooling: H = 6.03
The average temperature in the room ___24____ ° C.
The difference between 36,5 ° and the temperature of air (Q) _12.5___ ° C.
Work 6. Measuring air movement speed using anemometer.
The results of the counter of the anemometer before measuring _7844 turns (a).
The results of the counter of the anemometer after measuring _8844 turns (b).
Time of counting __180___________ seconds (T).
The number of anemometer turns per time unit: Turns/sec.= (b-a)/T=__4.8____ ,
that in correspondence to calibration diagram is __0.25______ m/sec.
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