Water at 42-C is sprayed into a stream of air at atmospheric pressure- dry bulb temperature of 40- and a wet bulb temperature of 20- The air leaving the spray humidifier is not saturated- Which of the following statements is true-

Spray water temperature = 42^∘C Dry bulb temperature, DBT = 40^∘C wet bulb temperature, WBT = 20^∘C Here we see that, water spraying temperature is greater ...

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Byju's Answer

Standard X

Physics

Expansion In Liquids and Gases

Water at 42∘C...

Question

Water at $42^{\circ} C$ is sprayed into a stream of air at atmospheric pressure, dry bulb temperature of $40^{\circ}$ and a wet bulb temperature of $20^{\circ}$ . The air leaving the spray humidifier is not saturated. Which of the following statements is true?

Air gets cooled and humidified

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Air gets heated and humidified

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Air gets heated and dehumidified

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Air Gets cooled and dehumidified

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Solution

The correct option is B Air gets heated and humidified
Spray water temperature $= 42^{\circ} C$

Dry bulb temperature, $D B T = 40^{\circ} C$

wet bulb temperature, $W B T = 20^{\circ} C$

Here we see that, water spraying temperature is greater than that of air steam teamperature. So air gets heated and humidified.

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Water at 42∘C is sprayed into a stream of air at atmospheric pressure, dry bulb temperature of 40∘ and a wet bulb temperature of 20∘. The air leaving the spray humidifier is not saturated. Which of the following statements is true?

The correct option is B Air gets heated and humidifiedSpray water temperature =42∘C Dry bulb temperature, DBT=40∘C wet bulb temperature, WBT=20∘C Here we see that, water spraying temperature is greater than that of air steam teamperature. So air gets heated and humidified.

Water at $42^{\circ} C$ is sprayed into a stream of air at atmospheric pressure, dry bulb temperature of $40^{\circ}$ and a wet bulb temperature of $20^{\circ}$ . The air leaving the spray humidifier is not saturated. Which of the following statements is true?