From the trivia question Environment friendly refrigerant R134a is used in the new generation domestic refrigerators. Its chemical formula is....
Fri, 19 Dec 2008 11:22:09 -0000
i knew that because R134a is ECO-friendly refrigerant na…...
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From the trivia question Water at 42°C is sprayed into a stream of air at atmospheric pressure, dry bulb temperature of 40°C and a wet bulb temperature of 20°C. The air leaving the spray humidifier is not saturated. Which of the following statements is true?
Fri, 19 Dec 2008 11:20:30 -0000
because of low moisture content in the air, the air is humidified by the spray humidifier
