Hvac Indoor Wet Bulb

Wet bulb temperature and enthalpy of air run very close to right along with one another so 63 wet bulb air will have an enthalpy of 28 3 btu lb at typical conditions and often we use wet bulb as a proxy for enthalpy.

Hvac indoor wet bulb.

28 6 can make a significant difference when it is multiplied out over a large air mass. Indoor wet bulb what are you guys using to test idwb. Indoor wet bulb measurement is useful for figuring superheat subcool and other hvac. When the air comes in contact with the wet cloth it absorbs some moisture and gives up some heat sue to which the temperature of the air reduces.

In the chart above you can see that a 62 8 degree wet bulb mass of air contains approximately 28 4 btus per lb. Imo wet bulb in hvac work is more useful when dealing with evaporative cooling concerns such as with cooling towers and swamp coolers. The wet bulb temperature is the adiabatic saturation temperature. A wet bulb thermometer indicates a temperature close to the true thermodynamic wet bulb temperature.

Kung fu maintenance demonstrates how to test indoor wet bulb temperature idwb measure for air conditioners. Clo clothing and thermal insulation clo is used as a measure of clothes thermal insulation. Temperature of the ordinary air measured by the thermometer when it is covered by wet cloth or wick is called as the wet bulb temperature commonly referred to as wbt. The wet bulb temperature is defined as the temperature of a parcel of air cooled to saturation 100 relative humidity by the evaporation of water into it with the latent heat supplied by the parcel.

Absolute humidity moisture. I need something smaller than my blue box 05 08 2016 11 14 pm 2. Wet bulb temperature can be measured by using a thermometer with the bulb wrapped in wet muslin. Air conditioning air conditioning systems heating cooling and dehumidification of indoor air for thermal comfort.

The tricky part is reading at this extreme level of resolution because 28 4 vs. Dew point is more useful for controlling indoor humidity which is a large part of what we re after with air conditioning.