Articles Posted in the " Psychrometry " Category

  • psychrometric chart

    psychrometric chart

    psychrometric chart  Keywords:  Construction-dry – wet-dew point temperature- specific-relative humidity- specific enthalpy- volume-psychrometric processes Construction Refer Fig. is a Psychrometric chart. Dry bulb temperature is the abscissa (along x-axis) and specific humidity is the ordinate (along y-axis) at 1 atmospheric pressure. It contains the following lines: Vertical lines for dry bulb temperature Horizontal lines for […]


  • psychrometry

    psychrometry

      Psychrometry  Keywords:dry,wet and dew point temperatures, specific humidity, Relative humidity Definition Psychrometry is the study of the properties of moist air (dry air + water vapor). It includes the study of various temperatures, humidities and psychrometric processes. 1.Dry air is a mixture of gases (mainly oxygen and nitrogen) which does not contain water vapor. […]


  • * Short Interview Questions on refrigeration and air conditioning

    * Short Interview Questions on refrigeration and air conditioning

    Short Interview Questions on refrigeration and air conditioning What is a grand sensible heat factor? What is an apparatus dew point? What is an effective room sensible heat factor? What is a sensible heat load? What is a latent heat load? What is effective temperature? What is meant by multi-evaporator refrigeration? Where does it used […]


  • *Psychrometry and air conditioning: List of short Interview Questions

    *Psychrometry and air conditioning: List of short Interview Questions

    *Psychrometry and air conditioning: List of Short Interview Questions What is a specific humidity? What is specific volume of moist air? What is an adiabatic saturation? What happens to relative humidity if the dry bulb temperature increases? What is a reference temperature used in solving air conditioning problems? What are the various types of air […]



  • *Short Interview Question Answers on Psychrometry

    *Short Interview Question Answers on Psychrometry

    Short Interview Question Answers on Psychrometry Q. Explain the physical significance of By Pass Factor for a heating coil. Heating coils: air is not heated to  coil temperature as some air do not come in physical contact with the coil and is said to be by passed. If t1 is temperature of air entering the heating […]



  • *  Short Interview Question Answers on Psychrometry

    * Short Interview Question Answers on Psychrometry

     Short Interview Question Answers on Psychrometry   Q. Define SHF, By pass factor(BPF), Contact factor and apparatus Dew point. SHF=(SHL/(SHL+LHL)) BPF for a cooling coil =temperature drop not achieved/max tempe drop achievable = (t2—t3)/(t1—t3) Where  t1 is temperature of hot air entering the cooling coil t2 is the of air after the cooling coil t3  […]


  • * Short Interview Question Answers on Psychrometry

    * Short Interview Question Answers on Psychrometry

     Short Interview Question Answers on Psychrometry Keywords: dry – wet – dew -apparatus temperature  Define dry bulb temperature, wet bulb temperature, dew point temperature. Dry bulb temperature,  tdb, It is temperature of the air in a space measured by an ordinary thermometer. Wet Bulb Temperature, twb, It is temperature read from the stem of a thermometer […]