Articles Posted in the " Compressors " Category

  • Refrigeration -fill in the blanks-compressor

    Refrigeration -fill in the blanks-compressor

    Refrigeration -fill in the blanks-compressor           Compressor using a belt drive in a refrigeration system is called—————.  In a refrigeration system, compressor  is called the ———–of the system. The function of the compressor is to ————–low temperature and low pressure vapors. State of the refrigerant after compression is ——-pressure and ———–temperature. […]


  • Refrigeration compressors

    Refrigeration compressors

    Refrigeration compressors Mains types of refrigeration compressors  Three types of compressors are used. These are Reciprocating compressor Rotary compressor Centrifugal compressor List the compressors used with respect to the type of drive used. These are of three types. Hermetically sealed compressor—–when compressor and motor has the same shaft or coupled shaft and this assembly is […]


  • Rotary Compressors in Refrigeration

    Rotary Compressors in Refrigeration

    Rotary Compressors in Refrigeration Definition: Rotary compressor compresses the refrigerant by the rotary motion of a roller eccentrically mounted in an enclosed cylinder. Function of the rotary compressor The function is same as that of the reciprocating compressor. It compresses the refrigerant from low pressure(evaporator pressure) to high pressure (Condenser pressure) and high temperature, maintains […]


  • *  Open Unit and Hermetic Sealed Unit, Differences

    * Open Unit and Hermetic Sealed Unit, Differences

      Open Unit and Hermetic Sealed Unit, Differences Sr. No. Open Unit Hermetic Sealed Unit 1. Compressor and motor are connected with a V- belt Compressor and motor have the same shaft and are placed in a welded dome. 2.  Prime mover can be an AC/DC motor or an IC engine Prime mover is a […]


  • *mcq: Refrigeration compressors

    *mcq: Refrigeration compressors

    mcq: Refrigeration compressors  In refrigeration,compressor in a refrigeration system increases (a) Temperature (b) Pressure (c) Temperature and pressure (d) None (Ans:c) Compressor in a refrigeration system increases (a) Temperature alone (b) Pressure alone (c) Volume alone (d) None (Ans:d) Compressor in a refrigeration system increases (a) Enthalpy (b) Entropy (c) Enthalpy and entropy (d) None […]


  • Interview Short Question Answers on refrigeration Compressors and  condensers 

    Interview Short Question Answers on refrigeration Compressors and  condensers 

    Interview Short Question Answers on refrigeration Compressors and  condensers    What are applications of the compressors? (a)    Reciprocating Compressor  (I) Where the normal boiling point (N B P) of refrigerant is lower than the application temperature. (II) Where evaporator and condenser pressures are positive pressures. (III) When the difference in condenser pressure and evaporator pressure […]