Articles Posted in the " Compressors " Category

  • Compressor-fill in the blanks

    Compressor-fill in the blanks

    Compressor-fill in the blanks Fill in the blanks makes the understanding of a refrigeration compressor deep and clear. Thus, more fill in the blanks will further increase the knowledge.  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 […]


  • Refrigeration-Compressors

    Refrigeration-Compressors

    Refrigeration-Compressors   Three types of compressors are used. These are Reciprocating compressor Rotary compressor Centrifugal compressor  Compressors used with respect to the type of drive  These are of three types. Hermetically sealed compressor–when compressor and motor has the same shaft or coupled shaft and this assembly is sealed in a single housing. Semi-open unit–The housing […]


  • Refrigeration-Rotary Compressors

    Refrigeration-Rotary Compressors

    Refrigeration-Rotary Compressors Definition: This compressor compresses the refrigerant by the rotary motion of a roller eccentrically mounted in an enclosed cylinder. Function  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. It also maintains the pressure difference between the […]


  • *  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 (Ans:c) Compressor […]


  • Interview Short Question Answers on Compressors and  Condensers 

    Interview Short Question Answers on Compressors and  Condensers 

    Interview Short Question Answers on 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 is […]