Articles Posted in the " Compressors " Category

  • Refrigeration and air conditioning-fill in the blanks-compressor

    Refrigeration and air conditioning-fill in the blanks-compressor

    Refrigeration and air conditioning-fill in the blanks-compressor Keywords: hermetically sealed unit-semi-open unit-open unit-reciprocating-rotary-centrifugal-clearance volumetric efficiency Abstract Compressor in a refrigeration is like heart in a human being. Hermetically sealed unit is used in domestic units. Semi-open units are used in commercial units. Open units are used in industrial units.Reciprocating compressor is used with refrigerants having […]


  • Refrigeration-types of compressors, construction of a reciprocating compressor-shaft seal

    Refrigeration-types of compressors, construction of a reciprocating compressor-shaft seal

    Refrigeration-types of compressors, construction of a reciprocating compressor-shaft seal Keywords: Reciprocating-rotary-centrifugal-hermetically sealed-semi-open – open unit-compressor seal Abstract Compressor is necessary to produce refrigeration because refrigerant temperature and pressure are to be increased to throw away heat extracted at low temperature to the surroundings at a much higher temperature. many types of compressors are used depending […]


  • Rotary Compressors in Refrigeration

    Rotary Compressors in Refrigeration

    Rotary Compressors in Refrigeration Keywords: rotary compressor- stationary blade- rotating blade-roller Abstract It compresses the refrigerant to high pressure and high temperature. It enables the refrigerant to lose heat to the surroundings. An eccentrically mounted roller increase the dynamic head of the refrigerant. Stationary and rotary blade type rollers are used to achieve the required […]


  • *  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  Keywords: Compressor-temperature-pressure difference-Reciprocating-rotary-centrifugal Abstract Refrigeration decreases temperature and transfer heat from a body at low temperature to a body at high temperature. By Clausius statement it is not possible without the use of an external agent. In refrigeration the external agent is compressor. In refrigeration,compressor in a refrigeration system increases (a) Temperature […]


  • *Short Interview Question Answers on refrigeration Compressors and  condensers 

    *Short Interview Question Answers on refrigeration Compressors and  condensers 

    Short Interview Question Answers on refrigeration Compressors and  condensers  Keywords: Reciprocating-rotary-centrifugal compressors-air-water-evaporative cooled condensers Abstract Compressor is required in refrigeration to help heat transfer from a lower temperature region to a higher temperature region. Depending upon the temperature to be achieved, the use of different refrigerants require the use of different types of compressors, namely, […]