Articles Posted in the " Question Answers on Refrigeration " Category

  • Vapor absorption refrigeration -question answers

    Vapor absorption refrigeration -question answers

    Vapor absorption refrigeration -question answers Keywords: absorption refrigeration-heat energy-aqua heat exchanger-generator-drip-analyser Abstract Vapor absorption refrigeration is a simple method. It is an economical method for producing refrigeration. It differs mainly with compression system that it uses heat energy instead of electric energy to change the state of the refrigerant to complete the refrigeration cycle.   The […]


  • * Refrigeration: Basic parts

    * Refrigeration: Basic parts

     Refrigeration: Basic parts Keywords: compound gage-crank case-piston ring-oil ring Abstract A compound gage consists of a vacuum and a pressure gage. Vacuum gage is used on suction side whereas compound gage is used on discharge side. Vacuum gage can read both vacuum and positive pressures.Pressure gas can read only positive pressures. A piston ring connects […]


  • * Refrigeration cycle: Main parts with processes

    * Refrigeration cycle: Main parts with processes

    Refrigeration cycle: Main parts with processes Keywords: Compressor-condenser-expansion valve-evaporator-piping Abstract Cooling is caused in the evaporator by abstracting heated in the evaporator. Compressor raises the temperature and pressure of the refrigerant to make it capable of losing heat to the surroundings in the condenser. Expansion valve controls the rate of flow as per cooling demand […]


  • * Refrigeration: question answers-condensing unit-back and discharge pressures

    * Refrigeration: question answers-condensing unit-back and discharge pressures

    Refrigeration: question answers-condensing unit-back and discharge pressures- Keywords: Condensing unit-discharge -back pressures Abstract Condensing unit consists of compressor and condenser fixed on a common platform. There are two pressures in the cycle namely discharge and back pressure. Different prime movers are used to run a refrigeration unit. What is the meaning of condensing unit? Assembly […]


  • *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 QUESTIONS on Refrigeration

    * Short Interview QUESTIONS on Refrigeration

     Short Interview QUESTIONS on Refrigeration What is a discharge pipe used in refrigeration? What is a liquid pipe used in refrigeration? Which is the material for the pipes used in refrigeration? Is the same material for pipes used with all the refrigerants? What is meant by specific volume? What is meant by specific enthalpy? What […]


  • *Short Interview Question Answers on Sensible- Latent Heat Loads

    *Short Interview Question Answers on Sensible- Latent Heat Loads

    Short Interview Question Answers on Sensible- Latent Heat Loads Keywords: Sensible heat-latent heat- COP Abstract Sensible heat is due to change of temperature. Latent heat is due to change of state. Cop is the output to input. or cooling effect/work input.  Q. What are Sensible heat loads? Give examples. Sensible heat load is due to […]


  • * Short Interview Question Answers on Volumetric Efficiency

    * Short Interview Question Answers on Volumetric Efficiency

    Short Interview Question Answers on Volumetric Efficiency Keywords: Clearance-clearance volume-Clearance volumetric efficiency Abstract Clearance in a reciprocating compressor does the safety of the cylinder head. But it sucks less fresh intake and thus decreases the mass flow rate per cycle.It is therefore a necessary evil. Define clearance volume and  clearance volumetric efficiency. Clearance: It is […]


  • *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, […]


  • Short Interview Question Answer on cooling loads

    Short Interview Question Answer on cooling loads

       Short Interview Question Answer on cooling loads  Q . What do mean by heat gain from occupants?  Inside the air-conditioned space persons are working. These persons are called occupants. Human body is such that it always looses heat, partly as sensible heat and partly as latent heat. Sensible heat is due to temperature difference. Latent […]