Articles Posted in the " Refrigeration " Category

  • FILLING BLANKS & MATCH COLUMNS-REFRIGERATION

    FILLING BLANKS & MATCH COLUMNS-REFRIGERATION

      https://www.mesubjects.net/wp-admin/post.php?post=6702&action=edit       Q.A. Vapor Absorption Refrigeration-1 https://www.mesubjects.net/wp-admin/post.php?post=6700&action=edit       Refrigeration laws https://www.mesubjects.net/wp-admin/post.php?post=6622&action=edit       Refri Rotary Compressors https://www.mesubjects.net/wp-admin/post.php?post=6419&action=edit        Industrial refrigeration and air conditioning FILLING BLANKS & MATCH COLUMNS-REFRIGERATION Matching of refrigeration parts with refrigeration processes increases understanding of the system. Similar advantage one gets in filling blanks. Match the followings Column I Column II 1 Supply Duct (A)   Source […]


  • QUESTION ANSWERS ABSORPTION REFRIGERATION

    QUESTION ANSWERS ABSORPTION REFRIGERATION

      https://www.mesubjects.net/wp-admin/post.php?post=6712&action=edit        Match columns and fill blanks refrigeration https://www.mesubjects.net/wp-admin/post.php?post=6700&action=edit       Refrigeration laws https://www.mesubjects.net/wp-admin/post.php?post=6622&action=edit       Refrigeration Rotary Compressors https://www.mesubjects.net/wp-admin/post.php?post=6419&action=edit        Industrial refrigeration and air conditioning QUESTION ANSWERS ABSORPTION REFRIGERATION    Vapor absorption system can operate without the use of electricity. The system is operated with heat energy. Heat can be obtained by burning of fuel or wood, solar […]


  • REFRIGERATION LAWS

    REFRIGERATION LAWS

      https://www.mesubjects.net/wp-admin/post.php?post=6712&action=edit        Match columns and fill blanks refrigeration https://www.mesubjects.net/wp-admin/post.php?post=6702&action=edit       Q.A. Vapor Absorption Refrigeration-1 https://www.mesubjects.net/wp-admin/post.php?post=6622&action=edit       Refrigeration Rotary Compressors https://www.mesubjects.net/wp-admin/post.php?post=6419&action=edit        Industrial refrigeration and air conditioning REFRIGERATION LAWS Heat is abstracted in the evaporator from the products/space to be cooled. Heat is added by the compressor to raise its temperature and pressure. This enabled the refrigerant to […]


  • MATERIALS OF CONSTRUCTION AT CRYOGENIC TEMPERATURES

    MATERIALS OF CONSTRUCTION AT CRYOGENIC TEMPERATURES

        https://www.mesubjects.net/wp-admin/post.php?post=945&action=edit         Cryogenics liquefaction theory https://www.mesubjects.net/wp-admin/post.php?post=6673&action=edit       Cryogenics Air liquefaction https://www.mesubjects.net/wp-admin/post.php?post=1585&action=edit         Failure ductile brittle https://www.mesubjects.net/wp-admin/post.php?post=2438&action=edit            Applications of cryogenics MATERIALS OF CONSTRUCTION AT CRYOGENIC TEMPERATURES   Ductile materials suit cryogenic temperatures. Measure ductility from the energy required to break the specimen. Table gives the available data in this respect. On cooling materials to cryogenic temperatures, thermal, […]


  • MAGNETIC COOLING

    MAGNETIC COOLING

    https://www.mesubjects.net/wp-admin/post.php?post=945&action=edit         Cryogenics liquefaction theory MAGNETIC COOLING    Achieve cryogenic temperatures by magnetic cooling. It is achievable by demagnetization of a para magnetic salt. Magnetic cooling gives a temperature of 0.001 K.   Magnetic Cooling Very Low temperatures of the order of 0.001 K are obtainable wit magnetic cooling. Demagnetization of a para magnetic salt produces such […]


  • EXPANSION VALVES REFRIGERATION

    EXPANSION VALVES REFRIGERATION

      https://www.mesubjects.net/wp-admin/post.php?post=386&action=edit       Nomenclature of refrigerants https://www.mesubjects.net/wp-admin/post.php?post=358&action=edit        Gas Refrigeration-1 https://www.mesubjects.net/wp-admin/post.php?post=483&action=edit       Q. Ans Air Refrigeration-2 https://www.mesubjects.net/wp-admin/post.php?post=415&action=edit         Q. Ans Refrigeration https://www.mesubjects.net/wp-admin/post.php?post=407&action=edit         Off and On controls-Refrigeration https://www.mesubjects.net/wp-admin/post.php?post=371&action=edit         Q. Ans Air Refrigeration-3 https://www.mesubjects.net/wp-admin/post.php?post=437&action=edit          Q Ans Super heating & sub-cooling   EXPANSION VALVES REFRIGERATION Expansion valve decreases pressure & temperature to evaporator inlet conditions. Different expansion devices are used as per […]


  • SENSIBLE HEAT FACTOR (SHF)

    SENSIBLE HEAT FACTOR (SHF)

    https://www.mesubjects.net/wp-admin/post.php?post=7902&action=edit          Summary of Air Conditioning https://www.mesubjects.net/wp-admin/post.php?post=7875&action=edit        Psychrometric Properties SENSIBLE HEAT FACTOR (SHF) Sensible means due to temperature difference. Both sensible and latent heat loads are added in air conditioning. These are removed in the same ratio in which added. Proper sensible heat factor makes air conditioning enjoyable. There are many types of sensible heat factors. […]


  • *COOLING LOAD CALCULATIONS-1

    *COOLING LOAD CALCULATIONS-1

    COOLING LOAD CALCULATIONS ROOM LATENT HEAT LOADS (RLHL) RLHL = Room Latent Heat Loads are due to (i)  Latent heat load from occupants (assume 240 kJ/h/person) Qocc     = n x240          kJ/h n is the number of persons  (ii) Latent heat load from infiltrated air, it is due to the door openings in the AC room […]


  • COOLING LOAD CALCULATIONS-2

    COOLING LOAD CALCULATIONS-2

      CCOOLING LOAD CALCULATIONS-2 Cooling load calculations help to find the cooling capacity of a refrigeration plant for a certain application (cinema-library etc). These cooling loads consist of sensible and latent heat loads. Sensible heat loads are due to temperature difference. Latent heat loads are due moisture difference. Some of cooling loads are building transmission […]


  • AIR CONDITIONING UNITS

    AIR CONDITIONING UNITS

    https://www.mesubjects.net/wp-admin/post.php?post=7902&action=edit          Summary of Air Conditioning https://www.mesubjects.net/wp-admin/post.php?post=7875&action=edit        Psychrometric Properties AIR CONDITIONING UNITS Different cooling requirements use different types of refrigeration units. Domestic applications use window and split units. Air cools these units. Commercial applications use packaged units which factory assembled.  Water cool these units. Room Air conditioners A room air conditioner is AC. It is a […]