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					Pengantar Teknik Kimia
Sesi 1: Peralatan Proses


Ir. Abdul Wahid Surhim, MT.
Your Logo
  Here                   COMPRESSOR

                             Oleh :

            Riyandi Chairul Siregar


                                        Rizky Feryansyah


            Rumia Stephanie Monica


                                        Ryan Indra Mukti

                          ChE - FTUI 2006
           Kompressor




Definisi   Kind Of Compressor    Aplikasi


               ChE - FTUI 2006
  Compressor is………..
compressor is a mechanical device that increases the pressure of a gas by
      reducing its volume. Compression of a gas naturally increases its
                                temperature.
 Compressors are closely related to pumps: both increase the pressure on
    a fluid and both can transport the fluid through a pipe. As gases are
  compressible, the compressor also reduces the volume of a gas. Liquids
  are generally incompresible, so the main result of a pump is to move the
                              liquid elsewhere.




                             ChE - FTUI 2006
    Kind Of Compressors are…….
•   Reciprocating Compressor
•   Rotary Screw Compressor
•   Axial Flow Compressor
•   Centrifugal Compressor
•   Mixed-Flow Compressor
•   Scroll Compressor
•   Diaphragm Compressor




                      ChE - FTUI 2006
Reciprocating Compressor….
 use pistons driven by a crankshaft. They can be either
 stationary or portable, can be single or multi-staged, and can
 be driven by electric motors or internal combustion engines.
 Small reciprocating compressors from 5 to 30 horsepower
 (hp) are commonly seen in automotive applications and are
 typically for intermittent duty. Larger reciprocating
 compressors up to 1000 hp are still commonly found in large
 industrial applications, but their numbers are declining as
 they are replaced by less costly rotary screw compressors.
 Discharge pressures can range from low pressure to very
 high pressure (>5000 psi or 35 MPa).


                        ChE - FTUI 2006
Reciprocating Compressor….




           ChE - FTUI 2006
Rotary Screw Compressor…..
   use two meshed rotating positive-displacement
    helical screws to force the gas into a smaller space.
    These are usually for continuous operation in
    commercial and industrial applications and may be
    either stationary or portable. Their application can
    be from 5 hp (3.7 kW) to over 500 hp (375 kW) and
    from low pressure to very high pressure (>1200 psi
    or 8.3 MPa). They are commonly seen with roadside
    repair crews powering air-tools. This type is also
    used for many automobile engine superchargers
    because it is easily matched to the induction
    capacity of a piston engine.

                        ChE - FTUI 2006
Rotary Screw Compressor…..




           ChE - FTUI 2006
Axial-Flow Compressor…..
   use a series of fan-like rotating rotor blades to
    progressively compress the gasflow. Stationary
    stator vanes, located downstream of each rotor,
    redirect the flow onto the next set of rotor blades.
    The area of the gas passage diminishes through the
    compressor to maintain a roughly constant axial
    Mach number. Axial-flow compressors are normally
    used in high flow applications, such as medium to
    large gas turbine engines. They are almost always
    multi-staged. Beyond about 4:1 design pressure
    ratio, variable geometry is often used to improve
    operation.

                        ChE - FTUI 2006
Axial-Flow Compressor…..




           ChE - FTUI 2006
Axial-Flow Compressor…..




           ChE - FTUI 2006
Centrifugal Compressor…..
   use a vaned rotating disk or impeller in a shaped housing to
    force the gas to the rim of the impeller, increasing the
    velocity of the gas. A diffuser (divergent duct) section
    converts the velocity energy to pressure energy. These are
    for continuous, heavy industrial uses and are usually
    stationary. Their application can be from 100 hp (75 kW) to
    thousands of horsepower. With multiple staging, they can
    achieve extremely high output pressures greater than
    10,000 lbf/in² (69 MPa). Many large snow-making operations
    (like ski resorts) use this type of compressor. They are also
    used in internal combustion engines as superchargers and
    turbochargers. Centrifugal compressors are used in small
    gas turbine engines or as the final compression stage of
    medium sized gas turbines.

                           ChE - FTUI 2006
Centrifugal Compressor…..




           ChE - FTUI 2006
Centrifugal Compressor…..




           ChE - FTUI 2006
Mixed-Flow Compressor…..
   are similar to a centrifugal compressor, but have a
    radial and axial velocity component at the exit from
    the rotor. The diffuser is often used to turn diagonal
    flow to the axial direction. The diagonal compressor
    has a lower diameter diffuser than the equivalent CF
    compressor. A diagonal flow compressor is used in
    the Pratt & Whitney Canada PW600 turbofan.




                        ChE - FTUI 2006
Mixed-Flow Compressor…..




           ChE - FTUI 2006
Scroll Compressor……..
   similar to a rotary screw device, it includes
    two interleaved spiral-shaped scrolls to
    compress the gas. Its output is more pulsed
    than that of a rotary screw compressor, and
    this has caused its declining industrial use. It
    can be used as an automotive supercharger,
    and in an air conditioner condensing unit.


                      ChE - FTUI 2006
Scroll Compressor……..




           ChE - FTUI 2006
Diaphragm Compressor….….
   Diaphragm compressor is used for hydrogen
    and compressed natural gas (CNG).




                    ChE - FTUI 2006
Diaphragm Compressor….….




          ChE - FTUI 2006
Applications……..
   in pressurised aircraft to provide a breathable atmosphere of higher than
    ambient pressure
   in jet engines to provide the great mass of operating fluid and, at high
    altitudes, a high enough concentration of oxygen for combustion of the air
    and fuel mixture. The power to turn the compressor comes from the jet's
    own turbines.
   in many various industrial, manufacturing and building processes to
    power all types of pneumatic tools.
   in medicine and manufacturing to store purified or manufactured gases in
    a small volume
   as a medium for transferring energy, such as to power pneumatic
    equipment
   in refrigeration and air conditioner equipment to move heat from one
    place to another in refrigerant cycles: see heat pump.



                                ChE - FTUI 2006
Applications……. (2)
   in pipeline transport of domestic gas to move the gas from the production
    site to the consumer
   in SCUBA diving, hyperbaric oxygen therapy and other life support
    devices to store breathing gas in a small volume such as in diving
    cylinders
   in submarines to store gas for later use as buoyancy
   in turbochargers and superchargers to increase the performance of
    internal combustion engines by concentrating oxygen
   providing compressed air for filling pneumatic tires
   in a Biogas powerplant to raise the gas pressure for the gas turbines
   in rail and heavy road transport to provide compressed air for operation of
    rail vehicle brakes or road vehicle brakes and various other systems
    (doors, windscreen wipers, engine/gearbox control etc).



                                ChE - FTUI 2006
THANK’S FOR YOUR ATTENTION




          ChE - FTUI 2006
   Crew
Riyandi C S
  Rizky F
Rumia S M
 Ryan I M




ChE - FTUI 2006
Data Team
 All of Us




ChE - FTUI 2006
Computer Graphic Specialist
          -41-




        ChE - FTUI 2006
       Thank’s To
  Tuhan Yang Maha Esa
  Owner of This Laptop
 Kingston Data Traveler
Warnet-Warnet Terdekat




      ChE - FTUI 2006
SEE YOU AGAIN!!!




              ChE - FTUI 2006

				
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posted:11/25/2012
language:Malay
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