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Forum index » Science and Technology » Engineering » Control
Muti compressor control system
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AKR_IIT
science forum beginner


Joined: 25 May 2006
Posts: 4

PostPosted: Tue Jun 06, 2006 7:02 am    Post subject: Muti compressor control system Reply with quote

hello friends

I am working in a cement industry and I need some information regarding
the compressor control system.
I need to know what are the best control systems available with cost
effectiveness.

I would be highly thankful for the information

arun
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bruce varley
science forum beginner


Joined: 31 May 2005
Posts: 38

PostPosted: Tue Jun 06, 2006 10:37 am    Post subject: Re: Muti compressor control system Reply with quote

arun rout <arunkumarrout@gmail.com> wrote in message
news:1149577358.409303.148700@y43g2000cwc.googlegroups.com...
Quote:
hello friends

I am working in a cement industry and I need some information regarding
the compressor control system.
I need to know what are the best control systems available with cost
effectiveness.

I would be highly thankful for the information

arun

Reciprocating or turbine? Rating and operating point? Objectives of the
system?
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AKR_IIT
science forum beginner


Joined: 25 May 2006
Posts: 4

PostPosted: Wed Jun 07, 2006 8:16 am    Post subject: Re: Muti compressor control system Reply with quote

Compressors are reciprocating run by 150 KW motors to produce
7Kg/cm*cm. The objective for the controller would be optimizing between
the usage and production of compressed air

..
bruce varley wrote:
Quote:
arun rout <arunkumarrout@gmail.com> wrote in message
news:1149577358.409303.148700@y43g2000cwc.googlegroups.com...
hello friends

I am working in a cement industry and I need some information regarding
the compressor control system.
I need to know what are the best control systems available with cost
effectiveness.

I would be highly thankful for the information

arun

Reciprocating or turbine? Rating and operating point? Objectives of the
system?
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bruce varley
science forum beginner


Joined: 31 May 2005
Posts: 38

PostPosted: Sat Jun 10, 2006 9:41 am    Post subject: Re: Muti compressor control system Reply with quote

AKR_IIT <arunkumarrout@gmail.com> wrote in message
news:1149668193.933571.223280@i39g2000cwa.googlegroups.com...
Quote:
Compressors are reciprocating run by 150 KW motors to produce
7Kg/cm*cm. The objective for the controller would be optimizing between
the usage and production of compressed air

.
bruce varley wrote:
arun rout <arunkumarrout@gmail.com> wrote in message
news:1149577358.409303.148700@y43g2000cwc.googlegroups.com...
hello friends

I am working in a cement industry and I need some information
regarding
the compressor control system.
I need to know what are the best control systems available with cost
effectiveness.

I would be highly thankful for the information

arun

Reciprocating or turbine? Rating and operating point? Objectives of the
system?

It can be a simple discharge pressure switch with some hysteresis that
switches the unloading valves on the machine, if it has them.This can be
extended to a number of stages, with appropriate differentials. Nowadays a
PLC is often used to sequence the switching, along with the other machine
functions.

If you control the pressure, then you control the balance between usage and
production. Depending, you may be able ot optimise energy usage by lowering
the pressure you control to. Don't know what your plant is, but unless
compressed air is your main commodity, I'd be surprised if this was an
application that warranted a lot of time.
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AKR_IIT
science forum beginner


Joined: 25 May 2006
Posts: 4

PostPosted: Tue Jun 13, 2006 4:49 am    Post subject: Re: Muti compressor control system Reply with quote

The compressed air system already has a pressure switch and has load
unload control only......I wanted to know what other types of controls
are available like 2-step 3-step or 5-step controls. Which are the
companies that sell such control and which one will be the most cost
effective.
bruce varley wrote:
Quote:
AKR_IIT <arunkumarrout@gmail.com> wrote in message
news:1149668193.933571.223280@i39g2000cwa.googlegroups.com...
Compressors are reciprocating run by 150 KW motors to produce
7Kg/cm*cm. The objective for the controller would be optimizing between
the usage and production of compressed air

.
bruce varley wrote:
arun rout <arunkumarrout@gmail.com> wrote in message
news:1149577358.409303.148700@y43g2000cwc.googlegroups.com...
hello friends

I am working in a cement industry and I need some information
regarding
the compressor control system.
I need to know what are the best control systems available with cost
effectiveness.

I would be highly thankful for the information

arun

Reciprocating or turbine? Rating and operating point? Objectives of the
system?

It can be a simple discharge pressure switch with some hysteresis that
switches the unloading valves on the machine, if it has them.This can be
extended to a number of stages, with appropriate differentials. Nowadays a
PLC is often used to sequence the switching, along with the other machine
functions.

If you control the pressure, then you control the balance between usage and
production. Depending, you may be able ot optimise energy usage by lowering
the pressure you control to. Don't know what your plant is, but unless
compressed air is your main commodity, I'd be surprised if this was an
application that warranted a lot of time.
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