Turbo for flowbench

[Bryon Hargis]

I realize this, however I was not speaking of the turbine, I was speaking of 
the compressor.  I was saying while the turbo will definitely spin up some 
at no load freewheeling, it will also not provide anything useful.  Energy 
in = Energy out, and as Jesse and I both pointed out, theres no energy going 
in with no load.

And while the enthalpy difference across the turbine is directly 
proportional to the amount of work a turbine can do, so is mass flow.  So 
saying its not really mass flow that matters is not true.  There equal in 
that regard.  Increasing either in the same proportion with everything else 
staying the same will net the same result.


Bryon


----Original Message Follows----
From: "Jesse Ruppel" <ruppeljw at capital.net>
Reply-To: diy_efi at diy-efi.org
To: <diy_efi at diy-efi.org>
Subject: RE: Turbo for flowbench
Date: Mon, 4 Feb 2002 17:24:48 -0500

This issue is not so much mass flow, but enthalpy.  You need a load to be
able to supply the fuel to generate the consequent heat and pressure
differential across the turbine.

Jesse Ruppel
ruppeljw at capital.net

87T Supra
87T 4x4 Pickup

 > -----Original Message-----
 > From: owner-diy_efi at diy-efi.org [mailto:owner-diy_efi at diy-efi.org]On
 > Behalf Of Bryon Hargis
 > Sent: Monday, February 04, 2002 2:38 PM
 > To: diy_efi at diy-efi.org
 > Subject: Re:Turbo for flowbench
 >
 >
 > I'm guessing you do not have a turbo car.  You will not make any
 > appreciable
 > mass flow rates at a reasonable pressure (to overcome all the tubing you
 > will need, and the flow bench) with the turbo unless the car is
 > under load.
 > So unless you want to burn down your rear brakes while taking your
 > measurements for however long, this idea won't work.  I won't
 > even get into
 > the safety of this idea.
 >
 > Bryon
 >
 > ----Original Message Follows----
 > From: Carter Shore <clshore at yahoo.com>
 > Reply-To: diy_efi at diy-efi.org
 > To: diy_efi at diy-efi.org
 > Subject: Re:Turbo for flowbench
 > Date: Sun, 3 Feb 2002 09:31:41 -0800 (PST)
 >
 > Actually,
 > There's a simple solution for powering a turbo for a
 > flowbench:
 > Use a motor that's already turbo charged, but bypass
 > the compressor section so that the motor runs NA, but
 > the exhaust still drives the turbine.
 > Then, use the output of the compressor section to run
 > the flowbench. (You may need some long hose!)
 > Control the flow rate by the throttle on the engine.
 > Advantages:
 > 1) Plenty of power to run the turbo.
 > 2) Power source is both mobile and quiet.
 > 3) Real world flow rates.
 >
 > Too wacky?
 >
 > Then how about using the motor itself as a suction
 > device, no turbo required?
 > Connect the motor's intake to the exit side of the
 > flowbench, leave the input side open to atmosphere.
 > Control the airflow with the throttle.
 > All you need is a long hose and some instrumentation
 > to measure pressure and airflow.
 >
 > Damn, I like this idea.
 >
 > Jack up the rear wheels, and use the cruise control to
 > regulate the airflow.
 >
 > So whadayathink folks?
 >
 > Carter
 >
 >
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