Subject: Turbo compound difference 12
From: paul lamar
Date: 12/14/2018, 8:13 AM
To: A10-Me-Earthlink

12

To use a rotor as a series expander it is required to have control valves in the two valleys of the trochoid, in addition to two exhaust ports. In addition, it is necessary to adjust the volume displaced by the second rotor. On the other hand there are large thermal losses, nonexistent in a turbine. To this the mechanical losses are added. A turbine, on the other hand, is a flexible device capable of expanding gases completely, with high gasodynamic efficiency and minimal thermal and mechanical losses. In addition, it is a more compact device.


In a turbocompound, the perispheric ports prevent effectively separating the intake manifold from the exhaust manifold. This makes it impossible to work with large pressure differences between both ducts, necessary for the implementation of an efficient turbocompound; where the pressure of the exhaust manifold is several times the pressure of the intake manifold. The operation would occur with continuous expansions of Joule-Thomson, with the corresponding generation of entropy and destruction of useful work.
Gretings from Argentina.
Lisandro Rodríguez

Since we got 650 HP out of a 200 pound two rotor throwing away a lot of the exhaust energy
the turbine type turbo compound would be much  lighter in weight.

Paul Lamar

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