[AR] Re: Electric driven Turbo Pumps

  • From: "Anthony Cesaroni" <acesaroni@xxxxxxxxxxx>
  • To: <arocket@xxxxxxxxxxxxx>
  • Date: Thu, 15 Dec 2016 19:52:03 -0500

FWIW, a biprop with less than ~2500 lbs./thrust, a piston pump is hard to
beat in terms of efficiency from a system standpoint. LLNL demonstrated that
quite a few years ago.

Anthony J. Cesaroni
President/CEO
Cesaroni Technology/Cesaroni Aerospace
http://www.cesaronitech.com/
(941) 360-3100 x101 Sarasota
(905) 887-2370 x222 Toronto

-----Original Message-----
From: arocket-bounce@xxxxxxxxxxxxx [mailto:arocket-bounce@xxxxxxxxxxxxx] On
Behalf Of Henry Spencer
Sent: Thursday, December 15, 2016 7:41 PM
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Re: Electric driven Turbo Pumps

On Thu, 15 Dec 2016, Pierce Nichols wrote:

The piston cylinder volume still needs to be filled from tank 
pressure, so there's a relation there between tank pressure and maximum
pump speed...

For a single cylinder, yes, but if you've got two or three of them operating
in sync, you can maintain something approaching continuous flow in the feed
line from the tank, so you're not *accelerating* a long slug of liquid every
time, just diverting the flow back and forth.

This does add design complexity, of course.

Henry



Other related posts:

  1. Home
  2. arocket
  3. Archive
  4. 12-2016