[SS-Propellant] Re: SugarShot -- input needed from members

[prodan paul]

Hello !
Congratulation for this important step in the project
development. You have done a good job with this
complete automated system for propellant production.
Here’s my suggestions and questions:

1.	The removable end cap, witch will blow-off in case
of accidental propellant ignition it’s a very good
idea. Take special care in his construction that the
axel that goes trough it or something else could not
block his movement.
2.	Any manual intervention in the blast zone (gearhead
motor, o-ring, …) should be made with an empty
mixing drum.
3.	The vacuum pump must be capable of almost
continuous operation and should deal with the water
vapours witch could condense inside.
4.	If the installation will work on the launch site
the power consumption must be evaluated and see if
it’s available. I think insulation around the heated
tanks will help decreasing the power consumption.
5.	Sorry if I’m not at current with this fabrication
process but I wonder if all the water will be
eliminated in the process? You know there is some
salts witch in the crystallisation process could trap
water molecules inside the crystalline network, is the
case of KNO3 in this temperature and pressure
conditions?

Paul.


--- Rich Nakka <richnakka at rogers.com> wrote:

> Greetings Safety Team and Environmental Impact Team
> members,
> 
> I have uploaded a draft copy of the Propellant
> Production specification 
> document that I recently completed. This document
> outlines the details 
> of the proposed production process and apparatus for
> producing the large 
> batches of propellant needed for the SStS project:
> 
> http://sugarshot.org/downloads/ssts_propel_spec.pdf
> 
> *** There are portions of the document that deal
> with Safety & 
> Environment ***
> 
> Please provide comments on the Safety and
> Environment aspects of this 
> document. I am sure that I have missed alot of
> important matters that 
> should be included.
> Expediency is much appreciated.
> 
> Richard Nakka
> Team Lead, Propellant Development Team, SStS Project
> 


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