Design and Development of a Regenerative Blower for EVA Suit Ventilation
- Author:
- Izenson, Michael G.
- Published:
- [2011].
- Physical Description:
- 1 electronic document
- Additional Creators:
- Phillips, Scott D., Hill, Roger W., Paul, Heather L., and Chen, Weibo
Online Version
- hdl.handle.net , Connect to this object online.
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access - Summary:
- Ventilation subsystems in future space suits require a dedicated ventilation fan. The unique requirements for the ventilation fan - including stringent safety requirements and the ability to increase output to operate in buddy mode - combine to make a regenerative blower an attractive choice. This paper describes progress in the design, development, and testing of a regenerative blower designed to meet requirements for ventilation subsystems in future space suits. We have developed analysis methods for the blower s complex, internal flows and identified impeller geometries that enable significant improvements in blower efficiency. We verified these predictions by test, measuring aerodynamic efficiencies of 45% at operating conditions that correspond to the ventilation fan s design point. We have developed a compact motor/controller to drive the blower efficiently at low rotating speed (4500 rpm). Finally, we have assembled a low-pressure oxygen test loop to demonstrate the blower s reliability under prototypical conditions.
- Other Subject(s):
- Collection:
- NASA Technical Reports Server (NTRS) Collection.
- Note:
- Document ID: 20110008716.
JSC-CN-23095.
41st International Conference on Environmental Systems; 17-21 Jul. 2011; Portland, OR; United States. - Terms of Use and Reproduction:
- Copyright, Distribution as joint owner in the copyright.
View MARC record | catkey: 15991536