Project Title:

Simple, Low Power, Pumped Two Phase Heat Transport System (STTS)

  94-1	09.02	6631

  Simple, Low Power, Pumped Two Phase Heat Transport System 
  (STTS)

Abstract:

Our proposed innovation is a simple two-phase thermal 
transport system that's used for temperature control of large, 
crewed space vehicles. It's innovation lies in the resolution 
of many anomalies that have plagued previous designs. Based on 
mixed twophase flow, our system incorporates many innovative 
features that result in: efficient thermal management with 
minimal electrical power consumption and minimization of cost 
by using existing NASA developed hardware. Specifically these 
innovations include: a simple low power positive displacement 
pump that provides increased pressure for flow stabilization; 
a simple, more reliable two-phase accumulator; and, use of 
already developed evaporator and condenser hardware. This 
innovation is directly applicable to NASA's subtopic 09.02 for 
advanced heat transport systems to support human space 
missions operating at higher loads and more severe 
environments. It provides the needed stable temperature 
control, high efficiency and reliable operation that is being 
sought by NASA.

Commercial applications would be government programs that 
utilize large space platforms requiring very stable thermal 
interface temperatures for attached payloads. Such 
opportunities would exist on the space station, EOS programs, 
as well as any current potential users of capillary pumped 
loop technology. The latter could be as a subsystem/component 
supplier to large Aerospace contractors developing advanced 
platforms for DOD missions. Commercialization activities also 
involve using the simplified two phase system as a substitute 
for pumped liquid run-around loops. These run-around loops are 
typically used in process industries to transfer heat between 
widely dispersed heat exchangers.

Key Words

Engineering and Technology Associates
17 Holiday Park Drive
Hauppauge, NY 11788