Development of encapsulated lithium hydride sink-side thermal energy storage for pulsed space power systems
Value analysis indicates that inclusion of thermal energy storage (TES) as an element in a pulsed space power supply will reduce the mass of the heat rejection system. A candidate design for the TES component utilizes lithium hydride (LiH) encapsulated in 304L stainless steel or molybdenum in a packed-bed configuration with a lithium or sodium-potassium (NaK) heat transport fluid. Critical concerns with this concept are the need to (1) accommodate shell stresses induced by volumetric expansion of the melting salt or surface gripping by the freezing salt and (2) minimize hydrogen loss through the shell due to LiH dissociation at high temperatures. Experimental observation of significant cracking of the LiH during cooling mitigates the first of these issues by providing a leakage path into the interior void as melting occurs at the salt-containment interface, thus allowing use of thin shells.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 5006599
- Report Number(s):
- CONF-880676-1; ON: DE88011496
- Resource Relation:
- Conference: Conference on thermophysics, plasma physics and lasers, San Antonio, TX, USA, 27 Jun 1988
- Country of Publication:
- United States
- Language:
- English
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Encapsulated sink-side thermal energy storage for pulsed space power systems
Development of encapsulated lithium hydride thermal energy storage
Related Subjects
29 ENERGY PLANNING
POLICY AND ECONOMY
42 ENGINEERING
LITHIUM HYDRIDES
ENCAPSULATION
SPACECRAFT POWER SUPPLIES
THERMAL ENERGY STORAGE EQUIPMENT
ACOUSTIC EMISSION TESTING
HEAT TRANSFER
HYDROGEN
MASS
MOLYBDENUM
PHASE TRANSFORMATIONS
POTASSIUM
RADIATORS
SODIUM
STAINLESS STEEL-304L
STRESSES
THERMAL ANALYSIS
WASTE HEAT UTILIZATION
ACOUSTIC TESTING
ALKALI METAL COMPOUNDS
ALKALI METALS
ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-NICKEL STEELS
CORROSION RESISTANT ALLOYS
ELECTRONIC EQUIPMENT
ELEMENTS
ENERGY TRANSFER
EQUIPMENT
HEAT EXCHANGERS
HEAT RESISTANT MATERIALS
HEAT RESISTING ALLOYS
HYDRIDES
HYDROGEN COMPOUNDS
IRON ALLOYS
IRON BASE ALLOYS
LITHIUM COMPOUNDS
MATERIALS
MATERIALS TESTING
METALS
NICKEL ALLOYS
NONDESTRUCTIVE TESTING
NONMETALS
POWER SUPPLIES
STAINLESS STEELS
STEELS
TESTING
TRANSITION ELEMENTS
WASTE PRODUCT UTILIZATION
NESDPS Office of Nuclear Energy Space and Defense Power Systems
320201* - Energy Conservation
Consumption
& Utilization- Transportation- Air & Aerospace
290800 - Energy Planning & Policy- Heat Utilization- (1980-)
420200 - Engineering- Facilities
Equipment
& Techniques