Conceptual design selection and development of a latent-heat thermal-energy-storage subsystem for a saturated-steam solar receiver and load

Technical Report · Sun Feb 01 00:00:00 EST 1981

DOI:https://doi.org/10.2172/6172137· OSTI ID:6172137

The following latent heat storage concepts are described and evaluated in comparison with each other and with an oil/rock sensible heat storage system: (1) passive tube intensive (shell-and-tube heat exchanger) with and without heat transfer enhanced by fins; (2) phase change material cans (or chubbs) with a biphenyl intermediate heat transfer fluid; (3) phase change material macroencapsulation in a containment tank full of tubes; (4) microencapsulation in a porous carrier; (5) direct contact heat exchange; and (6) systems using mechanical scrapers for removing solidified phase change material from container surfaces. A tube intensive system with heat transfer enhancement was selected, and the conceptual design and cost/performance estimates are given for it. A commercial scale unit is assessed, and design changes and corresponding costs are presented that would be required to make the system meet changed requirements. (LEW)

• Research Organization: Sandia National Lab. (SNL-CA), Livermore, CA (United States); Combustion Engineering, Inc., Windsor, CT (USA). Advanced Development Dept.; Comstock and Wescott, Inc., Cambridge, MA (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6172137
• Report Number(s): SAND81-8184; ON: DE81029622; CEND-389
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
LATENT HEAT STORAGE
THERMAL ENERGY STORAGE EQUIPMENT
COMPARATIVE EVALUATIONS
COST
DESIGN
EUTECTICS
HEAT EXCHANGERS
PERFORMANCE
PHASE CHANGE MATERIALS
SODIUM HYDROXIDES
SODIUM NITRATES
SOLAR PROCESS HEAT
SOLAR RECEIVERS
STEAM GENERATORS
ALKALI METAL COMPOUNDS
BOILERS
ENERGY
ENERGY STORAGE
EQUIPMENT
HEAT
HEAT STORAGE
HYDROGEN COMPOUNDS
HYDROXIDES
MATERIALS
NITRATES
NITROGEN COMPOUNDS
OXYGEN COMPOUNDS
PROCESS HEAT
SODIUM COMPOUNDS
STORAGE
VAPOR GENERATORS
CSP
Concentrating Solar Power
142000* - Solar Energy- Heat Storage- (1980-)
140905