Shell-and-plate-type heat exchangers for OTEC plants

Journal Article · Wed Aug 01 04:00:00 EDT 1984 · J. Sol. Energy Eng.; (United States)

DOI:https://doi.org/10.1115/1.3267597· OSTI ID:6294540

Uehara, H; Kusudu, H; Monde, M; Nakoaka, T; Sumitomo, H

New titanium, shell-and-plate type heat exchangers for ocean-thermal-energyconversion (OTEC) plants have been developed which include three different plate types (fluted, impinging, and porous-surface) for the evaporator and two kinds of plates (No. 1 and No. 2) for the condenser. Performance tests with fresh water show that the overall heat transfer coefficient U of the evaporator using the porous plate is the highest among the three plates; it can reach 4000-4500 W/m/sup 2/K using ammonia as the working fluid and 3500-4000 W/m/sup 2/K for a Freon, R-22. The U of the condenser using the No. 2 plate is higher than that using the No. 1 plate; it can reach 3800-4500 W/m/sup 2/K for ammonia and 2000-3500W/m/sup 2/K for R-22.

• Research Organization: Department of Mechanical Engineering, Saga University, Saga City, Saga
• OSTI ID: 6294540
• Journal Information: J. Sol. Energy Eng.; (United States), Journal Name: J. Sol. Energy Eng.; (United States) Vol. 106:3; ISSN JSEED
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
140800* -- Solar Energy-- Ocean Energy Systems
AMMONIA
COEFFICIENT OF PERFORMANCE
CONDENSERS
DESIGN
ELEMENTS
EQUIPMENT
EVAPORATORS
FLUIDS
FREONS
HALOGENATED ALIPHATIC HYDROCARBONS
HEAT EXCHANGERS
HEAT TRANSFER FLUIDS
HYDRIDES
HYDROGEN COMPOUNDS
METALS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OCEAN THERMAL POWER PLANTS
ORGANIC COMPOUNDS
ORGANIC HALOGEN COMPOUNDS
PERFORMANCE TESTING
PLATES
POWER PLANTS
SHELLS
SOLAR EQUIPMENT
SOLAR POWER PLANTS
SOLAR STILLS
TESTING
THERMAL POWER PLANTS
TITANIUM
TRANSITION ELEMENTS
VAPOR CONDENSERS