System studies of open-cycle OTEC components
A system model of open Rankine cycle ocean thermal energy conversion (OC-OTEC) was used to examine the effects of component performance and design on plant cost. Three components are examined in detail: an optional seawater deaeration subsystem, the flash evaporator, and a two-stage direct-contact condenser. Preliminary data quantifying noncondensable gas release in upcomers and a debubbler chamber were used to evaluate the effect of predeaeration (removing the dissolved gases in deaeration chambers before the seawater enters the heat exchangers) on system cost and performance. Little data on the interactions between geometry and performance of vertical spout flash evaporators operating under OTEC conditions are available; therefore, we performed independent parametric variations. For the direct-contact condenser previous numerical studies provide the basis for coupling geometry and performance. Results of these studies are useful in setting research priorities, in defining operating conditions for further seawater experiments, and in updating plant cost estimates.
- Research Organization:
- Solar Energy Research Inst., Golden, CO (USA)
- DOE Contract Number:
- AC02-83CH10093
- OSTI ID:
- 5347557
- Report Number(s):
- SERI/TP-253-2794; CONF-8511102-1; ON: DE85012176
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
140800* -- Solar Energy-- Ocean Energy Systems
COMPUTERIZED SIMULATION
CONDENSERS
DEAERATORS
DIRECT CONTACT HEAT EXCHANGERS
DIRECT-CONTACT CONDENSER
ENGINES
EVAPORATORS
FLASH EVAPORATOR
HEAT ENGINES
HEAT EXCHANGERS
OCEAN THERMAL ENERGY CONVERSION
OCEAN THERMAL POWER PLANTS
OPEN-CYCLE SYSTEMS
OPTIMIZATION
PARAMETRIC ANALYSIS
PERFORMANCE
POWER PLANTS
PRESSURE MEASUREMENT
RANKINE
RANKINE CYCLE ENGINES
SEAWATER DEAERATION
SIMULATION
SOLAR POWER PLANTS
STEAM CONDENSERS
TEMPERATURE MEASUREMENT
THERMAL POWER PLANTS
VAPOR CONDENSERS
140800* -- Solar Energy-- Ocean Energy Systems
COMPUTERIZED SIMULATION
CONDENSERS
DEAERATORS
DIRECT CONTACT HEAT EXCHANGERS
DIRECT-CONTACT CONDENSER
ENGINES
EVAPORATORS
FLASH EVAPORATOR
HEAT ENGINES
HEAT EXCHANGERS
OCEAN THERMAL ENERGY CONVERSION
OCEAN THERMAL POWER PLANTS
OPEN-CYCLE SYSTEMS
OPTIMIZATION
PARAMETRIC ANALYSIS
PERFORMANCE
POWER PLANTS
PRESSURE MEASUREMENT
RANKINE
RANKINE CYCLE ENGINES
SEAWATER DEAERATION
SIMULATION
SOLAR POWER PLANTS
STEAM CONDENSERS
TEMPERATURE MEASUREMENT
THERMAL POWER PLANTS
VAPOR CONDENSERS