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Title: Direct-contact condensers for open-cycle OTEC applications: Model validation with fresh water experiments for structured packings

The objective of the reported work was to develop analytical methods for evaluating the design and performance of advanced high-performance heat exchangers for use in open-cycle thermal energy conversion (OC-OTEC) systems. This report describes the progress made on validating a one-dimensional, steady-state analytical computer of fresh water experiments. The condenser model represents the state of the art in direct-contact heat exchange for condensation for OC-OTEC applications. This is expected to provide a basis for optimizing OC-OTEC plant configurations. Using the model, we examined two condenser geometries, a cocurrent and a countercurrent configuration. This report provides detailed validation results for important condenser parameters for cocurrent and countercurrent flows. Based on the comparisons and uncertainty overlap between the experimental data and predictions, the model is shown to predict critical condenser performance parameters with an uncertainty acceptable for general engineering design and performance evaluations. 33 refs., 69 figs., 38 tabs.
Authors:
; ;
Publication Date:
OSTI Identifier:
6653510
Report Number(s):
SERI/TR-252-3108
ON: DE89000822
DOE Contract Number:
AC02-83CH10093
Resource Type:
Technical Report
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Research Org:
Solar Energy Research Inst., Golden, CO (USA)
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; OCEAN THERMAL ENERGY CONVERSION; COMPUTERIZED SIMULATION; CONDENSERS; DESALINATION; DESIGN; DIRECT CONTACT HEAT EXCHANGERS; FRESH WATER; NUMERICAL SOLUTION; OCEAN THERMAL POWER PLANTS; OPTIMIZATION; PACKINGS; PERFORMANCE; SEAWATER; CONVERSION; DEMINERALIZATION; ENERGY CONVERSION; HEAT EXCHANGERS; HYDROGEN COMPOUNDS; OXYGEN COMPOUNDS; POWER PLANTS; SEPARATION PROCESSES; SIMULATION; SOLAR ENERGY CONVERSION; SOLAR POWER PLANTS; THERMAL POWER PLANTS; WATER CONDENSERS; OCEAN THERMAL ENERGY CONVERSION; OTEC; DIRECT CONTACT HEAT EXCHANGERS; PACKINGS; FRESHWATER; SEAWATER; DESALINATION; NUMERICAL SOLUTION 140800* -- Solar Energy-- Ocean Energy Systems