Advanced Recuperator for Compressed Air Energy Storage Plants

This paper presents solutions to the extensive corrosion problems affecting recuperators in Compressed Air Energy Storage (CAES) applications. Two advanced designs for a 50 MW CAES plant were engineered: (a) a two-section counterflow arrangement with a replaceable cold end section which operates with tube wall temperatures below the exhaust gas dew point temperature, (b) a three-section design with a flow arrangement which eliminates tube wall temperatures below the exhaust gas dew point temperature.Presented in this paper are a general description, design specifics, performance and cost data for these two conceptual designs. Technical and economic analyses were performed to determine the most practical and economic design.Copyright © 1986 by ASME