Air storage requirements for a 220 MWe CAES plant as a function of turbomachinery selection and operation

Journal Article · Mon Apr 01 04:00:00 EST 1985 · IEEE Trans. Power Appar. Syst.; (United States)

DOI:https://doi.org/10.1109/TPAS.1985.319077· OSTI ID:6399220

Karalis, A J; Sosnowicz, E J; Stys, Z S

This paper examines the effects of compressor train selection, turbine operation and the generation/compression cycle for a 220 MWe CAES plant which operates with a HP turbine inlet pressure of 44 bar (638 psia). The required air storage mass for a particular CAES generation/compression cycle is a function of both the total air mass withdrawn (during generation) and the total air mass added (during compression). Thus, the air storage mass is dependent upon both the air mass flow rates and daily operating times for the individual turbine and compressor selected. The volumetric requirements of the underground cavities are examined as a function of geologic formation and inlet pressure. While constant volume air storage in a salt formation is emphasized, air storage in a variable volume compensated rock cavern and variable pressure storage in an aquifer are also discussed. Both a daily and weekly compression cycle are addressed and the affect of duty cycle on the compressor train selection is shown. For a given turbine design the effect of constant vs. variable pressure operation on overall plant performance is noted.

• Research Organization: United Engineers and Constructors Inc., Philadelphia, PA
• OSTI ID: 6399220
• Journal Information: IEEE Trans. Power Appar. Syst.; (United States), Journal Name: IEEE Trans. Power Appar. Syst.; (United States) Vol. PAS-104:4; ISSN IEPSA
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
250200 -- Energy Storage-- Compressed & Liquified Gas
29 ENERGY PLANNING, POLICY, AND ECONOMY
299003* -- Energy Planning & Policy-- Unconventional Sources & Power Generation-- Other-- (-1989)
AIR FLOW
AQUIFERS
COMPRESSED AIR ENERGY STORAGE
COMPRESSED AIR STORAGE POWER PLANTS
COMPRESSION
ELECTRIC GENERATORS
ENERGY STORAGE
FLUID FLOW
GAS FLOW
GAS TURBINES
MACHINERY
OPERATION
PEAKING POWER PLANTS
PERFORMANCE
PLANNING
POWER PLANTS
POWER RANGE 100-1000 MW
PRESSURE DEPENDENCE
STORAGE
TURBINES
TURBOGENERATORS
TURBOMACHINERY
UNDERGROUND STORAGE