Gas utility thwarts old man winter

Journal Article · Mon May 01 00:00:00 EDT 1978 · Compressed Air; (United States)

OSTI ID:7071457

Arkansas Louisiana Gas Co. (ARKLA) increased peak deliverability to the 675,000 customers in its five-state system by expanding an existing underground storage reservoir at Ada, Okla., to a withdrawal capacity of about 200 million cu ft/day. Because the main line system operates at 700-900 psig and the reservoir pressure is 170-450 psig, gas flows freely into the reservoir but requires compression for withdrawal. Each of the four Ingersoll-Rand Co. GT-221 Centregal MG-2 gas turbine compressor packages, rated at 4250 hp, can move at least 50 million cu ft/day from the storage field into the high-pressure pipeline. ARKLA selected the Centregal package because of the gas turbine's characteristic horsepower increase at low ambient temperatures, which corresponds with the cold weather operation of the peaking project. The Centregal compressor is useful in pressure ranges formerly limited to reciprocating machinery. The high compression ratio (25:30.1) Centregal consists of three multistage centrifugal compressor casings mounted in a single bundle and directly connected to the GT-22 turbine by a speed-increasing gear.

• OSTI ID: 7071457
• Journal Information: Compressed Air; (United States), Vol. 83
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
GAS COMPRESSORS
SPECIFICATIONS
GAS TURBINES
NATURAL GAS
UNDERGROUND STORAGE
NATURAL GAS DISTRIBUTION SYSTEMS
PEAK LOAD
COMPRESSORS
ENERGY SOURCES
ENERGY SYSTEMS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
MACHINERY
STORAGE
TURBINES
TURBOMACHINERY
032000* - Natural Gas- Transport
Handling
& Storage
035000 - Natural Gas- Storage- (1989-)