This paper describes a new type of extended-surface heat exchanger developed for application to a gas-turbine plant for a natural-gas pipe-line pumping station. This regenerator features compactness and low weight, although the particular unit described is not as compact and light as could be made since primary consideration was given to material strength and service life, thus involving the use of relatively heavy sections for both primary and extended surfaces. Smaller-scale component parts would give higher heat-transfer coefficients and increase heating surface per unit volume by as much as 3 to 1.

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