Abstract
This paper presents a FORTRAN IV batch-type computer program for the heat-balance calculation of a nonreheat marine steam plant. The program is in conformance with the commercial practice standards presented in SNAME Technical and Research Bulletin 3–11 "Marine Steam Power Plant Heat Balance Practices." The program treats the preliminary design heat-balance problem where feed heater outlet temperatures can be specified prior to the selection of specific heat exchanger characteristics. The system design includes a realistic auxiliary exhaust system utilizing auxiliary exhaust, bleed, augment, and unloading as available or necessary or both. The system must include a deaerating feed tank and may include up to two low-pressure feed heaters and up to three high-pressure feed heaters. The program is designed so that further extension and adaptation to special needs can be easily accomplished. Program design results in a minimization of input data and very efficient running times. A verification example is presented. User's Instructions, Programmer's Documentation, and a listing are included as Appendices.
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