A model for allocation of sewage treatment systems to the Naval Fleet
By: by Edward A. Brill
Contributors: Naval Postgraduate School (U.S.)
Publisher: Naval Postgraduate School
Published: 1972
Place of publication: Monterey, California
Language: eng
Number of pages: 22
Subjects: Mathematical models; Pollution control equipment; Ships; Sanitation; Septic tanks
Description: The paper discusses the problem of planning the allocation of sewage treatment systems to the Naval Fleet. It is assumed that the obsolescence or deterioration process of a ship is a semi-Markov process. For the special case of deterministic deterioration, the total discounted cost of revamping a group of ships is determined as a function of the time horizon chosen to do so. This function is graphed for a set of representative cost factors. Finally, the semi-Markov and Markov models are discussed with a view towards a future simulation study.
Notes: Title from cover.

"July 1972"--Cover.

"NPS-55ZG72071A"--Cover.

DTIC Descriptors: Statistical processes, renovating, sewage treatment, shipboard sewage treatment systems.

Author(s) subject terms: Sewage system, repipe, disounted cost, deterioration process, deterministic, semi-Markov.

Includes bibliographical references (p. 19)

"Approved for public release; distribution unlimited"--Cover.

Technical report; 1972.