Tham khảo tài liệu 'steam power by mike brown_2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Simpo PDF Merge and Split Unregistered Version - http MIL-HDBK-1003 7 Hospitals Communications and Other Services. Activities which cannot withstand an outage of more than four hours must be protected. Where normal electric connections between hospitals for instance and the normal source of power may be broken by a catastrophe provide an emergency power plant of sufficient capacity to handle the essential load arranged to operate automatically with the failure or restoration of normal current. Expansion Rehabilitation and Replacement of Existing Plants Plant Additions. Expansion of an existing power plant should be considered when additional electric generating capacity including reserve capacity is needed to provide for future loads. An economic study must show that modifications and additions to an existing plant to serve additional loads will be more economical than the construction of another power plant. Compliance pollution control and elimination of safety deficiencies shall be included for any significant plant modifications. Rehabilitation Versus Replacement. If an existing plant has deteriorated to the point where numerous outages occur does not perform in compliance with air pollution regulations or is becoming a safety hazard its rehabilitation or replacement should be considered. The choice between rehabilitation of the existing plant or replacement with a new modern plant shall be determined by a life cycle economic analysis. New capacity as needed to handle additional projected load shall be included in the considerations. Necessary equipment and systems for air pollution regulation compliance and elimination of other operating safety or maintenance deficiency must be included in either the rehabilitated or replacement plant. Fuel Selection Selection. Refer to Department of Defense MIL-HDBK-1190 Facility Planning and Design Guide NAVFACINST On-Shore Use of Navy Special Navy Distillate and .
