tailieunhanh - Diesel Electric Generator Plants_3

Tham khảo tài liệu 'diesel electric generator plants_3', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | MIL-HDBK-1003 11 Simpo PDF Merge and Split Unregistered Version - http e sewage treatment plant sludge digester heating engine fired on digester gas and f process heating and hot water use. g high temperature hot water heating and district heating systems h absorption chillers and i additional power generation. Steam. Steam measured in pounds per square inch lb inL2J or kilograms per square centimeter kg cmL2J is produced in heat recovery boilers and is usually generated at about 125 lb inL2J kg cmL2J for larger systems. It is possible to generate steam at higher pressures however the highest operating steam temperature is limited to about 100deg. F 38deg. C below the exhaust temperature. The most cost-effective steam conditions for heat recovery may be saturated 15 lb inL2J steam kg cmL2J . Care must be taken in design of heat recovery systems to insure that the exhaust temperature is above the dew point. This usually limits the minimum exhaust temperature to between 300deg. F 148deg. C and 350deg. F 177deg. C . Economic analysis of design options will assist in selecting the best configuration. Some of the uses for cogeneration steam are a steam heating systems b hot-water heating systems through heat exchangers c absorption chillers d steam turbine drive and combined cycle applications such as compressor or generator drives e back pressure turbines with steam exhausted to other uses f condensing turbines with condensate cycled back to heat recovery boiler feedwater and g process steam uses. 22 MIL-HDBK-1003 11 Simpo PDF Merge and Split Unregistered Version - http Section 5 DEFINITIVE DESIGNS FOR DIESEL-ELECTRIC GENERATING PLANTS Definitive Diesel-Electric Generating Plants. The Navy has several definitive designs and guide specifications for both prime duty and standby emergency duty stationary diesel-electric generating plants. Duty types are defined defined Section 2. Application of each definitive design