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Electrical cost

A water transfer system is shown in Fig. P1-27. The water transfer rate is 1,500 gpm. The present system consists of an 8-in., schedule 40, 1O.OOO-ft-longcommercial steel pipe. Three options exist to expand the capacity of the system to 2,400 gpm. Option 1 is to install a larger pump and use the single line. Option […]

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Head and power output

A water transfer system is shown in Fig. P1-27. The water transfer rate is 1,500 gpm. The present system consists of an 8-in., schedule 40, 1O.OOO-ft-longcommercial steel pipe. Three options exist to expand the capacity of the system to 2,400 gpm. Option 1 is to install a larger pump and use the single line. Option

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Hydraulic requirements

To provide process energy at different locations, a manufacturing facility circulates hot Mobiltherm 600®to various units (heat exchangers) where heating is required. The Mobiltherm is heated by a heat exchanger located in the boiler room. The physical layout of the facility is illustrated in the Fig. P1-28. Preliminary requirements for a piping/pump system are required

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The storage system

A chilled-water storage system is to be evaluated. The system schematic is shown in the sketch below: The tanks are 15 ft high and SO ft in diameter. The chiller is run 14 hours a day to charge the cold-water tank. The space-cooling system consists of a series of air-handling units (AHU) that feed from

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Actual physical layout

Pipe velocities much in excess of 10 ftls should be avoided. Limit the number of sizes (ANSI schedule 40) to 4 (buildings A and B, building C, building D, and the supply/return loop to the chiller and main pump). Provide valves to isolate each pump. (Note that items 1 and 2 may do the job.)

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Scale drawing

Four buildings, shown in Fig. P1-30 as A, B, C, and D are to be cooled using a central chilled water facility, shown as Supply. The figure is considered to be close enough to a scale drawing to be used for preliminary layout purposes. Ethylene glycol, a commonly employed heat transfer liquid medium, is to

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Piping system layout

Avoid pipe velocities in excess of 10 ft/s. Provide valves to isolate each pump (items 1 and 2 may do the job) and the chiller. All pipes are to be schedule 40. The following are needed: Sketch of the actual piping system layout. Schematic of the Hardy-Cross arrangement with all pipes and loops identified. Diameters

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The mechanical room

Auric Enterprises, Inc., is converting a five-story office building into an engineering office complex.A sketch of the building is given in Fig. P1-31. The company must add a new cooling system to the building. The chiller is to be placed in the mechanical room located on the first floor. Chilled fluid is to be pumped

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Viscosity

As shown in Fig. P1-32,an underground salt dome is used to store gasoline (octane). Access to the salt dome is provided using an annular pipe arrangement. The outer pipe is schedule 160, 24-in. nominal; the inner pipe is schedule 80, 12-in. nominal. When salt water is pumped into the pipe, the octane is forced upward

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