Pumps and piping

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  • This is a thorough revision of the definitive, classic text for any level course on refrigeration, refrigeration and air conditioning, and environmental control in buildings. It is an equipment-oriented textbook that applies theoretical results of engineering theories to refrigeration and air conditioning engineering problems. This enables the student to understand both common and uncommon problems in designing, selecting and applying air conditioning and refrigeration components and systems.

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  • The hydraulic system consists of an oil sump, one or two oil pumps, an air over oil accumulator tank, and piping to the servomotors. Typically, there are two pumps with lead and lag controls so that there is always a backup pump. Some systems will share two pumps between two units so that in an emergency one pump could be used for both units. The accumulator tank is usually sized so that in the event the pumps fail, the gates can still be closed. The size of the valve required to control the large amount of oil...

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  • A Liqui-Mover pump is a positive displacement pressure powered pump with a minimum of moving parts. The pumping action is accomplished using a positive pressure to push the liquid from the pump tank into the return line. The Liqui-Mover pump can handle high temperature and high pressure condensate without difficulty. Liqui-Mover pumps are available in nine sizes. They are available in many configurations, from individual components that are field assembled to complete packaged systems ready for connection to field piping.

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  • Pipe stress analysis calculates the stress in a piping system subject to normal operating loads such as pressure, weight, and thermal expansion, and occasional loads such as wind, earthquake, and water hammer. Because all piping systems are connected to equipment such as vessels, tanks, pumps, turbines, and compressors, the piping stress analysis also involves evaluation of the effect of the piping forces and moments to the connecting equipment. As the piping stress is controlled by the arrangement of the supports and restraints, the scope of piping stress includes also pipe supports.

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 9 AIR AND GAS COMPRESSORS AND VACUUM SYSTEMS Estimating the Cost of Air Leaks in Compressed-Air Systems 9.1 Selecting an Air Motor for a Known Application 9.4 Air-Compressor Cooling-System Choice for Maximum Coolant Economy 9.10 Economics of Air-Compressor Inlet Location 9.14 Power Input Required by Centrifugal Compressor 9.16 Compressor Selection for CompressedAir Systems 9.18 Sizing Compressed-Air System Components 9.24 Compressed-Air Receiver Size and Pump-Up Time 9.26 Vacuum-System Pump-Down Time 9.

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 25 HYDRAULIC AND PNEUMATIC SYSTEMS DESIGN Determining Response Time of PilotOperated Solenoid-Energized Spool Valves in Hydraulic Systems 25.1 Hydraulic-System Reservoir and Heat Exchanger Selection and Sizing 25.12 Choosing Gaskets for Industrial Hydraulic Piping Systems 25.19 Computing Friction Loss in Industrial Hydraulic System Piping 25.26 Hydraulic-Cylinder Clearance for Damping End-of-Stroke Forces 25.29 Hydraulic System Pump and Driver Selection 25.

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  • To get around this restriction, many diesels incorporate an air pump in the form of an exhaust-driven turbocharger or a mechanical supercharger. Forced induction can double power outputs without violating the smoke limit. And, as far as turbochargers are concerned, the supercharge effect is free. That is, the energy that drives the turbo would otherwise be wasted out the exhaust pipe as heat and exhaust-gas velocity. The absence of an air restriction and an ignition system that operates as a function of engine architecture can wrest control of the engine from the operator.

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  • Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 14 WATER-SUPPLY AND STORMWATER SYSTEM DESIGN WATER-WELL ANALYSIS 14.1 Determining the Drawdown for Gravity Water-Supply Well 14.1 Finding the Drawdown of a Discharging Gravity Well 14.3 Analyzing Drawdown and Recovery for Well Pumped for Extended Period 14.6 Selection of Air-Lift Pump for Water Well 14.9 WATER-SUPPLY AND STORM-WATER SYSTEM DESIGN 14.11 Water-Supply System Flow-Rate and Pressure-Loss Analysis 14.11 Water-Supply System Selection 14.17 Selection of Treatment Method for Water-Supply System 14.

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  • PLUMBING AND DRAINAGE FOR BUILDINGS AND OTHER STRUCTURES FACILITIES PLANNING AND LAYOUT 15.1 Water-Meter Sizing and Layout for Plant and Building Water Supply 15.1 Pneumatic Water Supply and Storage Systems 15.8 Selecting and Sizing Storage-Tank Hot-Water Heaters 15.11 Sizing Water-Supply Systems for High-Rise Buildings 15.14 PLUMBING-SYSTEM DESIGN 15.23 Determination of Plumbing-System Pipe Sizes 15.23 Design of Roof and Yard Rainwater Drainage Systems 15.29 Sizing Cold- and Hot-Water-Supply Piping 15.32 Sprinkler-System Selection and Design 15.

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  • This book incorporates selected topics on theory, revision, and practical application models for water supply systems analysis. A water supply system is an interconnected collection of sources, pipes, and hydraulic control elements (e.g., pumps, valves, regulators, tanks) delivering consumers prescribed water quantities at desired pressures and water qualities. Such systems are often described as a graph, with the links representing the pipes, and the nodes defining connections between pipes, hydraulic control elements, consumers, and sources.

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