Pumps terminology

In pump terminology, the approximate energy in an imploding cavitation bubble is 358,209 ft. To convert this energy into pressure ... 

There s a language barrier between the pump manufacturers and the pump users. They use different terminology. Pump users, the operators and mechanics, use pressure gauges that read in psi, pounds per square... 

The fluid being pumped is often not well defined. Terminology like well water, industrial effluent, raw water, boiler feed water, condensate water, etc., is usually the only definition we have of the fluid being pumped. Any of these fluids can contain several concentrations of. solids that cause erosion and wear inside the pump. 

Pressure/vacuum, 435, 466 Vacuum systems, 343 Absolute pressure conversions, 363 Air inleakage, 366 Calculations, 366-375 Dissolved gases release, 368 Estimated air inleakage, table, 366 Evacuation time, 371 Maximum air leakage, chart, 367 Specific air inleakage rates, 368 Temperature approach, 375 Classifications, 343 Diagrams, 380 Pressure drop, 353 Pressure levels, 343, 352 Pressure terminology, 348 Pump down example, 381 Pump down time, 380 Thermal efficiency, 384 Valve codes, 26... 

Viscosity is a measure of a fluid s resistance to flow. The knowledge of viscosity is needed for proper design of required temperatures for storage, pumping, or injection of hazardous fluids. Define the viscosity terminologies, and provide technical data of typical liquid pollutants for illustration. 

Pumps and compressors are designed per technical specifications and standards developed over years of operating and maintenance experience. Table lO-lO lists some of these standards for pumps and compressors and for related equipment such as lubrication systems and gearboxes which, if not properly specified, could lead to many operational and maintenance problems with the pumps and compressors. These standards specify design, construction, maintenance, and testing details such as terminology, material selection, shop inspection and tests, drawings, clearances, construction procedures, and so on. 

Capillary electrophoresis is similar to chromatography in many respects, and most of the words used in chromatography are also found in CE. For example, resolution and efficiency are common to both techniques and are defined in a similar way. However, some of the terminology is different, as illustrated in Table 4.1. For example, in chromatography, a column in used to separate the analytes in electrophoresis, a capillary is used. In chromatography a pump is used to propel the sample through the column in electrophoresis, there is no external pumping system, and the... 

The study leader will specify the information that must be available to the team (and which will need to have been studied before the HAZOP meeting). The most important part is likely to be the complete P ID (or flowsheet or Engineering Line Diagram, according to local terminology). It should show all vessels, pumps, process pipework, instruments, service connections and indicate floor levels or elevations. 

Sampling is defined in the international standard ISO 5667 part 14 (ISO, 1998b) as the process of removing a portion intended to be representative of a body of water (or sludge or sediment) for the purpose of examination for various defined characteristics. As sampling involves manual procedures and the use of several different devices (e.g. flasks, pump), it will be associated with uncertainties. The terminology of sampling uncertainty is defined in Appendix A (IUPAC, 2005). 

Chlorine gas is liberated at the positive electrode and caustic soda and hydrogen are formed at the negative electrode. The hydrogen, although pure, is usually seen as a by-product of low value that may be pumped to a nearby oil refinery or burnt to raise steam. (The terminology used for electrochemical cells is outlined in Box 4.1.)... 

Before proceeding to discuss these various methods it is perhaps helpful to clarify terminology with regard to the terms time-resolved and transient RR. The latter term is used in the case where a single laser pulse is used to both photolyze and probe the sample. The term time-resolved is appropriate in cases where the beam used to probe the photo-lyzed sample is temporally delayed with respect to the photolysis pulse (the pump pulse). In such an experiment the reaction is initiated by a short photolysis pulse, and the RR spectrum is acquired using a probe pulse which is delayed with respect to the pump pulse. The temporal evolution of the system can thus be documented by performing a series of such experiments where the delay time between the pump and probe pulses is varied. 

Terminology used to describe an event that had the potential to result in an incident, but where no such event occurred. Sometimes is referred to as a Near Accident. These may include events where injury or property damage could have occurred but did not events where a major safety system failed to perform as designed, e.g., fire pump auto start malfunction or events where potential environmental damage could result. The term is actually considered a technical misnomer by some, since the technical accuracy would to refer to such an event as a near hit or near occurrence, i.e., an incident that nearly occurred, rather than an incident that nearly missed. 

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