pump selection case study

Case Study 1: Water Circulation in a Commercial Building. In a 20-story commercial building, centrifugal pumps are used to circulate water through the HVAC system. The pumps efficiently maintain a steady flow of warm or cool water to regulate the indoor climate, demonstrating the suitability of centrifugal pumps for high-flow applications.

PUMP SELECTION, SIZING AND TROUBLESHOOTING, Kolmetz Handbook of Process Equipment Design ... The case studies will . help the engineer do the selection and sizing for the pumps base on their own ...

Thus, the details of the pump will start to emerge. 1. Before talking about a pump, consider the pipe. Velocity of liquid in pipes ranges between 3 to 10 feet per second (ft/sec). If the velocity is too slow, the dirt, sludge or other contaminants can settle. If flow is too fast, abrasive wear will reduce the life of the pipe.

a real example. ropriate and cost-effective centrifugal pump fora given duty requires strict adherence to a thorough selection process, as Eduardo Larralde and Rafael Ocampo discus. ed in the first article of this two-part series. Here they demonstrate the application of the selectio.

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Calculation results for the two pre-selected pump models are presented in Table 5. This shows that the best selection is the two-stage pump model 80/2, running at 3500 rpm, with an impeller diameter of 207.4 mm using pressure control via a VSD/bypass valve combination. Table 5. Life cycle cost results. Option 1.

I always recommend suction velocities below 10 ft/s, and 6 to 8 ft/s is even better, especially when faced with low submergence. Pump operating speed. —I caution end users not to operate pumps faster or slower than the OEM recommends, because the impeller shrouds, and blades have torque and pressure limits.

The usual checklist includes process liquid, flow, pressure, size and power, efficiency, space capacity, reliability and cost. But there are many nuances to pump selection that can make big differences in performance, reliability and cost-saving energy efficiencies. Here are five factors to always keep front of mind in pump selection: 1.

If a 1-hp submersible sump pump moving ambient temperature water is only going to start up once a month and run for 5 minutes or less, you don't need to be as finicky with the pump selection like you do when it is a 250- to 10,000-hp pump running 24/7. The sump pump's main criteria is that it does need to be reliable.

Correct pump selection is the first step to ensure this, as Eduardo Larralde and Rafael Ocampo demonstrate in this first of two articles. ... The data shown relate to an actual pump whose selection will be discussed in the case study to be presented in the second article in this two-part series. The second box shows the required scope of supply.

Other information must be provided for correct pump selection, too. For example, does the product contain solid particles? Consider also whether it is shear sensitive, if the process needs a self-priming pump, or whether a suction lift is needed. ... Case study: productivity in practice at Anglian Water. Anglian Water uses an advanced heating ...

O-Head Eliminates Excessive Vibration in Power Plant's Pumps. A US based electric company supplies power to over 300,000 customers. Owing to aging infrastructure, their circulation pumps began to experience vibration issues. This situation has been completely rectified by fitting the pumps with the ITT Goulds Pumps O-Head.

< View all Case Studies & White Papers. Bell & Gossett introduces new hydronic pump selection criteria to maximize system efficiency. This paper explains the importance of using B&G's Part Load Efficiency Value (PLEV) calculation when selecting centrifugal pumps for hydronic systems.

To improve pump reliability in all such aspects is the most technical challenge for the manufacturer and users of pump. Figure 3 : Scope of Pump Reliability. Hydraulic Requirements: It is the most important part of the pump when it comes to selection and designing as well. It includes flow rate, head, efficiency, duty point with respect to BEP ...

A case study based on an actual produced water pump application has been performed to evaluate the operational and economic benefits of low shear and coalescing produced water pump types, compared to that of conventional produced water pumps. The case study is divided into two parts. This first part presents the case and the considered pump ...

Case Study - Pump Sizing Selecting the proper pump is the most important step in the development of a piping system. The pump must be sized to handle the desired flow rate at the required ... The key to pump selection is the Electronic Pump Catalogs. The creation of a pump

However, following are limitations for all C.I. pumps. The impeller peripheral speed should not exceed 135 ft/sc. Or 41.2m/sec. Corresponding to head of 105 m (275 mm dia. Impeller trimmed from 315mm. Normal size) at 2880 rpm. When is C.I. (is 210 GR. 25 ) In that case select cast steel or cast alloy steel impeller.

Proper pump selection. ... This safety factor generally goes on top of the worst-case design scenario. ... more than 10 percent of pumps from that study were less than 10 percent efficient. A major cause was found to be improper pump selection. The general rule is that a pump and motor combo will cost about $1 per day, per horsepower of the ...

3.1. Procurement. Two studies discussed the importance of ensuring that all the correct parties are involved in the procurement of the smart infusion pumps [20,27].One study included representation from pharmacy, as well as clinicians, nursing, biomedical engineering, purchasing and human factor experts [] and the other included nursing, pharmacy, clinical engineering and physicians [].

To highlight pump selection, performance prediction, and feasibility of PAT for power-generating applications different scholars have presented review papers. ... The case study findings suggest that direct pumping can be more efficient than indirect pumping. 4.

Case Studies page . Lots of Pipes, but No Emissions . Ninety-two miles of pipes pump fluid around Delta's net-zero Fremont facility. The facility is situated with wetlands on one side, mountains on the other, and an active fault zone beneath. Performance Over a Decade . The heat pump system has not faltered or failed since deployment.

Keywords: Case study, Economic analysis, Historical development, Performance analysis, Performance improvement, Pump as turbine. 1. ... Pump selection and performance prediction. Selecting an appropriate pump as a turbine is always challenging because most pump manufacturers do not provide reverse performance data for their pumps ...

Heat Beneath Their Feet. Hidden 500 feet beneath CMUS's athletic field at the north end of the campus is a district geothermal system. One of the largest in North America, this geothermal heat pump system heats and cools 1.2 million square feet in 16 buildings and saves the university $1.5 million in energy costs each year.

Each case study has a web version and a downloadable PDF version for easy printing. To see the site located in Alaska, click the "AK" button on the left. Consider contacting the facility representative listed at the bottom of each case study if you are interested in geothermal for a similar building type.