The chemical-manufacturing industry has stringent requirements for process equipment. Production efficiency, product quality and operational safety for both on-site personnel and the environment are critical concerns for any manufacturer of specialty chemicals investing in new or better processes.
Several years ago, the Environmental Protection Agency (EPA) began an initiative to control excessive nitrogen and phosphorus pollution entering the Gulf of Mexico through watersheds. Although phosphorus and nitrogen are nutrients needed for aquatic plant and algal growth, excess amounts can have damaging effects. Farming states were under pressure to restore their surface water quality.
Centrifugal pumps often experience repeat failures. Maintenance and reliability professionals are charged with preventing them. This four-part series explains the reasons behind repeat pump failures and uses a real-world field example involving boiler feedwater (BFW) pumps.
Part One of this series (Pumps & Systems, August 2014), discussed the new American National Standards Institute/Hydraulic Institute (ANSI/HI 9.8) design standard requirements. It also discussed how to calculate the length of a reducer (see Equation 1) and the angle of a reducer (see Figure 1).
Lr = 4 (DL – Ds) Equation 1
Lr = Length of the reducer
DL = Larger pipe diameter
Ds = Smaller pipe diameter
Countries in the Middle East and North Africa (MENA) have always been prominent food importers rather than producers. The punishing climate and topography have challenged efforts to expand the region’s food-processing indus-
try, especially in countries belonging to the Gulf Cooperation Council (GCC). Now, after decades of steadily increasing activity, the MENA food market can expect to exceed 1 trillion U.S. dollars by 2030, according to the World Bank.
Power factor (PF) is an important component of an alternating current (AC) circuit, but understanding its actual effect can be difficult. Why is PF mysterious to many of us? It has to do with the way it is explained.
PF is often defined as the ratio of the real load power to the apparent power in the circuit. Real power is the power consumed by the circuit, and apparent power is the sum of the real power and reactive power. Reactive power is often called imaginary, phantom or borrowed power. Real power is measured in watts, and reactive power is measured in volt-amps.
As the months pass, the evidence is becoming increasingly clear—North America is in the midst of a golden age of oil and natural gas production. Record levels of recovery in U.S. unconventional plays and Canadian oil-sands formations are driving vast production increases. According to the International Energy Agency, the U.S. surpassed Saudi Arabia and Russia this year as the world’s largest producer of crude oil and natural gas.
Rural wastewater utilities rarely, if ever, consider upgrading to an automated control system. Obtaining funding approval in ever-tightening budgets has always been a hurdle, but the real barrier is the lack of information technology support. Many rural municipalities operate in a 21st-century world with 20th-century assets, with their aging water infrastructure dating back to the 1940s or earlier.
The reliability of high-speed and high-pressure pumps is crucial to several industries in the Middle East and North Africa. Oil and refinery services and desalination operations, for example, depend heavily on pumps to perform consistently in demanding conditions. MENA operators should turn to practical guidelines for studying pump rotordynamics, especially the conditions that lead to dynamic malfunction and instability.
In past “Pumping Prescriptions” columns this year, I have discussed the procedure of piping size selection when given the process flow requirement and how this affects the pump’s power consumption. In this column, two computer calculation tools will be detailed. The tools are the Energy Consumption Calculator and the Pump Performance Estimator. Both can be found at pump-magazine.com/pump_magazine/pump_magazine.htm.
The Middle East oil and gas industry has shown moderate yet consistent growth during the past four years. The region has seen steady growth in investment and implementation of new projects to boost upstream production and downstream processing. This growth positively positions the Middle East oil and gas industry as it recovers from the 2008 economic crisis, when several projects were shelved because of weak global demand and a sharp dip in the global oil prices.
When facilities—whether paper mills, refineries, or chemical or waste treatment plants—decide to implement pump system improvements, the first question is always the same: Where to begin?
This month’s column looks at the pre-screening process, when plant management teams decide which system to tackle first. The pre-screening process quickly identifies which pump system has a high probability of improving plant operations, reducing total cost and increasing system uptime.
The waterfalls in the National September 11 Memorial & Museum cascade forever.
That is the designers’ vision for these 16 acres of hallowed ground, the place where the New York City skyline and the world changed in 2001. Visitors—mourners from around the globe—see the largest man-made waterfalls in the world rush as if to infinite depths from the footprints of the twin towers.
The completion of the first well stimulation project in the Middle East for a North American-developed fluid pulse technology holds the potential to add new production options for operators throughout the MENA region.
The Jordan, Knauff & Company (JKC) Valve Stock Index was up 9 percent during the last 12 months, staying under the broader S&P 500 Index, which was up 13.1 percent. The JKC Pump Stock Index was up 19.1 percent for the same time period.1
In 2011, the AMER Group started construction on the Porto Cairo Mall in Cairo, Egypt. The real estate developer, which offers mixed-use, family-oriented destinations throughout the Middle East and North Africa, planned the mall as a wide retail and commercial complex that was easily accessible to city residents. The mall is in the first settlement area beside the JW Marriot and within quick driving distance from Heliopolis, Maadi and the Cairo International Airport.
Minimizing pump downtime directly affects the bottom line. Sealless mag-drive and canned-motor pumps, commonplace in the petrochemical and power industries, enhance reliability and reduce emissions and leakage compared with more traditional “sealed” pumps. The choice between sealless and sealed pumps often involves savings in both time and money. Making the right choice can also affect the overall health and reliability of operations.
While Middle East oil & gas companies explore new fields onshore and off, mature fields in the Arabian Gulf are benefiting from advanced recovery methods that have extended their production life. Nowhere is this truer than at the world’s largest offshore oilfields, Safaniya, Upper Zakum and Manifa. Based on information from industry reports, these fields have long sated the world’s thirst for MENA oil as energy demands continue to grow exponentially. Efficient, high-performance pumps will be the key technology in propelling these fields into a new era of recovery.
The Plant Manager is responsible for general supervision of all phases of plant operations including: production, quality control, maintenance, receiving, and shipping. Responsibilities also include recruiting, hiring and training personnel and facility/physical plant up-keep and capital improvements. In addition the Plant Manager will be responsible for annual budget planning and execution. They will work closely with the production team to increase productivity and profitability within the manufacturing operation.
Most homes built before 1970 are connected to a sewer through a gravity sewer system. A gravity sewer system collects wastewater from homes and transports it to a collection line by allowing gravity to force the flow. Collection lines are pipes that are installed at a slope to keep both water flowing and solids in suspension.
The Jordan, Knauff & Company (JKC) Valve Stock Index was up 14.4 percent during the last 12 months, staying under the broader S&P 500 Index, which was up 22.1 percent. The JKC Pump Stock Index was up 24.1 percent during the same time.1
The purchase of lubrication pumps, distribution systems and connector products is a significant investment, one worthy of proper maintenance and mastery by certified technicians. Companies often carefully select and purchase high-quality pump-to-point lube systems or hydraulic hoses without an understanding of how and when to inspect this equipment. The results can be disastrous—a complete shutdown of activity, lost hours, cost overruns, and impatience among employees and managers.
Despite their simplicity, centrifugal pumps often experience repeat failures that even seasoned maintenance and reliability professionals have trouble preventing. This four-part series explains the reasons behind repeat pump failures and uses a real-world field example involving boiler feedwater pumps.
In a typical plant, pumps often are controlled by semiconductors such as microprocessors, power electronics and variable frequency drives (VFDs) to digitally link assets and provide better process control. By using “smart”
centrifugal pumps with VFD controls, plant operators can vary the pump and impeller speed, allowing the motor output to match the system requirement for improved system performance.
- These are the questions and answers from the session following the Baldor-sponsored Pumps & Systems webinar "Water Pump System Upgrades: An innovative high horsepower / low speed solution," which took place on July 24, 2014.
Q. Is this assembly suitable for wet well applications? Can you give us some detail to describe its use in these types of installations?