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Warren Rupp, Inc. has developed a new, patent pending technology that optimizes the pump efficiency and utilizes adaptive optimization as pump application parameters change.
01 September 2010
Investment in R&D is vital, especially during a recession, because it allows companies to meet the demands of new technologies and diversify. So says KSB's Dr Soenke Brodersen who describes how the company's research department develops products to meet new requirements.
10 August 2010
In these energy-conscious times, pumping applications offer the potential for significant energy savings. Variable frequency drives are commonly applied for this purpose but are not the only solution available. Complementary solutions such as soft starters and energy management systems are also explored here by Jack Creamer and Grant Van Hemert of Schneider Electric.
10 August 2010
In spite of the importance of suction specific speed (S) to cavitation behaviour, some users pay little attention to this parameter when they select and size a centrifugal pump. In this article, Behshad Moradi of PSN highlights the role the S-value plays in the hydraulic characteristics of centrifugal pumps and aims to make users more aware of this important factor.
10 August 2010
This month sees the start of a three-part series that will build into a reference for commercial building packaged booster sets. This first part examines background and set design. The second part will look at variable speed booster sets, while the third will focus on high-rise building boosters.
10 August 2010
Pumps use a lot of energy, an increasingly important concern today. Here, Dipl. Ing. (FH) Jürgen Konrad looks at the latest designs and materials for containment shells fitted to magnetically-coupled pumps, which can save significant energy for quickly amortised initial outlay. Operators can profit too.
10 August 2010
Patrick Deniau of Milton Roy Europe takes a historical look at metering pumps, their long development, and the technological breakthroughs that have led to the most modern designs, including the very latest hydraulic actuated diaphragm types. Eco-design principles are now used to great effect.
02 August 2010
In this article from Algeria, A. Benretem with co-authors M. Benidir and R. Chaib discuss their study of the rheological behaviour of water-phosphate slurries containing various concentrations of solid particles. The influence of particle size, particle size distribution and concentration on the mixture's transport velocity and viscosity are examined.
02 August 2010
In the attempt to reduce CO2 emissions, biofuels are playing an increasingly important role. But the aggressive acids, high temperatures, high viscous media and strict legislation involved impose significant demands on components. KSB's Michael Bauer looks at the pump technology that is helping develop this growing sector.
20 July 2010
Robert McIlvaine and Ann James of McIlvaine Company show how extracting gas from shale deposits has become ever more economical, and discuss how pumps can play a role in this increasingly important form of energy, looking at a selection of important wells across the U.S.
14 July 2010
While World Pumps publishes many technical features, it is always good to go back to basics. Courtesy of the Waterworld museum in the UK, we present some brief insights into the development of centrifugal submersible pumps, with some recnet examples.
15 June 2010
Many of the AC drives used by the water and wastewater industry are approaching 20 years old. Even with careful maintenance there comes a point when the decision has to be taken whether to replace, upgrade or retrofit? Here we define the choices available.
09 June 2010
Reinhard Kurtz and Katrine Abraham discuss automotive industry and other surface treatment applications. They examine the issues and look at how to design pumps and seals to handle the fluids concerned. Their simple solutions allow smooth process flows without disturbances and costly downtime.
10 May 2010
Modern metering pumps are generally environmentally friendly and efficient. To ensure reliability and safety when handling hazardous media, hermetically-sealed equipment uses intelligent break-sensing and separating diaphragms, plus reliable failure recognition. A Bubb and B Freissler of ProMinent report.
10 May 2010
Environmental benefits of dry vacuum pumping, particularly for reducing pollution and operating costs, have long been appreciated and progressive vacuum users are learning how best to exploit experiences in India.
10 May 2010
As equipment and machinery becomes more complex and automated, the need to have a properly structured and funded maintenance strategy is more important than ever. A recently released white paper provides engineers with advice and guidence on the condition monitoring of rolling bearings.
10 May 2010
ERP is a strategic investment. Download this free Buyer's Guide and get all the information you need to ensure success.
28 April 2010
Give your sales and marketing team the competitive edge with the right CRM solution. Download your comparison guide now.
28 April 2010
In the market for a new enterprise-class phone system? This Toolkit has everything you need to choose the right system for your business.
28 April 2010
Condition monitoring tests are beneficial in improving both the operation and maintenance of pumping systems. Here, Ray Beebe of Monash University uses a slurry pump case study to illustrate the value of basic head-flow tests for a system where restricted access made conventional flow measeurements difficult.
20 April 2010
In the USA, the McIlvaine Company has developed a classification tool to aid decision-making processes, such as the selection of an appropriate pump for a particular application. Robert McIlvaine explains the theoretical concepts behind the system and illustrates its benefits with some practical examples.
20 April 2010
Gerhard Rohlfing discusses the current state of conditioning examination in multiphase twin screw pump systems and how it can increase pump life. He also looks at some examples in the oil and gas industry where, done correctly, it has been found to improve efficiency.
20 April 2010
ABB's Jukka Tolvanen introduces life cycle cost analysis and shows how efficient motors and AC drives can often be used to minimise lifetime costs, especially in high usage pump and fan systems
25 March 2010
Regulatory agencies in both the US and Europe are tightening controls on fugitive emissions, such as equipment leaks, as opposed to point-source emissions from reactor vents or boiler exhaust stacks. Michael Adkins and Pete Ehlers, both of Swagelok, explain how choosing the right ball valve can keep you in compliance.
10 March 2010
For many applications, VSD motors are set far away from the pumps they run, which can cause bearing damage and motor failure. Steve Hughes, managing director of REO, explains how new filter technology can protect these hidden motors.
10 March 2010
Fires in Queensland and New South Wales in August are not unheard of, but are often a forewarning of more serious fires to come once the heat of summer arrives. This makes it all the more important for firefighters and homwowners to ensure they have the best pump equipment to help fight the flames.
08 March 2010
Central heating manufacturers are developing environmentally-conscious technologies which can effectively distribute heat, while saving energy. Phil Marris discusses the technological developments in the heating industry which have made the use of heat pumps with powerful, compact radiators a reality.
08 March 2010
Choosing the most appropriate and cost-effective centrifugal pump for a given duty requires strict adherance to a thorough selection process, as Eduardo Larralde and Rafael Ocampo discussed in the first article of this two-part series. Here they demonstrate the application of the selection procedure in practice with a real-life example.
05 March 2010
In June 2008, Ole Weiner was appointed President and CEO of AxFlow Holding AB. In this article we look at how he has maintained Axflow's growth during a period when conditions throughout all areas of the processing industry have deteriorated and continue to give rise for concern.
04 March 2010
The advantages of the 'intelligent building' are the increase of user comfort as well as the reduction of operating costs. existing pump technology, such as that found in heating and air-conditioning, can contribute to this. Here we examine a flexible concept with which electronic pumps can be integrated into different building automation systems.
04 March 2010
With significant state funding being allocated for wastewater and drinking infrastructure improvements throughout the US, there will be a need to temporarily divery water flows during construction improvements. With the demand for bypass pumping systems set to grow, Del Ritz discusses how to implement a successful bypass operation.
03 March 2010
Flaring and venting of greenhouse gases during oil production contribute considerably to climate change. Most oil producing countries are preparing for the end of flaring. Hans Juergen Schoener looks at the contribution of multiphase pumping to the protection of climate and environment.
03 March 2010
This article looks at methods used to reduce the harmonic distortion produced by variable speed drives, including reactors, multi-pulse solutions and passive harmonic filters. It also refutes some of the criticisms of low harmonic drives made by some commentators.
03 March 2010
The design and operation of hot water systems typically appear to be straightforward. However, particularly in large buildings with many users, inexpert system design can result in unsatisfactory supply issues, as this article illustrates using a real-life example of a large hospital.
03 March 2010
Electrical power generation plants using various types of steam cycle place high demands on the pumps that feed and look after the steam generators. To a large extent, the pump types vary with the power plant type and come in different configurations. James Hunt provides a basic guide to pumps in power generation.
03 March 2010
The results of a study on the hydraulic performance of open-bottom canned pump intakes should aid engineers and pump users to design these systems with reduced velocity fluctuations and undesirable flow rotation. This article provides the details.
02 March 2010
Effective monitoring of thrust bearing wear is a crucial factor in preventing pump and impeller damage. This article describes the techniques available for monitoring thrust bearings on boiler feed equipment, and explains hot the technology can be successfully implemented and commissioned.
02 March 2010
Net positive suction head calculations are routinely used to establish whether centrifugal pumps will operate satisfactorily in a given process. However, extending the NPSH concept to metering pumps presents a number of difficulties, as this article explains.
02 March 2010
A look at the important development of the dry, oil-free vacuum pump, which solved the back streaming problems that had previously plagued major industry sectors for years - metallurgy, vacuum drying and semiconductor manufacture amoung them.
01 March 2010
To develop a sewage water pump for extreme operating conditions and high power consumption requires numerical simulation, advanced prototype manufacturing and experimental verification of design data. This article describes the process.
01 March 2010
Environmentally friendly dry vacuum pumps have great energy saving possibilities and have the potential for the lowest cost of ownership in chemical and biofuel processes. This article explains the benefits.
01 March 2010
To reduce the energy consumption of a parallel pumping system the whole pumping process can its components must be monitored. Simulated environments can be used in finding energy saving potential. This article looks at the different technical solutions which could help realise this, such as VSD installment or changing speed adjustment methods.
25 February 2010
There are many ways to increase the efficiency of pump. Here, lew Beck at Oconee Nuclear Station discusses two of them: firstly the use of ceramic type coatings applied to pump intervals such as the impeller and casing, and secondly through the renewal od original filts and tolerances.
25 February 2010
Decisions and actions taken during the specifying, commissioning, operation and maintenance of centrifugal pumps can all affect reliability. This is an increasingly important issue with the growing emphasis on efficiency and cost reduction. Trinath Sahoo of Indian Oil Corp provides the details.
25 February 2010
19 February 2010
Gas turbocompressors are essential for gas pumping, transport and other duties in expanding petrochemical, gas and process industry sectors worldwide. James Hunt explains the different uses and demands for gas turbocompressors, and also what is needed by way of materials and construction for optimum results.
19 February 2010
Gunther A Meyer and Wolfgang Leiber of Allweiler AG discuss the many ways in which pump operators can influence the service life and efficiency of the pumps in their charge, and therby reduce total costs. Factors affecting both rotodynamic and positive displacement pumps are considered.
19 February 2010
A consideration of coupled FEM-CFD simulations as the potential basis for a condition monitoring tool to improve the lifetime and performance of boiler feed water pumps in power plants.
19 February 2010
A consideration of the variety of factors which determine the selection of centrifugal pumps for applications involving the transport of solid-liquid mixtures. The influence of wear on the operating parameters of these pumps is also examined.
19 February 2010
Pump capacity is mainly controlled by means of throttle valves or by varying the rotational speed. This article considers the advantages and diadvantages of both methods and whether it is always useful to use speed regulation.
19 February 2010
Variable-frequency electronic drives are becoming common place for many applications. However, if operating conditions change, these drives can also adversely affect some pump components. This article looks at the changes which might occur and argues that they must be taken into consiferation when selecting the right seal.
19 February 2010
A description of an experiment involving pumping sand-laden wastewater at a German sewage plant. The results; a rubberised pump won an endurance test against pumps made from conventional hard chromium-alloy cast iron, and pumps using ceramic coatings.
18 February 2010
Bryan Orchard discusses the use of tubular casing water feed pumps in KBS's Frankenthal plant, Germany.
18 February 2010
Sabine Sulzer of Sulzer Pumps and Markus Duss of Sulzer Chemtech discuss their solutions to carbon capture challenges, using Sulzer's experience of designing and manufacturing related proprietary equipment.
18 February 2010
A look at some of the functionality and benefits of variable speed drives and how the total life cycle cost of a VSD controlled pumping system can be reduced significantly.
18 February 2010
Chris Rowe discusses how recent developments, including the current downturn, could revolusionise how professional engineers find careers.
18 February 2010
In a 2009 report, MessageLabs Intelligence revealed that an average of 3,618 new Websites per day were identified as harboring malware and other potentially unwanted programs such as spyware and adware.
17 February 2010
In the first of two articles, Eduardo Larralde and Rafael Ocampo demonstrate the importance of matching centrifugal pump characteristics with the correct application in order to ensure optimal energy use and maximun life span.
09 February 2010
How care with bearing and seal technology can extend pump life and prevent premature system failure
09 February 2010
Valérie Bischof, Prof. Bernd Stoffel and
Prof. Peter Pelz of Technische Universität Darmstadt consider whether hydrodynamic interactions in pumping systems with multiple pumps can be harnessed to optimize the performance of the whole system.
03 February 2010
Trixy Schmidt and Dagmar Hierl discuss the advantages of the stainless steel series 67 air vane motor which meets the strict criteria for use in the preparation of paper with the added benefit of high performance density.
03 February 2010
This white paper provides a rationale for effective governmental renewable energy policies worldwide.
25 January 2010
James Hunt talks to one of the four manufacturers in the world able to supply very high-pressure wet stator motor boiler circulation pumps for sub- and super-critical boilers in large power generation plant.
21 January 2010
Bryan Orchard talks to UK pump manufacturer Amarinth about the valuable source of business the Middle East's oil, gas and petrochemical industries are providing pump companies with.
21 January 2010
A look at some of the design considerations and solutions which KSB has developed for cooling duties within the power generation, refining and petrochemical industries.
21 January 2010
With desalination playing an important role in the provision of water, this article looks at the chlorine-based disinfection systems developed by Grundfos.
21 January 2010
The importance of selecting the optimal configuration and drive option for condensate extraction pumps when designing a new power plant.
18 January 2010
A discussion on the selection of the optimized pump configuration and drive option for the boiler feed pumps to be installed at new power stations.
18 January 2010
How diamond sliding surface technology can benefit mechanical seal applications and improve pump performance.
18 January 2010
How the oil + gas and desalination sectors in the Middle East are heading towards a major growth after a slowdown over the past two years.
15 January 2010
An examination of the benefits of running pumps as turbines for an efficient method of generating power, recovering energy and contributing to savings.
14 January 2010
How using pumps with an adjustable pitch angle of propeller blades can lead to cost savings.
14 January 2010
The use of high-speed camera techniques to investigate fluid flows in multiphase pumps designed for process industry applications.
05 January 2010
A look at the code devised to classify the degrees of protection for an enclosure from dust, water and impacy.
21 December 2009
The different risks fluids present while being conveyed through open and closed water piplelines.
21 December 2009
How the factors which influence the flow behaviour in submersible mixers should help to improve the design of mixing ponds for sewage sludges.
21 December 2009
The effect of replacing stuffing box packed pumps with magnet drive types in a German bitumen plant.
21 December 2009
A description of the development of a seawater injection pump for a major Middle East oil producer.
21 December 2009
An examination of the various causes of cavitation in centrifugal pumps, describing the pattern of damage each inflicts and the different methods to prevent and cure them.
18 December 2009
A look at how the demands of a growing population in Eastern Asia is affecting the power generation market
18 December 2009
Increasing pump efficiency in nuclear power stations through ceramic coatings and renewal of origninal fits and tolerances.
10 December 2009
A look at the various pumps for steam generators in electrical power generation plants.
09 December 2009
Pump opportunities in the Middle East in the desalination and refinery markets.
08 December 2009
How to choose the most appropriate bearings, grease and re-lubrication equipment.
03 December 2009