Category » White Papers

There were 18 articles found in this category:

1. How Not to Save Energy by Installing a High Efficiency Motor
   As Seen in the June 2011 Issue of Plant Engineering Magazine Introduction The Energy Independence and Security Act of 2007 (EISA), which mandates that all new motors sold in the United States must meet a minimum motor efficiency, went into effect on December 19, 2010. The law doesn’t app ...
2. Value of the System Resistance Curve (Part 2)
   System Operation with a System Resistance Curve Introduction This article is a continuation of the newsletter article dealing with the System Resistance Curve. As discussed in the last installment we saw how a system curve was created by calculating the head loss for each pipeline in the system ...
3. Value of the System Resistance Curve (Part 3)
   This is the last installment of the three part series on the System Resistance Curve. In this section we will explore the difficulties of generating a system resistance for piping system with multiple destinations. We will also see how this type of system can be better understood using a Pump Sy ...
4. What Information is needed to Accurately Model a Real-world Piping System in PIPE-FLO?
   Introduction One common support question we get is "What information is needed to accurately model a real-world piping system in PIPE-FLO?" The answer to that question is based on the amount of detail that's placed into the model: the more detailed the model the closer it represents the physica ...
5. Value of the System Resistance Curve (Part 1)
   Introduction This knowledge base article describes the value of a system resistance curve in understanding of how the various elements in a fluid piping system operate together. System resistance curves can be used to graphically determine flows and pressures in process systems where there is ty ...
6. How Pressure Independent Control Valves Work
   Introduction The Pressure Independent Control Valve (PICV) technology was brought to market 18 years ago. This technology has now matured and is accepted as a proven application for optimizing hydronic system delta T, enhancing system performance and reducing energy cost. A high quality, indus ...
7. Energy Assessments for Pumping Systems
   Introduction The US Department of Energy’s (US DOE) Industrial Technologies Program has created a Save Energy Now program with the goal of reducing the country’s energy intensity by 25% in the next 10 years. Part of the program is to encourage companies to increase the energy efficie ...
8. How to Model a Pressure Independent Control Valve in PIPE-FLO
   Introduction The use of Pressure Independent Control Valves (PICVs) has gained wide acceptance in many HVAC chilled and heating water applications. Quality PICVs with high turndown provide accurate control of flow rate regardless of the differential pressure fluctuations across the valve. This a ...
9. VFD Pumps Can Cut Energy Costs but Static Head Reduces Savings
   The pump affinity rules describe how pump flow rate (Q), total developed head (H), and power consumption (P) change with a change of impeller speed (N) for a centrifugal pump or fan, and are shown in Equation 1 below. Since the flow rate changes in direct proportion to the speed, and head change ...
10. Running Dissimilar Pumps in Parallel
    When running pumps in parallel like the system shown in Figure 1, it is generally agreed upon that the pumps should be identical. However, there may be applications or situations where it is necessary to run dissimilar pumps in parallel. For example, if it were necessary to trim the impellers ...
11. Design Energy Efficient Pumping Stations with PIPE-FLO
    Article Published in World Water November/December, 2008 by Roy Lightle, Application Engineer Fluid piping software can be used to design highly energy efficient and cost effective pumping systems. Roy Lightle of Engineered Software Inc. explains how PIPE-FLO® Professional software could f ...
12. Gaining a Clear Picture of Pump Operation
    When a piping system problem is found, the first response often is to add a pump. Using a piping system analysis tool can be a better solution. In this paper we discuss what a clear picture of piping system operation can provide for the pump system trouble-shooter. Gaining a Clear Picture of Pum ...
13. Using Fluid Flow Software in Plant Operations
    Fluid flow software provides a clear picture of how a piping system operates by calculating the flow rates and pressures in the system. Initially this software was mainly used to design the piping system, but recently more plant personnel are using this type of software to simulate the operation ...
14. Fluid Flow Software vs. Spreadsheets
    The traditional approach for sizing pipelines in fluid piping systems is done using spreadsheet programs. These provide a platform for organizing data and performing the single pipeline calculations for pipeline friction loss. However, in order to sustain a competitive advantage in today's mark ...
15. Using a Piping System Model for Process Safety Management
    This article describes how commercially available fluid piping software can be an integral tool in developing and implementing a PSM program. Introduction A Process Safety Management of Highly Hazardous Chemicals (PSM) program is mandated by OSHA (standard, 29 CFR1910.119) to prevent the unwante ...
16. Using PIPE-FLO to Design New HVAC Chilled Water Systems
    Introduction After talking with our customers at engineering firms serving the commercial HVAC market, we discovered they use PIPE-FLO® primarily when adding to or troubleshooting existing HVAC piping systems. Much to our surprise, the majority of our customers in this market continue to u ...
17. Piping System Model as a Life Cycle Document
    This article describes how fluid flow software and their computerized piping system models are rapidly being recognized as valuable life cycle documents by the owners and operators of the piping systems. Introduction When designing piping systems, a variety of documents are created providing the ...
18. Streamlining Control Valve Selection & Evaluation Process Using Electronic Data Exchange
    Introduction In every major piping project, technical information is exchanged between the various stakeholders; specifically the plant owner, engineering design firm, purchasers, suppliers, contractors, operations, and maintenance. This information is acquired during the design process and is ...