ESI In The News

Types of Flow Meters

Knowing the flow rate within a fluid piping system is one of the most useful measurements in understanding system operations. The equipment used to measure flow rates is typically maintained and calibrated by the plant instrumentation and control groups. Facility flow meters typically monitor custody transfer or are used as the primary elements of flow control circuit.
Read More

Flow Rate & System Operations

Knowing the flow rate within a fluid piping system is one of the most useful measurements in understanding system operations. The equipment used to measure flow rates is typically maintained and calibrated by the plant instrumentation and control groups. Facility flow meters typically monitor custody transfer or are used as the primary elements of flow control circuit.
Read More

Proper Pump Selection: Avoid Oversizing Your Pumps

Proper pump selection is more important than ever, with drastic consequences on maintenance, reliability, and efficiency. The selection process remains difficult for average users, and even contracting the work out to a reputable engineering firm does not guarantee success. In this article, we will cover centrifugal pump design, common pitfalls in the selection process, and consequences of improper selection.
Read More

5 Strategies for Handling Differing System Conditions

Last month, we discussed how a constant volume heating, ventilation and air conditioning (HVAC) system would continually pump the same flow rate of chilled water through the entire system regardless of the cooling load. This worked well when maximum cooling was needed on a hot day, but during times of low cooling load, much of the chilled water would go through the bypass. This method allowed the system to be controlled, but at a high cost. Also discussed was how centrifugal pumps connected to variable speed drives (VSD) could be used to reduce the pumping cost in a chilled water system by varying the flow rate through the system to match the system’s cooling loads.
Read More

Using Fluid Piping Software to Design Energy Efficient Pumping Stations

The need for water and wastewater capacity is continually growing on a global scale, and with rising energy costs and a greater emphasis on being green, the users and designers of pumping systems in this industry are realizing the need for more efficient designs and practices. It is estimated that water/wastewater facilities account for 35 percent of typical municipal energy budgets 1. With pumping systems responsible for much of this power consumption, design optimization can result in significant energy savings.
Read More