There are a wide variety of technologies that can be used for fluid flow measurement, such as differential pressure, paddlewheel, electromagnetic, and ultrasonic. Furthermore, each technology has multiple installation configurations. It is important to understand the nuances of different technologies and installations in order to pick the right flowmeter for your application.
When purchasing a flowmeter for an HVAC application, such as boiler feed water monitoring or chilled/condenser water monitoring, we found that our customers value the ability to hot-tap (or pressure tap) a pipe to install an insertion flowmeter. This is done by installing an isolation valve in a pipe, allowing an insertion flowmeter to be placed into and removed from a live system without having to drain it. Draining a system is time consuming, costly, and generally not a good option for HVAC systems in buildings because it requires the entire system to be shut down. Permanently installing a hot-tap valve followed by an insertion flowmeter (with hot-tap capability) is an ideal alternative to a costly inline meter.
When considering an insertion flowmeter for an HVAC application, there are four key sources of error to be aware of: Continue reading “How the Dwyer Series IEF and IEFB Overcome Typical Sources of Error”
Energy costs are rising around the world. In the United States, the cost of electricity, natural gas, and coal are all expected to increase in 2020. As oil prices increase, energy costs are rising in Britain, and in Australia, the cost of electricity has skyrocketed. It will become increasingly necessary to manage costs by maintaining efficient operation of energy systems as energy prices continue to rise.
Steam is a common byproduct of energy generation in boiler systems. When energy is generated in a boiler system, heat energy is transferred to water, which generates steam used for heating. Measuring the steam produced by a boiler is the most logical way to measure boiler output, but it is extremely difficult to measure steam output accurately. In a world where energy costs are only expected to increase, it is imperative that boiler output be measured accurately in order to conserve both money and energy. Continue reading “Gas Mass Measurement”
“In the real estate industry you always hear this phrase, ‘Location, location, location.’ I think for energy management systems the key is ‘Execution, execution, execution.'”
— Sara Lisauskas, Energy Management Systems: Maximizing Energy Savings
What comes to mind when you think of the phrase “energy efficient?” Perhaps you think of LED light bulbs, electric cars, Energy Star appliances, or LEED-certified buildings. But energy efficiency isn’t limited to “green” products or certifications. Continue reading “The Key to Energy Efficiency”
We recently met with a customer in India who needed to replace a flowmeter in an Energy Monitoring System (EMS) application in a commercial shopping mall.
Energy Monitoring Systems (EMS) continuously monitor and record chiller operating data. The EMS utilizes flowmeters installed in each chiller to measure flow. Temperature sensors are located in the inlet and outlet of the evaporators and condensers. A kWh meter measures the power consumption of each chiller. The data from each of these devices is collected and recorded within the control panel, which is then sent to a report generated in the cloud. This kind of system can accurately report the data used to manage energy and operating costs.
Because the space was occupied, the application couldn’t be shut down for maintenance or repairs. This meant that we needed to look into alternative solutions that wouldn’t affect system operations with unnecessary downtime. Continue reading “Flowmeter Used in an Energy Monitoring System Application”
Even before the AHR Expo officially opened to general attendees on January 22nd, guests of Dwyer Instruments were part of a highly anticipated release and demonstration of the Insertion Electromagnetic Flow Transmitter at the company’s booth. More than a dozen individuals from the HVAC industry experienced the features and benefits of this new magmeter firsthand. Continue reading “Dwyer Releases the New Insertion Electromagnetic Flow Transmitter at AHR Expo 2018”