The Monitor

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Chill Out: Get Your Sample Right with Sample Coolers

Posted by Randy Cruse on 1/18/21 8:00 AM

Numerous types of heat exchangers cover a broad range of applications, and specialty heat exchangers are often found in many kinds of industrial applications, such as downstream refineries. When a heat exchanger is used to cool a representative sample within processes for accurate analysis, it is commonly referred to as a sample cooler.

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Topics: Downstream, Steam & Water

How to Succeed with SWAS Instrumentation Best Practices

Posted by John Powalisz on 1/4/21 8:00 AM

Cycle chemistry management is the best way to help prevent, recognize and minimize potentially devastating water chemistry events in a facility. A well-planned and designed sampling system with the right instrumentation can help provide the critical insights you need to monitor cycle chemistry, protect equipment and ensure safe operation.

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Topics: Power, Steam & Water

Two Ways to Prevent Magnetite Fouling Your SWAS

Posted by John Powalisz on 12/21/20 8:00 AM

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Topics: Power, Steam & Water

Optimize Sample Cooler Temperatures for Ideal Results

Posted by John Powalisz on 11/30/20 8:00 AM

The thermal management of sample coolers is critical to the proper function of a steam and water analysis system (SWAS). Extreme temperatures can lead to erratic or unreliable data, equipment damage and unscheduled downtime. As the EPRI standard states, the goal of a sample system is to “transport and condition a sample without altering the characteristics of interest. The system parameters which need to be controlled are velocity, pressure and temperature.”

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Topics: Power, Steam & Water

Stay Ahead of a Shutdown with Regular SWAS Maintenance

Posted by Jason Thomas on 11/23/20 8:00 AM

By analyzing and monitoring chemical properties of steam and water, a steam and water analysis system ensures you are protecting the generation assets in your plant. Maintaining this system is critical to ensuring accurate results from grab sample and sample panel data. Here’s what you need to know about implementing a regular maintenance schedule for your utility’s SWAS.

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Topics: Power, Steam & Water

How to Match Pressure and Flow Valves to Your SWAS Application

Posted by AJ Percival on 9/28/20 8:00 AM

Chemical analysis of water and steam samples in utility plants requires precise control of flow and pressure. A common element of the steam and water sampling system is a pressure reducing valve to control the pressure of the sample. However, using an incorrect valve can not only damage plant and sampling equipment, but possibly injure operatorsThat’s why it’s essential to match plant applications with the correct pressure reducing valves. 

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Topics: Power, Steam & Water

Prevent Sampling Errors with Secondary Cooling Systems

Posted by John Powalisz on 9/8/20 8:00 AM

 

The goal of a steam and water analysis system (SWAS) in power generation is to properly condition the sample so that it is representative of the process. Secondary sample cooling provides a way to eliminate measurement uncertainty issues by removing the variable of temperature from the measurement. Secondary cooling also provides a temperature “cushion” when primary cooling systems are undersized or underperforming.

 

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Topics: Power, Steam & Water

How to Maximize Your SWAS Instrumentation

Posted by AJ Percival on 8/31/20 8:00 AM

A well-planned and designed steam and water analysis system (SWAS) with the right instrumentation can help provide the critical insights you need to monitor cycle chemistry, protect equipment and ensure safe operation.

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Topics: Power, Steam & Water

Problematic Sample Flow? Here's How to Solve It

Posted by Jason Thomas on 8/24/20 8:00 AM

Sample flow is a primary factor that affects the results from a steam and water analysis system (SWAS) in a cycling power plant. When sample flow is inconsistent, so are analyzer measurements – which can lead to catastrophic equipment failures. Controlling flow in a SWAS requires the appropriate equipment to eliminate analysis compensation and sources of error in measurements to improve chemical feed accuracy and cost savings.

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Topics: Power, Steam & Water

Accurately Control Your SWAS Temperatures

Posted by AJ Percival on 8/10/20 8:00 AM

 

A steam and water analysis system (SWAS) conditions, analyzes and monitors the chemical properties of the steam and water used to generate electricity. One of the primary factors that affect the results from a SWAS is sample temperature. Controlling temperature in a SWAS requires the correct equipment to eliminate analysis compensation and sources of error in measurements to improve chemical feed accuracy and cost savings.

 

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Topics: Power, Steam & Water