Combustible Dust Testing

Laboratory testing to quantify dust explosion and reactivity hazards

Safety Data Sheets

Develop critical safety data for inclusion in SDS documents

Gas and Vapor

Laboratory testing to quantify explosion hazards for vapor and gas mixtures

Classification of hazardous materials subject to shipping and storage regulations
Testing and consulting on the explosion risks associated with devices and processes which use or produce hydrogen
Safety Data Sheets

Develop critical safety data for inclusion in SDS documents

Thermal Stability

Safe storage or processing requires an understanding of the possible hazards associated with sensitivity to variations in temperature

Adiabatic Calorimetry
Data demonstrate the consequences of process upsets, such as failed equipment or improper procedures, and guide mitigation strategies including Emergency Relief System (ERS) design
Reaction Calorimetry
Data yield heat and gas removal requirements to control the desired process chemistry
Battery Safety

Testing to support safe design of batteries and electrical power backup facilities particularly to satisfy UL9540a ed.4

Safety Data Sheets

Develop critical safety data for inclusion in SDS documents

Cable Testing
Evaluate electrical cables to demonstrate reliability and identify defects or degradation
Equipment Qualification (EQ)
Testing and analysis to ensure that critical equipment will operate under adverse environmental conditions
Water Hammer
Analysis and testing to identify and prevent unwanted hydraulic pressure transients in process piping
Acoustic Vibration
Identify and eliminate potential sources of unwanted vibration in piping and structural systems
Gas & Air Intrusion
Analysis and testing to identify and prevent intrusion of gas or air in piping systems
ISO/IEC 17025:2017

Fauske & Associates fulfills the requirements of ISO/IEC 17025:2017 in the field of Testing

ISO 9001:2015
Fauske & Associates fulfills the requirements of ISO 9001:2015
Dust Hazards Analysis
Evaluate your process to identify combustible dust hazards and perform dust explosion testing
On-Site Risk Management
On-site safety studies can help identify explosibility and chemical reaction hazards so that appropriate testing, simulations, or calculations are identified to support safe scale up
DIERS Methodology
Design emergency pressure relief systems to mitigate the consequences of unwanted chemical reactivity and account for two-phase flow using the right tools and methods
Deflagrations (Dust/Vapor/Gas)

Properly size pressure relief vents to protect your processes from dust, vapor, and gas explosions

Effluent Handling

Pressure relief sizing is just the first step and it is critical to safely handle the effluent discharge from an overpressure event

FATE™ & Facility Modeling

FATE (Facility Flow, Aerosol, Thermal, and Explosion) is a flexible, fast-running code developed and maintained by Fauske and Associates under an ASME NQA-1 compliant QA program.

Mechanical, Piping, and Electrical
Engineering and testing to support safe plant operations and develop solutions to problems in heat transfer, fluid, flow, and electric power systems
Hydrogen Safety
Testing and consulting on the explosion risks associated with devices and processes which use or produce hydrogen
Thermal Hydraulics
Testing and analysis to ensure that critical equipment will operate under adverse environmental conditions
Nuclear Safety
Our Nuclear Services Group is recognized for comprehensive evaluations to help commercial nuclear power plants operate efficiently and stay compliant
Radioactive Waste
Safety analysis to underpin decomissioning process at facilities which have produced or used radioactive nuclear materials
Adiabatic Safety Calorimeters (ARSST and VSP2)

Low thermal inertial adiabatic calorimeters specially designed to provide directly scalable data that are critical to safe process design

Other Lab Equipment and Parts for the DSC/ARC/ARSST/VSP2 Calorimeters

Products and equipment for the process safety or process development laboratory


Software for emergency relief system design to ensure safe processing of reactive chemicals, including consideration of two-phase flow and runaway chemical reactions


Facility modeling software mechanistically tracks transport of heat, gasses, vapors, and aerosols for safety analysis of multi-room facilities


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Stay informed with our quarterly Process Safety Newsletters sharing topical articles and practical advice.


With over 40 years of industry expertise, we have a wealth of process safety knowledge to share.

Recent Posts

Advantages of Using Thermography in the Field

Posted by Fauske & Associates on 11.09.17

By: Ashley Foote, Plant Services Engineer, Fauske & Associates, LLC


Thermography is used in a wide variety of industries. At Fauske & Associates, LLC (FAI) it is primarily used in support of the nuclear industry during Cable Health and Aging Management Program (CHAMP) walkdowns to analyze suspected high temperature exposures. CHAMP walkdowns are visual inspections performed to assess adverse environments that may have unintended effects on safety related cables. This process utilizes thermography to identify locations where cables are experiencing high levels of heat exposure. This is beneficial because it is both the safest and simplest way to analyze the temperature conditions while a plant is at power; this holds true for any type of operating plant, not just nuclear plants.

What is Thermography?

Infrared thermography is the process of using thermal imaging cameras to analyze temperature profiles. Infrared cameras see the difference of temperature of objects in the frame. It is important to note that the temperature difference measured is for the surface of the objects and not for the inside of the object. Every surface absorbs, reflects, and transmits the infrared energy it is exposed to. This leads to the following equation:

WAbsorbed + WReflected + WTransmitted = 1

Where WAbsorbed, WReflected, and WTransmitted are the ratios of the absorbed energy to total exposure, reflected energy to total exposure, and transmitted energy to total exposure, respectively. The absorbed energy is related to the emissivity of the object and at equilibrium they can be assumed to be equal. The emissivity is the ratio of the actual surface emission to a perfectly emissive surface (where emissivity equals 1). The Stephan-Boltzmann law describes the relationship between energy emitted and the temperature of the object:


Where e is the emissivity, σ is the Stephan-Boltzmann constant (5.67X10-8 Wm-2K-4), T is the temperature (in Kelvin), and W is the energy emitted from the object. Infrared cameras see the total radiation of the object and not just the emitted energy. This makes it important to input the correct emissivity of an object so that the amount of reflection can be eliminated from the final results. Typically, the less shiny an object is the more emissive it is.

How do we use Thermography in the Field?

In the nuclear industry, CHAMP walkdowns are completed to meet the guidance presented in Generic Aging Lessons Learned (GALL) Report, NUREG-1801, Section XI, E1. This guidance is meant to assist with the license renewal process that all nuclear power plants must go through if they want to extend the operating life of their plant. One type of adverse environment identified during CHAMP walkdowns is localized high temperature areas. Cables are installed to meet the expected temperatures in the area; however, there are scenarios where the local temperature can be higher than expected. These high temperature areas can be caused by various circumstances; including loose or missing insulation, uninsulated components that are connected to hot components (i.e. metal valves exposed to air that are connected to an insulated, hot pipe line), or localized high temperature areas that are higher than the general room temperature. Figure 1 shows an example of a cable run near an uninsulated hot component. It shows that though the valve is mostly insulated, there is a portion sticking out of the insulation leading to an increased temperature exposure of the cable.

Figure 1 Infrared Image of a Cable Run Near a Hot Component


It can be difficult to identify adverse temperature areas visually. Figure 2 shows examples of cable that has visible signs of temperature damage. In the plants, many of these cables would be covered in metal conduit that would make it almost impossible to see damage. Without being able to see the physical signs of temperature degradation, one will have to identify all possible causes of increased temperature and then diagnose the chance of there being actual damage. Thermography allows for diagnosis of these situations very efficiently and also eliminates all of the guess work involved.

Figure 2 Cables Affected by High Temperature Environments


In addition to making the identification of high temperature areas more accurate, thermography also allows for safer work within a nuclear power plant. This is achieved by reducing dose exposure in two ways. The first way thermography reduces dose exposure is by significantly reducing the time a worker needs to be in the adverse area to diagnose the situation. Thermal cameras allow the workers to take multiple images of the component in question quickly and to analyze the images later while in a safer environment. The second way that thermography reduces dose exposure is by allowing workers to be further away from equipment they are analyzing. The further they are from radioactive equipment, the smaller the dose rate will be. Without thermography a worker may have to get very close to an object to look for visual hints of heat damage or to apply temperature monitoring equipment.

Additional Benefits of Thermography in the Field

Many industries benefit from the advantages of using thermography in the field. Thermography is often used to find faults in electrical systems without having to stop power to the system itself. This can be extremely beneficial for companies without the capacity to shut down systems for days at a time while troubleshooting issues. The ability to analyze thermal patterns without having to open junction boxes or physically touch the system makes it significantly safer for electricians to solve problems. The building industry uses thermography to detect moisture leaks, missing or failing wall insulation, and structural damage. Similarly, there are many mechanical applications for thermography, such as analyzing the functionality of heat exchangers, valves, engines, tanks, piping systems, and air handling systems. FAI is working to expand the use of thermography in the field to support equipment qualification tests, dust hazard analysis (DHA) projects, and other areas where it may provide additional benefits.

NUREG-1801, “The Generic Aging Lessons Learned (GALL) Report”
Incropera, Dewitt, Bergman, and Lavine. “Fundamentals of Heat and Mass Transfer Sixth Edition,”John Wiley & Sons, 2007.

For more information, contact Ashley Foote, Plant Services Engineer, (630) 323-8750,

FAI Process Safety Newsletter

 #cable aging 

Topics: Nuclear


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