Combustible Dust Testing

Laboratory testing to quantify dust explosion & reactivity hazards

Flammable Gas & Vapor Testing

Laboratory testing to quantify explosion hazards for vapor and gas mixtures

Chemical Reactivity Testing

Laboratory testing to quantify reactive chemical hazards, including the possibility of material incompatibility, instability, and runaway chemical reactions

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 safety handle the effluent discharge from an overpressure event

Thermal Stability

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


Classification of hazardous materials subject to shipping and storage regulations

Safety Data Sheets

Develop critical safety data for inclusion in SDS documents


Model transport of airborne virus aerosols to guide safe operations and ventilation upgrades


Model transport of contamination for source term and leak path factor analysis

Fire Analysis

Model transport of heat and smoke for fire analysis

Flammable or Toxic Gas

transport of flammable or toxic gas during a process upset

OSS consulting, adiabatic & reaction calorimetry and consulting

Onsite safety studies can help identify explosibility and chemical reaction hazards so that appropriate testing, simulations, or calculations are identified to support safe scale up

Mechanical, Piping, and Electrical

Engineering and testing to support safe plant operations and develop solutions to problems in heat transfer, fluid flow, electric power systems

Battery Safety

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

Hydrogen Safety

Testing and consulting on the explosion risks associated with devices and processes which use or produce hydrogen

Spent Fuel

Safety analysis for packaging, transport, and storage of spent nuclear fuel

Decommissioning, Decontamination and Remediation (DD&R)

Safety analysis to underpin decommissioning process at facilities which have produced or used radioactive nuclear materials

Laboratory Testing & Software Capabilities

Bespoke testing and modeling services to validate analysis of DD&R processes

Nuclear Overview

Our Nuclear Services Group is recognized for comprehensive evaluations to help commercial nuclear power plants operate efficiently and stay compliant.

Severe Accident Analysis and Risk Assessment

Expert analysis of possible risk and consequences from nuclear plant accidents

Thermal Hydraulics

Testing and analysis to ensure that critical equipment will operate under adverse environmental conditions

Environmental Qualification (EQ) and Equipment Survivability (ES)

Testing and analysis to ensure that critical equipment will operate under adverse environmental conditions

Laboratory Testing & Software Capabilities

Testing and modeling services to support resolution of emergent safety issues at a power plant

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 (DSC/ARC supplies, CPA, C80, Super Stirrer)

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


Our highly experienced team keeps you up-to-date on the latest process safety developments.

Process Safety Newsletter

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

In Memory of Dr. Hans K. Fauske, DSc

Posted by The Fauske Team on 12.01.21

Dr. Hans Kare Fauske, age 85, passed from this life on September 27, 2021. Hans was the beloved husband of Judith (“Judi”) Gerdes Fauske for 57 years, loving father of Hans Kristian (“Kris”) Fauske (AnnMarie Fauske) and Kirk Ivar Fauske (partner Tori Harmon), devoted grandfather of Jake, Jaden and Kayd Fauske, and loving brother to Sigmund (preceded in death Riordan Fauske). At the time of his passing Dr. Fauske was Emeritus President of Fauske & Associates, LLC, an ANS Fellow, an AIChE Fellow, and Member of the National Academy of Engineering.

Dr. Hans K. Fauske, DSc

Dr. Fauske completed his graduate education with a MSc in Chemical Engineering from the University of Minnesota and a DSc from the Norwegian Institute of Technology. Following his academic studies, he joined the staff at Argonne National Laboratory (ANL). Notable academic involvements while at ANL included thesis supervision of MSc and PhD graduate students doing research at Argonne through collaboration with the University of Chicago, including students from the University of Minnesota, University of Notre Dame and Northwestern University. While at ANL he served for two years as the director of the DOE Fast Reactor Safety Technology Management Center, responsible for the planning and management of the U.S. programs and was widely considered to be a leading world authority on fast breeder reactor safety. During this period, he was also chairman of the Argonne National Laboratory Committee A, which was responsible for the hiring and promotion of scientific and engineering staff.

In 1980, Dr. Fauske and colleagues Dr. Michael A. Grolmes and Dr. Robert E. Henry left ANL to establish Fauske & Associates, Inc. (FAI), and in 1986 FAI became a part of Westinghouse Electric Company. During the past 41 years, FAI has maintained a national and international reputation for innovation and is considered a world leader in nuclear and chemical process safety. At FAI Dr. Fauske was involved in many challenging projects covering a wide range of safety issues in both the nuclear power and chemical process industries. He served as president of FAI from 1980 to 2012 and then as FAI’s Regent Advisor through 2019.

Dr. Fauske’s career included leadership roles addressing many aspects of chemical and nuclear reactor safety including:

• Senior Consultant to the Industry Degraded Core Rulemaking program (IDCOR) that followed the accident at the Three Mile Island Unit 2 plant: He had a leadership role in initiating the MAAP computer code (now EPRI owned) that is used by utilities around the globe to assess possible accident behavior and action plans to counter that behavior, for commercial water-cooled nuclear power plants.
• Senior Technical Advisor to the Clinch River Breeder Project with responsibility for developing the severe accident energetics evaluations: This eventually led to the licensing of the liquid sodium cooled Clinch River Breeder design.
• Technical leadership of the AIChE Design Institute for Emergency Relief Systems (DIERS), which was sponsored by 28 domestic and international chemical firms: This program resulted in state-of-the-art methodologies to account for two-phase flow during venting and specialized laboratory tools (VSP2 and ARSST) to obtain the needed runaway reaction data. These methods and tools are widely used to design emergency relief systems for diverse chemical processes at leading companies and institutions around the world.
• Safety studies of possible chemical reactivity vulnerabilities were employed at the US Hanford high-level waste tanks to support Containment-In-Place as a viable long term alternative remediation strategy that has been used effectively
• Contributing author for the process safety section of Perry’s Chemical Engineering Handbook (9th edition)
• He served on the editorial boards of the Journal of Loss Prevention in the Process Industries, the International Journal of Multi-Phase Flow and the AIChE Process Safety Progress Journal

Dr. Fauske published more than 200 scientific articles and held numerous patents in the areas of nuclear and chemical process safety. Together with Dr. Henry he coauthored the book Experimental Technical Bases for Evaluating Vapor/Steam Explosions in Nuclear Reactor Safety. In addition, he was the recipient of the following prestigious awards:

Dr. Fauske presenting

• The first University of Chicago Medal for Distinguished Performance at Argonne National Laboratory in the field of Nuclear Reactor Technology (1975)
• The third recipient of the ANS Tommy Thompson Award in the field of reactor safety (1982)
• The ANS Thermal-Hydraulics Division Technical Achievement Award (1991)
• The prestigious AIChE Donald Q. Kern Award (1992) for Heat Transfer and Fluid Flow Technology
• The AIChE Robert E. Wilson Award (1996) for assuring nuclear and chemical industries safety
• The University of Minnesota Outstanding Achievement Award (2004) for worldwide impact on nuclear and chemical reactor safety, and
• The ANS George C. Lawrence Pioneering Award (2012) for Nuclear Safety

Dr. Fauske was born and raised in Bergen Norway, spoke seven languages, and recently became a U.S. citizen, something he carefully weighed for many years. Beyond his many scientific publications and awards he was an inspiring leader, patient mentor, tireless competitor, and devoted family man. He was especially proud of his sons and the grandchildren who called him “Grampy”, and he adored his wife Judi who was always his “very pretty lady”. When not engaging with his family, Hans’ favorite place to be was solving technical problems at his office chalk board, developing practical equations to better illuminate our understanding of the complex physical phenomena important to process safety.


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