Hazards Analysis, Code Compliance & Procedure Development

Services to identify process safety hazards and facilitate compliance with established standards and codes.

Combustible Dust Testing

Laboratory testing to quantify dust explosion and 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 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


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

Fire and Explosion Modeling at Nuclear and Chemical Plants – FATE

Posted by Sara Peters on 08.16.18

By Sara Peters, Fauske & Associates, LLC

Having a plan to prevent flammability and explosion hazards in any facility is critical, especially one where there is a risk of toxic material release. Many different variables can affect the progression of these types of events. 

It occurred to Fauske & Associates, LLC (FAI) Director of Waste Technology, Jim Burelbach while reading the recent article Fire at Hanford Lab Sends 2 Workers to Hospital that it is not realistic to think that a facility can plan for every possible hazard or risk scenario.  That said, a tool that can model building accident response and aid in the development of safer planning can certainly prove invaluable to the process. 

One such tool is FATETM (Facility Flow, Aerosol, Thermal, and Explosion Model) software. “FATE software is designed to model general facility volumes (i.e., vaults, hot cells, glove boxes, trenches, lab facilities) as well as radioisotope or any aerosol/contaminant transport. It has been used for design, off-normal, and accident analyses including source term and leak path factor prediction for both nuclear and chemical accidents. Its flexibility to modify the building configuration according to size and regulatory concerns makes it a particularly versatile application for addressing multiple issues that arise in chemical and nuclear facilities,” states Dr. Burelbach.

Developed and maintained under a NQA-1 compliant QA program, FATE is the successor to computer codes used extensively for design and safety analyses for U.S. Department of Energy projects at the Hanford site and elsewhere. It has been used for design, off-normal, and accident analyses including source term and leak path factor prediction for both types of facilities. 

As an example, the below graphic illustrates how a nuclear waste storage facility was modeled with FATE at the Hanford site.


Fortunately, in this incident it appears that thanks to the quick response of a laboratory employee, no radioactive material was involved and the incident was resolved quickly.  The fact remains, however, that the hazard exists.  You don’t have to choose FATE for your building accident response analyses, but you should consider applying data from some sort of modeling tool when you develop a process safety strategy.

Your facility may have an innovative idea or need to address similar issues for which FATE can be tailored to suit. If you'd like to learn more about FATE, check out FAI's work on the Development of the Source Term Analysis Tool SAS4A-FATE for Lead-and Sodium-Cooled Fast Reactors by clicking below. 

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Topics: FATE, fire modeling, chemical, testing, Chemical modeling


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