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

Got ERS? Are Emergency Relief Systems Missing From Your Relief System Design?

Posted by The Fauske Team on 08.29.18

VSP2wscreenHow do you ensure or work to continuously increase plant safety? One sure way is in the appropriate design of emergency relief systems (ERS). ERS are needed for processes where a thermal hazard exists. A thermal runaway reaction can be an unacceptable over-pressurization of the system that could result in a dangerous situation. Do you have a turnkey approach through a combination of testing and analysis, to check and address your ERS?

Your arsenal should include:

Chemical Testing

  • Tests should be performed to characterize the runaway reaction under the upset conditions of interest.
  • Are your temperature and pressure data measured and scaled to the process vessel?
  • Are you armed with state of the art tools such as Vent Sizing Package 2TM (VSP2) and Advanced Reactive System Screening ToolTM (ARSST)?

Process Simulation

  • Have you evaluated the required vent size? Tools such as Practical Emergency Vent Sizing Software (PrEVent) are necessary. 
  • The design of the existing or new ERS should be analyzed with commercial transient analysis codes for its performance in handling the effluent.
  • Depressurization of transient fluid forces should be computed by tracking momentum flux, thrust and pressure waves.

Relief System Design 0316Structural Design

  • The ERS design should be evaluated in a structural analysis code.
  • Pipe support design should be evaluated and reviewed.
  • Dynamic stress analysis of the ERS should be conducted. 
  • Code compliance should be verified against specific requirements, e.g. ASME B31.3, EN-13480, and others.

Additional Considerations

  • Effluent handling (quench tank, knockout drum) evaluations.
  • Dispersion modeling - can be a very important and often overlooked component to the ERS program. 

For more ideas, questions or discussion on a comprehensive Emergency Relief System Design Plan, please contact us.


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Topics: emergency relief system design, relief system, thermal hazard


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