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

UN-DOT

Classification of hazardous materials subject to shipping and storage regulations

Safety Data Sheets

Develop critical safety data for inclusion in SDS documents

Biological

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

Radioactive

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

FERST

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

FATE

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

Blog

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.

Resources

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

Recent Posts

FAI Patents Vibration Measurement Pipe Clamps

Posted by The Fauske Team on 02.22.17
FAI Pipe Clamp (2).jpg

FAUSKE & ASSOCIATES, LLC Invention: “PIPE CLAMPS FOR VIBRATION MEASUREMENT” RECEIVES PATENT PROTECTION

Increased Data Reliability Minimizes Revenue Loss, Reduces Downtime and Produces More Precise Safety Readings 

Burr Ridge, IL-

Fauske & Associates, LLC, (FAI) the world leader in nuclear, industrial and chemical process safety has obtained patent protection for its recent invention:  “Pipe Clamps for Vibration Measurement.”

In power plants, it is important to monitor pipe vibration at all times as excessive pipe vibrations can ultimately lead to failure of the structure and result in an accident (e.g. high energy line break).  The preferred methodology to accurately monitor vibration levels is to install sensors (accelerometers) directly on the pipeline.  However, in practice this is often not feasible because of high temperature and / or radiation levels that could damage the equipment.  With this new innovation, FAI has developed a solution to make the process of monitoring pipe vibration levels easier. 

The specialized FAI pipe clamp can be used to seat vibration sensing equipment.  A beam attached to the clamp protrudes through the pipe insulation.  The beam is partially hollow and vented to promote cooling so that accelerometers can be installed on the tip of the beam outside the high temperature and / or radiation for accurate vibration level monitoring.

The dynamics of the pipe clamp have been defined by a deterministic approach as well as an experimental approach.  The experimental data provides additional confidence and refinement of the theoretical analysis.  It is important that the dynamic character of the clamp is fully defined as this data must be known to correctly interpret the measurement data from the accelerometers. 

The FAI pipe clamp has a natural frequency of about 1 kHz. All pipe vibrations below this frequency will be accurately recorded or slightly amplified (erring on the side of conservatism) at frequencies closer to 1 kHz.  This represents a major improvement compared to existing vibration measuring techniques. 

According to FAI, “The invention allows us to monitor pipe vibrations more accurately in situations where transducers cannot be mounted directly to the pipe. Specifically, the design removes over conservatism when monitoring pipe vibration so the real vibration is monitored rather than an amplified value.”

Previously, plant owners commonly installed accelerometers on pipe supports or other pipe attachments with unknown dynamics.  In a case of a resonance, the pipe vibration levels were heavily amplified (unrealistic and overly conservative), potentially forcing reduced power or an automatic shut down of the power plant, as demonstrated by a FAI customer that recently had to operate for several months at reduced power because of bad sensor placement and resonance of the attachment. 

The newly developed FAI pipe clamps cannot establish a resonance below 1 kHz, hence, providing reliable data.  The frequency of 1 kHz is sufficiently large and above expected pipe vibration frequencies which are typically in the range of 10 to 500 Hz. FAI adds that the provision of more reliable data can “help plants minimize revenue loss, reduce downtime and produce more precise safety readings.”  

Founded in 1980 by Hans Fauske (D.Sc.), Michael Grolmes (PhD) and Dr. Robert Henry (PhD), FAI became a wholly owned, independently operated affiliate of Westinghouse Electric Co. in 1986. FAI assumed early leadership roles in the acclaimed DIERS program for AIChE and the IDCOR program for the nuclear power industries. These activities led to state-of-the-art methodology and laboratory tools for characterizing chemical systems and computer models for analyzing severe accidents in commercial nuclear power plants used worldwide. Recognized worldwide for phenomenological modeling related to the prevention and accommodation of chemical and nuclear power accidents, FAI also provides advanced training and research in physics, chemical engineering, mechanical engineering, nuclear engineering, computer science and other fields. FAI is ISO- 17025 / IEC, ISO-9001, TickIT certified and maintains a 10CFR50 Appendix B Program.

FAI is also recognized for conducting comprehensive plant evaluations. FAI’s Nuclear Systems Group helps its customers enhance the availability and reliability of their operating plants while maintaining regulatory compliance, extending plant life and reducing operation and maintenance costs.  

Topics: custom engineering

cta-bg.jpg

Is My Dust Combustible?

A Flowchart To Help You Decide
Download Now