Piping Expert Witnesses

Tucson, Arizona

Plumbing, Failure Analysis - Chemical Pipe, Petroleum Pipe, Pipe Failure, Pipe, Piping, Pipe Explosion, Pipeline Failure, Pipe Failure Analysis, Pipe Explosion, Pipeline Failures, Industrial Pipe, Industrial Piping, Oil Piping, Natural Gas Piping, Petroleum Piping, B31.3

*500+ forensic engineering cases, $500 Million+ in cases involving nearly every kind of pipe and tubing found in residential, commercial, and industrial applications *Designed piping in every state in the U.S for over 500 large chemical, petroleum, and wastewater plants *35 years experience in design and failure analysis of pipes *Pipe Explosion Specialist * Customers include Dupont Chemical, Dow Chemical, 3M, BASF, Chevron, Exxon, Shell, Texaco, Amoco, Suncor Oil Sands and Central Arizona Project *Member, ASTM committees on standards development for Stainless and Alloy Tubular Products, Copper and Copper Alloys Pipe and Tube, and Plastic Piping Systems *Lectured at universities and provided continuing education, possessing the ability to explain complex matters in simple terms to students, juries and arbitrators *ASME Certified provider of continuing education in Material Science *Performed thousands of computer simulations and stress analyses including wind and seismic analysis of...

West Fork, Arkansas

Refrigeration, OSHA - Industrial process refrigeration, cold storage, ammonia, carbon dioxide, piping, insulation, design, design review, OSHA, EPA, mechanical code analysis

I have 15 years' experience as a refrigeration contractor, followed by 18 years' experience as a graduate engineer in industrial refrigeration ammonia and CO2 applications up to 5,000 TR. My engineering experience includes design and project management positions with a D/B contractor, a large food processor, an A&E firm (Deputy Director of the Food & Beverage Group) and my current consulting business. I'm registered as a PE in 11 states and have an NCEES Record. Current committee service includes the International Institute of Ammonia Refrigeration (Standards-CM and Government Relations-VM) and the American Society of Heating, Refrigerating and Air-Conditioning Engineers (Std 15, TC 10.1, TC 10.3 and TC 10.5; VM on all). I have revised portions of chapter 2 in the 2014 and 2018 editions of the ASHRAE Refrigeration Handbook and am completing calculations of CO2 piping capacities in chapter 3. My work with the Refrigerating Engineers and Technicians Association includes vice pres...

Sunnyvale, California

Medical Devices, Intellectual Property - Mechanical Engineering, Equipment & Machinery, Medical Device, Nitinol, Biomedical, Patent, IP, Consumer Products, Failure Analysis, Fracture, Fatigue, Truck Rollover, Crashworthiness, Finite Element, FEA, Reliability, Cell Phone, IVC, Composite Material, Piping

T.Kim Parnell, PhD, PE is President of Parnell Expert Consulting. Dr.Parnell holds PhD and MSME degrees in Mechanical Engineering from Stanford University, a BES from Georgia Tech, and is a registered Professional Mechanical Engineer (PE) in the State of California. Dr.Parnell is an ASME Fellow, an IEEE Life Senior Member, and a Member of NAFEMS, SAMPE, ASMI and SAE. Parnell is Past-Chair of the IEEE Santa Clara Valley Section (IEEE-SCV) (over 13,000 members) and Past-Chair/Board Member of the IEEE Consultants' Network of Silicon Valley (IEEE-CNSV). Dr.Parnell is an experienced Expert Witness, has provided testimony in both trial and deposition, and has authored numerous expert reports, ITC and IPR declarations. He has worked extensively as an expert in medical devices, patents, product failure, product liability, and personal injury. Dr.Parnell has been retained in medical device litigation cases that are in the news.  Products include stent, stent-grafts, AAA devices, IVC F...

Jefferson City, Tennessee

Plumbing, HVAC - Plumbing, plumbing systems, plumbing codes, plumbing design, plumbing engineering, piping, hot water systems, scalding, Legionella, fuel gas systems, gas appliances, gas venting, carbon monoxide poisoning, HVAC, HVAC design, fire protection, sprinkler systems, construction defects, failure analysis

Roger W. Griffith, P.E. is a licensed, professional mechanical engineer in 18 states and has over 34 years of experience as a mechanical engineer. . He is the founder and principal of Griffith Engineering & Consulting. His experience includes plumbing, HVAC, and sprinkler system design, forensic analysis, and expert witness consulting. For the past 15 years, Mr. Griffith has provided expert witness services, including deposition and trial testimony. In addition to plumbing, HVAC and sprinkler systems, his areas of specialty include hot water system design, hot water scalding, legionella, and venting of gas appliances as it relates to carbon monoxide poisoning. Mr. Griffith is a Board Certified Diplomate Forensic Engineer (DFE) of the National Academy of Forensic Engineers (NAFE). Prior to founding Griffith Engineering in 1997, Mr. Griffith worked at the Tennessee Valley Authority (TVA), an electric utility, as a nuclear piping analyst, valve and heat exchanger specialist, mainten...

Centerville, Utah

Engineering, HVAC - Intellectual property, patent, archery, firearms, boilers, chillers, conditioning, heating, construction, construction defect, refrigeration, controls, piping, hydronic, crossbow, product, plumbing, fire suppression, sprinkler, turbine

I am a mechanical engineer specializing in the design and forensic failure analysis of HVAC, refrigeration, plumbing/piping, and fire suppression systems. I have experience designing the mechanical systems of healthcare facilities, educational facilities, industrial/manufacturing facilities, office buildings and Federal Government projects. Additionally, I spent time as a facilities engineer, evaluating existing mechanical systems, and providing recommendations as to maintenance, repair, and system upgrades. My forensic engineering experience includes investigating construction defects, mechanical equipment failures, and complex system failures involving chillers, boilers, turbines, solar-thermal systems, heating and chilled water systems, and building automation controls. I have provided expert testimony in deposition and at trial in state and federal courts of law. I have also worked as a product development engineer designing archery equipment. I have consulted in numerous ...

Renton, Washington

Mechanical Engineering, Equipment & Machinery - Mechanical engineering, industrial process, industrial design, energy modeling, energy control, steam production, fluid transfer, process analysis, heat exchange, piping, pumps

Alan Werner’s skills and background include forensic analysis in the areas of industrial process systems, industrial process equipment including pumps, fans, heat exchangers, mixers, specialty equipment, piping include safety devices, and pipe support systems. Specific experience has been gained in chemical process plants, pulp and paper mills, wood processing plants, boiler plants, chiller plants, and co-gen systems and food processing plants. Using a proprietary thermodynamic model, he is able to replicate boiler and chiller systems to duplicate normal and off-spec operations. I have designed mechanical parts and machinery, some using unusual materials and/or features. I have experience in worker sound exposure investigation and remediation, as well as "fence line" acoustical research. Trained for patent litigation. My professional licenses are in Washington, California, Florida (Ret), and British Columbia (former).