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 Expert  108218

Expert in Heat Pipes and Cryogenics

Available for your Consulting and Expert Witness Needs

Colorado (CO)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
Expert has an international reputation in heat pipe analysis and design. He has done extensive modeling and testing to predict and verify heat pipe performance for both space and terrestrial applications. He has pioneered the performance modeling of gravity-assisted heat pipes and made significant contributions to the understanding of entrainment and flooding in two phase flow.

heat pipe design


heat pipe modeling

Expert has been involved in designing, building, and testing heat pipes that operate over the entire temperature range from cryogenic to liquid metal. His work has included extensive performance modeling of heat pipes that have been extensively verified by experimental data. Expert is familiar with both the National and International heat pipe community and has published extensively in the area of heat pipes.

heat pipe

A significant fraction of Expert's technical career has been spent in the subspecialty of cryogenics. He has been involved in applications using superconductivity including high temperature superconductors. Expert headed a development team that built and tested the first Carnot Cycle magnetic refrigerator.



Expert has extensive experience in the design and application of superconducting magnets. He led the development of a prototype conduction magnetic refrigerator operating at 4 K. He is currently directing an effort to apply magnetic separation to the field of environmental remediation and waste minimization. His expertise in cryogenics involves superconducting magnets, the behavior of materials at low temperature, and heat transfer and thermal insulation systems.


superconducting magnet


superconducting device


thermal insulation system

As stated above, Expert has been involved in the development of high gradient magnetic separation for environmental remediation and waste minimization. His research group has applied this technology to the remediation of radioactive contaminated soils and wastewater. Currently he is investigating applications for heavy metal cleanup of mine tailings and industrial effluents.

magnetic separation

Expert has a wealth of experience in the modeling of complex thermal systems. He has done modeling of spacecraft environment control systems, and performance modeling of cryogenic components. In addition, he was principal investigator for the development of a comprehensive heat pipe analysis code that is widely utilized by his peers.


heat transfer modeling


heat transfer

Thermal modeling has been a focus of Expert's technical activities. He has considerable experience in the thermal modeling of spacecraft, heat pipes, and cryogenic systems on both the system and subsystem levels. The vast majority of these modeling activities have benefited from experimental data.


thermal modeling

Expert has experience performing safety analyses for systems where high pressure or elevated temperatures may result in personnel injury or equipment damage. He has developed computer models to assist in the design and evaluation of appropriate safety shielding for these systems. This capability is often used in hazards analysis and in the development of safe operation procedures (SOP).

safety analysis

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Denver, Colorado;  Colorado Springs, Colorado;  Aurora, Colorado;  Fort Collins, Colorado;  Arvada, Colorado;  Westminster, Colorado;  Boulder, Colorado;  Greeley, Colorado;  Longmont, Colorado;  and Cheyenne, Wyoming.

Often requested
with this expert:

Pressure Vessels, Tanks, LNG Tanks, Refrigerated Tanks,...
Pipe and Tank Insulation
Thermal and Fluid Systems Engineering Design, Analysis,...
Weld Structure, Tanks, Vessels

Year   Degree   Subject   Institution  
1977   Ph.D.   Mechanical Engineering   Colorado State University-Fort Collins  
1968   M.S.   Mechanical Engineering   Colorado State University-Fort Collins  
1967   B.S.   Mechanical Engineering   Colorado State University-Fort Collins  

Work History:
Years   Employer   Title   Responsibilities

1989 to


Expert's Firm


Team Leader


Team Leader Cryogenics Section; Responsible for Cryogenics Research in Superconductivity, Cryocoolers, Magnetic Separation.

1985 to 1989


Astronautics Technology Center


Program Manager


Program manager Thermomagnetic Device Development, Applications for Magnetic Refrigeration.

1978 to 1985


Los Alamos National Lab


Research Scientist


Technical Staff Member, Heat Pipe Development Group. R&D in Liquid Metal and Ambient Temperature Heat Pipe Applications.

1983 to 1984


Joint Research Center of European Communities Ispra, Italy


Guest Scientist


Heat Pipe R&D

1976 to 1977



Engineering Consultant


1968 to 1977


Martin Marietta Aerospace


Senior Engineer


Project Manager Thermal Analysis Group. Thermal Modeling, Testing and Design.

Career Accomplishments:

Expert is a member of the ASME and AIAA.


He is a Registered Professional Engineer in the state of Colorado.


Expert was on the International Heat Pipe Conference Organizing Committee (1984) and the Cryogenic Engineering Conference Organizing Comittee (1990).

Publications and Patents Summary

He has written 75 technical publications in heat transfer, heat pipes, cryogenics, and environmental remediation. He has four patents.

Consulting Services:
Selected Consulting Examples:
  • Expert has consulted on cryogenic heat pipe design, modeling, and testing.
  • He has consulted on thermal comfort modeling and analysis for a radiant heater manufacturer.
Recent Client Requests:
  • Expert in heat pipe design for consulting on the mechanical design of a low cost finned heat pipe.
  • Expert in evaporator condenser design needed for consulting on Heat exchanger design.
  • Expert for consulting on Cryogenic Expert for LNG
  • Expert for cryo genic for consulting on for the development of a buckling pin relief valve in cryo service.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Expert Witness Experience Summary:
He provided expert witness testimony/deposition for an insurance company litigation in a state court concerning heat pipes.
Recent Litigation Client Requests:
  • Expert for consulting on value of used and damaged cryogenic tanks.
  • Expert in pipe insulation for litigation involving cryogenic piping system that failed.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

Additional Skills and Services:

Expert co-developed the ASME Short Course on Heat Pipe Technology.

Supplier and Vendor Location and Selection

Expert has experience locating vendors of: heat pipes, magnetic separators, and superconducting magnets.

He has access to: printed material, databases, and personal contacts.


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