Rocky Research
Director of Science and Technology at Rocky Research
Rocky Research Nov 1991 - Jan 2009
Program Manager
Rocky Research Nov 1991 - Jan 2009
Vice President of Engineering
Stirling Thermal Motors Aug 1986 - Sep 1991
Program Manager
University of Michigan Jun 1984 - Jul 1986
Research Assistant
Education:
University of Michigan 1980 - 1986
Masters, Master of Science In Mechanical Engineering, Mechanical Engineering
University of Michigan 1982 - 1985
Bachelor of Science In Mechanical Engineering, Bachelors, Mechanical Engineering
Skills:
Testing Simulations Engineering Electronics Management Systems Engineering Heat Transfer Leadership Analysis Systems Design Engineering Management Fluid Dynamics Program Management Thermal Management Aerospace Robotics Microsoft Office Project Management Embedded Systems R&D Mechanical Engineering Cross Functional Team Leadership Matlab Team Leadership Research Project Planning Solidworks Cad Finite Element Analysis Product Development U.s. Department of Defense
Uwe Rockenfeller - Boulder City NV Lance Kirol - Wolcott VT Paul Sarkisian - Boulder City NV Kaveh Khalili - Boulder City NV
Assignee:
Rocky Research - Boulder City NV
International Classification:
F25B 1500
US Classification:
62476, 623242, 62480
Abstract:
An auxiliary active heating and air conditioning system for a passenger area of a motor vehicle comprising a heat exchanger in the passenger area piped to receive conditioned heat transfer fluid, a sorption cooling system located outside the passenger area and having first and second reactors, each reactor containing a metal salt or a complex compound formed by absorbing a polar gas on a metal salt comprising a halide, nitrate, nitrite, oxalate, perchlorate, sulfate or sulfite of an alkali metal, alkaline earth metal, transition metal, zinc, cadmium, tin or aluminum, or sodium borofluoride or a double metal halide, the reactors having a heat transfer section for thermally exposing a heat transfer fluid and/or condensed polar gas refrigerant in heat exchange communication with the metal salt or said complex compound, a refrigerant loop including an evaporator piped to deliver conditioned heat transfer fluid to the heat exchanger during air conditioning, a heater for heating heat transfer fluid, and a valve assembly comprising one or more valves for directing heat transfer fluid heated by the heater. In a preferred embodiment each reactor contains a sorbent/substrate composition comprising a substrate material inert to the polar gas and incorporating the salt or the complex compound.
Recuperation In Solid-Vapor Sorption System Using Sorption Energy And Vapor Mass Flow
Kaveh Khalili - Boulder City NV Uwe Rockenfeller - Boulder City NV
Assignee:
Rocky Research - Boulder City NV
International Classification:
F25B 1708
US Classification:
62480, 62106, 62112
Abstract:
A method of carrying out recuperation between alternately absorbing and desorbing reactors in which in a first reaction cycle in a desorbing reactor a gaseous reactant is desorbed from a solid sorbent and concurrently in an absorbing-reactor the gaseous reactant is absorbed on a solid sorbent, and in a second reaction cycle, absorption and desorption are reversed in said reactors, respectively, comprising communicating the reaction chambers of the desorbing reactor with the reaction chamber of the absorbing reactor and directing a portion of gaseous reactant desorbed from the sorbent composition in the desorbing reactor near the completion of a desorbing cycle to the absorbing reactor for less than about 10 minutes prior to reversing the cycles.
Heat And Mass Transfer Apparatus And Method For Solid-Vapor Sorption Systems
Uwe Rockenfeller - Boulder City NV Lance D. Kirol - Wolcott VT Kaveh Khalili - Boulder City NV James W. Langeliers - Boulder City NV William T. Dooley - Boulder City NV
Assignee:
Rocky Research - Boulder City NV
International Classification:
F28D 1500
US Classification:
16510412, 62480, 62477
Abstract:
A sorber heat exchanger is provided with a substrate material incorporating a sorbent for reacting with a polar gas refrigerant or hydrogen. A preferred sorbent is a metal salt capable of reacting with the polar gas refrigerant to form a complex compound. The sorbent incorporating substrate is loaded into the reactor space between the heat transfer surfaces. Incorporating the sorbent into the substrate reduces sorbent migration thereby improving performance and life expectancy of the heat exchanger.
Method And Apparatus For Turbulent Refrigerant Flow To Evaporator
Kaveh Khalili - Boulder City NV, US Uwe Rockenfeller - Boulder City NV, US
Assignee:
Rocky Research - Boulder City NV
International Classification:
F25B 100 F25B 1500 G05D 2300
US Classification:
62115, 62103, 62141, 236 93 B
Abstract:
A method of reducing superheat fluctuation and improving evaporator heat transfer comprises creating turbulent flow in refrigerant supplied to the evaporator.
Uwe Rockenfeller - Boulder City NV, US Kaveh Khalili - Boulder City NV, US
Assignee:
Rocky Research - Boulder City NV
International Classification:
G06F 15/00 H05K 7/20 G05D 23/00
US Classification:
702132, 361688, 700299
Abstract:
A thermal management method of operation to cool critical heat generating components and when a critical electronic component approaches its designated maximum operation temperature or its rate of temperature increase is determined to be in excess a predetermined level, its operating speed is reduced in small increments (1% to 5%), and/or a cooling fan speed it increased in small increments, (1% to 5%), and, if necessary, operation of a variable capacity heat transfer component is induced to cool the critical component.
A composite configured to release refrigerant therefrom comprises a substrate material comprising polarized fibers of glass, polyamide, phenylene sulfide, carbon or graphite having bonded thereon a metal compound comprising a complex compound of a polar gaseous refrigerant and a metal salt and/or a hydrated metal hydroxide and/or a metal hydroxide of a metal selected from the group consisting of alkali metal, alkaline earth metal, transition metal, zinc, cadmium, tin, aluminum, or two or more thereof, at a concentration of at least about 0. 3 grams/cc of open substrate material volume, and a coating composition thereon configured to prevent release of internal gaseous refrigerant therethrough at ambient temperatures and pressure and capable of penetration of gaseous refrigerant therethrough from the composite interior at temperatures causing internal gas pressures of 15% or more above exterior pressure for such refrigerant release.
Spot Cooler For Heat Generating Electronic Components
Kaveh Khalili - Boulder City NV, US Uwe Rockenfeller - Boulder City NV, US
Assignee:
Rocky Research - Boulder City NV
International Classification:
F28F 7/02
US Classification:
16510433, 165 803, 165121
Abstract:
A cooler for heat generating electronic components comprising a heat exchange plate configured for heat exchange communication with one or more heat generating electronic components includes a fin stack having a plurality of heat exchange fins and one or more heat pipes and/or thermosyphon tubes in heat exchange communication with the heat exchange plate and said plurality of fins, and a fan for directing air to and/or from the fins, each of said fins having a centered interior circular opening or hole, the fins stacked with the holes coaxially aligned and substantially centered in the fin stack and defining an elongated cavity having a first open end adjacent to the heat exchange plate and a second open end adjacent to the fan, and an elongated insert centrally positioned lengthwise along the cylindrical cavity and having a exterior surface of revolution smaller than the diameter of the cavity and defining an airflow channel between the insert and the fin openings and wherein the exterior surface of revolution of the insert is shaped, tapered or slanted and/or the interior openings of the fins are of the same or different diameters to provide an airflow channel width increasing from the fist end to the second end.
Mobile Communications Shelter With Air Distribution Assembly
Kaveh Khalili - Boulder City NV, US Uwe Rockenfeller - Boulder City NV, US
Assignee:
Rocky Research - Boulder City NV
International Classification:
F25D 23/12
US Classification:
622592
Abstract:
A mobile communications shelter comprising a personnel accessible chamber containing racks of stacked electronic communications equipment positioned along or adjacent to interior walls of the chamber, and a refrigeration apparatus mounted outside of the chamber and configured to supply cooled air to the chamber, is characterized by an air distribution assembly having a plurality of air ducts configured for directing cooled air supplied by the refrigeration apparatus to a plurality of selected vertical levels of the equipment.