Vahid Motevalli | Pennsylvania State University, Harrisburg (original) (raw)

Papers by Vahid Motevalli

Research paper thumbnail of A proposal for a model curriculum in fire safety engineering

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Research paper thumbnail of iMakerSpace Best Practices for Shaping the 21st Century Workforce

Technologies

Innovations in engineering education are undergoing a noticeable transformation. Higher education... more Innovations in engineering education are undergoing a noticeable transformation. Higher education institutions are practicing distance education, remote laboratories, studio pedagogies and several other approaches in order to increase their students’ retention, success, and preparedness for the job market. In engineering education, maker spaces have become popular in the last ten years in universities as well as community colleges, high schools and community innovation hubs. A large number of engineering colleges have allocated significant spaces, and at some universities entire buildings, as maker spaces to be used for curricular and extracurricular activities. Success stories of these types of spaces are well documented. This paper describes the core activities and programs held at Tennessee Tech University’s maker space called ‘iMakerSpace.’ Accomplishments include several innovative workforce development activities. The impact and effectiveness of the iMakerSpace, presented thro...

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Research paper thumbnail of iMakerSpace Model: Shaping the 21st Century Workforce

Innovations in engineering education are undergoing a noticeable transformation. Higher education... more Innovations in engineering education are undergoing a noticeable transformation. Higher education institutions are practicing distance education, remote laboratories, studio pedagogies and several other approaches in order to increase their students’ retention, success, and preparedness for the job market. In engineering education, maker spaces have become popular in the last ten years in universities as well as community colleges, high-schools and community innovation hubs. A large number of engineering colleges have allocated significant spaces, and at some universities entire buildings as maker spaces to be used for curricular and extracurricular activities. Success stories of these types of spaces are well documented. This paper describes the activities and programs held at Tennessee Tech University’s maker space called ‘iMakerSpace.’ These accomplishments include several workforce development activities. The impact and effectiveness of the iMakerSpace is evaluated through analy...

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Research paper thumbnail of Effect of Solid Fuel Particle Size on Burning Rate Using Computational Analysis

Proceedings of the World Congress on Momentum, Heat and Mass Transfer, 2016

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Research paper thumbnail of The Need for a National Review of the Federal Fire Safety R&D Issues and Activities

Journal of Applied Fire Science, 1999

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Research paper thumbnail of Characterization of the confined ceiling jet in the presence of an upper layer in transient and steady-state conditions

Research Laboratory of the National Institute of Standards and Technology under grant number 60NA... more Research Laboratory of the National Institute of Standards and Technology under grant number 60NANBOD1049. The statements and conclusions contained in this report are those of the authors and do not necessarily reflect the views of the National Institute of ...

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Research paper thumbnail of Flame Radiation Distribution From Fires

Fire Safety Science, 1994

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Research paper thumbnail of Application of Electric Vehicle System Design to Grand Prix EV Kart

SAE Technical Paper Series, 2011

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Research paper thumbnail of Cross-Correlation Velocimetry for Measurement of Velocity and Temperature Profiles in Low-Speed, Turbulent, Nonisothermal Flows

Journal of Heat Transfer, 1992

A technique utilizing thermocouple pairs as sensors to measure velocity and temperature profiles ... more A technique utilizing thermocouple pairs as sensors to measure velocity and temperature profiles in low-speed, turbulent, nonisothermal flows is described here. In this technique, Cross-Correlation Velocimetry (CCV), the temperature-time records from a pair of thermocouples, one downstream of the other, are cross-correlated to determine the flow’s preferred mean velocity while temperature is measured directly. The velocity measurements have undergone extensive verification using hotwire, pitot tube, and Laser-Doppler Velocimetry to determine the degree of confidence in this technique. This work demonstrates that the CCV technique is quite reliable and can measure the mean preferred component of the convective velocity with better than ±5 percent certainty. Application of this technique to the measurement of velocities in a ceiling jet induced by a fire plume is briefly presented here.

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Research paper thumbnail of On water mist fire suppression mechanisms in a gaseous diffusion flame

Fire Safety Journal, 1998

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Research paper thumbnail of Material Pyrolysis Properties, Part II: Methodology for the Derivation of Pyrolysis Properties for Charring Materials

Combustion Science and Technology, 1995

A methodology for deriving material pyrolysis properties is proposed and validated by using three... more A methodology for deriving material pyrolysis properties is proposed and validated by using three charring materials (pure cellulose, and two different particle boards designated as N and F). The methodology uses experimental data obtained in a pyrolysis apparatus together with an accurate integral thermal pyrolysis model for the charring pyrolysis process (see CST, 88, 309-328, 1993). The effects of various

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Research paper thumbnail of Flame Radiation Distribution From Fires

Fire Safety Science, 1994

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Research paper thumbnail of Quantifying Metrics of External Airport Risk Exposure in Vicinity of Public Use, Nontowered Airports

Transportation Research Record: Journal of the Transportation Research Board, 2010

Page 1. therefore be critical to mitigate any subsequent increased external risk as well as facil... more Page 1. therefore be critical to mitigate any subsequent increased external risk as well as facilitate societal acceptance of risk exposure. With-out societal acceptance, the introduction of high-volume operations at nontowered airports could be forestalled. ...

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Research paper thumbnail of Modeling Hazard and Threat Risks to Populations Surrounding Public-Use, Non-Towered Airports due to General Aviation Operations

Volume 15: Safety, Reliability and Risk; Virtual Podium (Posters), 2013

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Research paper thumbnail of Aviation Safety Priorities in Emerging Air Transport Systems

Journal of Aircraft, 2008

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Research paper thumbnail of Flame Length Measurements of Burning Fuel Puffs

Combustion Science and Technology, 1993

... This is certainly unexpected and a possible cause may be the difference between the present p... more ... This is certainly unexpected and a possible cause may be the difference between the present puff generation mechanism and that of aqueous experiments (Johari, 1992 ... Figure 7 is a plot of normalized flame length versus duty-cycle for injection times of 25, 50, 100, and 150 ms. ...

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Research paper thumbnail of Modeling Hazard and Threat Risks to Populations Surrounding Public-Use, Non-Towered Airports due to General Aviation Operations

Volume 15: Safety, Reliability and Risk; Virtual Podium (Posters), 2013

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Research paper thumbnail of Numerical Analysis of the Effects of Solid Metal Fuel Particle Characteristics on the Combustion Process

ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference, Volume 1, 2007

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Research paper thumbnail of Positive ion chemistry related to hydrocarbon flames doped with CF3 Br

International Journal of Mass Spectrometry and Ion Processes, 1992

... 95 Elsevier Science Publishers BV, Amsterdam Positive ion chemistry related to hydrocarbon fl... more ... 95 Elsevier Science Publishers BV, Amsterdam Positive ion chemistry related to hydrocarbon flames doped with CF3 Br Robert A. Morris', Eileen R. Brown a,1,Z ... The value of 3.3 x 10' cm3 s' for reaction (4) measured by Heckel and Hanrahan [6] in an ion sourcetimeofflight mass ...

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Research paper thumbnail of The Need for a National Review of the Federal Fire Safety R&D Issues and Activities

Journal of Applied Fire Science, 1999

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Research paper thumbnail of A proposal for a model curriculum in fire safety engineering

Bookmarks Related papers MentionsView impact

Research paper thumbnail of iMakerSpace Best Practices for Shaping the 21st Century Workforce

Technologies

Innovations in engineering education are undergoing a noticeable transformation. Higher education... more Innovations in engineering education are undergoing a noticeable transformation. Higher education institutions are practicing distance education, remote laboratories, studio pedagogies and several other approaches in order to increase their students’ retention, success, and preparedness for the job market. In engineering education, maker spaces have become popular in the last ten years in universities as well as community colleges, high schools and community innovation hubs. A large number of engineering colleges have allocated significant spaces, and at some universities entire buildings, as maker spaces to be used for curricular and extracurricular activities. Success stories of these types of spaces are well documented. This paper describes the core activities and programs held at Tennessee Tech University’s maker space called ‘iMakerSpace.’ Accomplishments include several innovative workforce development activities. The impact and effectiveness of the iMakerSpace, presented thro...

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Research paper thumbnail of iMakerSpace Model: Shaping the 21st Century Workforce

Innovations in engineering education are undergoing a noticeable transformation. Higher education... more Innovations in engineering education are undergoing a noticeable transformation. Higher education institutions are practicing distance education, remote laboratories, studio pedagogies and several other approaches in order to increase their students’ retention, success, and preparedness for the job market. In engineering education, maker spaces have become popular in the last ten years in universities as well as community colleges, high-schools and community innovation hubs. A large number of engineering colleges have allocated significant spaces, and at some universities entire buildings as maker spaces to be used for curricular and extracurricular activities. Success stories of these types of spaces are well documented. This paper describes the activities and programs held at Tennessee Tech University’s maker space called ‘iMakerSpace.’ These accomplishments include several workforce development activities. The impact and effectiveness of the iMakerSpace is evaluated through analy...

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Research paper thumbnail of Effect of Solid Fuel Particle Size on Burning Rate Using Computational Analysis

Proceedings of the World Congress on Momentum, Heat and Mass Transfer, 2016

Bookmarks Related papers MentionsView impact

Research paper thumbnail of The Need for a National Review of the Federal Fire Safety R&D Issues and Activities

Journal of Applied Fire Science, 1999

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Characterization of the confined ceiling jet in the presence of an upper layer in transient and steady-state conditions

Research Laboratory of the National Institute of Standards and Technology under grant number 60NA... more Research Laboratory of the National Institute of Standards and Technology under grant number 60NANBOD1049. The statements and conclusions contained in this report are those of the authors and do not necessarily reflect the views of the National Institute of ...

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Research paper thumbnail of Flame Radiation Distribution From Fires

Fire Safety Science, 1994

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Research paper thumbnail of Application of Electric Vehicle System Design to Grand Prix EV Kart

SAE Technical Paper Series, 2011

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Cross-Correlation Velocimetry for Measurement of Velocity and Temperature Profiles in Low-Speed, Turbulent, Nonisothermal Flows

Journal of Heat Transfer, 1992

A technique utilizing thermocouple pairs as sensors to measure velocity and temperature profiles ... more A technique utilizing thermocouple pairs as sensors to measure velocity and temperature profiles in low-speed, turbulent, nonisothermal flows is described here. In this technique, Cross-Correlation Velocimetry (CCV), the temperature-time records from a pair of thermocouples, one downstream of the other, are cross-correlated to determine the flow’s preferred mean velocity while temperature is measured directly. The velocity measurements have undergone extensive verification using hotwire, pitot tube, and Laser-Doppler Velocimetry to determine the degree of confidence in this technique. This work demonstrates that the CCV technique is quite reliable and can measure the mean preferred component of the convective velocity with better than ±5 percent certainty. Application of this technique to the measurement of velocities in a ceiling jet induced by a fire plume is briefly presented here.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of On water mist fire suppression mechanisms in a gaseous diffusion flame

Fire Safety Journal, 1998

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Material Pyrolysis Properties, Part II: Methodology for the Derivation of Pyrolysis Properties for Charring Materials

Combustion Science and Technology, 1995

A methodology for deriving material pyrolysis properties is proposed and validated by using three... more A methodology for deriving material pyrolysis properties is proposed and validated by using three charring materials (pure cellulose, and two different particle boards designated as N and F). The methodology uses experimental data obtained in a pyrolysis apparatus together with an accurate integral thermal pyrolysis model for the charring pyrolysis process (see CST, 88, 309-328, 1993). The effects of various

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Flame Radiation Distribution From Fires

Fire Safety Science, 1994

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Quantifying Metrics of External Airport Risk Exposure in Vicinity of Public Use, Nontowered Airports

Transportation Research Record: Journal of the Transportation Research Board, 2010

Page 1. therefore be critical to mitigate any subsequent increased external risk as well as facil... more Page 1. therefore be critical to mitigate any subsequent increased external risk as well as facilitate societal acceptance of risk exposure. With-out societal acceptance, the introduction of high-volume operations at nontowered airports could be forestalled. ...

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Modeling Hazard and Threat Risks to Populations Surrounding Public-Use, Non-Towered Airports due to General Aviation Operations

Volume 15: Safety, Reliability and Risk; Virtual Podium (Posters), 2013

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Aviation Safety Priorities in Emerging Air Transport Systems

Journal of Aircraft, 2008

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Flame Length Measurements of Burning Fuel Puffs

Combustion Science and Technology, 1993

... This is certainly unexpected and a possible cause may be the difference between the present p... more ... This is certainly unexpected and a possible cause may be the difference between the present puff generation mechanism and that of aqueous experiments (Johari, 1992 ... Figure 7 is a plot of normalized flame length versus duty-cycle for injection times of 25, 50, 100, and 150 ms. ...

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Modeling Hazard and Threat Risks to Populations Surrounding Public-Use, Non-Towered Airports due to General Aviation Operations

Volume 15: Safety, Reliability and Risk; Virtual Podium (Posters), 2013

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Numerical Analysis of the Effects of Solid Metal Fuel Particle Characteristics on the Combustion Process

ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference, Volume 1, 2007

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Positive ion chemistry related to hydrocarbon flames doped with CF3 Br

International Journal of Mass Spectrometry and Ion Processes, 1992

... 95 Elsevier Science Publishers BV, Amsterdam Positive ion chemistry related to hydrocarbon fl... more ... 95 Elsevier Science Publishers BV, Amsterdam Positive ion chemistry related to hydrocarbon flames doped with CF3 Br Robert A. Morris', Eileen R. Brown a,1,Z ... The value of 3.3 x 10' cm3 s' for reaction (4) measured by Heckel and Hanrahan [6] in an ion sourcetimeofflight mass ...

Bookmarks Related papers MentionsView impact

Research paper thumbnail of The Need for a National Review of the Federal Fire Safety R&D Issues and Activities

Journal of Applied Fire Science, 1999

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