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Articles 13981 - 14010 of 16058
Full-Text Articles in Entire DC Network
Resistance Network-Based Thermal Conductivity Model For Metal Foams, Karthik K. Bodla, Jayathi Y. Murthy, S V. Garimella
Resistance Network-Based Thermal Conductivity Model For Metal Foams, Karthik K. Bodla, Jayathi Y. Murthy, S V. Garimella
CTRC Research Publications
A network model for the estimation of effective thermal conductivity of open-celled metal foams is pre-sented. A nodal network representation of three aluminum foam samples from DUOCEL – 10 ppi, 20 ppi and 40 ppi – is constructed out of X-ray microtomography data obtained by computed tomography (CT) scanning of the samples using a commercial CT scanner. Image processing and 3D skeletonization are performed with commercially available image processing software. The effective thermal conductivity is estimated through a 1D conduction model, representing individual ligaments as an effective thermal resistance using the topological information from the scan data. The effective thermal …
Molten Salt Thermal Energy Storage In Thermoclines Under Different Environmental Boundary Conditions, Z. Yang, S V. Garimella
Molten Salt Thermal Energy Storage In Thermoclines Under Different Environmental Boundary Conditions, Z. Yang, S V. Garimella
CTRC Research Publications
Operation during the charge and discharge cycles of molten-salt thermoclines used for solar thermal energy storage depends strongly on the environmental boundary conditions to which the tanks are exposed. A comprehensive model which accounts for thermal transport in the molten-salt heat transfer fluid and the filler material in the tank is developed for exploring the effects of boundary conditions on thermocline performance. Heat loss from the tank under non-adiabatic boundary conditions is found to distort the temperature and salt flow distributions relative to the uniform conditions found in adiabatic thermoclines; as a result, the outflow temperature drops more rapidly in …
General Case For Deriving Four Pole Coefficients For Gas Pulsation, Nasir Bilal, Douglas Adams, Keith Novack, Jack Sauls
General Case For Deriving Four Pole Coefficients For Gas Pulsation, Nasir Bilal, Douglas Adams, Keith Novack, Jack Sauls
International Compressor Engineering Conference
No abstract provided.
Numerical Analysis Of Transient Effects On Effective Flow And Force Areas Of Compressor Valves, Rodrigo Link, Cesar Jose Deschamps
Numerical Analysis Of Transient Effects On Effective Flow And Force Areas Of Compressor Valves, Rodrigo Link, Cesar Jose Deschamps
International Compressor Engineering Conference
No abstract provided.
Advanced Design Environment For Screw Machines, Elvedin Mujic, Ahmed Kovacevic, Nikola Stosic, Ian Smith
Advanced Design Environment For Screw Machines, Elvedin Mujic, Ahmed Kovacevic, Nikola Stosic, Ian Smith
International Compressor Engineering Conference
No abstract provided.
Investigation Of Pressure Distribution And Frictional Heat On Self-Lubricated Piston Rings In Reciprocating Compressors, Dianbo Xin, Jianmei Feng, Yanjing Xu, Xueyuan Peng
Investigation Of Pressure Distribution And Frictional Heat On Self-Lubricated Piston Rings In Reciprocating Compressors, Dianbo Xin, Jianmei Feng, Yanjing Xu, Xueyuan Peng
International Compressor Engineering Conference
No abstract provided.
Cooling Of A Reciprocating Compressor Through Oil Atomization In The Cylinder, Rodrigo Kremer, Jader R. Barbosa, Cesar J. Deschamps
Cooling Of A Reciprocating Compressor Through Oil Atomization In The Cylinder, Rodrigo Kremer, Jader R. Barbosa, Cesar J. Deschamps
International Compressor Engineering Conference
No abstract provided.
Comparative Experimental Study On Wear Resistance Of Different Types Of Star Wheels In The Single Screw Compressor, Jian Li, Xiaoling Yu, Bo Hu, Quanke Feng
Comparative Experimental Study On Wear Resistance Of Different Types Of Star Wheels In The Single Screw Compressor, Jian Li, Xiaoling Yu, Bo Hu, Quanke Feng
International Compressor Engineering Conference
No abstract provided.
Advances In Numerical Modelling Of Helical Screw Machines, Ahmed Kovacevic, Nikola Stosic, Ian Keneth Smith, Elvedin Mujic
Advances In Numerical Modelling Of Helical Screw Machines, Ahmed Kovacevic, Nikola Stosic, Ian Keneth Smith, Elvedin Mujic
International Compressor Engineering Conference
No abstract provided.
Numerical Analysis For Rotating Motion Of A Rolling Piston In Rotary Compressors - Effective Factors For Characteristics Of Rotating Motion Of A Rolling Piston -, Yasutaka Ito, Hitoshi Hattori, Kazuhiko Miura
Numerical Analysis For Rotating Motion Of A Rolling Piston In Rotary Compressors - Effective Factors For Characteristics Of Rotating Motion Of A Rolling Piston -, Yasutaka Ito, Hitoshi Hattori, Kazuhiko Miura
International Compressor Engineering Conference
No abstract provided.
Static And Dynamic Analysis On R410a Scroll Compressor Components, Yaubin Yang, Yueh-Ju Tang, Yu-Choung Chang
Static And Dynamic Analysis On R410a Scroll Compressor Components, Yaubin Yang, Yueh-Ju Tang, Yu-Choung Chang
International Compressor Engineering Conference
No abstract provided.
Stresses In Reciprocating Compressor Discharge Tubes During Starting, James Robert Lenz
Stresses In Reciprocating Compressor Discharge Tubes During Starting, James Robert Lenz
International Compressor Engineering Conference
No abstract provided.
A Comprehensive Model Of A Miniature-Scale Linear Compressor For Electronics Cooling, Craig R. Bradshaw, Eckhard A. Groll, Suresh V. Garimella
A Comprehensive Model Of A Miniature-Scale Linear Compressor For Electronics Cooling, Craig R. Bradshaw, Eckhard A. Groll, Suresh V. Garimella
International Compressor Engineering Conference
No abstract provided.
Absorption Of Isobutane (R-600a) In Lubricant Oil, Moises A. Marcelino Neto, Jader R. Barbosa
Absorption Of Isobutane (R-600a) In Lubricant Oil, Moises A. Marcelino Neto, Jader R. Barbosa
International Compressor Engineering Conference
No abstract provided.
Flow Simulation Through Moving Hermetic Compressor Valves Using The Immersed Boundary Method, Jose Luiz Gasche, Tadeu Tonheiro Rodrigues, Julio Militzer
Flow Simulation Through Moving Hermetic Compressor Valves Using The Immersed Boundary Method, Jose Luiz Gasche, Tadeu Tonheiro Rodrigues, Julio Militzer
International Compressor Engineering Conference
No abstract provided.
Investigation On Ring Valve Motion And Impact Stress In Reciprocating Compressors, Yu Wang, Jianmei Feng, Yuefei Wang, Xueyuan Peng
Investigation On Ring Valve Motion And Impact Stress In Reciprocating Compressors, Yu Wang, Jianmei Feng, Yuefei Wang, Xueyuan Peng
International Compressor Engineering Conference
No abstract provided.
A Lumped Thermodynamic Model For Scroll Compressors With Special Attention To The Geometric Characterization During The Discharge Process, Evandro L. L. Pereira, Cesar J. Deschamps
A Lumped Thermodynamic Model For Scroll Compressors With Special Attention To The Geometric Characterization During The Discharge Process, Evandro L. L. Pereira, Cesar J. Deschamps
International Compressor Engineering Conference
No abstract provided.
An Algebraic Model For Transient Simulation Of Reciprocating Compressors, Cezar O. R. Negrao, Raul H. Erthal, Diogo E. V. Andrade, Luciana W. Silva
An Algebraic Model For Transient Simulation Of Reciprocating Compressors, Cezar O. R. Negrao, Raul H. Erthal, Diogo E. V. Andrade, Luciana W. Silva
International Compressor Engineering Conference
No abstract provided.
Consistent Initialization Of System Of Differential-Algebraic Equations For Dynamic Simulation Of Centrifugal Chillers, Pengfei Li, Yaoyu Li, John E. Seem
Consistent Initialization Of System Of Differential-Algebraic Equations For Dynamic Simulation Of Centrifugal Chillers, Pengfei Li, Yaoyu Li, John E. Seem
International Compressor Engineering Conference
No abstract provided.
Modeling Mitochondrial Bioenergetics With Integrated Volume Dynamics., Jason N. Bazil, Gregery T. Buzzard, Ann E. Rundell
Modeling Mitochondrial Bioenergetics With Integrated Volume Dynamics., Jason N. Bazil, Gregery T. Buzzard, Ann E. Rundell
Department of Mathematics Faculty Publications
Mathematical models of mitochondrial bioenergetics provide powerful analytical tools to help interpret experimental data and facilitate experimental design for elucidating the supporting biochemical and physical processes. As a next step towards constructing a complete physiologically faithful mitochondrial bioenergetics model, a mathematical model was developed targeting the cardiac mitochondrial bioenergetic based upon previous efforts, and corroborated using both transient and steady state data. The model consists of several modified rate functions of mitochondrial bioenergetics, integrated calcium dynamics and a detailed description of the K+-cycle and its effect on mitochondrial bioenergetics and matrix volume regulation. Model simulations were used to fit 42 …
Using A Student-Generated Survey To Inform Planning For A User-Focused Learning Commons, Sharon A. Weiner, John Weiner
Using A Student-Generated Survey To Inform Planning For A User-Focused Learning Commons, Sharon A. Weiner, John Weiner
Libraries Research Publications
A master’s comprehensive University is planning a learning commons to support undergraduate learning. The planning process included a literature review, site visits to commons, consultations with experts in the field, discussions with campus specialists, and surveys of patrons. The literature reports two primary forms of data gathering for learning commons: interview/observation and purposive surveys. This report describes the findings of a survey conducted to determine students’ perceptions of services relevant in learning commons. The findings indicated that the students wanted help with their information processing needs.
Calibrated Peer Review: A New Tool For Integrating Information Literacy Skills In Writing-Intensive Large Classroom Settings., Michael Fosmire
Calibrated Peer Review: A New Tool For Integrating Information Literacy Skills In Writing-Intensive Large Classroom Settings., Michael Fosmire
Libraries Faculty and Staff Scholarship and Research
Calibrated Peer Review™ (CPR) is a program that can significantly enhance the ability to integrate intensive information literacy exercises into large classroom settings. CPR is founded on a solid pedagogic base for learning, and it is formulated in such a way that information skills can easily be inserted. However, there is no mention of its application for information literacy in the library literature. A sample implementation of CPR in a course co-taught by science disciplinary faculty and librarians at Purdue University is presented with recommendations for optimal use of this resource. CPR is a valuable new tool that librarians can …
Transient Simulation Of Household Refrigerators: A Semi-Empirical, Quasi-Steady Approach, Bruno Borges, Christian Hermes, Claudio Melo, Goncalves Goncalves
Transient Simulation Of Household Refrigerators: A Semi-Empirical, Quasi-Steady Approach, Bruno Borges, Christian Hermes, Claudio Melo, Goncalves Goncalves
International Refrigeration and Air Conditioning Conference
No abstract provided.
A State Space Approach For The Dynamic Analysis Of Automotive Air Conditioning System, Arul Selvan Subramaniyan, Seethalakshmi Pandian
A State Space Approach For The Dynamic Analysis Of Automotive Air Conditioning System, Arul Selvan Subramaniyan, Seethalakshmi Pandian
International Refrigeration and Air Conditioning Conference
No abstract provided.
Modelica Based Dynamic Modeling Of Water-Cooled Centrifugal Chillers, Pengfei Li, Yaoyu Li, John E. Seem
Modelica Based Dynamic Modeling Of Water-Cooled Centrifugal Chillers, Pengfei Li, Yaoyu Li, John E. Seem
International Refrigeration and Air Conditioning Conference
No abstract provided.
Large Scale Application Of Vibration Sensors For Fan Monitoring At Commercial Layer Hen Houses, Yan Chen, Ji-Qin Ni, Claude A. Diehl, Albert J. Heber, Bill W. Bogan, Li-Long Chai
Large Scale Application Of Vibration Sensors For Fan Monitoring At Commercial Layer Hen Houses, Yan Chen, Ji-Qin Ni, Claude A. Diehl, Albert J. Heber, Bill W. Bogan, Li-Long Chai
School of Agricultural & Biological Engineering Faculty Publications
Continuously monitoring the operation of each individual fan can significantly improve the measurement quality of aerial pollutant emissions from animal buildings that have a large number of fans. To monitor the fan operation by detecting the fan vibration is a relatively new technique. A low-cost electronic vibration sensor was developed and commercialized. However, its large scale application has not yet been evaluated. This paper presents long-term performance results of this vibration sensor at two large commercial layer houses. Vibration sensors were installed on 164 fans of 130 cm diameter to continuously monitor the fan on/off status for two years. The …
An Adaptive Neuro-Fuzzy Inference System (Anfis) Modelling Of Oil Retention In A Carbon Dioxide Air-Conditioning System, Mehdi Mehrabi, Seyed Mehdi Pesteei
An Adaptive Neuro-Fuzzy Inference System (Anfis) Modelling Of Oil Retention In A Carbon Dioxide Air-Conditioning System, Mehdi Mehrabi, Seyed Mehdi Pesteei
International Refrigeration and Air Conditioning Conference
No abstract provided.
Control Of An Electronic Expansion Valve Using An Adaptive Pid Controller, Antonio Auguto Torres Maia, Marconi De Assis Silva, Ricardo Nicolau Nassar Koury, Luiz Machado, Alexandre Carlos Eduardo
Control Of An Electronic Expansion Valve Using An Adaptive Pid Controller, Antonio Auguto Torres Maia, Marconi De Assis Silva, Ricardo Nicolau Nassar Koury, Luiz Machado, Alexandre Carlos Eduardo
International Refrigeration and Air Conditioning Conference
No abstract provided.
Flowfield Uncertainty Analysis For Hypersonic Cfd Simulations, A B. Weaver, Alina A. Alexeenko, R B. Greendyke, J A. Camberos
Flowfield Uncertainty Analysis For Hypersonic Cfd Simulations, A B. Weaver, Alina A. Alexeenko, R B. Greendyke, J A. Camberos
School of Aeronautics and Astronautics Faculty Publications
Uncertainty quantification (UQ) in the hypersonic flow regime offers valuable information to determine physical models in need of improvement and to assist in design of vehicles and flight experiments. Here we present results of UQ analysis based on polynomial chaos method to determine flowfield and surface heat flux uncertainty under typical blunt-body re-entry conditions. The NASA Langley code, LAURA, was used for axisymmetric CFD calculations of chemically reacting hypersonic flow over FIRE-II configuration. A third order polynomial chaos (PC) method using the Gauss-Hermite quadrature was applied for determining probability density functions and moments of output quantities. Input parameters such as …
Spontaneous Transition To Superrotation In Warm Climates Simulated By Cam3, Rodrigo Caballero, Matthew Huber
Spontaneous Transition To Superrotation In Warm Climates Simulated By Cam3, Rodrigo Caballero, Matthew Huber
Department of Earth, Atmospheric, and Planetary Sciences Faculty Publications
Recent paleoclimate proxy reconstructions show that tropical surface temperatures may have been as high as 35°–40°C in the Early Cenozoic. Here, we study the tropical atmospheric circulation's response to temperatures in this range using a full-complexity atmospheric general circulation model (AGCM). We find that when equatorial surface temperatures exceed ∼33°C, the model undergoes a transition to equatorial superrotation, a state with strong annual- and zonal-mean westerlies on the equator. The transition is driven by zonal momentum convergence due to large-amplitude transient eddies on the equator. These eddies have a structure similar to the observed Madden-Julian Oscillation (MJO). The model's MJO …