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Articles 108421 - 108450 of 1337732

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Thermal Modeling Of Industrial Environments Using Transient 0d And 1d Models, Jordi Vera, Octavi Pavon, Assensi Oliva, Deniz Kizildag, Oriol Sanmartí, Domingo Alcalá Jan 2024

Thermal Modeling Of Industrial Environments Using Transient 0d And 1d Models, Jordi Vera, Octavi Pavon, Assensi Oliva, Deniz Kizildag, Oriol Sanmartí, Domingo Alcalá

International High Performance Buildings Conference

No abstract provided.


Set Of Performance Correlations For Reciprocating Compressor Covering Synthetic And Hydrocarbon Refrigerants, Owen Doughty, Cordin Arpagaus, Stefan S. Bertsch, Leon P. M. Brendel Jan 2024

Set Of Performance Correlations For Reciprocating Compressor Covering Synthetic And Hydrocarbon Refrigerants, Owen Doughty, Cordin Arpagaus, Stefan S. Bertsch, Leon P. M. Brendel

International Compressor Engineering Conference

No abstract provided.


Semi-Supervised Learning Algorithm For Running-In Analysis On Compressors, Jonatan Leandro Machado, Gabriel Thaler, Rodolfo César Costa Flesch, João Paulo Zomer Machado Jan 2024

Semi-Supervised Learning Algorithm For Running-In Analysis On Compressors, Jonatan Leandro Machado, Gabriel Thaler, Rodolfo César Costa Flesch, João Paulo Zomer Machado

International Compressor Engineering Conference

No abstract provided.


Oil Temperature Characterisation In A Direct Suction Scroll Compressor, Nicolás Gómez Parada, Francisco Barceló Ruescas, José Gonzálvez Maciá Jan 2024

Oil Temperature Characterisation In A Direct Suction Scroll Compressor, Nicolás Gómez Parada, Francisco Barceló Ruescas, José Gonzálvez Maciá

International Compressor Engineering Conference

No abstract provided.


An Integrated Workflow For Addressing Performance, Dynamics, Tribological And Nvh Issues In Scroll Compressors, Sibi Kandasamy, Rodrigo Aihara, Rifat Keribar, Ali Afshari, Zhiqiang Wang, Chao Ma, Dejun Song Jan 2024

An Integrated Workflow For Addressing Performance, Dynamics, Tribological And Nvh Issues In Scroll Compressors, Sibi Kandasamy, Rodrigo Aihara, Rifat Keribar, Ali Afshari, Zhiqiang Wang, Chao Ma, Dejun Song

International Compressor Engineering Conference

No abstract provided.


Single-Phase Induction Motor Design Optimization For Hermetic Rotary Compressor In Heat Pump Water Heating Applications, Osmar Pinheiro, Jônatas Lacerda, Lino Marco Jan 2024

Single-Phase Induction Motor Design Optimization For Hermetic Rotary Compressor In Heat Pump Water Heating Applications, Osmar Pinheiro, Jônatas Lacerda, Lino Marco

International Compressor Engineering Conference

No abstract provided.


Influence Of Suction Conditions And Refrigerant Fluid On Scroll Compressor Mass Flow Rate And Extrapolation Strategies, Javier Marchante-Avellaneda, Rubén Ossorio, Emilio Navarro-Peris, Som S. Shrestha Jan 2024

Influence Of Suction Conditions And Refrigerant Fluid On Scroll Compressor Mass Flow Rate And Extrapolation Strategies, Javier Marchante-Avellaneda, Rubén Ossorio, Emilio Navarro-Peris, Som S. Shrestha

International Compressor Engineering Conference

No abstract provided.


Robust Inverse Parameter Fitting Of Thermal Properties From The Laser-Based Angstrom Method In The Presence Of Measurement Noise Using Physics-Informed Neural Networks (Pinns), Shanmukhi Sripada, Aalok U. Gaitonde, Justin A. Weibel, Amy M. Marconnet Jan 2024

Robust Inverse Parameter Fitting Of Thermal Properties From The Laser-Based Angstrom Method In The Presence Of Measurement Noise Using Physics-Informed Neural Networks (Pinns), Shanmukhi Sripada, Aalok U. Gaitonde, Justin A. Weibel, Amy M. Marconnet

CTRC Research Publications

The two-dimensional laser-based Ångstrom method measures the in-plane thermal properties for anisotropic film-like materials. It involves periodic laser heating at the center of a suspended film sample and records its transient thermal response by infrared imaging. These spatiotemporal temperature data must be analyzed to extract the unknown thermal conductivity values in the orthotropic directions, an inverse parameter fitting problem. Previous demonstration of the metrology technique used a least-squares fitting method that relies on numerical differentiation to evaluate the second-order partial derivatives in the differential equation describing transient conduction in the physical system. This fitting approach is susceptible to measurement noise, …


Development Of Self-Correction Algorithms For Thermostats Using Openapi Capabilities, Yimin Chen, Eliot Crowe, Jessica Granderson Jan 2024

Development Of Self-Correction Algorithms For Thermostats Using Openapi Capabilities, Yimin Chen, Eliot Crowe, Jessica Granderson

International High Performance Buildings Conference

No abstract provided.


Dynamic Reed Valve In Rolling Piston Compressor: A 3-Dimensional Transient Cfd Simulation, Nirav Chaudhari, Chinmoy K. Mohapatra, Hui Ding, Haiyang Gao Jan 2024

Dynamic Reed Valve In Rolling Piston Compressor: A 3-Dimensional Transient Cfd Simulation, Nirav Chaudhari, Chinmoy K. Mohapatra, Hui Ding, Haiyang Gao

International Compressor Engineering Conference

No abstract provided.


From Fixed To Growth: How A Mindset Transforms Student Learning, Andrew Fabo Jan 2024

From Fixed To Growth: How A Mindset Transforms Student Learning, Andrew Fabo

Williams Honors College, Honors Research Projects

Placing labels onto young learners, such as “smart” and “gifted,” impacts their brain growth and mental health tremendously; rarely in a positive manner. This way of thinking, formed by separating students into “accelerated” and “normal” categories, can instill what is known as a fixed mindset of learning. Believing that there is no room to grow, or being afraid to make mistakes, largely due to the impact of these labels, learners quickly become less likely to attempt more challenging tasks; as well as persevere through difficult obstacles. Through extensive research within the Akron-Summit County Public Library, The University of Akron’s Bierce …


Needs Assessment – National Repository For Nsf Agep Deliverables, Christie Sahley, Megan Sapp-Nelson, Donna Ferullo, Linda Mason, Hanzi Xie Jan 2024

Needs Assessment – National Repository For Nsf Agep Deliverables, Christie Sahley, Megan Sapp-Nelson, Donna Ferullo, Linda Mason, Hanzi Xie

Libraries Faculty and Staff Scholarship and Research

This white paper proposes the establishment of a National Repository for NSF Alliance for Graduate Education and the Professoriate (AGEP) Deliverables to address the critical need for preserving and sharing a wide array of materials generated from the AGEP program. Recognizing the challenges of ephemeral storage solutions and the absence of a unified collection mechanism, the paper underscores the repository's role in promoting justice, equity, diversity, and inclusion (JEDI) research. It emphasizes the importance of accommodating diverse data types, enhancing discoverability, and ensuring long-term access to educational materials, policy documents, and research outcomes. Through a comprehensive approach, the proposed repository …


The Mother & Father Hybrid Compression Technology, A Possible Solution For Future Clean Energy Production, Mihail-Dan Staicovici Jan 2024

The Mother & Father Hybrid Compression Technology, A Possible Solution For Future Clean Energy Production, Mihail-Dan Staicovici

International Refrigeration and Air Conditioning Conference

No abstract provided.


Leto: Learning Constrained Visuomotor Policy With Differentiable Trajectory Optimization, Zhengtong Xu, Yu She Jan 2024

Leto: Learning Constrained Visuomotor Policy With Differentiable Trajectory Optimization, Zhengtong Xu, Yu She

School of Industrial Engineering Faculty Publications

This paper introduces LeTO, a method for learning constrained visuomotor policy with differentiable trajectory optimization. Our approach integrates a differentiable optimization layer into the neural network. By formulating the optimization layer as a trajectory optimization problem, we enable the model to end-to-end generate actions in a safe and constraint-controlled fashion without extra modules. Our method allows for the introduction of constraint information during the training process, thereby balancing the training objectives of satisfying constraints, smoothing the trajectories, and minimizing errors with demonstrations. This “gray box” method marries optimization-based safety and interpretability with powerful representational abilities of neural networks. We quantitatively …


Evaluation Of Flow, Heat Transfer, And Phase Change Characteristics In Microchannel Condensers Using Computational Fluid Dynamic (Cfd) Simulations, Katherine J. Asztalos, Muhsin Ameen, Ameya Waikar, David Rowinski Jan 2024

Evaluation Of Flow, Heat Transfer, And Phase Change Characteristics In Microchannel Condensers Using Computational Fluid Dynamic (Cfd) Simulations, Katherine J. Asztalos, Muhsin Ameen, Ameya Waikar, David Rowinski

International Refrigeration and Air Conditioning Conference

No abstract provided.


On The Effectiveness Of Brazed-Type Capillary Tube Suction Line Heat Exchangers Running With Isobutane, Pedro Bruggemann, Gabriel Podgaietsky, Kaitlyn Palermo, Elizabeth Wohlers, Joshua Julius, Anderson Bortoletto, Christian Hermes Jan 2024

On The Effectiveness Of Brazed-Type Capillary Tube Suction Line Heat Exchangers Running With Isobutane, Pedro Bruggemann, Gabriel Podgaietsky, Kaitlyn Palermo, Elizabeth Wohlers, Joshua Julius, Anderson Bortoletto, Christian Hermes

International Refrigeration and Air Conditioning Conference

No abstract provided.


Review Of Thermal Management Systems In Electric Vehicles, Mina Michel Kamel Mikhaeel, Wulfer De Bruijn Jan 2024

Review Of Thermal Management Systems In Electric Vehicles, Mina Michel Kamel Mikhaeel, Wulfer De Bruijn

International Refrigeration and Air Conditioning Conference

No abstract provided.


Development And Evaluation Of A Loop Thermosiphon Heat Exchanger As Passive Replacement To Secondary Loop For Low Gwp Heat Pumps, Matthew Nicholas Robinson, Scott Goedeke, Taylor Maxwell, Devin Pellicone, Morton Blatt, Sara Beaini Jan 2024

Development And Evaluation Of A Loop Thermosiphon Heat Exchanger As Passive Replacement To Secondary Loop For Low Gwp Heat Pumps, Matthew Nicholas Robinson, Scott Goedeke, Taylor Maxwell, Devin Pellicone, Morton Blatt, Sara Beaini

International Refrigeration and Air Conditioning Conference

No abstract provided.


Generalizability Of A Machine-Learning Fault Classifier Utilizing A Practical Set Of Features For Rooftop Units, Md Rasel Uddin, David P. Yuill, Robert E. Williams Jan 2024

Generalizability Of A Machine-Learning Fault Classifier Utilizing A Practical Set Of Features For Rooftop Units, Md Rasel Uddin, David P. Yuill, Robert E. Williams

International Refrigeration and Air Conditioning Conference

No abstract provided.


Assessment Of Centralized Domestic Hot Water Systems As An Electrification Option For Multi-Family Water Heating In Cold Climates, Zhenning Li, John Bush, Kyle Gluesenkamp Jan 2024

Assessment Of Centralized Domestic Hot Water Systems As An Electrification Option For Multi-Family Water Heating In Cold Climates, Zhenning Li, John Bush, Kyle Gluesenkamp

International Refrigeration and Air Conditioning Conference

No abstract provided.


Performance Comparison Of A Residential Split-System Heat Pump Powered On Ac Versus Dc Power, Aaron Harron Patrick Farha, Davide Ziviani, Kevin James Kircher, Eckhard A. Groll Jan 2024

Performance Comparison Of A Residential Split-System Heat Pump Powered On Ac Versus Dc Power, Aaron Harron Patrick Farha, Davide Ziviani, Kevin James Kircher, Eckhard A. Groll

International Refrigeration and Air Conditioning Conference

No abstract provided.


Evaluation Of Leak Detection Technologies For Low Global Warming Potential (Gwp), Flammable Refrigerants, Viktor Reshniak, Hongbin Sun, Praveen Cheekatamarla, Vishaldeep Sharma, Samuel Yana Motta Jan 2024

Evaluation Of Leak Detection Technologies For Low Global Warming Potential (Gwp), Flammable Refrigerants, Viktor Reshniak, Hongbin Sun, Praveen Cheekatamarla, Vishaldeep Sharma, Samuel Yana Motta

International Refrigeration and Air Conditioning Conference

No abstract provided.


Impact Of Composition Adjustment On The Performance Of A Water-Ammonia High-Temperature Heat Pump, Shahzaib Abbasi, Elias Vieren, Kenny Couvreur, Steven Lecompte, Alessia Arteconi Jan 2024

Impact Of Composition Adjustment On The Performance Of A Water-Ammonia High-Temperature Heat Pump, Shahzaib Abbasi, Elias Vieren, Kenny Couvreur, Steven Lecompte, Alessia Arteconi

International Refrigeration and Air Conditioning Conference

No abstract provided.


Heat Transfer Modeling In Server Refrigeration: A Transient Box Model Approach., Jordi Vera, Carles Oliet, Deniz Kizildag, Joaquim Rigola, Assensi Oliva, Oriol Sanmarti Jan 2024

Heat Transfer Modeling In Server Refrigeration: A Transient Box Model Approach., Jordi Vera, Carles Oliet, Deniz Kizildag, Joaquim Rigola, Assensi Oliva, Oriol Sanmarti

International Refrigeration and Air Conditioning Conference

No abstract provided.


Two-Dimensional First-Principles Model For Uneven Frost Accretion In ‘no-Frost’ Evaporators, Dimitri Silva, Henrique Eberth, Carlos Richter, Diogo Da Silva, Christian Hermes Jan 2024

Two-Dimensional First-Principles Model For Uneven Frost Accretion In ‘no-Frost’ Evaporators, Dimitri Silva, Henrique Eberth, Carlos Richter, Diogo Da Silva, Christian Hermes

International Refrigeration and Air Conditioning Conference

No abstract provided.


Quantification Of Predictive Capabilities Of An Empirical Model For A Variable Speed Heat Pump System Trained With Sparse Data, Shahzad Yousaf, Craig Bradshaw, Rushikesh Kamalapurkar, Omer San Jan 2024

Quantification Of Predictive Capabilities Of An Empirical Model For A Variable Speed Heat Pump System Trained With Sparse Data, Shahzad Yousaf, Craig Bradshaw, Rushikesh Kamalapurkar, Omer San

International Refrigeration and Air Conditioning Conference

No abstract provided.


Modeling The Effect Of Non-Uniform Frost Accumulation On The Performance Of Heat Pump With Refrigerant Side Flow Maldistribution, Tauseef Ismail, Hamid Ikram, Aaron Alexander, Christian Bach Jan 2024

Modeling The Effect Of Non-Uniform Frost Accumulation On The Performance Of Heat Pump With Refrigerant Side Flow Maldistribution, Tauseef Ismail, Hamid Ikram, Aaron Alexander, Christian Bach

International Refrigeration and Air Conditioning Conference

No abstract provided.


Thermal System Simulation Analysis Of R452a Refrigeration System And Possible Refrigerant Alternatives, Nicolas Ablanque, Santiago Torras, Carles Oliet, Joaquim Rigola, Jesus Castro, Joan Vila, Santiago Martinez Jan 2024

Thermal System Simulation Analysis Of R452a Refrigeration System And Possible Refrigerant Alternatives, Nicolas Ablanque, Santiago Torras, Carles Oliet, Joaquim Rigola, Jesus Castro, Joan Vila, Santiago Martinez

International Refrigeration and Air Conditioning Conference

No abstract provided.


Transient Heat Exchanger Simulation Through 1d And 3d Cfd Models, Jordi Vera, Eugenio Schillaci, Santiago Torras, Carles Oliet, Assensi Oliva Jan 2024

Transient Heat Exchanger Simulation Through 1d And 3d Cfd Models, Jordi Vera, Eugenio Schillaci, Santiago Torras, Carles Oliet, Assensi Oliva

International Refrigeration and Air Conditioning Conference

No abstract provided.


Rigorous Feature Selection Of The Virtual Refrigerant Charge Sensor For Variable-Speed Heat Pumps, Fangzhou Guo, Donghun Kim, Philani Hlanze, Jie Cai Jan 2024

Rigorous Feature Selection Of The Virtual Refrigerant Charge Sensor For Variable-Speed Heat Pumps, Fangzhou Guo, Donghun Kim, Philani Hlanze, Jie Cai

International Refrigeration and Air Conditioning Conference

No abstract provided.