Juthanee Phromjan

Conjugate Heat Transfer Analysis of Teflon-Coated Steel Surfaces Exposed to Premixed Flame Jets

Panit Kamma, Kittipos Loksupapaiboon, Juthanee Phromjan

Composite material systems involving impinging flame jets on flat surfaces are critical in applications requiring precise thermal management and energy efficiency. A prominent example is Teflon-coated steel cookware, where the Teflon layer not only provides a nonstick surface but also influences thermal …

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Optimization of cooking vessel geometry for enhanced flame impingement heat transfer using a hybrid CFD and artificial intelligence approach

Panit Kamma, Kittipos Loksupapaiboon, Juthanee Phromjan, Arom Boekfah et autres

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Investigation of Shear Band Effects on Energy Dissipation in Agricultural Non-Pneumatic Tires

Juthanee Phromjan, Pattaramon Jongpradist, Siwakorn Phakdee, Panit Kamma

Non-pneumatic tires (NPTs) have been increasingly considered for agricultural machinery due to their puncture resistance, reduced maintenance, and adaptability to varying field conditions. One of the critical components governing their mechanical property is the shear band, which is a composite structure. This …

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Assessing non-pneumatic tires for agricultural tractors: A study on soil compaction and tractive performance

Juthanee Phromjan, Siwakorn Phakdee, Chakrit Suvanjumrat

• Non-pneumatic tires significantly reduce soil compaction compared to pneumatic tires • A 3D tire footprint–based model was used to predict soil bulk density accurately • NPTs maintain competitive tractive performance while preserving soil structure • NPT-2 showed the best balance between …

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Electromechanical response of Hyperelastic-Piezoelectric composites using Direct FE2 multiscale modeling

Akanae Chattrairat, Yeampon Nakaramontri, Juthanee Phromjan, Frank Clemens et autres

Piezoelectric soft materials generating electrical signals in response to mechanical deformation have been of great interest over the past decade, owing to their potential applications in human activity sensing and energy harvesting. In this study, a multiscale Direct FE 2 method is …

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Design and optimization of a novel tesla valve air-cooled heat sink for improved thermal management

Panit Kamma, Kittipos Loksupapaiboon, Juthanee Phromjan, Machimontorn Promtong et autres

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Optimization of plate-fin heat sink configurations for enhanced thermal performance and manufacturability

Panit Kamma, Kittipos Loksupapaiboon, Juthanee Phromjan, Machimontorn Promtong et autres

Enhancing heat sink efficiency presents a significant challenge, requiring the optimization of heat transfer performance while minimizing pressure drop across the inlet and outlet. Although previous designs have improved heat sink performance, their complex geometries have resulted in high manufacturing costs. This …

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Design and Analysis of a Composite SACH Foot: Experimental Validation and Finite Element Modeling

Natnaree Worajinda, Juthanee Phromjan, Ravivat Rugsaj, Siwakorn Phakdee et autres

One of the critical components in the rehabilitation of lower limb amputees is the prosthetic foot. The solid ankle cushion heel (SACH) foot is commonly prescribed to patients due to its ability to reduce impact loading at heel strike, as well as …

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Modeling the Pinch-Off Zone for the Handle of a Plastic Bottle via Extrusion Blow Molding Process: An Examination of Weld-Line Quality

Juthanee Phromjan, Seksan Sinbunluekul

The extrusion blow molding (EBM) process employed in manufacturing plastic bottles necessitates a robust weld line at the pinch-off zone to ensure the durability of the final products. However, manually configuring this aspect via machine settings is often impracticable. This study seeks …

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A hybrid AI-CFD framework for optimizing heat transfer of a premixed methane-air flame jet on inclined surfaces

Panit Kamma, Kittipos Loksupapaiboon, Juthanee Phromjan, Chakrit Suvanjumrat

This study presents a novel integration of artificial intelligence (AI) and computational fluid dynamics (CFD) simulations to investigate and optimize the heat transfer characteristics of a premixed methane-air flame jet impinging on an inclined surface. Key parameters—including the mixture equivalence ratio (ϕ …

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AN INTEGRATED APPROACH TO EVALUATING SOIL COMPACTION: THE IMPACT OF SHEAR BANDS IN NON-PNEUMATIC TIRES

Juthanee Phromjan

Enhancing commercial check valves in downhole pump applications through laboratory testing system development

Weerachai Chaiworapuek, Juthanee Phromjan, Kittipat Wejwittayaklung, Ravivat Rugsaj et autres

In this study, we aim to enhance the performance and longevity of downhole pumps employed in crude oil extraction in the oil industry. Downhole pumps play a pivotal role in the rod-pump system, comprising traveling and standing valves that function similarly to …

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