Kansuwan, Panya

Preferred name

Kansuwan, Panya

Alternative Name

Kansuwan, P.

Main Affiliation

School of Engineering

panya.ka@kmitl.ac.th

Now showing 1 - 6 of 6

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Design optimization on Ross yoke mechanism for stirling engine
(2026-05-15)
Jaisue, Apirat
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Kansuwan, Panya
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Kwankaomeng, Sutapat
This paper presents a design analysis and optimization of an Alpha-type Stirling engine with a double-acting mechanism. The engine has four cylinders with a piston diameter and length of 60 mm and 113.2 mm, respectively. Using the Ross yoke with a double-acting mechanism, the engine has a swept volume and stroke of 384.69 cm3 and 34 mm. The working gas is 10 bar pressurized air. ADAMS software is used to access dynamic balancing and kinematic analysis. Operating characteristics and performance were investigated and parameterized for optimization. Minimizing the stroke difference of four pistons, uniform piston stroke, is the objective function with the top and bottom-dead constraints. The length of the rocking lever attached to the yoke link influences the smooth reciprocating of all pistons. The simulation results with searching method optimization show the dynamic motion of the Ross yoke mechanism that can be adjusted to the optimal piston stroke with the suitable length of the rocking lever.
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Effect of regenerator on V-type alpha Stirling engine performance
(2021-09-15)
Senviboon, Varit
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Kansuwan, Panya
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Silpsakoolsook, Banterng
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Kwankaomeng, Sutapat
This paper presents the performance of an Alpha-type Stirling engine with and without a regenerator. The Alpha Stirling engine with a V-cylinder arrangement has two pistons that fit in hot and cold cylinders separately. The prototype engine has swept volume of 79 cm3. Working gas is ambient air and coolant is water. The engine performance test was conducted in two operating modes as a heat pump and a heat engine. Working as a heat pump, temperature drop at the cold cylinder was measured relative to work input from an induction motor. By varying its speed using an inverter, the cooling curves of the engine with and without regenerative heat exchanger were obtained for comparison. Working as a heat engine, on the contrary, heat input instead of work input as in the heat pump was applied to the engine by a fuel burner at a constant feed rate of LPG. The temperature on the cold cylinder is controlled by cooling water from the cooler. By varying the cooling water temperature, the variations of work output were measured from the output shaft by the rope brake dynamometer. The performance results of the two operating modes with and without regenerator were compared.
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Study of Rolling Contact Fatigue Mechanism of ER9 and R260 Wheel/Rail Materials
(2024-10-24)
Sukhom, Aunna
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Talingthaisong, Thanaporn
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Sucharitpwatskul, Sedthawat
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Manonukul, Anchalee
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Kansuwan, Panya
In railway operations, surface cracks due to rolling contact fatigue (RCF) are stress-induced defects that require further examination. The crack initiated at the wheel/rail interface propagates and thus leads to serious safety issues at the final fracture stage. This paper applies a cylinder-to-ball type of rolling contact fatigue rig to investigate the effect of contact pressure on rolling contact fatigue mechanisms and surface damage microstructure of ER9 wheel steel and R260 rail steel materials. Employing Hertzian contact theory, applied compressive forces used for different pressures were determined. The experiments were performed under dry conditions similar to most running trains. Results indicate that when the contact pressure increases, so does the severe surface damage. The service life of the materials decreases as stress increases. R260 rail material has a service life longer than ER9 wheel material at low contact pressure, but at contact pressures above 2.7 GPa, R260 rail material outperforms ER9 wheel material. Fractographic investigation demonstrates rolling contact fatigue damage evolution from flat surfaces to damaged surfaces in the form of flaking and spalling. Accelerometer measurements capture the damage mechanism stages from the crack nucleation stage of the test at acceleration amplitudes ranging from 0.5 to 0.75 times the force of gravity (G). A contact band appears on the specimen surfaces before the amplitude increases abruptly to about 1.0 G when surface cracks appear. Traces of surface cracking along the edge of the contact band cause stepwise acceleration jumps to 1.5 G, at which we ended the tests.
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Heat transfer enhancement and investigation on Stirling engine heater with biomass application
(2021-09-15)
Tuntrakeun, Punsa
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Kansuwan, Panya
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Kwankaomeng, Sutapat
This research presents a heat transfer enhancement technique on a Stirling engine heater equipped with a biomass fuel burner. ANSYS Fluent software was utilized in the computation of heat transfer, including heat flux and temperature distribution on the heater component of the engine. Effects of the increasing of the heating surface on heat transfer enhancement were investigated. Fin effectiveness resulting from the fin parameter variation of the heater, such as fin diameter and fin spacing, was evaluated for heat transfer under forced convection and heat conduction. This simulation results in the fin configuration most suitable for the fabrication of our Stirling engine heater.
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Ethanol impacts on fuel supply parts of gasoline engines in Thailand
(2009-01-01)
Charoenphonphanich, Chinda
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Buanak, Kalong
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Kansuwan, Panya
In Thailand, gasoline mixtures with 85% ethanol by volume so called E85 recently available with guaranteed lower selling price are expected to replace the former types of gasoline. The looming change leads to certain concerns on material compatibility with E85 for automobiles deliberately not designed to run by the blends. Fluid immersion tests complying with SAE and ASTM standard were performed to the parts. The metallic and polymeric parts were submersed in test fluids inside an oven in which temperature had been maintained at 55 ± 2°C for at least 2000 hours. Weekly collected data, i.e. physical appearances and physical properties, were statistical evaluated for parts' compatibility to E85 by comparing the data to those collected derived from the other parts submersed in E10 test fluid. A significant level of differences indicates incompatibility of a part with an assumption that the part is already compatible with E10. Copyright © 2009 SAE International.
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Simulation of dynamic stresses on battery pack holder from different road topologies
(2018-01-01)
Paetanom, Piyawat
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Benyajati, Chi na
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Kansuwan, Panya
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Okuma, Masaaki
The designing of battery pack holder was the main purpose of this study. The method of multi-body system (MBS) was used in this work to study the resulting dynamic displacement from road topology using the ADAMS/CAR software. The bus model was assigned to traverse over and interact with a digitized road surface, i.e. a single bump. The resulting dynamic on the battery packs during the speed bump maneuvers were translated to non-linear quasi-static software, HyperWork, to calculate the dynamic stress on the battery pack holders. The overall of design aspect for a low-floor electric city bus will be discussed.

Kansuwan, Panya

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