Suriyawong, Adirek

Preferred name

Suriyawong, Adirek

Alternative Name

Suriyawong, A.

Main Affiliation

KMITL Prince of Chumphon Campus

adirek.su@kmitl.ac.th

Now showing 1 - 6 of 6

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Management of air conditioning system in electronics housing by using thermoelectric Peltier module
(2021-09-15)
Suriyawong, Adirek
;
Saisorn, Sira
;
Suwanpayak, Nathaporn
;
Wongwises, Somchai
The study was the conditioning system of the electronic case by using thermoelectric Peltier module. The Peltier module is used based on the temperature difference of the hot and cold sides, with input electric power in the thermoelectric Peltier module. The hot side of the Peltier module was installed on a side of the heat sinks with heat removing from a Peltier module into a surrounding while the cold side of the Peltier module was installed on the other side of the heat sinks with the heat absorption of the computer case. The electronic case volume is 450x395x240 mm³. The device of cooling loads was installed in the electronic case. The cooling loads were tested with various power of 0, 60, 120, 180, and 240 Watt. The results indicated that the coefficient of performance (COP) increased with the cooling load. Furthermore, the experimental results indicated that the temperature inside the electronic case increased with cooling load because the temperature of the electronic case increased with decreasing the temperature difference between the hot and the cold sides.
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Two-phase heat transfer behaviors of r-134a refrigerant and air-water mixture in A 1 MM internal diameter tube
(2016-01-01)
Saisorn, Sira
;
Wongwises, Somchai
;
Wongpromma, Pakorn
;
Benjawun, Phakkhanan
;
Suriyawong, Adirek
Flow boiling of R-134a refrigerant was experimentally conducted in a test section which is a stainless steel tube having internal diameter of 1 mm. The DC power supply was connected to the test section to provide constant surface heat flux conditions. Flow pattern and heat transfer data were obtained for a mass flux range of 252-820 kg/m2s, a heat flux range of 1-21 kW/m2 and a saturation pressure of 8 bar. The flow visualization results showed four different flow patterns including slug flow, throat-Annular flow, churn flow, and annular flow. The flow boiling heat transfer behaviors were also compared with those based on non-boiling two-phase air-water flow in the same test section under constant surface heat flux conditions. For non-boiling two-phase flow experiment, an airwater T-shaped mixer was served to introduce fluids smoothly along the test section. The results indicated that based on the same gas and liquid Reynolds numbers, flow boiling tends to have Nusselt number higher than that for non-boiling gas-liquid flow.
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Anatomical and physical properties of tendril perversion of Coccinia grandis (L.) Voigt
(2020-12-22)
Prombanchong, T.
;
Suriyawong, A.
;
Srisongkram, P.
;
Suwanpayak, N.
The structure of biomaterial is interest in biomimetic and biomechanics research. The physical properties, mechanical, characteristic of twisting and bending of plant tendrils are also thought-provoking to study. In this study, we proposed an innovative biomaterial spring device for holding an object and providing support. The device uses Coccinia grandis (L.) Voigt tendril as inspired by the relations of left-hand (LH) and right-hand (RH) climbing tendrils with a single branch. To study the morphology and anatomy, testing stress, length, number of the helix of the tendril which relation of mimic string material Coccinia grandis (L.) Voigt tendril and helical metal which have two helixes, three helixes and four helixes were tested by using food texture analysis. The anatomical showed many cell types and slight differences between straight and coiled tendrils. The result showed the tendril of two helixes has the highest stress and four helixes the least. Also, tensile testing showed that the number of helixes does not affect the stress of the tendril models.
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Number of blades of rotating blades affecting the boiling heat transfer enhancement of distilled water
(2019-09-09)
Suriyawong, A.
;
Saisorn, S.
;
Kawahara, A.
;
Wongwises, S.
This study examined the nucleate pool boiling characteristics of distilled water attached to a heating surface with a horizontal circular plate above which the rotating blades were installed. The experiments were performed to explore the effects of number of blades as well as the visualization of pool boiling phenomena on nucleate boiling heat transfer characteristics. The rotating blades were made from copper material, with the number of blade of 2, 3 and 4 blades. The results showed that, the rotor with 4 blades yielded a higher heat transfer coefficient than those with 2 or 3 blades. This is because the increased number of blade provided more chance for the bubbles to strike the rotating blades. Hence, the rotating blades did create a commotion of the working fluid above the heating surface. Camera frames were captured using an Aos Promon Studio at the heat fluxes of about 160-610 kW/m2 to identify the location of bubble nucleation for each configuration. The photographic observations showed that, the pool boiling phenomenon with the heat flux value of about 160 kW/m2 corresponded to the isolated bubble, and the boiling characteristic with the heat flux value of about 610 kW/m2 were based on the column regime.
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An experimental study of adiabatic two-phase gas-liquid flow in helical micro-tube
(2021-09-15)
Suriyawong, Adirek
;
Pratuyai, Kritsada
;
Wongwises, Somchai
;
Saisorn, Sira
The development of two-phase flow patterns in helical micro-tube was experimentally investigated. The adiabatic gas-liquid two-phase flow regime maps were presented based on a 0.87 mm inner diameter tube which was helical glass channel. Working fluid in the helically coiled tube was air-water mixture flowing in vertical upward direction. The diameter of the helical coil and the relevant pitch were, respectively, 50 mm and 20 mm. Flow visualization was carried out at different positions along the micro-tube length in order to examine the significance of the centrifugal force existing in addition to the conventional force vectors. In this work, slug flow, churn flow, throat-annular flow, and annular flow were observed and compared to the existing flow transition boundaries developed from micro-channel configurations.
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The Enhancement of Pool Boiling Heat Transfer by Passive Technique using Rotating Blades Applied on the Nucleation Sites
(2019-10-25)
Suriyawong, A.
;
Saisorn, S.
;
Kawahara, A.
;
Wongwises, S.
This paper was aimed to investigate the nucleate boiling phenomena with the presence of the rotating blades above the heat transfer surface. The boiling process at 1 atm was carried out by allowing heat transferred from a copper surface to distilled water. The 4-blade rotor made from copper was vertically installed at different distances above the heat transfer surface (L<inf>SB</inf>). The flow visualization during phase-change phenomena under heat flux values of 160-610 kW/m2 was feasible by high-speed camera. The results showed that pool boiling at the heat flux of 160 kW/m2 corresponded to isolated bubble regime, and at the value of 610 kW/m2, the column regime was observed. In addition to the two-phase flow pattern, the heat transfer coefficient data was reported in this work. The heat transfer results were found to depend on the distance at which the rotor was installed.

Suriyawong, Adirek

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