Wirote Ritthong

Bangkokthonburi University

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Document Type

Co-Authors

Naphat Albutt

Shinawatra University

Sumate Sathitbun-anan

Rajamangala University of Technology Phra Nakhon

Suejit Pechprasarn

Rangsit University

Tanongkiat Kiatsiriroat

Chiang Mai University

Thanapong Sareein

Rajamangala University of Technology Phra Nakhon

Supree Pinitsoontorn

Khon Kaen University

Vanussanun Aitviriyaphan

Rajamangala University of Technology Phra Nakhon

Atipoang Nuntaphan

Electricity Generating Authority of Thailand

Sangwoei Sawekwiharee

Rajamangala University of Technology Phra Nakhon

Wipawadee Wongsuwan

Thai-Nichi Institute of Technology

Cooperative Institutions

Rajamangala University of Technology Phra Nakhon

Rajamangala University of Technology Isan

Chiang Mai University

King Mongkut's University of Technology Thonburi

Suranaree University of Technology

Electricity Generating Authority of Thailand

King Mongkut's University of Technology North Bangkok

Rangsit University

Asian Institute of Technology

Rajamangala University of Technology Suvarnabhumi

Author Statistics

Papers

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Study, Magnetic Properties of BaTiFeO<sub>3</sub> Perovskite Prepared by Solid State Method

Applied Mechanics and Materials (2019)

Vanussanun Aitviriyaphan Thanapong Sareein Sudarath Suntaropas Panakamon Thonglor Sangwoei Sawekwiharee

The magnetic properties of BaFeTiO 3 (BTFO) perovskite are investigated. BTFO samples were prepared by solid state reaction method through compression. Magnetic properties are influenced by electron environments of the Fe 3+ ions within the perovskite structure. Furthermore, the values of Ms and Mr indicate ferromagnetic behaviour in BFMO ceramics sintered at 800 oC for sintering as 800 oC for 6 hours at 1.898 emu/g, which is magnetization strength material more than sintering at 4 hours, 8 hours, 10 hours as 1.794 emu/g, 1.333 emu/g and 1.192 emu/g at measured of low temperature. Using the Curie-Weiss law fitting for investigate μeff~38μB high spin of Fe, negative of θ present to antiferromagnetic characteristics of BTFO sample. Finally, BTFO sintering at the high temperature of 800 oC for 6 hours exhibited the high Ms~1.898 emu/g at 50 K and ~1.216emu/g at room temperature.

10.4028/www.scientific.net/amm.891.230

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Performance Analysis of Adsorption Refrigeration System with Water-Thermosyphon Cool Adsorber and Evaporator Enhanced with Near-Ultrasonic Wave

Wirote Ritthong Peerasit Chadathon Siripol Tongorn

Here we present an experimental study of the single-effect adsorption cooling system using activated carbon-methanol working pair. The test unit was comprised of an adsorber, a condenser and evaporator in vertical alignment. Heating and cooling of adsorber was mainly done by hot and cold water circulating through the water jacket. The evaporator and condenser was heated or cooled by flows of water through the internal coil. The adsorber was analyzed for its cooling rate when cooling was done by two approaches, either cooling water and/or three thermosyphon heat pipes, which both methods gave shortest cooling time. The investigated heat source and sink temperatures are; hot water temperature supplied to adsorber (70, 80, 90 C), and cooling water temperature supplied to condenser (5, 10, 15 C). An ultrasonic wave generator was attached to the bottom end of the evaporator, to generate wave frequency varied by 8, 10, and 14 kHz during evaporation phase. The ultrasonic wave can obviously reduce the evaporation time of methanol, as well as to improve the system performance in terms of COP, SCP and VCP. The system performance was considerably comparable to those from literatures. The highest COP and SCP obtained from this system was 0.718 and 248.90 W/kg, respectively.

Condenser (optics)

Thermosiphon

Source

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An Analysis of the Cost Effectiveness for Energy Efficiency Technology in Thailand Pulp and Paper Industry

Energy Procedia (2017)

Sumate Sathitbun-anan Wirote Ritthong

Green Energy efficiency is becoming more important because of the resulting cost reduction and image of green society which helps to enhance competitiveness in a globalized green market. Pulp and paper manufacturing is a large-scale industry which is generally regarded as important for national development. The Pulp and Paper industry consumes approximately 2.5% of total industrial energy consumption in Thailand by 44 factories distributed throughout the country. Therefore, energy efficiency improvement can play a significant role in the industry. Investigations of the cost effectiveness of energy efficiency measures and technologies using bottom-up Conservation Supply Curve (CSC) in the pulp and paper mill process are required. This study examines the concept, methodology, and the usefulness of the energy conservation supply curve, and the potential to create the appropriate energy policies to the Thai Pulp and Paper Industry.

Energy supply

10.1016/j.egypro.2017.10.208

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Citations (3)

Agricultural by-product stove

Wirote Ritthong Thanasan Thanavuth

Stove

Source

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Optimization Design of Closed-Loop Thermosyphons: Experimentation and Computational Fluid Dynamics Modeling

Energies (2024)

Natthakit Ritthong Sommart Thongkom Apichai Sawisit Boonyabhorn Duangsa Wirote Ritthong

The well-established practice of integrating heat pipes into thermosyphons is recognized for its efficacy in achieving energy savings. This integration facilitates heat transfer and fluid circulation without requiring additional pumps or energy input, resulting in reduced consumption, lowered operational costs, and an overall improvement in system efficiency. This research explores the energy-saving potential of closed-loop thermosyphons, with a specific focus on their integration in latent heat-based heat pipe technologies in industrial settings. The study systematically investigates the influence of thermosyphon orientation on energy efficiency through a combination of experiments and computational fluid dynamics (CFD) simulations. Thereby, it results in superior heat transfer rates in forced convection scenarios. A closed-loop thermosyphon heat exchanger undergoes evaluation in three panel installation configurations relative to the ground, taking into consideration factors including copper diameters, coolants (with or without R410a), and temperature conditions. CFD validation identifies an efficient thermosyphon design—a panel oriented perpendicularly to the ground and filled with R410a refrigerant at 90 °C. It utilizes a 19.05 mm copper tube for forced convection. This optimized design demonstrates a commendable heat transfer rate of 1485 W and a heat transfer coefficient of 1252 W/(m2·K), significantly enhancing thermal process efficiency and resulting in notable energy savings.

Thermosiphon

Condenser (optics)

Forced convection

10.3390/en17020527

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Citations (1)

Techno-Economy Analysis by Green Abatement Cost Curve for Pulp and Paper Industry

Energy Procedia (2017)

Sumate Sathitbun-anan Wirote Ritthong

the production and expansion potential of Pulp and Paper Industry is an important indicator of social and economic development. The Pulp and Paper Industry is one of the largest carbon dioxide (CO2) emitters in world manufacturing. The industry emits GHG emissions around 10% or approximately 20.5 Mt of CO2 by Thai manufacturers. Investigations of GHG abatement using CO2 Abatement Cost Curves (ACC) can be used as a tool for investigating GHG reduction measures and technologies in the Pulp and Paper Industry. The results of this study assesses the cost-effectiveness and the total technical potential for carbon dioxide emission reduction in this sector.

Paper production

Marine industry

10.1016/j.egypro.2017.10.210

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Gas Detector System for Industrial Use

Applied Mechanics and Materials (2018)

Maitree Thawornsin Wirote Ritthong Chitsanucha Sangna Panida Lorwongtragool Naphat Albutt

Early detection of hazardous or flammable gasses/volatiles reduces the potential risks to personnel, such as development of respiratory problems. A simple robust resistive sensor device is presented with a sensing film of poly (styreneco-maleic acid) containing carbon nanotubes as the conductive medium. The response of the sensor was assessed with several volatile solvents and an industrial printer ink. All vapours were detected by increased resistance of the sensor film, and the ink vapour elicited the largest response. A warning system for volatile solvents could be based on this sensor design for use in industrial environments.

Vapours

Flammable liquid

Resistive touchscreen

Screen printing

10.4028/www.scientific.net/amm.879.234

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Development of ceiling board product from oil palm fiber for community enterprise

Wirote Ritthong Prachoom Khamput Nattapong Makaratat Sajjachan Pradmali วิโรจน์ ฤทธิ์ทอง

Ceiling (cloud)

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Friction Tests of Ball Bearings with Comparison of Lubricants

Applied Mechanics and Materials (2017)

Sumate Sathitbun-anan Wirote Ritthong

The ball bearings are the rotating components which are widely spread to moving parts for all machinery operation in general industry. This paper presents the ball bearing resistance tool which has a proper size and can handle the maximum load of 300 kg by using an electric power. The ball bearing resistance tool was used to test the bearings No. 6011 cm. The series of tests was performed in the ball bearings lubricated; engine oil SAE 10W/40, auto transmission fluid Dexron, and hydraulic oil. The rotational speeds for testing were vary; 500, 600 and 700 rpm respectively. At each speed, there were various weight; 50, 70, 90,110,130,150, and 170 kg respectively. The results show that the hydraulic oil generated the smallest coefficients of friction and energy efficiency for ball bearing operation.

Ball bearing

Ball (mathematics)

Hydraulic fluid

Friction torque

10.4028/www.scientific.net/amm.866.375

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Comparative Selection of Pure and Zeotropic Refrigerants in Cascade Heat Pumps: Effects on System Performance and Optimal Intermediate Temperature

Results in Engineering (2025)

Sokleng Srou Pongthep Poungthong Wirote Ritthong

Zeotropic mixture

10.1016/j.rineng.2025.104406

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