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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS)
Somchai Maneewan
Naresuan University
Control & Systems Engineering Electrical & Electronics Engineering

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Thermoelectric Generator for the Recovery of Energy from the Low-Grade Heat Sources in Sugar Industry Weera Punin; Somchai Maneewan; Chantana Punlek
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 9, No 4: December 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (904.944 KB) | DOI: 10.11591/ijpeds.v9.i4.pp1565-1572

Abstract

In the current work, a thermoelectric power generation system was designed for an assessment of opportunities in terms of electricity production through the utilization of waste heat from sugarcane industries. In this study, the thermoelectric cooling of TEC1-12708T200 was appropriate for use in electric power generation from low-grade heat sources. The experiments used ten thermoelectric modules and an aluminum water block installed on the exterior surface area of a sugar boiler to achieve the same water flow as a traditional system. The results revealed that the power generation system could generate about 30 W (25.7 V, 1.17 A) at a matched load of approximately 36.8 Ω. The thermoelectric power generation system could convert 12.5% of heat energy into electrical energy. Therefore, the thermoelectric power generation system designed in this study could be an effective alternative for waste heat recovery in sugarcane industries.
The Optimization of Hybrid Air Ventilation System Combined with Silica Gel and Thermoelectric Using Monitoring Control Jirod Chaisan; Somchai Maneewan; Chantana Punlek
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 9, No 4: December 2018
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (12 KB) | DOI: 10.11591/ijpeds.v9.i4.pp1624-1633

Abstract

In this paper, the experimental is evaluated temperature, humidity and air pollution from CO2 by monitoring control of hybrid air ventilation for producing fresh air. The experimental divided into 2 conditions: hybrid air ventilation on-off, recovery silica gel unit. That research consider of a voltage of thermoelectric devices relative with air cooling under thermal comfort zone Thailand climate conditions. In the experimental was designed by the DOAS system (dedicate outdoor air system) concept. Whereas, the hybrid air ventilation was improved by old air ventilation which the hybrid air ventilation combined with silica gel unit and thermoelectric device. Monitoring control is written by Arduino program that is open source for control performance of processes such as sensors, electric current and fan unit. That working is specified temperature and humidity Thailand thermal comfort range. In the part of CO2 was released rate approximately 900 ppm corresponded with indoor air quality standard (IAQs). The results of experimental suggested that in case of hybrid air ventilation system explained thermal, humidity and CO2 distribution due to the system was adapted significantly in the comfort zone temperature and humidity about 28 and 58% respectively. However, the CO2 released into the hybrid air ventilation although control during 900 – 1,000 ppm. High CO2 concentration in comfort zone used the hybrid air ventilation that decreased CO2 inlet under ASHRAE 62.2. Therefore, the experimental is an evaluation of monitoring control hybrid air ventilation for management comfort zone. Finally this research concept of the optimization of the hybrid air ventilation combination with thermoelectric devices and silica gel unit.
Experiment study investigation compare temperature series circuit and the parallel circuit of thermoelectric and variable water, electrical of thermoelectric for heat exchanger Akawit Yaidee; Chantana Punlek; Somchai Maneewan
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 10, No 2: June 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v10.i2.pp785-791

Abstract

This paper presents the comparison temperature of thermoelectric (Tec1-12708) between the series circuit and parallel circuit by adjusting of water flow rate pump and electrical supplying to thermoelectric, The electrical voltage at 8,10 and 12 V, water flow rate in reservoir was 0.015 kg/s and 0.025 kg/s. Experiments perform were 6 hours. The result from the researches, thermoelectric with parallel circuit high temperature more than thermoelectric with series circuit. The parallel circuit of thermoelectric can work better than the series circuit in hot side. The different temperature hot side of parallel circuit with the electrical voltage at 8, 10 and 12 V water flow rate in reservoir was 0.015 kg/s temperature average is 22.44 oC, 22.90 oC, 29.86 oC, and water flow rate in reservoir was 0.025 kg/s temperature average is 20.67 oC, 26.66 oC, 27.69 oC. Thermoelectric with parallel circuit makes the higher temperature more than thermoelectric with series circuit about 33%, 37%, 44% water flow rate in reservoir was 0.015 kg/s and 30%, 40%, 41% water flow rate in reservoir was 0.025 kg/s.
Thermodynamic analysis of a thermoelectric air conditioner Chanchira Channoy; Somchai Maneewan; Chantana Punlek
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 13, No 3: September 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v13.i3.pp1568-1575

Abstract

This paper discusses the results of tests done to investigate the performance of a thermoelectric air conditioner (TEAC). The TEAC is composed of twelve thermoelectric modules (TEMs). The TEMs were fixed to rectangular fin heat sinks on both their hot and cold sides. With an increased input voltage, the cooling capacity increased. At a 6 V input voltage flow, a suitable condition occurred. The rate of hot air flow was 0.48 kg/min, and the cooling capacity was 157.0 W, resulting in an outlet air temperature of 28 oC. The coefficient of performance (COP) was calculated and found to be 0.92. Exergy analysis is used to determine the energy flows and second law efficiencies of a TEMs system and its components. The exergy destruction and second law efficiency were observed to increase when the TEAC's input voltage was increased. The TEAC's maximum exergy efficiency was 0.35, which was low compared to the coefficient of performance.
Development and optimization of specially designed air ventilation system combined with thermoelectric and composite desiccant unit Dararat Tongdee; Somchai Maneewan; Surapong Chirarattananon; Chantana Punlek
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 13, No 3: September 2022
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v13.i3.pp1912-1921

Abstract

This research focused on the enhancement of a conventional air ventilation system by using monitoring control. A specially designed system was developed to optimize the current systems in order to improve the air quality and thermal comfort in buildings. Indoor parameters, such as temperature, humidity, and air pollution (CO2), were monitored and controlled. Researchers accumulated data and implemented performance analysis as a tool for assessing specially designed air ventilation systems. These practices were designed based on a concept that is dedicated outdoor air systems that were comprised of a composite desiccant unit in addition to a thermoelectric module to address tremendous latent and sensible loads of air inlet. The results of the experiment indicated that the 12 V of electrical supply to thermoelectric provided the highest COP of the system, and the temperature and humidity in the comfort zone was approximately 27 ๐C and 55%, respectively, due to this newly developed system. Furthermore, the CO2 levels were lower than 1000 ppm during this research study, which were in accordance with established standards of indoor air quality.
Co-Authors Akawit Yaidee Chanchira Channoy Chantana Punlek Dararat Tongdee Jirod Chaisan Surapong Chirarattananon Weera Punin