Developing a Thermoelectric Cooling Module for control Temperature and Thermal Displacement of Small Built-in Spindle

Author(s):  
Thi-Thao Ngo ◽  
Chi-Chang Wang ◽  
Yen-Tung Chen ◽  
Van-The Than
1980 ◽  
Vol 33 (10) ◽  
pp. 2103 ◽  
Author(s):  
MJ Costigan ◽  
LJ Hodges ◽  
KN Marsh ◽  
RH Stokes ◽  
CW Tuxford

The isothermal displacement calorimeter described previously has been modified by the inclusion of a thermoelectric cooling module to allow the study of both endothermic and exothermic mixing. Other modifications are also described. Excess enthalpies are reported for 1,4-dioxan+tetrachloro-methane, benzene+dichloromethane, tetrahydrofuran+water, and ethanol+water at 298.15 K and 1,4- dioxan+dichloromethane at 298.15 and 303.15 K. These mixtures have been suggested as possible reference mixtures for either checking the operation of, or calibrating, calorimeters to be used for making measurements on exothermic mixtures. The performances of our calorimeters have been evaluated on the basis of the results presented here and by comparison with previous results. Some advantages and disadvantages of the proposed reference mixtures are discussed. Photochemical effects from the tungsten thermostat lamp affect the results for mixtures of tetra-chloromethane with 1,4-dioxan.


2021 ◽  
Vol 28 ◽  
pp. 101686
Author(s):  
Philip K. Agyeman ◽  
Tan Gangfeng ◽  
Frimpong J. Alex ◽  
Dengzhi Peng ◽  
Jamshid Valiev ◽  
...  

2021 ◽  
Vol 39 (5) ◽  
pp. 1618-1626
Author(s):  
Sarawut Sirikasemsuk ◽  
Songkran Wiriyasart ◽  
Ruktai Prurapark ◽  
Nittaya Naphon ◽  
Paisarn Naphon

We investigated the results of the cooling performance of the pulsating water/nanofluids flowing in the thermoelectric cooling module for cooling electric vehicle battery systems. The experimental system was designed and constructed to consider the effects of the water block configuration, hot and cold side flow rates, supplied power input, and coolant types on the cooling performance of the thermoelectric module. The measured results from the present study with the Peltier module are verified against those without the thermoelectric module. Before entering the electric vehicle battering system with a Peltier module, the inlet coolant temperatures were 2.5-3.5℃ lower than those without the thermoelectric system. On the hot side, the maximum COP of the thermoelectric cooling module was 1.10 and 1.30 for water and nanofluids as coolant, respectively. The results obtained from the present approach can be used to optimize the battery cooling technique to operate in an appropriate temperature range for getting higher energy storage, durability, lifecycles, and efficiency.


2020 ◽  
Vol 181 ◽  
pp. 02005
Author(s):  
Juan José Milón Guzmán ◽  
Sergio Leal Braga ◽  
Juan Carlos Zúñiga Torres ◽  
Herbert Jesús Del Carpio Beltrán

A thermoelectric cooling system supplied by photovoltaic solar energy was built and evaluated with different thermal loads. The thermoelectric cooling module consumes 70 W, it is supplied by a photovoltaic system of 90 W and 40 Ah battery. The voltage and electrical current in each component (panels, battery, and electric charge) has been measured. The tests were performed with different thermal loads placed in glass containers used for vaccines. To analyze the cooling and preservation process, the experiments were started at room temperature. The results show that the thermoelectric cooling system works for small thermal loads, and it could be applied to transport vaccines in isolated areas where people carry medicines in small containers that do not maintain the temperature necessary for the conservation of vaccines.


2012 ◽  
Vol 163 ◽  
pp. 226-232
Author(s):  
M.H. Hsueh

The research is presented a kind of cooling device for a vehicles brake cooling system, which comprises a thermoelectric cooling (TEC) chip and a heat exchange system. The disc-brake and drum-brake systems are discussed in the research. After inputting electric power, the TEC chip provides one cooling surface which is stick on the brake system and absorbs the heat from the brake pads or shoes. The other surface releases heat which is absorbed by a recycle water-cooling system to discharge the heat by water-cooled radiator to the surrounding. It decreased the working temperature of the brake system about 30% at most after using this cooling device and increased the braking force about 30% at least. There is a temperature control device for the device which can start the TEC chip when the temperature of the brake pads or shoes exceeded 50, which is the lowest temperature that the brake pads or shoes can maintain the most performance of the braking force. The device can efficiently keep the braking force when the driver uses the brake to reduce the vehicles speed for a long time and provide the safety for the driver.


Author(s):  
Yasser Abdulrazak Alghanima ◽  
Osama Mesalhy ◽  
Ahmed Farouk Abdel Gawad

This paper presents a CFD and experimental study of the thermal behavior of the thermoelectric-compartment in a hybrid household-refrigerator that combines thermoelectric and vapor-compression technologies. The hybrid refrigerator has three compartments. One of them is driven by a thermoelectric cooling system, which was made of one Peltier module and two fan-cooled heat sinks mounted on the hot and cold sides. The simulation results were compared with experimental measurements and showed a good agreement. The performance of the thermoelectric refrigerator was tested with changing the pushing direction. Two pushing directions for the fan were examined. In the first one (direction-I), the fan was fixed such that it sucked the air beside the cold heat sink. While in the second direction (direction-II), the fan was assumed to be flipped to push the air over the cold-side heat sink. The results showed that the second fan direction (direction-II) is more effective for heat transfer mechanism between the cold-side heat sink and the inside air of the thermoelectric-compartment.


2000 ◽  
Author(s):  
M. J. Ellsworth ◽  
R. E. Simons

Abstract This paper discusses a methodology for incorporating the behavior of a thermoelectric cooling module in a finite element model of an electronic chip module. A background discussion of thermoelectric cooling is provided followed by a discussion of algebraic solutions for either chip temperature or allowable power on a uniformly powered multi-chip module. The basis and method of implementing an integrated thermoelectric-conduction model in ANSYS is presented. Example calculations are presented and discussed for a thermoelectrically cooled non-uniformly powered MCM. A “quasi-superposition” approach combining results obtained by 1-D algebraic solutions with thermoelectric cooling, with ANSYS results without thermoelectric cooling is also discussed. This approach offers a means to estimate the chip temperatures on an MCM cooled by a thermoelectric module without the need to actually build a detailed and time consuming finite element model of the thermoelectric module.


2021 ◽  
Vol 24 ◽  
pp. 100877
Author(s):  
S. Wiriyasart ◽  
P. Suksusron ◽  
C. Hommalee ◽  
A. Siricharoenpanich ◽  
P. Naphon

2014 ◽  
Vol 44 (6) ◽  
pp. 1566-1572 ◽  
Author(s):  
Naim Derebasi ◽  
Muhammed Eltez ◽  
Fikret Guldiken ◽  
Aziz Sever ◽  
Klaus Kallis ◽  
...  

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