scholarly journals Design of Water Temperature Stabilizer Using Element Peltier and Atemga16 for Louhan’s Aquariums

2021 ◽  
Vol 2117 (1) ◽  
pp. 012016
Author(s):  
S Nurmuslimah ◽  
N Saidatin ◽  
M Rahadhianto
Keyword(s):  
Water Temperature ◽  
Cooling System ◽  
Thermoelectric Cooler ◽  
Test Results ◽  
Peltier Element ◽  
Running Water ◽  
Set Point ◽  
Turn On ◽  
Working Principle ◽  
Avr Microcontroller

Abstract This study aims to design a water temperature stabilizer in the louhan fish aquarium by using a cooling system based on a Thermoelectric Cooler (TEC) or a Peltier element. The system is built using several tools including a DS18B20 temperature sensor, a relay circuit and 3 Peltier elements. and AVR microcontroller. Temperature control is done by comparing the desired temperature set-point with the temperature from the sensor. The test was carried out by stabilizing the water temperature with two conditions, namely running water and inot flowing water and observing the behavior of the fish while the stabilizer system was running. The working principle of the stabilizer is that the sensor will read the water temperature, then the data is processed on the microcontroller. The temperature data will be compared with a predetermined set-point value which is around 29°C. If the temperature is more than 290C, then the cooler will turn on. The on-off control signal is generated by the microcontroller to turn on the relay and cooling system. From the test results obtained, the tool is able to stabilize the temperature of 290C and shows the behavior of fish with good conditions.

Upper and Lower Threshold Limit of Chilled and Condenser Water Temperature Set-Points During ANN Based Optimized Control

2021 ◽  
Author(s):  
Sang Hun Yeon ◽  
Won Hee Kang ◽  
Je Hyeon Lee ◽  
Kwan Woo Song ◽  
Young Tae Chae ◽  
...  
Keyword(s):  
Water Temperature ◽  
Energy Savings ◽  
Cooling System ◽  
Training Data ◽  
System Control ◽  
Outlet Temperature ◽  
Outdoor Air ◽  
Set Point ◽  
Wide Range ◽  
Artificial Neural Network Ann

Abstract In this study, an artificial neural network (ANN) based real-time predictive control and optimization algorithm for a chiller-based cooling system was developed and applied to an actual building to analyze its cooling energy saving effects through in-situ application and actual measurements. For this purpose, we set the cooling tower’s condenser water outlet temperature and the chiller’s chilled water outlet temperature as the system control variables. During the analysis, unexpected abnormal data were observed due to insufficient training data and a limited consideration of the outdoor air wet-bulb temperature when determining the condenser water temperature set-point. Therefore, it is necessary to build training data under a wide range of conditions and to set the condenser water temperature set-point lower limit to be outdoor air wet-bulb temperature +3.6°C in the outdoor wet-bulb temperature region above 23°C, so that further energy savings can be achieved.

scholarly journals The Effect of Temperature Variation on Water Scrubber System to Optimize Biogas Purification

2018 ◽  
Vol 42 ◽  
pp. 01006 ◽  
Author(s):  
Arief Abdurrakhman ◽  
Dhirga Kurniawan ◽  
Moch Machrus Adhim
Keyword(s):  
Water Temperature ◽  
Cooling System ◽  
Effect Of Temperature ◽  
Water Cooling ◽  
Test Results ◽  
Primary Element ◽  
Biogas Purification ◽  
Initial Content ◽  
Water Cooling System ◽  
Water Scrubber

Biogas is made from the anaerobic process, which methane (CH4) as a primary element with some other elements. The composition of biogas in the experiment still contains H2S gas pollutants by 41,76 ppm. The amount of H2S content can reduce CH4 composition, so it has a lot of efforts to reduce H2S in biogas. One of them used water scrubber system, but the water scrubber system always changed according to the temperature ambient. It can cause inconsistency biogas quality, which is the reduction of H2S always changed. Another study showed that the speed of the water flow of 5.5 to 11 liters / min and water temperature of 10-25 °C, can reduce the H2S content in biogas up to 4.5 - 8%, of the initial content by 37,8% to 43.6%. So that is needed the design of water cooling system on purifying biogas. While this research aims that the lower water temperature will increase the effectiveness of the reduction of H2S with water temperature 15-20 °C. From the experiments that have been carried out test results obtained when the water temperature 20 °C the content of H2S was 0.7 ppm when the water temperature 17°C H2S content was 0.6 ppm when the water temperature 15 ° C H2S was 0.5 ppm.

scholarly journals Fuzzy Logic Control Design On Buck Converter For Thermo Electric Air Cooler Power Supply

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Muhammad Wildan Alim ◽  
Novie Ayub Windarko ◽  
Renny Rakhmawati
Keyword(s):  
Fuzzy Control ◽  
Water Temperature ◽  
Air Temperature ◽  
Cooling System ◽  
Buck Converter ◽  
Thermo Electric ◽  
Set Point ◽  
Air Cooler ◽  
Water Cooler ◽  
Loop Condition

The air conditioning system that is commonly used today is an Air Conditioner (AC). Unfortunately, this system is a big contributor to global warming. Often times, we find that air conditioners are only used to cool only a small part of a room for individual comfort. Therefore, a new breakthrough is needed from a cooling system that does not use chemicals so that it is environmentally friendly, namely using the Thermo Electric Cooler (TEC) cooling module which utilizes the cold side of the Thermo Electric Cooler (TEC). The size of the DC input voltage on the Thermo Electric Cooler (TEC) is adjusted using a buck converter with fuzzy control. When the buck converter closed loop condition with fuzzy control has a rise time value, the settling time and error percentage have a relatively better value than the open loop condition. When the buck converter set point 40V, the minimum water temperature in the air cooler can be reached 220C, when the buck converter set point is 48V the minimum water temperature in the water cooler can be reached 190C, and when the buck converter set point is 56V the minimum water temperature in the air cooler can be reached 180C. When the water cooler uses air cooler by Peltier, the input air temperature and output air temperature decrease in temperature around 10C. this is caused by the evaporative effect caused by water cooled by the peltier.

scholarly journals Design of Portable Conditioning Chamber with Peltier Element for Transfusion Blood Temperature

2020 ◽  
Vol 9 (3) ◽  
pp. 812-816
Keyword(s):  
Control System ◽  
Temperature Sensor ◽  
Conditioning Chamber ◽  
Peltier Element ◽  
Temperature Range ◽  
Turn On ◽  
Blood Temperature ◽  
Peltier Cooler ◽  
Working Principle ◽  
Save Energy

A research has been conducted on the design of conditioning chambers with Peltier elements aimed at controlling transfusion blood temperature and analyzing the control system that has been made. The working principle of the control system that is made is the temperature sensor will read the temperature in the chamber, if the temperature reads above 10 °C, the relay will light up and electricity will flow so that the Peltier cooler will work, if the temperature has reached 10 °C, then the relay will off and the electricity will stop to save energy. The relay will turn on again if the temperature rises above 10 °C. The results obtained from this experiment is the Peltier element can cool down for 30 minutes with variations in load 0 mL, 350 mL, 700 mL, 1050 mL, and 1400 mL in the temperature range of 2 °C to 10 °C.

Theoretical Calculation and Experimental Research on Sequential Turbocharging of a Marine Diesel Engine

2011 ◽  
Vol 305 ◽  
pp. 416-422
Author(s):  
Peng Qi Zhang ◽  
Qing Lin He ◽  
Yin Yan Wang
Keyword(s):  
Diesel Engine ◽  
Theoretical Calculation ◽  
Experimental Research ◽  
Marine Diesel Engine ◽  
Test Results ◽  
Low Load ◽  
Marine Diesel ◽  
Working Principle ◽  
Test Result

The paper introduces the working principle of the sequential turbo-charging (STC) system of multi-turbocharger. To improve low-load performance and operating economy of the 234V12 diesel engine, a STC system of multi-turbocharger for the diesel engine was designed. Theoretical calculation and experimental research was done on this improved marine diesel engine. Then, a 3-phase STC system is presented by analyzing and comparing the test result and the switching boundary of this system is confirmed. The test results show that the low-load performance is improved obviously by use of multi-turbocharger STC system.

scholarly journals Kinerja Susunan dan Jumlah Elemen Peltier pada TEC Alat Transportasi Ikan Segar

2019 ◽  
Vol 14 (1) ◽  
pp. 75
Author(s):  
Tri Nugroho Widianto ◽  
Caesar Mahendra
Keyword(s):  
Energy Consumption ◽  
Heat Pipe ◽  
Performance Test ◽  
Thermoelectric Cooler ◽  
Peltier Element

AbstrakKinerja cara penyusunan dan jumlah elemen peltier pada pendingin termoelektrik (TEC) alat transportasi ikan segar telah diuji. TEC alat transportasi ikan segar terdiri dari komponen utama yaitu elemen peltier, heatsink, kipas, bracket alumunium dan heat pipe. Uji kinerja dilakukan terhadap susunan dan jumlah elemen peltier TEC alat transportasi ikan segar dengan variasi dua buah TEC dengan elemen peltier tunggal, dua buah TEC dengan elemen peltier ganda dan empat buah TEC dengan elemen peltier tunggal. Parameter yang diamati meliputi suhu ruang penyimpanan ikan, suhu heatsink dan kebutuhan energi TEC. Pengukuran dilakukan selama 120 menit dengan interval pengukuran setiap 10 menit. Suhu ruang peti penyimpanan ikan dengan dua buah TEC peltier ganda adalah 18,8 °C, dua buah TEC peltier tunggal sebesar 13,5 °C dan empat buah TEC peltier tunggal sebesar 8,5 °C. Kebutuhan energi TEC dengan dua buah elemen ganda sebesar 46 Watt, TEC dengan 2 buah elemen peltier tunggal sebesar 83 Watt, sedangkan pada 4 elemen peltier tunggal 166 Watt.   Performance of Arrangement and Number the Peltier Elements on Refrigerated Fish Container TECAbstractPerformance of arrangement and number of peltier elements on the refrigerated fish container TEC (thermoelectric cooler) had been tested. The TEC of refrigerated fish container was composed of peltier elements, a heatsink, a fan, an aluminum bracket, and a heat pipe. The arrangement and number of peltier element variations in each refrigerated container box were two TEC composed of a single peltier element, two TEC composed of dual peltier element and four TEC composed of a single peltier element. Performance test was conducted by measuring temperature of box container, temperature of heatsink, and the energy consumption of TEC. Performance test carried out at every 10 minutes for 120 minutes. Temperature of refrigerated container box composed of two TEC with dual peltier element was 18.8 °C, two TEC with single peltier element was 13.5 °C and four TEC with single peltier element was 8.5 °C. The energy consumption of refrigerated container box of two TEC composed dual peltier element was 46 Watts, two TEC composed of single peltier element was 83 Watts and four TEC composed of single peltier element were 166 Watts.

Test Results of Sintered Nanosilver Paste Die Attach for High-Temperature Applications

2016 ◽  
Vol 13 (1) ◽  
pp. 6-16 ◽  
Author(s):  
Paul Croteau ◽  
Sayan Seal ◽  
Ryan Witherell ◽  
Michael Glover ◽  
Shashank Krishnamurthy ◽  
...  
Keyword(s):  
High Temperature ◽  
Cooling System ◽  
Wide Band ◽  
Power Converter ◽  
Test Results ◽  
Wide Band Gap ◽  
Strain Behavior ◽  
Die Attach ◽  
Nanosilver Paste ◽  
Sintered Silver

The emergence of wide band gap devices has pushed the boundaries of power converter operations and high power density applications. It is desirable to operate a power inverter at high switching frequencies to reduce passive filter weight and at high temperature to reduce the cooling system requirement. Therefore, materials and components that are reliable at temperatures ranging from −55°C to 200°C, or higher, are needed. Sintered silver is receiving significant attention in the power electronic industry. The porous nature of sintered nanosilver paste with a reduced elastic modulus has the potential to provide strain relief between the die component and substrate while maintaining its relatively high melting point after sintering. The test results presented herein include tensile testing to rupture of sintered silver film to characterize stress-strain behavior, as well as die shear and thermal cyclic tests of sintered silver-bonded silicon die specimens to copper substrates to determine shear strength and reliability.

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