scholarly journals Performance Comparison Between Hot Mirror and Cold Mirror as a Beam Splitter on Photovoltaic - Thermoelectric Generator Hybrid Using LabVIEW Simulator

2021 ◽  
Vol 39 (5) ◽  
pp. 1609-1617
Author(s):  
Zuryati Djafar ◽  
Andi Zahirah Salsabila ◽  
Wahyu H. Piarah
Keyword(s):  
Solar Radiation ◽  
Thermoelectric Generator ◽  
Beam Splitter ◽  
Radiation Spectrum ◽  
Electrical Energy ◽  
Fresnel Lens ◽  
Performance Comparison ◽  
Spectral Irradiance ◽  
Thermoelectric Generators ◽  
Labview Program

Solar energy can be converted into electrical energy using photovoltaic (PV) and thermoelectric generators (TEG). In order to increase the effectiveness of energy absorption, a hot mirror or cold mirror spectrum separator is used. In this study, a simulation was carried out to see the effect of the cold mirror and hot mirror spectrum separator on the performance of the PV-TEG hybrid. Simulations are carried out using the LabVIEW program. The standard for the solar radiation spectrum used is AM1.5D. The incoming radiation is transmitted using a Fresnel lens to make it more focused and then transmitted to a cold mirror or hot mirror, where the spectral irradiance will be halved. Spectral irradiance with a wavelength of 400-690 nm will be directed to PV and a wavelength of 710-1150 nm will be directed to TEG. From the PV-TEG hybrid modeling and simulation using the LabVIEW program, the resulting power and efficiency are 240.635 W/m2 and 27% respectively for cold mirror and 228.835 W/m2 and 25.76% for hot mirror.

scholarly journals Effect of motorcycle exhaust pipe temperature and electrical circuit on harvested dc power from thermoelectric generators

2020 ◽  
Vol 10 (1) ◽  
pp. 41
Author(s):  
M. Mirmanto ◽  
H.S. Tira ◽  
A. Pabriansyah
Keyword(s):  
Thermoelectric Generator ◽  
Electrical Energy ◽  
Electrical Circuit ◽  
Exhaust Pipe ◽  
Thermoelectric Generators ◽  
Data Logger ◽  
Dc Power ◽  
Exhaust Heat ◽  
Parallel Circuit ◽  
Labview Program

The need for energy consumption nowadays becomes very important things, especially the need for electrical energy. Technology to convert heat into electricity directly can be realized using thermoelectric generators. To know the thermoelectric generator performance, this study performs an investigation of thermoelectric generator operated using motorcycle exhaust heat to generate DC power. Three identical thermoelectric generators model TE-MOD-5W5V-35S were used in this investigation. To generate different high temperatures the motorcycle was run at 1600 rpm, 2100 rpm, 3100 rpm. The circuits examined were series, parallel and combination of the two. All data were recorded using DAQ MX 9714 NI data logger that was connected to the PC using LabView program. The loads used in the current measurements were a thermoelectric cooler module model SP1848 and a fan 12 V - 0.13 A. Those two loads were installed in a parallel circuit. The results show that the tests without load produce the highest voltage, while the tests with the load result in the highest power. Increasing the temperature difference increases the power, and the parallel circuit results in the biggest power but the lowest voltage. The highest voltage of 3.3 V with series circuit was attained, and the highest power of 0.133 W with a parallel circuit was also obtained.

Experimental Study of Thermoelectric Generators

2014 ◽  
Vol 663 ◽  
pp. 299-303 ◽  
Author(s):  
Ubaidillah ◽  
Suyitno ◽  
Imam Ali ◽  
Eko Prasetya Budiana ◽  
Wibawa Endra Juwana
Keyword(s):  
Output Voltage ◽  
Thermoelectric Generator ◽  
Electrical Energy ◽  
Thermoelectric Generators ◽  
Data Logger ◽  
Computer Data ◽  
Standard Module ◽  
Self Powered ◽  
Resistive Loads ◽  
The Relationship

Thermoelectric generator is solid-state device which convert temperature difference, ∆T into electrical energy based on Seebeck effect phenomenon. The device has been widely used in self-powered system applications. This paper focuses on presentation of methodology for characterizing thermoelectric generators. The measurement of its behavior is performed by varying load resistances. A standard module of thermoelectric generator (TEC1-12710) is used in examination and an instrument setup consists of controllable heat source, controllable cooler, personal computer, data logger MCC DAQ USB-1208LS equipped with two sets of K-type thermocouples. The experiment is performed by measuring output voltage and output current in 4 values of temperature gradient by applying 10 values of resistive loads connected to the thermoelectric output wires. The common parameters studied in this research are output voltage, current and power. Generally, the relationship between parameters agrees with the basic theory and the procedure can be adopted for characterizing other type of thermoelectric generator.

Thermoelectric Generator–Integrated Solar Air Heater: A Compact Passive System

2020 ◽  
Vol 143 (4) ◽  
Author(s):  
Kumar Venkateshwar ◽  
Abu Raihan Mohammad Siddique ◽  
Syeda Tasnim ◽  
Hari Simha ◽  
Shohel Mahmud
Keyword(s):  
Thermoelectric Generator ◽  
Energy Requirement ◽  
Electrical Energy ◽  
Cold Weather ◽  
Space Heating ◽  
Solar Air Heater ◽  
Thermoelectric Generators ◽  
Passive System ◽  
Air Heater ◽  
Operational Range

Abstract Solar air heater is a promising, economically viable, and matured technology for space heating and drying applications. One of the primary reasons for the limited usage of a solar air heater in developing countries is the unavailability of continuous electricity supply. Although the solar air heater is theoretically passive, practically electrical energy is required to achieve a steady airflow. Therefore, the unreliability of electricity forces people to rely on firewood for heat during the cold weather, which has severe effects on health and climate change. In the present work, the potential of thermoelectric generators (TEGs) to meet the electrical energy requirement of a solar air heater is studied. Two configurations, each with three different numbers of stages of TEGs, are analyzed. The effect of the integration of TEGs on the thermal performance of solar air heater is analyzed alongside the comparison between the electrical energy required by solar air heaters and electrical energy generated upon the integration of TEGs. A numerical model is developed in matlab and validated using the experimental results. One of the designs meets the electrical energy requirement of the fan in a wide operational range but lowers the process heat generation by approximately 1–6.25%. The electrical energy generated by the other design falls short of demand posed by the system in most operating range. However, the thermal energy generation is marginally higher compared to that of the conventional solar air heater.

scholarly journals Investigation of Solar Hybrid Electric/Thermal System with Radiation Concentrator and Thermoelectric Generator

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Edgar Arturo Chávez Urbiola ◽  
Yuri Vorobiev
Keyword(s):  
Solar Radiation ◽  
Cooling System ◽  
Electrical Energy ◽  
Thermal System ◽  
Thermoelectric Generators ◽  
Cold Side ◽  
Thermal Systems ◽  
Running Water ◽  
Concentrated Solar Radiation ◽  
Radiation Sensors

An experimental study of a solar-concentrating system based on thermoelectric generators (TEGs) was performed. The system included an electrical generating unit with 6 serially connected TEGs using a traditional semiconductor material, Bi2Te3, which was illuminated by concentrated solar radiation on one side and cooled by running water on the other side. A sun-tracking concentrator with a mosaic set of mirrors was used; its orientation towards the sun was achieved with two pairs of radiation sensors, a differential amplifier, and two servomotors. The hot side of the TEGs at midday has a temperature of around 200°C, and the cold side is approximately 50°C. The thermosiphon cooling system was designed to absorb the heat passing through the TEGs and provide optimal working conditions. The system generates 20 W of electrical energy and 200 W of thermal energy stored in water with a temperature of around 50°C. The hybrid system studied can be considered as an alternative to photovoltaic/thermal systems, especially in countries with abundant solar radiation, such as Mexico, China, and India.

scholarly journals Design and Prototype of Electric Smart Stove

2021 ◽  
Vol 3 (1) ◽  
pp. 1
Author(s):  
Sa'adilah - Rosyadi ◽  
Bayu Rahmat Setiadi ◽  
Joko Slamet Saputro
Keyword(s):  
Thermoelectric Generator ◽  
Electrical Power ◽  
Electric Energy ◽  
Thermoelectric Module ◽  
Electrical Energy ◽  
Thermoelectric Generators ◽  
Fourth Stage ◽  
Second Stage ◽  
Third Stage ◽  
Electrical Power Output

The prototype of the electric smart stove is an electric stove with briquette fuel from teak leaf waste. The thermoelectric module used is 12 units of a Peltier TEC-12706. Thermoelectric generators take advantage of the Seebeck effect with temperature differences from both sides of the Peltier will produce electrical energy. The developing prototype method of an electric smart stove is carried out in 4 stages. First stage, analyzing geometry requirements and smart stove shape. Second stage is the process making of an electric smart stove. Third stage, installation of a power plant. The fourth stage, measurement of electrical power output. Based on the experiment, it is found that the thermoelectric generator produces 1.31 volts of electrical energy with a delta T of 40 degrees Celsius. As the result, an electric smart stove has not been able to charge the battery because the electric energy produced tends to be small.

scholarly journals Thermoelectric generators

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Jay Patel ◽  
Manmohan Singh
Keyword(s):  
Heat Conduction ◽  
Silicon Germanium ◽  
Thermoelectric Generator ◽  
Electrical Energy ◽  
Thermoelectric Generators ◽  
Full Model ◽  
Conductive Material ◽  
Conductive Plate ◽  
Voltage Difference ◽  
The World

As the world is changing and developing with every passing day, the requirements of power are also increasing. There is a shift in utilizing the electrical energy as much as possible and for this reason, many countries have already made policies for completely ruling out the machines which don’t run on electricity. Apart from electricity, there are other forms of energy that can be used to convert that form into a more desirable form. For example, in a plant where the smoke comes out of the chimneys or in a car, the smoke carries a large amount of thermal energy with it. This energy is nothing but a waste and reduction in the efficiency of the systems. If somehow, this energy could be recovered, the efficiency can be increased. Thermoelectric generators serve for this purpose. Thermos electric generators get the heat and using the principle of heat conduction and p and n type materials, the heat can be directly converted into the electricity. There are many materials available in the market for p and n type but in our case, we chose silicon germanium which is also one of the most commonly used. First of all, a single module of thermoelectric generator will be made using p and n type material, as well as using conductive material and some ceramic substance. Then, the entire assembly will be made and this assembly will be exported to Ansys where custom materials will be added and applied on to the geometry. After performing analysis on full model, a comparative study will be presented in which the effect of material of conductive plate on to the voltage difference will be studied

scholarly journals Extraction and Conversion of Exhaust Heat from Automobile Engine in to Electrical Energy

2018 ◽  
Vol 6 (4) ◽  
pp. 52-57
Author(s):  
Venkatesh. V
Keyword(s):  
Output Voltage ◽  
Thermoelectric Generator ◽  
Waste Heat ◽  
Electrical Energy ◽  
Thermoelectric Generators ◽  
Efficient Manner ◽  
Battery Charging ◽  
Automobile Engine ◽  
Exhaust Heat ◽  
Solid State Devices

Energy is vital for the progress of the nation and it has to be conserved in an efficient manner. Nowadays increasing worldwide problem is shortage of energy. In an Automobile out of the total heat supplied to the engine in the form of fuel, approximately 30 to 40 percent is converted into useful mechanical work and the remaining heat is expelled out as waste heat. This paper focus on the recovery and utilization of waste heat into useful electrical energy by using See back effect where in Thermoelectric Generators (TEG) are placed on the exhaust surface for converting heat directly into electrical energy. Thermoelectric generators are highly doped semiconductor solid state devices. The output voltage of the thermoelectric generator is given to a dc super lift converter circuit. The output of the super lift converter is used for battery charging.

scholarly journals Comparative Analysis of Thermoelectric Generators Parameters

2021 ◽  
Vol 16 ◽  
pp. 14-17
Author(s):  
M. Bensaada ◽  
F. Metehri ◽  
S. Della Krachai
Keyword(s):  
Comparative Analysis ◽  
Thermoelectric Generator ◽  
Electrical Energy ◽  
Power Source ◽  
Thermoelectric Device ◽  
Thermoelectric Generators ◽  
Small Satellite ◽  
Space Applications ◽  
Future Design ◽  
Secondary Power

Other sources of energy in space applications remain unexploited such as heat. Indeed the exchange of heat is considered generally on board spacecraft as hostile, destructive and undesirable, thereby a different means are used to reduce its effect on board spacecraft. Heat being an important source of energy, it remains badly exploited on spacecraft and its applications remain limited. We present in this paper one of the methods used to convert heat energy to electrical energy by using thermoelectric device, the goal becomes therefore to choose a device capable to give a best performances through a comparative analysis between different commercial thermoelectric generator devices to be able subsequently to make a choice of the component to be used for future design. This analysis will allow us thereafter to design a thermoelectric generator as secondary power source for small satellite by exploiting the external thermal properties of the spacecraft on orbit.

Performansi aktual modul photovoltaik dengan pengarah matahari

2018 ◽  
Vol 12 (2) ◽  
pp. 98 ◽  
Author(s):  
Jalaluddin . ◽  
Baharuddin Mire
Keyword(s):  
Solar Radiation ◽  
Local Time ◽  
Performance Characteristic ◽  
Electrical Energy ◽  
Photovoltaic Module ◽  
Experiment Data ◽  
Actual Performance ◽  
Pv Module ◽  
Solar Tracking ◽  
Pv Modules

Actual performance of photovoltaic module with solar tracking is presented. Solar radiation can be converted into electrical energy using photovoltaic (PV) modules. Performance of polycristalline silicon PV modules with and without solar tracking are investigated experimentally. The PV module with dimension 698 x 518 x 25 mm has maximum power and voltage is 45 Watt and 18 Volt respectively. Based on the experiment data, it is concluded that the performance of PV module with solar tracking increases in the morning and afternoon compared with that of fixed PV module. It increases about 18 % in the morning from 10:00 to 12:00 and in the afternoon from 13:30 to 14:00 (local time). This study also shows the daily performance characteristic of the two PV modules. Using PV module with solar tracking provides a better performance than fixed PV module. 

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