scholarly journals Electrical Energy Harvesting from Cooker’s Wasted Heat with Using Conduction Cooling

2018 ◽  
Vol 152 ◽  
pp. 02021
Author(s):  
Wincent Ghafour Amouzard Mahdiraji
Keyword(s):  
Thermoelectric Generator ◽  
Average Power ◽  
Electrical Energy ◽  
Maximum Temperature ◽  
Minimal Amount ◽  
Technology Advancement ◽  
In Series ◽  
Conduction Cooling ◽  
Wasted Heat ◽  
Wasted Energy

In order meet the demand of electricity in current era, the need for new sources of energy even in very minimal amount, could be done with proper research and technology advancement in order to convert as much wasted energy as possible. Collecting and analyses cooker’s wasted heat as a main wasted energy source become the main interest for this research. This application can be installed either in household usage or commercial usage. Based on majority stove in household datasheet it shown that the efficiency of the stove is approximately 50%. With half of the efficiency turn into wasted heat, this application is suitable for thermoelectric generator (TEG) to harvest the heat. The objective of this research is to determine whether the thermoelectric generator (TEG) would able to power the 3V LED light as a small lighting system in household. Several designs with five TEGs in series circuit are tested to the application to analyses which method generated a better result. Since this research only focus in using a conduction cooling, aluminum heat sink will be utilized either for heat absorption or heat rejection. The maximum temperature differences between hot side and cold side is 209.83 °C with average power approximately 0.1 W.

scholarly journals Heat Utilization of Incinerator Chimney as Electrical Energy using a Thermoelectric Generator

2018 ◽  
Vol 1 (2) ◽  
pp. 51-58
Author(s):  
Usman Syamsuddin ◽  
Zulkifli Djafar ◽  
Thomas Tjandinegara ◽  
Zuryati Djafar ◽  
Wahyu Haryadi Piarah
Keyword(s):  
Temperature Difference ◽  
Alternative Energy ◽  
Thermoelectric Generator ◽  
Electrical Energy ◽  
Maximum Temperature ◽  
Test Results ◽  
Energy Potential ◽  
Maximum Temperature Difference ◽  
Thermoelectric Element ◽  
In Series

The thermoelectric generator (TEG) has long been used to produce electrical energy where when a temperature difference occurs between two different semiconductor materials, this thermoelectric element will produce a voltage difference and flow an electric current. This principle is known as the 'Seebeck effect'. This research was conducted to determine the electrical energy potential of the TEG module as an alternative energy source by utilizing chimney heat from an incinerator. The test was carried out with a variation of 1, 2 and 3 m chimney height with treatment without compaction and compaction of waste. The test results show that with 12 TEG modules arranged in series electricity can produce an output voltage with a maximum temperature difference of each  ΔV 3,31  Volt ; ΔT 15,0 °C (1 m), ΔV 3,92 Volt; ΔT 17,8 °C (2 m),  ΔV 4,84 Volt ; ΔT 22,0 °C (3 m) while the compaction of each value ΔV 6,34  Volt ; ΔT 29,2 °C (1 m), ΔV 7,69 Volt ; ΔT 35,2 °C (2 m),  ΔV 9,09 Volt ; ΔT 41,5 °C (3 m). The potential power that can be produced is as big as 3,22 W (1 m); 4,56 W (2 m); 6,88 W (3 m) while the compaction of waste is equal to each value 11,80 W (1 m); 17,36 W (2 m); 24,25 W (3 m). The addition of chimney height variation resulted in an increase in the hot side temperature (Th), cold side (Tc) and temperature difference (dT) so that heat energy and power energy increased.

scholarly journals Comparative Analysis of Voltage, Current and Power Produced in a Piezoelectric System from Human Foot Beats

2020 ◽  
pp. 10-22
Author(s):  
Godwin Chukwunonyelum Nworji ◽  
Peter Uchenna Okoye ◽  
Uche V. Okpala ◽  
Ngozi Agatha Okereke
Keyword(s):  
Piezoelectric Materials ◽  
Mechanical Energy ◽  
Electrical Energy ◽  
Rechargeable Battery ◽  
Minimal Amount ◽  
Anambra State ◽  
Human Foot ◽  
In Series ◽  
Development Goals ◽  
Lead Acid

Aims: This study analysed and compared the amount of voltage, current and power generated in a piezoelectric system from human foot beats. Study Design: The study was an experimental study which made use of piezoelectric materials together with human loads (weights) from the foot beats of dancers in a dance club, and connected to a rechargeable battery and multimeter. In this system, mechanical deformation was expected to cause conversion of mechanical energy to electrical energy which can be stored in a rechargeable lead acid battery for future use. Place and Duration of Study: Awka Anambra State, Nigeria, between November 2018 and February 2020. Methodology: A sheet of plywood measuring 300 mm x 300 mm x 3 mm thick was placed on a hard wooden board of 300 mm x 300 mm x 25 mm thickwhere twelve piezoelectric sensors were connected in series with foam spring inserted as separators and to aid in returning after deformation. As the dancers step on the platform, multimetr was used to take the voltage and current readings while at the output point Lead acid rechargeable battery could be connected at the output point to store energy generated in the system and orLight Emitting Diodes (LED) and Universal Serial Bus (USB) outputs. Results: The result revealed that the amount of voltage, current and power generated in the system were principally dependent on the load (weight of dancers in kg). In this case, 1 foot beat of an average 50 kg dancer generated an average of 0.555 mV and 0.063 mA respectively. Whereas, 60 kg and 80 kg dancers generated 0.668 mV and 0.838 mV respectively, and 0.081 mA and 0.087 mA respectively. It further showed that at constant number of foot beats, the amount of voltage, current and power increases as the weight of dancer increases and the lesser the weight the more number of foot beats required to generate the same quantity of electricity. In this case, 100 foot beats of a 50 kg, 60 kg and 80 kg dancer generated 55.5 mV, 66.8 mV, and 84,1 mV of voltage; 6.3 mA, 8.2 mA, and 8.8 mA of current and 349.65 mW, 544.42 mW and 740.08 mW of power respectively. Conclusion: Implicitly, this system has the potential of alleviating the problem of electricity supply and meeting of vision 2030 Sustainable Development Goals for electricity mix in Nigeria. However, it is mostly required where there are high volumes of human traffic and places that consume minimal amount of electricity, since it usually generates very small amount of energy. In view of this, there is need for a more robust research in this area and increase genuine interest in alternative and sustainable energy research by the Nigerian government.

scholarly journals Potensi Tempurung Kelapa Sebagai Pembangkit Listrik Dengan Menggunakan Termoelektrik Generator

2022 ◽  
Vol 4 (3) ◽  
pp. 461-473
Author(s):  
Sintiani Perdani ◽  
Didik Ari Wibowo ◽  
Desmira Desmira
Keyword(s):  
Average Power ◽  
Electrical Energy ◽  
Data Retrieval ◽  
Temperature Limit ◽  
Coconut Shell ◽  
Maximum Temperature ◽  
Heating And Cooling ◽  
Average Current ◽  
Total Utilization ◽  
Coconut Shells

Around 35% of the total utilization of coconuts at this time is still not fully utilized. Thermoelectric is a technology that converts heat energy directly into electrical energy or converts electrical energy into heating and cooling energy. Data retrieval using two multimeters and an electric thermometer, data collection was carried out for 2 minutes. From the test results, this tool can produce an average voltage of 10.05 Volt for 200gram coconut shells, an average current of 0.99 Ampere and an average power of 13.84 Watts and can fully charge the battery up to 3 hours 33 minutes, while for 300 grams produces an average voltage of 10.59 Volts for 300gram coconut shells, an average current of 0.995 Ampere and an average power of 13.56 Watts and the battery can be fully charged in about 3 hours 36 minutes, while a coconut shell weighing 400 grams can produces an average voltage of 10.94 Volts, an average current of 1 Ampere and an average power of 13.70 Watts and the battery can be fully charged in about 3 hours 30 minutes. The more coconut shells used for combustion, the hotter the temperature and the faster the voltage and current are obtained, but with a note that the maximum temperature limit of the thermoelectric is T not more than 200o C. Keywords: Coconut Shell, Thermoelectric, Electrical Energy.

scholarly journals Temperature distribution analysis of monocrystalline photovoltaic panel for Photovoltaic-Thermoelectric generator (PV-TEG) hybrid application

2020 ◽  
Vol 17 (2) ◽  
pp. 858 ◽  
Author(s):  
Ruzaimi A. ◽  
Shafie S. ◽  
W. Z. W. Hassan ◽  
N. Azis ◽  
M. Effendy Ya'acob ◽  
...  
Keyword(s):  
Thermoelectric Generator ◽  
Waste Heat ◽  
Electrical Energy ◽  
Bottom Surface ◽  
Distribution Analysis ◽  
Photovoltaic Panel ◽  
In Series ◽  
Optimum Heat ◽  
Parallel Configuration ◽  
Temperature Levels

<span>An experiment has been carried out to prove the practicality of converting the waste heat from PV panels into electrical energy by observing the temperature levels and distribution of a conventional monocrystalline silicon (Mono c-Si) photovoltaic (PV) panels for photovoltaic-thermoelectric generator (PV-TEG) hybrid application of a Hybrid Agrivoltaic (HAV) Greenhouse System project. From the observation, highest temperature of the PV backside panel surface reached 81.1°C during solar noon and expected to reach even higher during hot season. The highest power output from the 160 numbers TEG modules in series and parallel configuration were calculated to reach 119 Watt during that time at ΔT 56.1 °C. This output is expected to fluctuate over the weather temperature fluctuation throughout the day. Meanwhile, for the heat distribution, it is best to apply the TEG arrays with optimized PV angle setup, where the temperature seems to be distributed evenly at all time, to provide optimum heat source to the TEG modules. It was concluded that the excess heat from the bottom surface of PV panels can be utilize by converting the heat via temperature differential to harvest additional electrical energy by integrating TEG system, hence maximizing the potential of solar radiation capacity in generating clean renewable energy.</span>

scholarly journals Renewable Energy from Cooking Stove Waste Heat Energy using Thermoelectric Generator for Night Market Application

2019 ◽  
Vol 8 (4) ◽  
pp. 1250-1255
Keyword(s):  
Seebeck Coefficient ◽  
Thermoelectric Generator ◽  
Waste Heat ◽  
Electrical Power ◽  
Electrical Energy ◽  
Small Magnitude ◽  
Excess Heat ◽  
Electric Generator ◽  
In Series ◽  
The Cost

Malaysia night market normally operated along a temporarily closed road. No electrical power provided by the authorities and therefore hawkers need to prepare their own. Currently, they are working with gasoline-electric generator. On top of the cost incurred, they also need to consume exhaust gas and noise from the machine. Further, this situation will also affect customers. With a high percentage of the hawkers involve with cooking activities using the LPG gas stove, excess heat is one of the potential energy which can be converted into electrical energy using a thermoelectric generator (TEG). The aim of this study is to convert the excess heat available used to powered night market electrical facilities. A set of experiments was conducted utilizing five units of TEG connected in series to convert excess heat from a butane gas stove to electrical power. The temperature at both the hot and cold sides of the TEG was recorded used to analyze the effect of power produced. Two electrical parameters namely voltage and current outputs were measured used to calculate the electrical power generated. The analysis focused on the two main governing parameters namely temperature different and Seebeck coefficient toward power generated. It was found that only some amount of excess heat was converted which produced up to 46.8 mW electrical power. This is based on the high temperature recorded at the cold side of the TEG. The almost constant trend showed in temperature different was contributed to a small magnitude of the Seebeck coefficient and so for the power generated. The trend showed by the power generated was also almost constant even the temperature on the hot side keep increasing. The energy conversion process was considered success and can be further increased by increasing the number of TEG units used as well as by incorporating a cooling mechanism as practiced by many researchers.

scholarly journals Study on footstep power generation using piezoelectric tile

2019 ◽  
Vol 15 (2) ◽  
pp. 593
Author(s):  
Anis Maisarah Mohd Asry ◽  
Farahiyah Mustafa ◽  
Sy Yi Sim ◽  
Maizul Ishak ◽  
Aznizam Mohamad
Keyword(s):  
Power Generation ◽  
Low Power ◽  
Piezoelectric Transducer ◽  
Mechanical Energy ◽  
Electric Energy ◽  
Electrical Energy ◽  
Piezoelectric Transducers ◽  
Energy Resources ◽  
In Series ◽  
Wasted Energy

<span>Electrical energy is important and had been demand increasingly. A lot of energy resources have been wasted and exhausted. An alternative way to generate electricity by using a population of human had been discovered When walking, the vibration that generates between the surface and the footstep is wasted. By utilizing this wasted energy, the electrical energy can be generated and fulfill the demand. The transducer that use to detect the vibration is a piezoelectric transducer. This transducer converts the mechanical energy into electrical energy. When the pressure from the footstep is applied to the piezoelectric transducer, it will convert the pressure or the force into the electrical energy. The piezoelectric transducer is connected in series-parallel coonection. Then, it is placed on the tile that been made from wood as a model for footstep tile to give pressure to the piezoelectric transducers. This tile can be placed in the crowded area, walking pavement or exercise instruments. The electric energy that generates from this piezoelectric tile can be power up low power appliances.</span>

Effect of series and parallel combination of photovoltaic thermal collectors on the performances of integrated active solar still

2021 ◽  
pp. 1-28
Author(s):  
G N Tiwari ◽  
Md Meraj ◽  
M.E. Khan ◽  
V K Dwevedi
Keyword(s):  
Water Depth ◽  
Electrical Energy ◽  
Solar Still ◽  
Packing Factor ◽  
Pv Module ◽  
Parallel Arrangement ◽  
Passive Solar Still ◽  
In Series ◽  
Parallel Case ◽  
Operating Temperature Range

Abstract In this paper, an analytical expression for hourly yield, electrical energy and overall exergy of self-sustained solar still integrated with series and parallel combination of photovoltaic thermal-compound parabolic concentrator (PVT-CPC) collectors have been derived. Based on numerical computations, it has been observed that the yield is maximum for all self-sustained PVT-CPC collectors are connected in series [case (i)]. Further, the daily yield and exergy increase with the increase of water depth unlike passive solar still for all collectors connected in series. However, overall exergy decreases with an increase of water depth for all collectors connected in parallel [case (iv)]. For numerical simulations, the total numbers of self-sustained PVT-CPC collectors has been considered as constant. Further, an effect of series and parallel combination of PVT-CPC collectors on daily yield, electrical energy and overall exergy have also been carried out. Following additional conclusions have also been drawn: (i) The daily yield of the proposed active solar still decreases with the increase of packing factor of semi-transparent PV module for a given water depth and electrical energy and overall exergy increase with water depth for case (i) as expected due to low operating temperature range at higher water depth in the basin. (i) The daily yield, electrical energy and overall exergy increase with the increase of water depth for all combination of series and parallel arrangement of PVT-CPC collectors for a packing factor of 0.22 as per our expectation.

A Creative Vibration Energy Harvesting System to Support a Self-Powered Internet of Thing (IoT) Network in Smart Bridge Monitoring

2020 ◽  
Author(s):  
Saman Farhangdoust ◽  
Claudia Mederos ◽  
Behrouz Farkiani ◽  
Armin Mehrabi ◽  
Hossein Taheri ◽  
...  
Keyword(s):  
Energy Harvesting ◽  
Cantilever Beam ◽  
Average Power ◽  
Electrical Energy ◽  
Laser Vibrometer ◽  
Stay Cable ◽  
Fe Modelling ◽  
Vibration Energy Harvesting ◽  
Piezoelectric Energy ◽  
Energy Harvesting System

Abstract This paper presents a creative energy harvesting system using a bimorph piezoelectric cantilever-beam to power wireless sensors in an IoT network for the Sunshine Skyway Bridge. The bimorph piezoelectric energy harvester (BPEH) comprises a cantilever beam as a substrate sandwiched between two piezoelectric layers to remarkably harness ambient vibrations of an inclined stay cable and convert them into electrical energy when the cable is subjected to a harmonic acceleration. To investigate and design the bridge energy harvesting system, a field measurement was required for collecting cable vibration data. The results of a non-contact laser vibrometer is used to remotely measure the dynamic characteristics of the inclined cables. A finite element study is employed to simulate a 3-D model of the proposed BPEH by COMSOL Multiphasics. The FE modelling results showed that the average power generated by the BPEH excited by a harmonic acceleration of 1 m/s2 at 1 Hz is up to 614 μW which satisfies the minimum electric power required for the sensor node in the proposed IoT network. In this research a LoRaWAN architecture is also developed to utilize the BPEH as a sustainable and sufficient power resource for an IoT platform which uses wireless sensor networks installed on the bridge stay cables to collect and remotely transfer bridge health monitoring data over the bridge in a low-power manner.

scholarly journals Real world assessment of an auto-parametric electromagnetic vibration energy harvester

2017 ◽  
Vol 29 (7) ◽  
pp. 1481-1499 ◽  
Author(s):  
Yu Jia ◽  
Jize Yan ◽  
Sijun Du ◽  
Tao Feng ◽  
Paul Fidler ◽  
...  
Keyword(s):  
Parametric Resonance ◽  
Real World ◽  
Average Power ◽  
Electrical Energy ◽  
Wireless Sensor ◽  
Vibration Energy ◽  
Vibration Energy Harvesting ◽  
Vibration Energy Harvester ◽  
Sinusoidal Input ◽  
Micro Electromechanical System

The convention within the field of vibration energy harvesting has revolved around designing resonators with natural frequencies that match single fixed frequency sinusoidal input. However, real world vibrations can be random, multi-frequency, broadband and time-varying in nature. Building upon previous work on auto-parametric resonance, this fundamentally different resonant approach can harness vibration from multiple axes and has the potential to achieve higher power density as well as wider frequency bandwidth. This article presents the power response of a packaged auto-parametric VEH prototype (practical operational volume of ∼126 cm−3) towards various real world vibration sources including vibration of a bridge, a compressor motor as well as an automobile. At auto-parametric resonance (driven at 23.5 Hz and 1 g rms), the prototype can output a peak of 78.9 mW and 4.5 Hz of −3dB bandwidth. Furthermore, up to ∼1 mW of average power output was observed from the harvester on the Forth Road Bridge. The harvested electrical energy from various real world sources were used to power up a power conditioning circuit, a wireless sensor mote, a micro-electromechanical system accelerometer and other low-power sensors. This demonstrates the concept of self-sustaining vibration powered wireless sensor systems in real world scenarios, to potentially realise maintenance-free autonomous structural health and condition monitoring.

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