DESIGN AND CONSTRUCTION OF A SIMPLE THERMOELECTRIC GENERATOR HEAT EXCHANGER FOR POWER GENERATION FROM SALINITY GRADIENT SOLAR POND

Solar pond is one source of renewable thermal energy. The solar pond collects and stores thermal energy at the lower zone of the solar pond. The temperature at the lower zone can reach up to 90 °C. The solar pond is capable storing thermal energy for a long period. The stored thermal energy can be converted into electricity by using thermoelectric generators. These thermoelectric generators can be operated using the cold and hot zones from a solar pond. In this paper, the experimental investigation of power generation from the solar pond using thermoelectric generator and simple heat exchanger is discussed. A maximum of 7.02 W of electrical power output was obtained from a simple heat exchanger with 40 thermoelectric modules.

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Power generation enhancement in a salinity-gradient solar pond power plant using thermoelectric generator

Energy Conversion and Management ◽

10.1016/j.enconman.2017.01.031 ◽

2017 ◽

Vol 136 ◽

pp. 283-293 ◽

Cited By ~ 47

Author(s):

Behrooz M. Ziapour ◽

Mohammad Saadat ◽

Vahid Palideh ◽

Sadegh Afzal

Keyword(s):

Power Generation ◽

Power Plant ◽

Thermoelectric Generator ◽

Salinity Gradient ◽

Solar Pond

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Experimental Validation of Temperature Distributions Across a Heat Exchanger for a Thermoelectric Generator

Volume 7: Fluids and Heat Transfer, Parts A, B, C, and D ◽

10.1115/imece2012-88282 ◽

2012 ◽

Cited By ~ 1

Author(s):

Megan Dove ◽

Jaideep Pandit ◽

Srinath Ekkad ◽

Scott Huxtable

Keyword(s):

Heat Exchanger ◽

Thermoelectric Generator ◽

Experimental Validation ◽

Electrical Power ◽

Thermoelectric Generators ◽

Cfd Model ◽

Temperature Distributions ◽

Performance Predictions ◽

Computational Fluid Dynamics Cfd ◽

The Difference

Thermoelectric generators (TEGs) are currently a topic of interest in the field of energy harvesting for automobiles. In applying TEGs to the outside of the exhaust tailpipe of a vehicle, the difference in temperature between the hot exhaust gases and the automobile coolant can be used to generate a small amount of electrical power to be used in the vehicle. The amount of power is anticipated to be a few hundred watts based on the temperatures expected and the properties of the materials for the TEG. This study focuses on developing efficient heat exchanger modules in order to maximize the power generation for a given vehicle and TEG. A computational fluid dynamics (CFD) model run by the authors has provided performance predictions for various cases on the cooling side of the heat exchanger. This paper discusses the setup and results of the experimental validation for the CFD model for the proposed TEG heat exchanger module.

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Experimental Investigation of Power Generation from Salinity Gradient Solar Pond Using Thermoelectric Generators for Renewable Energy Application

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.393.809 ◽

2013 ◽

Vol 393 ◽

pp. 809-814 ◽

Cited By ~ 4

Author(s):

Baljit Singh ◽

Jaisatia Varthani ◽

Muhammed Fairuz Remeli ◽

Lippong Tan ◽

Abhijit Date ◽

...

Keyword(s):

Power Generation ◽

Temperature Difference ◽

Cold Water ◽

Salinity Gradient ◽

Convective Zone ◽

Electricity Production ◽

Low Grade ◽

Thermoelectric Generators ◽

Solar Pond ◽

Low Grade Heat

Low grade heat (<100°C) is currently converted into electricity by organic rankine cycle (ORC) engines. ORC engines require certain threshold to operate as the organic fluid generally boils at more than 50°C, and fails to operate at lower temperature. Thermoelectric generators (TEGs) can operate at very low temperature differences and can be good candidate to replace ORC for power generation at low temperatures. In this paper, the potential of power generation from TEG and salinity-gradient solar pond (SGSP) was investigated. SGSP is capable of storing heat at temperature up to 80°C. The temperature difference between the upper convective zone (UCZ) and lower convective zone (LCZ) of a SGSP can be in the range of 40°C 60°C. This temperature difference can be used to power thermoelectric generators (TEG) for electricity production. This paper present result of a TEG system designed to be powered by the hot and cold water from the SGSP. The system is capable of producing electricity even on cloudy days or at night as the SGSP acts as a thermal storage system. The results obtained have indicated significant prospects of such system to generate power from a low grade heat for remote area power supply.

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Design and Prototype of Electric Smart Stove

Journal of Electrical, Electronic, Information, and Communication Technology ◽

10.20961/jeeict.3.1.49372 ◽

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.

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Experimental Analysis of Thermoelectric Heat Exchanger for Power Generation from Salinity Gradient Solar Pond Using Low-Grade Heat

Journal of Electronic Materials ◽

10.1007/s11664-016-5009-0 ◽

2016 ◽

Vol 46 (5) ◽

pp. 2854-2859 ◽

Cited By ~ 4

Author(s):

Baljit Singh ◽

Nuraida ‘Aadilia Baharin ◽

Muhammad Fairuz Remeli ◽

Amandeep Oberoi ◽

Abhijit Date ◽

...

Keyword(s):

Power Generation ◽

Heat Exchanger ◽

Experimental Analysis ◽

Salinity Gradient ◽

Low Grade ◽

Solar Pond ◽

Low Grade Heat ◽

Thermoelectric Heat

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Heat-Exchanger Effectiveness in Thermoelectric Power Generation

Journal of Heat Transfer ◽

10.1115/1.3244528 ◽

1981 ◽

Vol 103 (4) ◽

pp. 693-698 ◽

Cited By ~ 3

Author(s):

M. S. Bohn

Keyword(s):

Heat Transfer ◽

Power Generation ◽

Heat Exchanger ◽

Thermoelectric Power ◽

Thermoelectric Generator ◽

Electrical Power ◽

Thermoelectric Power Generation ◽

Cold Fluid ◽

Thermoelectric Heat ◽

Two Fluid

This paper presents a method for calculating the electrical power generated by a thermoelectric heat exchanger. The thermoelectric heat exchanger transfers heat from a hot fluid to a cold fluid through a thermoelectric generator located in the heat-exchanger wall separating the two fluid streams. The method presented here is an extension of the NTU method used to calculate heat-exchanger heat-transfer effectiveness. The effectiveness of thermoelectric power generation is expressed as the ratio of the actual power generated to the power that would be generated if the entire heat-exchanger area were operating at the inlet fluid temperatures. This method collapses results for several heat-exchanger configurations and allows a concise presentation of the results. It is shown that the NTU method of calculating heat-exchanger heat-transfer effectiveness can be modified in a similar way.

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