Thermoelectric Exhaust Heat Recovery for Hybrid Vehicles

Hussain, Quazi E.; Brigham, David R.; Maranville, Clay

doi:10.4271/2009-01-1327

Cited by 132 publications

(54 citation statements)

References 11 publications

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“…Substituting these parameters into equation 8 shows that the potential fuel, CO2 and fuel cost savings is 1.57% when using an exhaust heat recovery system with the same TEG efficiency and heat exchanger efficiency. This compares well with fuel savings claims made by Ford [2] and Honda [3]. …”

Section: Sae-supporting

confidence: 60%

“…As a general trend, as the rate of heat transfer increased, both the power output and the TEG efficiency increased. The TEG efficiencies measured are comparable with similar systems that make use of TEGs [2,19]. For the same 4 tests conducted in table 5, the pressure difference over the inlet and outlet of the exhaust duct was recorded.…”

Section: Experimental Testingmentioning

confidence: 66%

“…Large multinational car companies like BMW [1], Ford [2], Honda [3] and Renault [4] have demonstrated their interest in exhaust heat recovery, developing systems that make use of thermoelectric generators (TEGs). TEGs are heat engines with no moving parts.…”

Section: Introductionmentioning

confidence: 99%

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Experimental testing of a car exhaust heat recovery system utilising TEGs and heat pipes

Orr

Akbarzadeh

2016

VTE-J

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On the left is a schematic of the exhaust heat recovery system and on the right is the full system assembly.Orr, Bradley and Akbarzadeh, Aliakbar RMIT ABSTRACTExhaust heat recovery systems are used to make use of otherwise wasted heat from a car engine. The purpose of exhaust heat recovery systems is to potentially reduce the fuel consumption of the car and consequently reduce CO2 emissions and running costs. The unique system design described herein utilises thermoelectric generators (TEGs) and heat pipes with its key advantage being it is a passive solid state design. The use of heat pipes allows for more flexible designs as the TEG location is not limited to the exhaust pipe surface. Testing was undertaken on a car with a 3.0L V6 engine. The theoretical modeling was shown to be valid at relatively low exhaust temperatures but deviates at higher exhaust temperatures. It is believed that the heat pipes are operating beyond their capacity at higher temperatures so the model deviates. In all test conditions the power loss due to pressure drop in the exhaust duct was always lower than the electrical power output. Repeat tests were conducted and the results were found to be consistent. When testing the system at different orientations, the bottom heat mode was found to be the best option. After all testing, the maximum power output of the system was 38W from the 8 62mmX62mm TEGs used. The rate of heat transfer in this case was 1541W with the resultant TEG efficiency being 2.46%. The calculated potential reduction in CO2 emissions, fuel consumption and fuel costs was 1.57%.Paper Number Vol N, No N (YYYY) SAE-A Vehicle Technology Engineer -Journal (VTE-J)

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Section: Sae-supporting

confidence: 60%

Section: Experimental Testingmentioning

confidence: 66%

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Experimental testing of a car exhaust heat recovery system utilising TEGs and heat pipes

Orr

Akbarzadeh

2016

VTE-J

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“…1,2) A number of studies have addressed the TEG systems as a thermal energy recovery method in automobiles. [3][4][5][6] According to previous research achievements, it can be concluded that a high-efficiency heat exchanger is necessary to increase the amount of heat energy extracted from the exhaust gas. Continuous efforts have been made to maximize their efficiency, with methods mainly concentrating on changing the structure of the heat exchanger and introducing different heat transfer enhancement measures.…”

Section: Introductionmentioning

confidence: 99%

Influence of Heat Collection Plate Structure on Thermoelectric Generation Unit Performance for Radiant Waste Heat Recovery in Continuous Casting Process

Kuroki¹,

Tsutsumi²,

Murai³

et al. 2017

ISIJ Int.

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In recent years, environmental issues such as global warming and the energy resource depletion have become serious matters. Waste heat recovery can be one of the key technologies to solve these issues. Thermoelectric generator (TEG) is one of the promising technologies expected to play an important role for steel plant's waste heat recovery, particularly radiant heat from steel products which had not been used yet efficiently. Despite the improved performances of thermoelectric materials, more effort on a TEG unit is needed to maximize TEG system performance. In optimizing the TEG unit performance, the influence of the surface shape of the TEG units has been investigated. Two types of the heat collection plate have tested. The first one was with a fin structure and the second one was with plain plate structure. Based on the results of the simulation and the experiments, it can be concluded that a better performance will be achieved by the TEG unit which has plain type heat collection plate because of larger total heat flux input to TEG modules of the TEG unit with plain type heat collection plate structure compared to the fin type heat collection structure.

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“…Many multinational automobile companies like Renault, Honda, Ford etc. have developed their systems to recover exhaust heat using TEG [18]- [20]. Baatar and Kim developed a TEG waste heat recovery system for car to replace the conventional radiator [21].…”

Section: Automobile System's Cooling and Air Conditioningmentioning

confidence: 99%

Applications of Thermoelectric Energy: A Review

Patidar¹

2018

IJRASET

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Concept of thermoelectric (TE) energy makes it unique because of reversible energy conversion, e.g. from thermal to electrical and vice-versa. Seebeck and Peltier effects are base of all TE energy applications. Thermoelectricity has wide range of applications due to reversible energy conversion. In recent years, with technology development and global warming issues TE devices come into use in various applications because of its eco-friendly feature and distinct advantages. The thermoelectric energy has a vast range of applications in various fields like; electricity generation, refrigeration, air conditioning, particular heating/cooling, biomedical devices etc. due to its simple construction and mechanism, portability, require DC supply to run etc. This research paper thoroughly reviews the recent development and research work carried out by many researchers on thermoelectric energy applications in areas such as; power generation, refrigeration, electronic device cooling, automobile air conditioning & systems cooling, air cooling, medical field applications etc. Keywords: Thermoelectric, thermoelectric energy, application of thermoelectric, thermoelectric cooling, thermoelectric refrigerator, thermoelectric generator I. INTRODUCTIONWorld's energy demand is continuously increasing day by day and convention source of energy have limited stock. Also, conventional sources of energy have many issues of carbon emission; it is main cause of global warming. The thermoelectric (TE) system is quite suitable due to its renewable energy feature (means no carbon emission) and eco-friendly behaviour. Emissions of greenhouse gases are increasing globally because of continuous increase in demand of electricity, heating and cooling, refrigeration and air conditioning etc. Only green technologies such as wind power, solar power and other renewable energy sources can control the emission of greenhouse gases and play important role for sustainable development. Many countries are trying to control emission of carbon by forming new rules for industries. In recent few years, thermoelectric equipments have come out with potential as alternative eco-friendly applications. Applications of thermoelectric energy extended in various areas such cooling or heating, refrigeration, electricity generation, ventilation, air conditioning etc. due to its eco-friendly features and distinct advantages. Thermoelectric energy has potential to convert thermal energy into electrical energy and vice-versa. Due to solid state (no fluid/rotating part) mechanism of thermoelectric devices, it has variety of small applications for cooling of central processing units (CPU) and produce electricity in automobiles from waste heat [1].

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Thermoelectric Exhaust Heat Recovery for Hybrid Vehicles

Cited by 132 publications

References 11 publications

Experimental testing of a car exhaust heat recovery system utilising TEGs and heat pipes

Experimental testing of a car exhaust heat recovery system utilising TEGs and heat pipes

Influence of Heat Collection Plate Structure on Thermoelectric Generation Unit Performance for Radiant Waste Heat Recovery in Continuous Casting Process

Applications of Thermoelectric Energy: A Review

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