A study on the prospect of engine exhaust gas energy recovery

Fu, Jianqin; Liu, Jingping; Yang, Yanping; Yang, Hanqian

doi:10.1109/iceice.2011.5777049

Cited by 9 publications

(1 citation statement)

References 12 publications

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“…The exhaust gas monitoring system is a comprehensive system made of the gas sensors, data logger, data transceiver, and power system. In order to avoid issues related to replacing batteries powering the sensors and the transceiver, several ways have been reported to recover energy from the engine [6][7][8][9][10][11][12][13][14][15][16]. The scope would be to design a complete IoT system for sensing, logging and transmitting data from the exhaust gas [17] and ideally, the system should be self-powered using the energy available in the environment in which it operates.…”

Section: Introductionmentioning

confidence: 99%

Available Energy in Cars’ Exhaust System for IoT Remote Exhaust Gas Sensor and Piezoelectric Harvesting

et al. 2020

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The exhaust system of the light-duty diesel engine has been evaluated as a potential environment for a mechanical energy recovery system for powering an IoT (Internet of Things) remote sensor. Temperature, pressure, gas speed, mass flow rate have been measured in order to characterize the exhaust gas. At any engine point explored, thermal energy is by far the most dominant portion of the exhaust energy, followed by the pressure energy and lastly kinetic energy is the smallest fraction of the exhaust energy. A piezoelectric flexible device has been tested as a possible candidate as an energy harvester converting the kinetic energy of the exhaust gas flow, with a promising amount of electrical energy generated in the order of microjoules for an urban or extra-urban circuit.

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Section: Introductionmentioning

confidence: 99%

Available Energy in Cars’ Exhaust System for IoT Remote Exhaust Gas Sensor and Piezoelectric Harvesting

et al. 2020

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Estimation of harvestable energy from vehicle waste heat

Reddy

Venkatesan

Maniyar

2015

2015 International Conference on Renewable Energy Research and Applications (ICRERA)

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Modeling and Simulation of an Inverted Brayton Cycle as an Exhaust-Gas Heat-Recovery System

Chen

Copeland

Ceen

et al. 2017

Journal of Engineering for Gas Turbines and Power

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The exhaust gas from an internal combustion engine contains approximately 30% of the thermal energy of combustion. The exhaust-gas heat-recovery systems aim to reclaim a proportion of this energy in a bottoming thermodynamic cycle to raise the overall system thermal efficiency. The inverted Brayton cycle (IBC) considered as a potential exhaust-gas heat-recovery system is a little-studied approach, especially when applied to small automotive power-plants. Hence, a model of the inverted Brayton cycle using finite-time thermodynamics (FTT) is presented to study heat recovery applied to a highly downsizing automotive internal combustion engine. IBC system consists of a turbine, a heat exchanger (HE), and compressors in sequence. The use of IBC turbine is to fully expand the exhaust gas available from the upper cycle. The remaining heat in the exhaust after expansion is rejected by the downstream heat exchanger. Then, the cooled exhaust gases are compressed back up to the ambient pressure by one or more compressors. In this paper, the exhaust conditions available from the engine test bench data were introduced as the inlet conditions of the IBC thermodynamic model to quantify the power recovered by IBC, thereby revealing the benefits of IBC to this particular engine. It should be noted that the test bench data of the baseline engine were collected by the worldwide harmonized light vehicles test procedures (WLTP). WLTP define a global harmonized standard for determining the levels of pollutants and CO2 emissions, fuel consumption. The IBC thermodynamic model was simulated with the following variables: IBC inlet pressure, turbine pressure ratio, heat exchanger effectiveness, turbomachinery efficiencies, and the IBC compression stage. The aim of this paper is to analysis the performance of IBC system when it is applied to a light-duty automotive engine operating in a real-world driving cycle.

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A study on the prospect of engine exhaust gas energy recovery

Cited by 9 publications

References 12 publications

Available Energy in Cars’ Exhaust System for IoT Remote Exhaust Gas Sensor and Piezoelectric Harvesting

Available Energy in Cars’ Exhaust System for IoT Remote Exhaust Gas Sensor and Piezoelectric Harvesting

Estimation of harvestable energy from vehicle waste heat

Modeling and Simulation of an Inverted Brayton Cycle as an Exhaust-Gas Heat-Recovery System

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