Numerical modeling and simulation of an integrated TEG/PCM system for the enhancement of PV power output

D. Du; J. Darkwa; G. Kokogiannakis

doi:10.2514/6.2014-3970

Numerical modeling and simulation of an integrated TEG/PCM system for the enhancement of PV power output

D. Du^*
, J. Darkwa
, G. Kokogiannakis

^*Corresponding author for this work

Department of Architecture and Built Environment

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

6 Citations (Scopus)

Abstract

A high Photovoltaic (PV) cell temperature has an adverse effect on the conversion efficiency. A thermoelectric generator (TEG) can convert waste heat into electricity whereas phase change materials (PCMs) are able to utilise latent heat to store a large amount of energy at a relative stable temperature. An integrated TEG/PCM system for the enhancement of PV power output is thus proposed and evaluated. Results show that PCM layer during the phase change period shows a clear process to curb the increase of the PV temperature, but the PV temperature at thermal equilibrium is hardly lowered. Given a high surface resistance in natural convection, thicknesses of PCM layer and conductivities of PCM show limited effects on the system temperature profiling. TEG output is found to be negligible but the integrated system improves PV efficiency from 10.35% to 11% averaged in 1 hour.

Original language	English
Title of host publication	12th International Energy Conversion Engineering Conference, IECEC 2014
Publisher	American Institute of Aeronautics and Astronautics Inc.
ISBN (Electronic)	9781624103049
DOIs	https://doi.org/10.2514/6.2014-3970
Publication status	Published - 2014

Publication series

Name	12th International Energy Conversion Engineering Conference, IECEC 2014

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

ASJC Scopus subject areas

Energy Engineering and Power Technology
Renewable Energy, Sustainability and the Environment

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10.2514/6.2014-3970

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Du, D., Darkwa, J., & Kokogiannakis, G. (2014). Numerical modeling and simulation of an integrated TEG/PCM system for the enhancement of PV power output. In 12th International Energy Conversion Engineering Conference, IECEC 2014 (12th International Energy Conversion Engineering Conference, IECEC 2014). American Institute of Aeronautics and Astronautics Inc.. https://doi.org/10.2514/6.2014-3970

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title = "Numerical modeling and simulation of an integrated TEG/PCM system for the enhancement of PV power output",

abstract = "A high Photovoltaic (PV) cell temperature has an adverse effect on the conversion efficiency. A thermoelectric generator (TEG) can convert waste heat into electricity whereas phase change materials (PCMs) are able to utilise latent heat to store a large amount of energy at a relative stable temperature. An integrated TEG/PCM system for the enhancement of PV power output is thus proposed and evaluated. Results show that PCM layer during the phase change period shows a clear process to curb the increase of the PV temperature, but the PV temperature at thermal equilibrium is hardly lowered. Given a high surface resistance in natural convection, thicknesses of PCM layer and conductivities of PCM show limited effects on the system temperature profiling. TEG output is found to be negligible but the integrated system improves PV efficiency from 10.35\% to 11\% averaged in 1 hour.",

author = "D. Du and J. Darkwa and G. Kokogiannakis",

note = "Publisher Copyright: {\textcopyright} 2014 by Dengfeng DU, Jo Darkwa, Georgios Kokogiannakis.",

year = "2014",

doi = "10.2514/6.2014-3970",

language = "English",

series = "12th International Energy Conversion Engineering Conference, IECEC 2014",

publisher = "American Institute of Aeronautics and Astronautics Inc.",

booktitle = "12th International Energy Conversion Engineering Conference, IECEC 2014",

}

Du, D, Darkwa, J & Kokogiannakis, G 2014, Numerical modeling and simulation of an integrated TEG/PCM system for the enhancement of PV power output. in 12th International Energy Conversion Engineering Conference, IECEC 2014. 12th International Energy Conversion Engineering Conference, IECEC 2014, American Institute of Aeronautics and Astronautics Inc. https://doi.org/10.2514/6.2014-3970

Numerical modeling and simulation of an integrated TEG/PCM system for the enhancement of PV power output. / Du, D.; Darkwa, J.; Kokogiannakis, G.
12th International Energy Conversion Engineering Conference, IECEC 2014. American Institute of Aeronautics and Astronautics Inc., 2014. (12th International Energy Conversion Engineering Conference, IECEC 2014).

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Numerical modeling and simulation of an integrated TEG/PCM system for the enhancement of PV power output

AU - Du, D.

AU - Darkwa, J.

AU - Kokogiannakis, G.

PY - 2014

Y1 - 2014

N2 - A high Photovoltaic (PV) cell temperature has an adverse effect on the conversion efficiency. A thermoelectric generator (TEG) can convert waste heat into electricity whereas phase change materials (PCMs) are able to utilise latent heat to store a large amount of energy at a relative stable temperature. An integrated TEG/PCM system for the enhancement of PV power output is thus proposed and evaluated. Results show that PCM layer during the phase change period shows a clear process to curb the increase of the PV temperature, but the PV temperature at thermal equilibrium is hardly lowered. Given a high surface resistance in natural convection, thicknesses of PCM layer and conductivities of PCM show limited effects on the system temperature profiling. TEG output is found to be negligible but the integrated system improves PV efficiency from 10.35% to 11% averaged in 1 hour.

AB - A high Photovoltaic (PV) cell temperature has an adverse effect on the conversion efficiency. A thermoelectric generator (TEG) can convert waste heat into electricity whereas phase change materials (PCMs) are able to utilise latent heat to store a large amount of energy at a relative stable temperature. An integrated TEG/PCM system for the enhancement of PV power output is thus proposed and evaluated. Results show that PCM layer during the phase change period shows a clear process to curb the increase of the PV temperature, but the PV temperature at thermal equilibrium is hardly lowered. Given a high surface resistance in natural convection, thicknesses of PCM layer and conductivities of PCM show limited effects on the system temperature profiling. TEG output is found to be negligible but the integrated system improves PV efficiency from 10.35% to 11% averaged in 1 hour.

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DO - 10.2514/6.2014-3970

M3 - Conference contribution

AN - SCOPUS:84912570038

T3 - 12th International Energy Conversion Engineering Conference, IECEC 2014

BT - 12th International Energy Conversion Engineering Conference, IECEC 2014

PB - American Institute of Aeronautics and Astronautics Inc.

ER -

Du D, Darkwa J, Kokogiannakis G. Numerical modeling and simulation of an integrated TEG/PCM system for the enhancement of PV power output. In 12th International Energy Conversion Engineering Conference, IECEC 2014. American Institute of Aeronautics and Astronautics Inc. 2014. (12th International Energy Conversion Engineering Conference, IECEC 2014). doi: 10.2514/6.2014-3970

Numerical modeling and simulation of an integrated TEG/PCM system for the enhancement of PV power output

Abstract

Publication series

UN SDGs

ASJC Scopus subject areas

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