Utilizing thermoelectric generator as cavity temperature controller for temperature management in dish-Stirling engine

Ali Mohammadnia, Behrooz M. Ziapour, Farzad Sedaghati, Lasse Rosendahl, Alireza Rezaniakolaei

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Harvesting energy from sustainable and accessible resources such as solar energy is one of the most interesting research areas in the last decades. This study proposes a novel application of thermoelectric generator (TEG) energy harvester in a dish-Stirling system to protect the system from thermal overloading and also to improve the overall energy conversion performance. Using the TEG as an energy harvester in the cavity makes it possible to have a larger solar concentration over the system. In the middle of the day, temperature of the cavity increases due to increasing of the intensity of the solar radiation. The cavity temperature controller protects the Stirling engine from increasing its hot-side temperature over the critical temperature defined for the system. Moreover, Control of the cavity temperature by the TEG leads to generate more electrical power by the Stirling engine in the beginning and ending hours of the day. Performance of the system is investigated by a coupled analytical model developed in this study. The results illustrate the proposed dish-Stirling engine generates 14.1 kW at solar noon. Furthermore, the proposed cavity temperature control strategy improves overall performance of the system 20–30% at the beginning and ending hours of a day.
Original languageEnglish
Article number114568
JournalApplied Thermal Engineering
Volume165
Number of pages9
ISSN1359-4311
DOIs
Publication statusPublished - Jan 2020

Fingerprint

Stirling engines
Controllers
Harvesters
Temperature
Energy harvesting
Solar radiation
Energy conversion
Temperature control
Solar energy
Analytical models

Keywords

  • Solar energy
  • Stirling engine
  • Cavity temperature control
  • Energy harvesting
  • Performance improvement

Cite this

@article{7fd66f763d9b4f9ca71995a757ea9824,
title = "Utilizing thermoelectric generator as cavity temperature controller for temperature management in dish-Stirling engine",
abstract = "Harvesting energy from sustainable and accessible resources such as solar energy is one of the most interesting research areas in the last decades. This study proposes a novel application of thermoelectric generator (TEG) energy harvester in a dish-Stirling system to protect the system from thermal overloading and also to improve the overall energy conversion performance. Using the TEG as an energy harvester in the cavity makes it possible to have a larger solar concentration over the system. In the middle of the day, temperature of the cavity increases due to increasing of the intensity of the solar radiation. The cavity temperature controller protects the Stirling engine from increasing its hot-side temperature over the critical temperature defined for the system. Moreover, Control of the cavity temperature by the TEG leads to generate more electrical power by the Stirling engine in the beginning and ending hours of the day. Performance of the system is investigated by a coupled analytical model developed in this study. The results illustrate the proposed dish-Stirling engine generates 14.1 kW at solar noon. Furthermore, the proposed cavity temperature control strategy improves overall performance of the system 20–30{\%} at the beginning and ending hours of a day.",
keywords = "Solar energy, Stirling engine, Cavity temperature control, Energy harvesting, Performance improvement",
author = "Ali Mohammadnia and {M. Ziapour}, Behrooz and Farzad Sedaghati and Lasse Rosendahl and Alireza Rezaniakolaei",
year = "2020",
month = "1",
doi = "10.1016/j.applthermaleng.2019.114568",
language = "English",
volume = "165",
journal = "Applied Thermal Engineering",
issn = "1359-4311",
publisher = "Pergamon Press",

}

Utilizing thermoelectric generator as cavity temperature controller for temperature management in dish-Stirling engine. / Mohammadnia, Ali ; M. Ziapour, Behrooz; Sedaghati, Farzad; Rosendahl, Lasse; Rezaniakolaei, Alireza.

In: Applied Thermal Engineering, Vol. 165, 114568, 01.2020.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Utilizing thermoelectric generator as cavity temperature controller for temperature management in dish-Stirling engine

AU - Mohammadnia, Ali

AU - M. Ziapour, Behrooz

AU - Sedaghati, Farzad

AU - Rosendahl, Lasse

AU - Rezaniakolaei, Alireza

PY - 2020/1

Y1 - 2020/1

N2 - Harvesting energy from sustainable and accessible resources such as solar energy is one of the most interesting research areas in the last decades. This study proposes a novel application of thermoelectric generator (TEG) energy harvester in a dish-Stirling system to protect the system from thermal overloading and also to improve the overall energy conversion performance. Using the TEG as an energy harvester in the cavity makes it possible to have a larger solar concentration over the system. In the middle of the day, temperature of the cavity increases due to increasing of the intensity of the solar radiation. The cavity temperature controller protects the Stirling engine from increasing its hot-side temperature over the critical temperature defined for the system. Moreover, Control of the cavity temperature by the TEG leads to generate more electrical power by the Stirling engine in the beginning and ending hours of the day. Performance of the system is investigated by a coupled analytical model developed in this study. The results illustrate the proposed dish-Stirling engine generates 14.1 kW at solar noon. Furthermore, the proposed cavity temperature control strategy improves overall performance of the system 20–30% at the beginning and ending hours of a day.

AB - Harvesting energy from sustainable and accessible resources such as solar energy is one of the most interesting research areas in the last decades. This study proposes a novel application of thermoelectric generator (TEG) energy harvester in a dish-Stirling system to protect the system from thermal overloading and also to improve the overall energy conversion performance. Using the TEG as an energy harvester in the cavity makes it possible to have a larger solar concentration over the system. In the middle of the day, temperature of the cavity increases due to increasing of the intensity of the solar radiation. The cavity temperature controller protects the Stirling engine from increasing its hot-side temperature over the critical temperature defined for the system. Moreover, Control of the cavity temperature by the TEG leads to generate more electrical power by the Stirling engine in the beginning and ending hours of the day. Performance of the system is investigated by a coupled analytical model developed in this study. The results illustrate the proposed dish-Stirling engine generates 14.1 kW at solar noon. Furthermore, the proposed cavity temperature control strategy improves overall performance of the system 20–30% at the beginning and ending hours of a day.

KW - Solar energy

KW - Stirling engine

KW - Cavity temperature control

KW - Energy harvesting

KW - Performance improvement

U2 - 10.1016/j.applthermaleng.2019.114568

DO - 10.1016/j.applthermaleng.2019.114568

M3 - Journal article

VL - 165

JO - Applied Thermal Engineering

JF - Applied Thermal Engineering

SN - 1359-4311

M1 - 114568

ER -