Waste heat recovery potential from industrial bakery ovens using thermodynamic power cycles

Jahedul Islam Chowdhury, Faisal Asfand, Yukun Hu, Nazmiye Balta-Ozkan, Liz Varga, Kumar Patchigolla

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper investigates the potential for waste heat recovery from industrial bakery ovens and its conversion into electricity using thermodynamic power cycles. Three prominent cycles: supercritical CO2 Brayton cycle (s-CO2), trilateral cycle (TLC) and organic Rankine cycle (ORC) are selected and optimized for maximum net power to demonstrate the cycles’ performance under steady heat input conditions. This study is extended to perform sensitivity analysis of the cycles’ performance against a set of input variables. Results show that a higher thermal efficiency of 26.5% is achievable in the case of ORC cycle with n-pentane as a working fluid compared to s-CO2 and TLC with a cycle thermal efficiency of 22.1% and 18.8%, respectively. Results also show that the ORC, the most preferable cycle, can avoid around £23,204 of annual electricity cost if the cycle is integrated with an industrial oven that generates waste heat at a mass flow rate and temperature of 1 kg/s and 250 ºC, respectively.

Original languageEnglish
Title of host publicationECOS 2019
Subtitle of host publicationProceedings of the 32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
EditorsWojciech Stanek, Pawel Gladysz, Sebastian Werle, Wojciech Adamczyk
PublisherInstitute of Thermal Technology
Pages2435-2441
Number of pages7
Volume2019-June
ISBN (Print)9788361506515
Publication statusPublished - 1 Jun 2019
Externally publishedYes
Event32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems - Wroclaw, Poland
Duration: 23 Jun 201928 Jun 2019
Conference number: 32
http://www.s-conferences.eu/ecos2019 (Conference link)

Conference

Conference32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
Abbreviated titleECOS 2019
CountryPoland
CityWroclaw
Period23/06/1928/06/19
Internet address

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  • Cite this

    Chowdhury, J. I., Asfand, F., Hu, Y., Balta-Ozkan, N., Varga, L., & Patchigolla, K. (2019). Waste heat recovery potential from industrial bakery ovens using thermodynamic power cycles. In W. Stanek, P. Gladysz, S. Werle, & W. Adamczyk (Eds.), ECOS 2019: Proceedings of the 32nd International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (Vol. 2019-June, pp. 2435-2441). Institute of Thermal Technology.