THERMAL SCIENCE

International Scientific Journal

Heber Cláudius Nunes Silva

,

Eric Monroe Hornsby

,

Filipi Maciel Melo

,

Fabio Santana Magnani

,

Monica Carvalho

,

Alvaro Antonio Villa Ochoa

COMBINED FINANCIAL AND ENVIRONMENTAL OPTIMIZATION OF A TRIGENERATION SYSTEM

ABSTRACT
This paper firstly studies the influence of variations in fuel tariffs and GHG emissions of the grid electricity on the financial and environmental metrics, demonstrating divergences when considered alone. Secondly, a combined economic and environmental objective function is proposed, yielding a good compromise between both concerns. Real data are available from a Brazilian Northeast building where electricity, heat (hot water), and cooling are important for comfort and well-being. When addressing the bicriteria optimization, consideration of 20% of one metric enormously improved the overall result, with only slightly worsening the other metric. This is possible because the optimization scheme can choose from a rich pool of physical and operational scenarios.
KEYWORDS
combined cooling heat and power, greenhouse gases, economics, sustainable production, net present value
PAPER SUBMITTED: 2022-08-04
PAPER REVISED: 2022-09-22
PAPER ACCEPTED: 2022-09-30
PUBLISHED ONLINE: 2022-11-12
DOI REFERENCE: https://doi.org/10.2298/TSCI220804167S
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2023, VOLUME 27, ISSUE Issue 1, PAGES [321 - 334]
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Combined financial and environmental optimization of a trigeneration system

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence