An Optimization Model for Combining Seasonal Pit Thermal Energy Storage and Biomass Trigeneration Energy System

Dominik Franjo Dominkovic, Z. Bačelić Medić, B. Ćosić, N. Duić

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

Abstract

In this paper, an optimization model for incorporating seasonal heat energy storage andbiomass trigeneration power plant is presented. Currently in Croatia, overall efficiency ofbiomass CHP or CCHP has to be above 50% on an annual basis in order to be eligible fora feed-in tariff. Consequently, biomass power plants use the excess heat production fordrying biomass which is currently allowed. However, it is expected that it will not beallowed in the future due to inefficient use of heat. Thus, this paper provides a solution formanaging excess heat in biomass CHP and CCHP power plants, as well as a way to shavepeak energy demand. The objective of the optimization model is to maximize net presentvalue (NPV) using hybrid optimization method. It is a demand driven model, coveringreal heating and cooling energy need by end-use customers. Optimization model is easy toadopt in different regions and can be used for evaluating economic feasibility of theinvestment in trigeneration system that covers all heating and cooling energy demand.Two case-studies were done in order to show the impact of minimum allowed overallpower plant efficiency on overall economic indicators. Moreover, the financial data forthe possible shift from feed-in-tariffs to fixed and variable feed-in-premiums waspresented.
Original languageEnglish
Title of host publicationBook of Abstracts : 1st South East European Conference on Sustainable Development of Energy, Water and Environment Systems
Publication date2014
Pages153-153
Article numberSEE2014.0210
Publication statusPublished - 2014
Externally publishedYes
EventThe 1st South East European Conference on Sustainable Development of Energy, Water and Environment Systems - Ohrid, Macedonia, The Former Yugoslav Republic of
Duration: 29 Jun 20143 Jul 2014
Conference number: 1
http://www.ohrid2014.sdewes.org/index.php

Conference

ConferenceThe 1st South East European Conference on Sustainable Development of Energy, Water and Environment Systems
Number1
CountryMacedonia, The Former Yugoslav Republic of
CityOhrid
Period29/06/201403/07/2014
Internet address

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