Publication detail

Demand modelling in district heating systems within the conceptual design of a waste-to-energy plant

PUTNA, O. JANOŠŤÁK, F. ŠOMPLÁK, R. PAVLAS, M.

Original Title

Demand modelling in district heating systems within the conceptual design of a waste-to-energy plant

Type

journal article in Web of Science

Language

English

Original Abstract

The paper deals with the issue of fluctuations in heat demand and how they are dealt with when planning investments in the field of energy recovery of waste. The lifetime of Waste to Energy plants (WtEP) is typically 20–30 years. Their construction is also a time and investment-intensive business and requires a robust design with low sensitivity to future changes in key parameters. The paper analyses the effect of fluctuations in heat demand on the accuracy of techno-economic models and their outputs. The aim is to determine the sensitivity of optimisation models to the applied time step. The sensitivity of two different models is compared – a simple model of a WtEP cooperating with a gas boiler and a complex model of a WtEP integrated with a combined heat and power plant. Optimisation models, commonly used to design these facilities, perform calculations in certain time steps, typically on an annual or monthly basis. The simplification from hour to month time step may cause inaccuracies. The paper offers alternative solutions to modelling methods of WtEP, using so-called correction coefficients. They help to increase the accuracy of the models while maintaining acceptable calculation time.

Keywords

Waste-to-energy; Combined heat and power; Heat supply; Long term optimisation; Fluctuations

Authors

PUTNA, O.; JANOŠŤÁK, F.; ŠOMPLÁK, R.; PAVLAS, M.

Released

15. 11. 2018

ISBN

0360-5442

Periodical

Energy

Number

163

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1125

Pages to

1139

Pages count

15

URL

https://www.sciencedirect.com/science/article/pii/S0360544218315913

BibTex

@article{BUT149951,
  author="Ondřej {Putna} and František {Janošťák} and Radovan {Šomplák} and Martin {Pavlas}",
  title="Demand modelling in district heating systems within the conceptual design of a waste-to-energy plant",
  journal="Energy",
  year="2018",
  number="163",
  pages="1125--1139",
  doi="10.1016/j.energy.2018.08.059",
  issn="0360-5442",
  url="https://www.sciencedirect.com/science/article/pii/S0360544218315913"
}