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Use Cases with Economics and Simulation for Thermo-Chemical District Networks

Lookup NU author(s): Alessandro Giampieri, Dr Andrew SmallboneORCiD, Professor Tony Roskilly

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Abstract

© 2018 by the authors. Thermo-chemical networks using absorption and desorption to capture and valorise the potential of very low-grade residual heat (20 °C to 60 °C) to offer a reduction of end user costs and increased primary energy efficiency. The paper demonstrates the technical and economic potential of thermo-chemical networks by defining use cases and their related level of energy efficiency and technological feasibility. Furthermore, specific economic scenarios, including estimations on investment and operation costs, demonstrate the economic benefit of the technology. Simple payback periods between about 0.5 and 7.5 years indicate a good economic feasibility with end user costs below 4 €ct/kWh-equivalent and refunds of 0.5 to 1 €ct/kWh for the required residual heat. Due to the low-temperature characteristics of the relevant systems and services, detailed simulations are required to approve the functioning and viability of the new technology. For this purpose, the paper demonstrates the simulation outline using the example of space heating based on a low-temperature air heating system partially driven with thermo-chemical fuel.

Publication metadata

Author(s): Geyer P, Delwati M, Buchholz M, Giampieri A, Smallbone A, Roskilly AP, Buchholz R, Provost M

Publication type: Article

Publication status: Published

Journal: Sustainability

Year: 2018

Volume: 10

Issue: 3

Online publication date: 26/02/2018

Acceptance date: 13/02/2018

Date deposited: 12/03/2018

ISSN (print): elec-tronic

Publisher: MDPI AG

URL: https://doi.org/10.3390/su10030599

DOI: 10.3390/su10030599

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