Imperial College London


Faculty of EngineeringDepartment of Chemical Engineering

Professor of Clean Energy Technologies



+44 (0)20 7594 1601c.markides Website




404ACE ExtensionSouth Kensington Campus






BibTex format

author = {Acha, Izquierdo S and lambert, R and Shah, N and Markides, C and delangle, A},
doi = {10.1016/},
journal = {Energy},
pages = {209--223},
title = {Modelling and optimising the marginal expansion of an existing district heating network},
url = {},
volume = {140},
year = {2017}

RIS format (EndNote, RefMan)

AB - Although district heating networks have a key role to play in tackling greenhouse gas emissions associated with urban energy systems, little work has been carried out on district heating networks expansion in the literature. The present article develops a methodology to find the best district heating network expansion strategy under a set of given constraints. Using a mixed-integer linear programming approach, the model developed optimises the future energy centre operation by selecting the best mix of technologies to achieve a given purpose (e.g. cost savings maximisation or greenhouse gas emissions minimisation). Spatial expansion features are also considered in the methodology.Applied to a case study, the model demonstrates that depending on the optimisation performed, some building connection strategies have to be prioritised. Outputs also prove that district heating schemes' financial viability may be affected by the connection scenario chosen, highlighting the necessity of planning strategies for district heating networks. The proposed approach is highly flexible as it can be adapted to other district heating network schemes and modified to integrate more aspects and constraints.
AU - Acha,Izquierdo S
AU - lambert,R
AU - Shah,N
AU - Markides,C
AU - delangle,A
DO - 10.1016/
EP - 223
PY - 2017///
SN - 0360-5442
SP - 209
TI - Modelling and optimising the marginal expansion of an existing district heating network
T2 - Energy
UR -
UR -
VL - 140
ER -