I’d like to know if someone has any open source software suggestions for modelling the integration a Thermal Energy Storage System (eg: Phase Change Materials (PCMs)) in a district heating or a building system which evaluates the heat usage, carbon emissions etc. It’s my master thesis work.
Thanking you in advance.
Hi @Ishwar4404
These two lists of modeling frameworks might be of use:
And some surveys:
Reinhart, Christoph F and Carlos Cerezo Davila (15 February 2016). “Urban building energy modeling — A review of a nascent field”. Building and Environment. 97: 196–202. ISSN 0360-1323. doi:10.1016/j.buildenv.2015.12.001. 
Westermann, Paul, Matthius Welzel, and Ralph Evins (4 December 2020). Linking climate with building energy performance through surrogate models. British Columbia, Canada: Energy in Cities group, Department of Civil Engineering, University of Victoria. Presentation.
And also:
And this work is historical (I will email copies):
Lindenberger, Dietmar, Thomas Bruckner, Helmuth-M Groscurth, and Reiner Kümmel (2000). “Optimization of solar district heating systems: seasonal storage, heat pumps, and cogeneration”. Energy. 25 (7): 591–608. doi:10.1016/S0360-5442(99)00082-1.
Lindenberger, Dietmar, Thomas Bruckner, Robbie Morrison, Helmuth-M Groscurth, and Reiner Kümmel (2004). “Modernization of local energy systems”. Energy. 29 (2): 245–256. ISSN 0360-5442. doi:10.1016/S0360-5442(03)00063-X.
That last paper covered so‑called transparent insulation, a novel passive solar technology that was never developed in practice (as far as I am aware). The other paper examined seasonal thermal storage. The underlying software is archived here.
HTH, R
Here is another possibly relevant publication:
Witte, Francesco and Ilja Tuschy (21 May 2020). “TESPy: thermal engineering systems in Python”. Journal of Open Source Software. 5 (49): 2178. ISSN 2475-9066. doi:10.21105/joss.02178.
readthedocs: TESPy 0.6.3 - dev documentation