PMID- 33467622
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210218
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 14
IP  - 2
DP  - 2021 Jan 15
TI  - Fibre-Reinforced Geopolymer Concretes for Sensible Heat Thermal Energy Storage: 
      Simulations and Environmental Impact.
LID - 10.3390/ma14020414 [doi]
LID - 414
AB  - Power plants based on solar energy are spreading to accomplish the incoming green 
      energy transition. Besides, affordable high-temperature sensible heat thermal 
      energy storage (SHTES) is required. In this work, the temperature distribution 
      and thermal performance of novel solid media for SHTES are investigated by finite 
      element method (FEM) modelling. A geopolymer, with/without fibre reinforcement, 
      is simulated during a transient charging/discharging cycle. A life cycle 
      assessment (LCA) analysis is also carried out to investigate the environmental 
      impact and sustainability of the proposed materials, analysing the embodied 
      energy, the transport, and the production process. A Multi-Criteria Decision 
      Making (MCDM) with the Analytical Hierarchy Process (AHP) approach, taking into 
      account thermal/environmental performance, is used to select the most suitable 
      material. The results show that the localized reinforcement with fibres increases 
      thermal storage performance, depending on the type of fibre, creating curvatures 
      in the temperature profile and accelerating the charge/discharge. High-strength, 
      high-conductivity carbon fibres performed well, and the simulation approach can 
      be applied to any fibre arrangement/material. On the contrary, the benefit of the 
      fibres is not straightforward according to the three different scenarios 
      developed for the LCA and MCDM analyses, due to the high impact of the fibre 
      production processes. More investigations are needed to balance and optimize the 
      coupling of the fibre material and the solid medium to obtain high thermal 
      performance and low impacts.
FAU - Frattini, Domenico
AU  - Frattini D
AD  - Graduate School of Energy and Environment, Seoul National University of Science 
      and Technology, Gongneung-ro 232, Nowon-gu, Seoul 01811, Korea.
FAU - Occhicone, Alessio
AU  - Occhicone A
AD  - Department of Engineering, University Parthenope of Naples, Centro Direzionale di 
      Napoli Is. C4, 80143 Napoli, Italy.
FAU - Ferone, Claudio
AU  - Ferone C
AUID- ORCID: 0000-0002-8660-3771
AD  - Department of Engineering, University Parthenope of Naples, Centro Direzionale di 
      Napoli Is. C4, 80143 Napoli, Italy.
FAU - Cioffi, Raffaele
AU  - Cioffi R
AD  - Department of Engineering, University Parthenope of Naples, Centro Direzionale di 
      Napoli Is. C4, 80143 Napoli, Italy.
LA  - eng
PT  - Journal Article
DEP - 20210115
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC7830492
OTO - NOTNLM
OT  - AHP
OT  - LCA
OT  - carbon fibres
OT  - conductivity
OT  - geopolymers
OT  - sustainability
OT  - thermal storage
COIS- The authors declare no conflict of interest.
EDAT- 2021/01/21 06:00
MHDA- 2021/01/21 06:01
PMCR- 2021/01/15
CRDT- 2021/01/20 01:09
PHST- 2020/11/13 00:00 [received]
PHST- 2021/01/10 00:00 [revised]
PHST- 2021/01/12 00:00 [accepted]
PHST- 2021/01/20 01:09 [entrez]
PHST- 2021/01/21 06:00 [pubmed]
PHST- 2021/01/21 06:01 [medline]
PHST- 2021/01/15 00:00 [pmc-release]
AID - ma14020414 [pii]
AID - materials-14-00414 [pii]
AID - 10.3390/ma14020414 [doi]
PST - epublish
SO  - Materials (Basel). 2021 Jan 15;14(2):414. doi: 10.3390/ma14020414.