Special Issue "Materials for Thermochemical Energy Storage"

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Energy Science and Technology".

Deadline for manuscript submissions: closed (20 April 2022) | Viewed by 2656

Special Issue Editor

Dr. Vincenza Brancato
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Guest Editor
National Research Council, Institute of Advanced Technologies for Energy "Nicola Giordano", Via Santa Lucia sopra Contesse, 5 - 98126 Messina, Italy
Interests: materials for energy; thermal energy storage; waste and solar heat storage; composite materials for energy storage; development of renewable heating and cooling solutions
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Special Issue Information

Dear Colleagues,

Nowadays, the reduction of greenhouse gas emissions is a priority in the energy research field and the substitution of fossil fuels with renewable energy sources seems to be crucial. Nevertheless, the mismatching between the solar energy supply and the demand must be overcome using energy storage systems. The storage technology can be based on sensible, latent or thermochemical heat. Thermochemical energy storage (TCS) uses the reaction enthalpy of reversible chemical reactions and this technology offers higher advantages compared to the others. It provides much higher storage capacities per mass or volume compared to sensible or latent heat storage and can store the heat for infinite time without insulation, also permitting heat transport. In such a scenario, studies on thermochemical storage materials are the priority. The optimized material permits increasing the volumetric energy storage capacity and improving the performance of the storage system. The aim of this Special Issue is to collect the best papers on the development, improvement and enhancement of materials for thermochemical storage.

General greeting message:

We are pleased to invite researchers in the fields of thermochemical storage systems to submit their research and review articles on the latest research advances in the sector and to contribute to this Special Issue. The aim of this Special Issue is to collect the best papers on the development and enhancement of materials for thermochemical storage.

Dr. Vincenza Brancato

Keywords

  • thermochemical storage
  • materials for thermochemical storage
  • heat storage
  • adsorption
  • absorption

Published Papers (2 papers)

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Research

Article
Maximum Power Extraction from a Standalone Photo Voltaic System via Neuro-Adaptive Arbitrary Order Sliding Mode Control Strategy with High Gain Differentiation
Appl. Sci. 2022, 12(6), 2773; https://doi.org/10.3390/app12062773 - 08 Mar 2022
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Abstract
In this work, a photovoltaic (PV) system integrated with a non-inverting DC-DC buck-boost converter to extract maximum power under varying environmental conditions such as irradiance and temperature is considered. In order to extract maximum power (via maximum power transfer theorem), a robust nonlinear [...] Read more.
In this work, a photovoltaic (PV) system integrated with a non-inverting DC-DC buck-boost converter to extract maximum power under varying environmental conditions such as irradiance and temperature is considered. In order to extract maximum power (via maximum power transfer theorem), a robust nonlinear arbitrary order sliding mode-based control is designed for tracking the desired reference, which is generated via feed forward neural networks (FFNN). The proposed control law utilizes some states of the system, which are estimated via the use of a high gain differentiator and a famous flatness property of nonlinear systems. This synthetic control strategy is named neuro-adaptive arbitrary order sliding mode control (NAAOSMC). The overall closed-loop stability is discussed in detail and simulations are carried out in Simulink environment of MATLAB to endorse effectiveness of the developed synthetic control strategy. Finally, comparison of the developed controller with the backstepping controller is done, which ensures the performance in terms of maximum power extraction, steady-state error and more robustness against sudden variations in atmospheric conditions. Full article
(This article belongs to the Special Issue Materials for Thermochemical Energy Storage)
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Article
Integrating Mobile Thermal Energy Storage (M-TES) in the City of Surrey’s District Energy Network: A Techno-Economic Analysis
Appl. Sci. 2021, 11(3), 1279; https://doi.org/10.3390/app11031279 - 30 Jan 2021
Viewed by 1572
Abstract
The City of Surrey in British Columbia, Canada has recently launched a district energy network (DEN) to supply residential and commercial buildings in the Surrey Centre area with hot water for space and domestic hot water heating. The network runs on natural gas [...] Read more.
The City of Surrey in British Columbia, Canada has recently launched a district energy network (DEN) to supply residential and commercial buildings in the Surrey Centre area with hot water for space and domestic hot water heating. The network runs on natural gas boilers and geothermal exchange. However, the City plans to transition to low-carbon energy sources and envisions the DEN as a key development in reaching its greenhouse gas emissions (GHG) reduction targets in the building sector. Harvesting and utilizing waste heat from industrial sites using a mobile thermal energy storage (M-TES) is one of the attractive alternative energy sources that Surrey is considering. In this study, a techno-economic analysis (TEA) was conducted to determine the energy storage density (ESD) of the proposed M-TES technology, costs, and the emission reduction potential of integrating waste heat into Surrey’s DEN. Three transportation methods were considered to determine the most cost-effective and low-carbon option(s) to transfer heat from industrial waste heat locations at various distances (15 km, 30 km, 45 km) to district energy networks, including: (i) a diesel truck; (ii) a renewable natural gas-powered (RNG) truck, and (iii) an electric truck. To evaluate the effectiveness of M-TES, the cost of emission reduction ($/tCO2e avoided) is compared with business as usual (BAU), which is using a natural gas boiler only. Another comparison was made with other low carbon energy sources that the city is considering, such as RNG/biomass boiler, sewer heat recovery, electric boiler, and solar thermal. The minimum system-level ESD required to makes M-TES competitive when compared to other low carbon energy sources was 0.4 MJ/kg. Full article
(This article belongs to the Special Issue Materials for Thermochemical Energy Storage)
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