Review on the recent progress of thermochemical materials and processes for solar thermal energy storage and industrial waste heat recovery

Energy storage is one of the most important energetic strategies of the mankind, along with other energy challenges, such as development of energy resources, energy conversion, and energy saving. The problem of energy storage is especially actual in respect to renewable sources of energy, such as sun, wind, tides, which have seasonal or diurnal variations and which therefore are not available at any moment of time. This article overviews the main principles of storage of solar energy for its subsequent long-term consumption. The methods are separated into two groups: the thermal and photonic methods of energy conversion. The comparison of efficiency of energy production and storage through natural and artificial photosynthesis, sensible and latent heat, chemisorptions and physisorption, chemical and electrochemical reactions is given.energy storage, photosynthesis, sensible heat, latent heat, chemical energy, rechargeable batteries

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“…A,Schematic illustration of the principle of chemical energy storage and, B, different groups of materials used for chemical energy storage …”

Section: Artificial Energy Storage: Thermal Conversion Methodsmentioning

confidence: 99%

“…Energy density stored by different groups of the materials vs charging temperature. Adapted and updated from Reference …”

Section: Efficiency Of Energy Storagementioning

confidence: 99%

Principles of solar energy storage

2019

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“…Nowadays, research in THSS materials is focused on the development of a composite heat storage media to address the requirements of high-energy storage density and fast heat and mass transfer [21][22][23]. Salt hydrates illustrate hydrothermal stability problems such as deliquescence and leakage from the reactor bed.…”

Section: Introductionmentioning

confidence: 99%

“…Additionally, the hydrophilic characteristics of zeolite cause the salts hydrates to dissolve in excess pore water and prevent its complete hydration in the discharging cycle. This is a major drawback for long-term heat storage [22,29]. In addition, preventing salt hydrate from deliquescence during the hydration cycles is another problem to address [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Novel Composite Materials for Thermochemical Heat Storage Systems

et al. 2020

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Increasing energy prices make space heating more expensive every year in The Organisation for Economic Co-operation and Development (OECD) member countries. Thermochemical heat storage systems (THSS) can be used to reduce residential energy consumption for space heating and to control humidity. Utilizing compressed thermochemical pellets as heat storage materials is a way to increase volumetric energy storage capacity and to improve the performance of the THSS. In this work, expanded natural graphite (ENG), activated carbon (AC), strontium bromide, and magnesium sulphate were mixed in different mass ratios and compressed under applied pressures in a range of 0.77 to 5.2 kN⋅mm−2 to form composite pellets with a diameter of 12 and 25 mm, respectively, and a thickness from 1.5 to 25 mm. These pellets were characterized using thermogravimetric analysis and differential scanning calorimetry. Cyclic tests of hydration at 20 °C and dehydration at 85 °C were conducted to investigate changes in the surface morphology and the heat and mass transfer characteristics of the composite pellets. The permeability and thermal conductivity of the composite pellets were also measured. It was found that the structural stability of the pellets was enhanced by increasing the compression pressure. Utilizing AC and ENG in the composite mixture enhanced the porosity, thermal conductivity, and the permeability of the pellets.

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“…To be able to alleviate these disadvantages a lot of effort has been put into researching different materials, conducting numerical studies and work on reactor designs. For summaries on this we refer to [50,95].…”

Section: Chemical Thermal Storagementioning

confidence: 99%

Developing a Method for the Operational Control of an Ecovat System

Goeijen¹

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Review on the recent progress of thermochemical materials and processes for solar thermal energy storage and industrial waste heat recovery

Cited by 92 publications

References 102 publications

Principles of solar energy storage

Principles of solar energy storage

Investigation of Novel Composite Materials for Thermochemical Heat Storage Systems

Developing a Method for the Operational Control of an Ecovat System

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