Numerical analysis of a new thermal energy storage system using phase change materials for direct steam parabolic trough solar power plants

Kargar, Mohammad Reza; Baniasadi, Ehsan; Mosharaf-Dehkordi, Mehdi

doi:10.1016/j.solener.2018.06.024

Cited by 26 publications

(13 citation statements)

References 23 publications

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“…Conversion of night time dark chill using thermoelectric generators works equally well like solar cells 51 . Steam storage in solar thermal and biomass plants increases generation efficiency 52,53 . A comparative study of sensible heat storage and latent heat storage systems, in terms of temperature pinch point, shows that temperature and exergy efficiency in latent heat storage system is more than sensible heat storage system 54 …”

Section: Energy Storage Systemsmentioning

confidence: 99%

“…Longer TES period methods allows summer thermal energy storage to be used for space heating in winter 68 . Sensible heat of molten salt (MS) is also used for storing solar energy at a high temperature Molten Salt (MS) stores solar heat at higher temperatures in commercial solar thermal plants 52,53 . Thermal energy can again be converted into superheated steam to drive turbine during cloudy weathers or at night when there is no sun 69 .…”

Section: Energy Storage Systemsmentioning

confidence: 99%

“…51 Steam storage in solar thermal and biomass plants increases generation efficiency. 52,53 A comparative study of sensible heat storage and latent heat storage systems, in terms of temperature pinch point, shows that temperature and exergy efficiency in latent heat storage system is more than sensible heat storage system. 54 Hydroelectric dams, pumped hydro systems, compressed air energy storage, air liquefaction systems (70%), pumped water, rail cars, electric vehicles, and molten state metal (liquid meal) and flow batteries (90%) can be used as bulk grid scale energy storage systems.…”

Section: Energy Storage Systemsmentioning

confidence: 99%

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Role of energy storage systems in energy transition from fossil fuels to renewables

et al. 2020

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We present the role of heat and electricity storage systems on the rapid rise of renewable energy resources and the steady fall of fossil fuels. The upsurge in renewable resources and slump in fossil fuel consumptions is attributed to sustainable energy systems, energy transition, climate change, and clean energy initiatives. The fast growth of renewables brings new design and operational challenges to transition towards 100% renewable energy goal. Energy storage systems can help ride‐through energy transition from hydrocarbon fuels to renewable sources. Nuclear fusion and artificial photosynthesis are the ultimate Holy Grails for permanent clean energy solutions. Plants harvest light and store it in chemical energy to regulate the food supply chain that may be a guideline for an energy transition from fossil fuels to renewables. Heat and electricity storage devices can account for the periodic nature of solar and wind energy sources. Solar thermal systems for water and space heating are also a viable solution for subzero temperature areas. This study presents the transition of world's energy prospect from fossil fuels to renewables and new advances in energy storage systems.

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Section: Energy Storage Systemsmentioning

confidence: 99%

Section: Energy Storage Systemsmentioning

confidence: 99%

Section: Energy Storage Systemsmentioning

confidence: 99%

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Role of energy storage systems in energy transition from fossil fuels to renewables

et al. 2020

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“…Several numerical simulation studies on the use of PCM as the energy storage medium have been conducted (Michels and Pitz-Paal, 2007;Guo and Zhang, 2008;Tao et al, 2012Tao et al, , 2014Wang et al, 2012;Guo et al, 2013;Sciacovelli et al, 2015;Seddegh et al, 2015;Fornarelli et al, 2016;Kargar et al, 2018). provides a comprehensive review on the model description and numerical approach on previous studies that utilised a one-dimensional numerical model for spherical PCM capsules and those that used two-dimensional thermocline modelling in latent heat TES schemes.…”

Section: Thermal Energy Storagementioning

confidence: 99%

Thermal Energy Processes in Direct Steam Generation Solar Systems: Boiling, Condensation and Energy Storage – A Review

et al. 2019

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“…The selection of the suitable PCM can be challenging, as Gasia et al is demonstrating in [36] or Maldonaldo et al for a higher temperature range between 210 • C and 270 • C [37]. The influence of the inner heat transfer from the HTF to the tube can also be crucial, as presented in [38]. For low-HTF mass flows, a laminar flow establishes that the heat-transfer coefficient can be lower than on the PCM side of the tube.…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer in Latent High-Temperature Thermal Energy Storage Systems—Experimental Investigation

2019

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Thermal energy storage systems with phase-change materials promise a high energy density for applications where heat is to be stored in a narrow temperature range. The advantage of higher capacities comes along with some challenges in terms of behavior prediction. The heat transfer into such a storage is highly transient and depends on the phase state, which is either liquid or solid in the present investigation. The aim is to quantify the heat transfer into the storage and to compare two different fin geometries. The novel geometry is supposed to accelerate the melting process. For this purpose, a single tube test rig was designed, built, and equipped with aluminum fins. The phase-change material temperature as well as the heat-transfer fluid temperature at the inlet and outlet were measured for charging and discharging cycles. Sodium nitrate is used as phase-change material, and the storage is operated ±30 ∘ C around the melting point of sodium nitrate, which is 306 ∘ C . An enthalpy function for sodium nitrate is proposed and the methodology for determining the apparent heat-transfer rate is provided. The phase-change material temperature trends are shown and analyzed; different melting in radial and axial directions and in the individual geometry sections occurs. With the enthalpy function for sodium nitrate, the energy balance is determined over the melting range. Values for the apparent heat-transfer coefficient are derived, which allow capacity and power estimations for industrial-scale latent heat thermal energy systems.

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Numerical analysis of a new thermal energy storage system using phase change materials for direct steam parabolic trough solar power plants

Cited by 26 publications

References 23 publications

Role of energy storage systems in energy transition from fossil fuels to renewables

Role of energy storage systems in energy transition from fossil fuels to renewables

Thermal Energy Processes in Direct Steam Generation Solar Systems: Boiling, Condensation and Energy Storage – A Review

Heat Transfer in Latent High-Temperature Thermal Energy Storage Systems—Experimental Investigation

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