Packed bed thermal energy storage model – Generalized approach and experimental validation

Opitz, Florian; Treffinger, Peter

doi:10.1016/j.applthermaleng.2014.07.057

Cited by 27 publications

(12 citation statements)

References 21 publications

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“…Opitz and Treffinger [76] developed a general heterogeneous model of heat transfer in packed beds. Lumped element formulation is implemented.…”

Section: Numerical Modelsmentioning

confidence: 99%

Experimental and Numerical Studies on Phase Change Materials

Wang¹,

Zhu²

2018

Phase Change Materials and Their Applications

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Phase change materials (PCMs) are attracting significant attentions in research and application, categorized into mainly three types, that is, organic (O), inorganic (IO) and eutectic (E). This section introduces the experimental and numerical investigations conducted in recent decades, mainly focused on the properties enhancement of PCMs and the performance improvement of its application in latent heat storage (LHS) units, as well as the evaluation and optimization of LHS units. It was concluded that lots of contribution have been made to PCMs and LHS units analysis. However, there is still some weakness in research, such as the lackness of detailed and systematic research on properties, the nonuniform standard on testing method as well as the contradictory conclusions. The most evaluation of LHS units is based on energy, instead of exergy, entropy and entransy. There is another issue that most of the research is based on numerical analysis, while less experimental research is conducted, especially in the case of LHS unit.

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“…Opitz and Treffinger [76] developed a general heterogeneous model of heat transfer in packed beds. Lumped element formulation is implemented.…”

Section: Numerical Modelsmentioning

confidence: 99%

Experimental and Numerical Studies on Phase Change Materials

Wang¹,

Zhu²

2018

Phase Change Materials and Their Applications

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“…Several studies have been reported experimentally and numerically on air‐packed bed thermal storage systems …”

Section: Introductionmentioning

confidence: 99%

“…Several studies have been reported experimentally and numerically on air-packed bed thermal storage systems. [17][18][19][20] Lugolole et al 21 experimentally investigated three sensible storage systems having the same geometrical configurations. Two rock bed storage systems having a particle size of 10.5 and 31.9 mm, respectively, were used as a packing material and sunflower oil as heat transfer fluid (HTF).…”

Section: Introductionmentioning

confidence: 99%

Thermal performance of sensible and latent heat thermal energy storage systems

Suresh

Saini

2020

Int J Energy Res

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Summary The thermal energy storage is an essential subsystem for solar thermal energy systems. Few experimental studies are available to compare the performance of sensible and latent thermal energy storage systems for the same storage configurations. The comparison can provide guidance in selecting the storage system for particular solar thermal applications. The present work focuses on the experimental investigation of sensible and latent thermal storage systems with different mass flow rates. Concrete spheres and paraffin‐encapsulated metal capsules having a uniform diameter of 38 mm were taken as the packing elements and air as a heat transfer fluid for both the storage systems. The performance characteristics of both the storage systems have been evaluated in terms of charging time, instantaneous/cumulative energy absorption and energy storage under different flow rate conditions. Thermal mass, conductivity and flow rate has a substantial impact on temperature difference in the storage system. The charging time and energy storage capacity of the sensible thermal storage system was found to be lesser than the latent thermal storage system for all the flow rates. Based on the study, it is recommended that the latent thermal storage system is preferable for higher energy storage capacity, while for better charging and medium storage capacities sensible storage may be a good option.

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“…Its application is generally applied in many purposes in industry and also used in many purposes. According to F.OPITZ et al 2014 [7] packed bed saves a lot of thermal energy storage. Heat exchanger is in also used as different technical application.…”

Section: Ijetst-vol||03||issue||11||pages 4764-4770||november||issn mentioning

confidence: 99%

Studies of Rock Bed Solar Thermal Storage System for Space Heating Applications

Kumar¹,

Buddhi²,

Yadav³

2016

ijetst

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INTRODUCTIONEnergy storage system is one of the best device which store the energy such as mechanical energy, electrical energy, chemical energy, electrochemical energy, thermal energy, and renewable source of energy. Now a days energy storage system is widely used because it stores energy and used as useful work in future. The device which store the energy is called accumulator. The main concept of energy storage system is to store all type of energy such as renewable and nonrenewable source of energy. Energy storage system is also deals with the storage of kinetic energy, potential energy, gravitational energy, etc. Storing energy allows to balance the supply and demand of energy. Energy storage such a natural process is as earlier as the universe itself -the energy available at Energy the starting formation of the universe has been

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Packed bed thermal energy storage model – Generalized approach and experimental validation

Cited by 27 publications

References 21 publications

Experimental and Numerical Studies on Phase Change Materials

Experimental and Numerical Studies on Phase Change Materials

Thermal performance of sensible and latent heat thermal energy storage systems

Studies of Rock Bed Solar Thermal Storage System for Space Heating Applications

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