Heat transfer and flow of bulk solids in a moving bed

Niegsch, J.; Köneke, Dieter; Weinspach, Paul‐Michael

doi:10.1016/0255-2701(94)85006-2

Cited by 44 publications

(14 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It shows areas of low particle velocity at the top and the bottom of the tube, representing the stagnant zone and the void, respectively, which are frequently observed for particulate flow around an immersed cylinder [6,18]. Between the tubes, the particles accelerate and reach a The resulting temperature contour is shown in Figure 4.…”

Section: Model Validationmentioning

confidence: 97%

See 1 more Smart Citation

Moving Bed Heat Exchangers for Use With Heat Storage in Concentrating Solar Plants: A Multiphase Model

Baumann

Zunft

Tamme

2013

Heat Transfer Engineering

View full text Add to dashboard Cite

Heat storage based on particulate materials is a promising option to provide a demand-oriented electricity production with utility-scale solar power plants. For energy storage discharge, a moving bed heat exchanger is considered and its design is investigated. As a basis for a flexible design tool, a multiphase model based on the Eulerian continuum approach was set up to describe the bulk flow and the thermal performance. The model was applied to an example heat exchanger layout, and the simulation results were compared with an empirical model, confirming the validity of the approach. Initial parameter variations identify the key parameters and their effect on the thermal performance.

show abstract

Section: Model Validationmentioning

confidence: 97%

“…MBHEs and their heat transfer capabilities have been investigated in recent years, where the experimental determination of the heat transfer coefficient was a central aspect [4][5][6][7]. A common finding is that the heat transfer coefficient strongly depends on the mass flux of particles.…”

Section: Modeling Of a Moving Bedmentioning

confidence: 99%

Moving Bed Heat Exchangers for Use With Heat Storage in Concentrating Solar Plants: A Multiphase Model

Baumann

Zunft

Tamme

2013

Heat Transfer Engineering

View full text Add to dashboard Cite

show abstract

“…Niegsch developed a model for granular flow through tube banks that takes into account the stagnation and void spaces that are characteristic of granular flow around obstacles. The model estimates a velocity field as well as the heat transfer coefficient between the tubes and the granular material (Niegsch et al 1994). This model is being used to design the heat pipe arrangement for the HEAT system.…”

Section: Helium Extraction and Acquisition Test Bed Progressmentioning

confidence: 99%

Recent Progress in Lunar Helium-3 Extraction Research

Olson

2016

Proc. Wisc. Space Conf.

View full text Add to dashboard Cite

Research is ongoing to develop a prototype lunar volatiles extraction system that will demonstrate a process for acquiring helium-3 for future fusion power plants that would produce little to no radioactive waste, and other volatile gases that can be used for life support in space. The prototype system is called the Helium Extraction and Acquisition Test bed (HEAT). Testing of HEAT will focus on obtaining information on the rate of 3 He extraction possible and to what extent thermal energy recovery can be employed in this kind of volatile extraction system.

show abstract

“…The simultaneous analysis of flow and heat transfer was carried out by Niegsch et al (1994), who determined the flow zone with repose angle of particles, and analyzed velocity field using using simple continuity equation. In their work heat transfer from a heat source pipe is proportional to the direct contact time between the particles and the pipe, which can be obtained by integrating velocity field.…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis of the flow and heat transfer of solid particles in moving beds

Lee

Youn

Park

1998

Int. J. Energy Res.

View full text Add to dashboard Cite

A numerical analysis for the flow and heat transfer of solid particles in moving beds of heat exchangers is presented. The solid particles pass through a bundle of heat source tubes as the result of the gravitational force. Heat energy is transferred through direct contact of particles with the heat source tubes. A viscous‐plastic fluid model and a convective heat transfer model are employed in the analysis. The flow field dominantly determines the total heat transfer in the heat exchanger. As the velocities of solid particles around the heat source tubes increase, the heat transfer from the tubes also increases. Examples are presented to show the performance of the numerical model. The effect of flow on heat transfer has also been studied. © 1998 John Wiley & Sons, Ltd.

show abstract

Heat transfer and flow of bulk solids in a moving bed

Cited by 44 publications

References 5 publications

Moving Bed Heat Exchangers for Use With Heat Storage in Concentrating Solar Plants: A Multiphase Model

Moving Bed Heat Exchangers for Use With Heat Storage in Concentrating Solar Plants: A Multiphase Model

Recent Progress in Lunar Helium-3 Extraction Research

Finite element analysis of the flow and heat transfer of solid particles in moving beds

Contact Info

Product

Resources

About