Development of a validated 2D model for flow, moisture and heat transport in a packed bed reactor using MRI experiment and a lab-scale reactor setup

Gaeini, M Mohammadreza; Wind, R; Donkers, Paj Pim; Rindt, Ccm Camilo

doi:10.1016/j.ijheatmasstransfer.2017.06.034

Cited by 34 publications

(11 citation statements)

References 43 publications

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“…Pressure drop and velocity profiles were evaluated in a packed bed reactor, and a 2D mass and heat transfer model were developed. Several agreements with experimental results were found, this was effective in optimising the reactors performance [14]. Several studies utilised COMSOL ® to perform complex simulations and increase solution accuracy through mesh refinement and Finite Element (FE) methods.…”

Section: Introductionmentioning

confidence: 70%

Optimisation of Carbonation Reactor Design Using Multiphysics Models for Precipitated Calcium Carbonate PCC Production

Elzaki¹

2020

IRJIET

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Temperature distributions in the carbonation reactor with an inner diameter of 4.23m and overall length of 7m is numerically modelled. This is motivated by the need to lower overall capital and operating costs, and to optimise the carbonation process performance, simultaneously. In this paper, computational simulations are used to design an industrial scale carbonation reactor 89.72m 3 consisting of an external cooling jacket. Several parameters are varied including reactor's geometry (6 shapes), wall thickness (100, 200, and 300mm), cooling jacket temperature (15, 25, and 35ºC), and material type. These parameters are varied interchangeably to compare temperature probe plots at a point probe (1.5,0) located closer to the cooling jacket region. Simulations in COMSOL ® Multiphysics 5.2a show that partial Carbon Steel AISI 4340 jackets with a 100mm distance, between vessel wall and outside wall of jacket, while operating at ambient temperature range of 20-25ºc, can achieve the required operating temperature i.e. 50±5ºC. Then, the precipitation process of the calcium carbonate (PCC) is maximised. This result in decreased bare materials' capital costs by 95.87% and 97.39% compared to Nickel and Titanium, respectively. The need for cooling the water for the jacket is eliminated, while operating costs are lowered by 25-50% per 10ºC. A simplified experimental setup is proposed to demonstrate the coupling of COMSOL ® simulations with experimental work can be a reliable and an effective method to evaluate the carbonation reactor model design.

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Section: Introductionmentioning

confidence: 70%

Optimisation of Carbonation Reactor Design Using Multiphysics Models for Precipitated Calcium Carbonate PCC Production

Elzaki¹

2020

IRJIET

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“…For years, packed beds of thermochemical materials have been investigated for thermal energy storage purposes because of their simple design and low cost. In these beds, the salts are heated through heat exchanger plates (closed systems) [9] or by a flow of hot dry gases (open system) [6,10] (see Fig. 1).…”

Section: A(s) + B(g) ↔ Ab(s) + Heatmentioning

confidence: 99%

“…The key advantage of TES is its potential for low cost at the gigawatt scale [5]. A good option for long-term storage of heat in the built environment is thermochemical heat storage TCHS working based on hydration and dehydration of salts [6]. It takes heat to dry salts and when the heat is needed, the salts can be hydrated to release the stored energy, according to the reaction in Eq.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigations for effective thermal conductivity in packed beds of thermochemical energy storage materials

Walayat

Duesmann²,

Derks

et al. 2021

Applied Thermal Engineering

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“…The same authors developed a onedimensional transient model for the energy storage system using zeolite 13X with the emphasis on the dynamic behaviors [62]. They extended their model to a twodimensional model and validated it using experiments [63]. The pressure drop in the packed bed was modeled using the well-known Ergun equation, in which the Darcy term accounts for the flow velocity and Forchheimer term for the flow inertia [64][65][66].…”

Section: Investigation Of Open Cyclesmentioning

confidence: 99%

Sorption-based Energy Storage Systems: A Review

Thu¹,

Nasruddin²,

Mitra³

et al. 2019

MST

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Mismatched timing between the supply and demand of energy calls for reliable storage systems. Energy storage systems have become further significant with the widespread implementation of renewable energy. These systems can mitigate problems that are often associated with renewable energy sources such as supply unreliability while meeting the demand during peak hours. Energy can be stored in various forms, yet storage systems can be generally grouped based on their output forms, namely (i) electricity and (ii) heat or thermal energy. Electrical energy is the most convenient and effective form since it can power almost all modern devices. However, the electricity itself is vastly produced by thermodynamic cycles at a particular thermal efficiency using thermal energy from fossil fuels. Meanwhile, thermal energy for the HVAC&R and the production of hot water remains the largest portion of the building energy sector. Thermal energy can be stored in the form of sensible, latent, and thermochemical energy. This review focuses on thermochemical sorption-based energy storage systems. These systems exploit endothermic and exothermic sorption processes for charging and discharging of the thermal energy. Sorption-based storage systems exhibit huge potential due to a high energy density and their ability to store the energy at room temperature. We discuss the current state-of-the-art developments, key challenges, and future prospects of sorption-based energy systems.

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Development of a validated 2D model for flow, moisture and heat transport in a packed bed reactor using MRI experiment and a lab-scale reactor setup

Cited by 34 publications

References 43 publications

Optimisation of Carbonation Reactor Design Using Multiphysics Models for Precipitated Calcium Carbonate PCC Production

Optimisation of Carbonation Reactor Design Using Multiphysics Models for Precipitated Calcium Carbonate PCC Production

Experimental and numerical investigations for effective thermal conductivity in packed beds of thermochemical energy storage materials

Sorption-based Energy Storage Systems: A Review

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