Experimental investigation of a reticulated porous alumina heat exchanger for high temperature gas heat recovery

A. Banerjee; R. Bala Chandran; J. H. Davidson

doi:10.1016/j.applthermaleng.2014.10.033

Experimental investigation of a reticulated porous alumina heat exchanger for high temperature gas heat recovery

A. Banerjee, R. Bala Chandran, J. H. Davidson^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

63 Citations (Scopus)

Abstract

The present study presents an experimental study of a prototype counter-flow heat exchanger designed to recover sensible heat from inert and reactive gases flowing through a high temperature solar reactor for splitting CO₂. The tube-in-tube heat exchanger is comprised of two concentric alumina tubes, each filled with reticulated porous alumina with a nominal porosity of 80% and pore density of 5 pores per inch (ppi). The RPC provides high heat transfer surface area per unit volume (917 m^-1) with low pressure drop. Measurements include the permeability, inertial coefficient, overall heat transfer coefficient, effectiveness and pressure drop. For laminar flow and an inlet gas temperature of 1240 K, the overall heat transfer coefficients are 36-41 W m^-2 K^-1. The measured performance is in good agreement with a prior CFD model of the heat exchanger.

Original language	English
Pages (from-to)	889-895
Number of pages	7
Journal	Applied thermal engineering
Volume	75
DOIs	https://doi.org/10.1016/j.applthermaleng.2014.10.033
Publication status	Published - 22 Jan 2015
Externally published	Yes

Keywords

Alumina
Heat exchanger
High temperature
Reticulated porous ceramic

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10.1016/j.applthermaleng.2014.10.033

Cite this

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title = "Experimental investigation of a reticulated porous alumina heat exchanger for high temperature gas heat recovery",

abstract = "The present study presents an experimental study of a prototype counter-flow heat exchanger designed to recover sensible heat from inert and reactive gases flowing through a high temperature solar reactor for splitting CO2. The tube-in-tube heat exchanger is comprised of two concentric alumina tubes, each filled with reticulated porous alumina with a nominal porosity of 80% and pore density of 5 pores per inch (ppi). The RPC provides high heat transfer surface area per unit volume (917 m-1) with low pressure drop. Measurements include the permeability, inertial coefficient, overall heat transfer coefficient, effectiveness and pressure drop. For laminar flow and an inlet gas temperature of 1240 K, the overall heat transfer coefficients are 36-41 W m-2 K-1. The measured performance is in good agreement with a prior CFD model of the heat exchanger.",

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author = "A. Banerjee and Chandran, {R. Bala} and Davidson, {J. H.}",

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T1 - Experimental investigation of a reticulated porous alumina heat exchanger for high temperature gas heat recovery

AU - Banerjee, A.

AU - Chandran, R. Bala

AU - Davidson, J. H.

PY - 2015/1/22

Y1 - 2015/1/22

N2 - The present study presents an experimental study of a prototype counter-flow heat exchanger designed to recover sensible heat from inert and reactive gases flowing through a high temperature solar reactor for splitting CO2. The tube-in-tube heat exchanger is comprised of two concentric alumina tubes, each filled with reticulated porous alumina with a nominal porosity of 80% and pore density of 5 pores per inch (ppi). The RPC provides high heat transfer surface area per unit volume (917 m-1) with low pressure drop. Measurements include the permeability, inertial coefficient, overall heat transfer coefficient, effectiveness and pressure drop. For laminar flow and an inlet gas temperature of 1240 K, the overall heat transfer coefficients are 36-41 W m-2 K-1. The measured performance is in good agreement with a prior CFD model of the heat exchanger.

AB - The present study presents an experimental study of a prototype counter-flow heat exchanger designed to recover sensible heat from inert and reactive gases flowing through a high temperature solar reactor for splitting CO2. The tube-in-tube heat exchanger is comprised of two concentric alumina tubes, each filled with reticulated porous alumina with a nominal porosity of 80% and pore density of 5 pores per inch (ppi). The RPC provides high heat transfer surface area per unit volume (917 m-1) with low pressure drop. Measurements include the permeability, inertial coefficient, overall heat transfer coefficient, effectiveness and pressure drop. For laminar flow and an inlet gas temperature of 1240 K, the overall heat transfer coefficients are 36-41 W m-2 K-1. The measured performance is in good agreement with a prior CFD model of the heat exchanger.

KW - Alumina

KW - Heat exchanger

KW - High temperature

KW - Reticulated porous ceramic

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DO - 10.1016/j.applthermaleng.2014.10.033

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VL - 75

SP - 889

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JO - Applied thermal engineering

JF - Applied thermal engineering

ER -

Experimental investigation of a reticulated porous alumina heat exchanger for high temperature gas heat recovery

Abstract

Keywords

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