Experimental Measurement of Bulk Thermal Conductivity of Activated Carbon with Adsorbed Natural Gas for ANG Energy Storage Tank Design Application

Ertaş, A.; Boyce, Christopher T. R.; Gülbulak, Utku

doi:10.3390/en13030682

Cited by 11 publications

(4 citation statements)

References 25 publications

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“…As a result of several measurements, the average value of the thermal conductivity of the adsorbent monoliths was obtained, which was λ = 0.33 W•(m•K) −1 . The obtained data on the thermal conductivity of monoliths are in good agreement with the data obtained from a similar active carbon in [32].…”

Section: Monolithic Carbon Adsorbentsupporting

confidence: 87%

“…As a result of several measurements, the average value of the thermal conductivity of the adsorbent monoliths was obtained, which was λ = 0.33 W•(m⋅K) −1 . The obtained data on the thermal conductivity of monoliths are in good agreement with the data obtained from a similar active carbon in [32]. The thermal conductivity of the manufactured adsorption monoliths was measured using the MIT-1 material thermal conductivity meter, which is designed to quickly determine the thermal conductivity of various materials by the probe method in accordance with the Russian State Standard GOST 30256-94 [31].…”

Section: Monolithic Carbon Adsorbentsupporting

confidence: 74%

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Heat and Mass Transfer in an Adsorbed Natural Gas Storage System Filled with Monolithic Carbon Adsorbent during Circulating Gas Charging

et al. 2021

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Adsorbed natural gas (ANG) technology is a promising alternative to traditional compressed (CNG) and liquefied (LNG) natural gas systems. Nevertheless, the energy efficiency and storage capacity of an ANG system strongly depends on the thermal management of its inner volume because of significant heat effects occurring during adsorption/desorption processes. In the present work, a prototype of a circulating charging system for an ANG storage tank filled with a monolithic nanoporous carbon adsorbent was studied experimentally under isobaric conditions (0.5–3.5 MPa) at a constant volumetric flow rate (8–18 m3/h) or flow mode (Reynolds number at the adsorber inlet from 100,000 to 220,000). The study of the thermal state of the monolithic adsorbent layer and internal heat exchange processes during the circulating charging of an adsorbed natural gas storage system was carried out. The correlation between the gas flow mode, the dynamic gas flow temperature, and the heat transfer coefficient between the gas and adsorbent was determined. A one-dimensional mathematical model of the circulating low-temperature charging process was developed, the results of which correspond to the experimental measurements.

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Section: Monolithic Carbon Adsorbentsupporting

confidence: 87%

Section: Monolithic Carbon Adsorbentsupporting

confidence: 74%

Heat and Mass Transfer in an Adsorbed Natural Gas Storage System Filled with Monolithic Carbon Adsorbent during Circulating Gas Charging

et al. 2021

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“…During the magnetic induction heating process, the heat generated by the built-in nanomagnet heater only needs to heat up a tiny amount of solvent inside the nanospace. The porous carbon shell, with a low thermal conductivity ranging from 0.05 to 0.34 W m −1 K −1 [36][37][38] ensures the constraining and insulation of the heat in the hollow space. Thus, the temperature in the interior hollow space is expected to be much higher than that in the surrounding solution.…”

Section: Elevated Temperature and Pressure Inside Hollow Yolk-shell N...mentioning

confidence: 99%

Nanoengineered Design of inside‐Heating Hot Nanoreactor Surrounded by Cool Environment for Selective Hydrogenations

Zhang

Yang

et al. 2023

Advanced Materials

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Catalysts with designable intelligent nanostructure may potentially drive the changes in chemical reaction techniques. Herein, a multi‐function integrating nanocatalyst, Pt‐containing magnetic yolk‐shell carbonaceous structure, having catalysis function, microenvironment heating, thermal insulation, and elevated pressure into a whole is designed, which induces selective hydrogenation within heating‐constrained nanoreactors surrounded by ambient environment. As a demonstration, carbonyl of α, β‐unsaturated aldehydes/ketones are selectively hydrogenated to unsaturated alcohols with a >98% selectivity at a nearly complete conversion under mild conditions of 40 °C and 3 bar instead of harsh requirements of 120 °C and 30 bar. It is creatively demonstrated that the locally increased temperature and endogenous pressure (estimated as ≈120 °C, 9.7 bar) in the nano‐sized space greatly facilitate the reaction kinetics under an alternating magnetic field. The outward‐diffused products to the “cool environment” remain thermodynamically stable, avoiding the over‐hydrogenation that often occurs under constantly heated conditions of 120 °C. Regulation of the electronic state of Pt by sulfur doping of carbon allows selective chemical adsorption of the CO group and consequently leads to selective hydrogenation. It is expected that such a multi‐function integrated catalyst provides an ideal platform for precisely operating a variety of organic liquid‐phase transformations under mild reaction conditions.

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“…The effective thermal conductivity (λ eff , W m −1 • C −1 ) of sands is of great interest because it is required by petroleum or natural gas production from underground oil-or methane-bearing sands [1,2]. It is also the critical parameter to determine heat exchange between the surrounding environments and the borehole heat exchanger [3][4][5][6], nuclear waste disposal [7] or energy storage [8], buried power cables and steam/hot water pipelines [9], and other thermo-active ground structures (e.g., energy pile and tunnel linings). The value of λ eff is often an input for calculating the ground thermal regimes or land-atmosphere energy balance and associated soil physical, chemical and biological processes [10,11].…”

Section: Introductionmentioning

confidence: 99%

A Review and Evaluation of Predictive Models for Thermal Conductivity of Sands at Full Water Content Range

Wang

Dyck

et al. 2020

Energies

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The effective thermal conductivity (λ eff ) of sands is a critical parameter required by applications in geothermal energy resources, geo-technique and geo-environment and in science disciplines. However, the availability of the reliable λ eff data is not sufficient and predictive models are usually used in practice to estimate λ eff . These predictive models may vary in complexity, flexibility, accuracy and applications. There is no universal model that can be applied to all soil types and full water content range. The choice of different models may result in distinctive estimates of λ eff . The objectives of this study were to conduct an extensive review of the thermal conductivity models of sands and evaluate their performance with a large dataset consisting of various sand types from dry to saturation. A total of 14 models to predict λ eff of sands were evaluated with a large compiled dataset consisting of 1025 measurements on 62 sands from 20 studies. The results show that the models of Chen 2008 (CS2008) and Zhang et al. 2016 give the best estimates of thermal conductivity of sands, with Nash-Sutcliffe efficiency = 0.9 and RMSE = 0.3 W m −1 • C −1 . These two models are potentially applied to accurately estimate thermal conductivity of sands of different types.

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Experimental Measurement of Bulk Thermal Conductivity of Activated Carbon with Adsorbed Natural Gas for ANG Energy Storage Tank Design Application

Cited by 11 publications

References 25 publications

Heat and Mass Transfer in an Adsorbed Natural Gas Storage System Filled with Monolithic Carbon Adsorbent during Circulating Gas Charging

Heat and Mass Transfer in an Adsorbed Natural Gas Storage System Filled with Monolithic Carbon Adsorbent during Circulating Gas Charging

Nanoengineered Design of inside‐Heating Hot Nanoreactor Surrounded by Cool Environment for Selective Hydrogenations

A Review and Evaluation of Predictive Models for Thermal Conductivity of Sands at Full Water Content Range

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