Performance evaluation of coupled thermal enhancement through novel wire‐wound fins design and graphene nano‐ platelets in shell‐and‐tube latent heat storage system
Authors: Khan, Z. and Khan, Z.A.
Journal: Energies
Volume: 14
Issue: 13
eISSN: 1996-1073
DOI: 10.3390/en14133743
Abstract:Technological development in latent heat storage (LHS) systems is essential for energy security and energy management for both renewable and non‐renewable sources. In this article, numerical analyses on a shell‐and‐tube‐based LHS system with coupled thermal enhancement through extended fins and nano‐additives are conducted to propose optimal combinations for guar-anteed higher discharging rate, enthalpy capacity and thermal distribution. Transient numerical simulations of fourteen scenarios with varied combinations are investigated in three‐dimensional computational models. The shell‐and‐tube includes paraffin as phase change material (PCM), lon-gitudinal, radial and wire‐wound fins and graphene nano‐platelets (GNP) as extended fins and nano‐additives, respectively. The extended fins have demonstrated better effectiveness than nano-additives. For instance, the discharging durations for paraffin with longitudinal, radial and wire-wound fins are shortened by 88.76%, 95.13% and 96.44% as compared to 39.33% for paraffin with 2.5% GNP. The combined strengths of extended fins and nano‐additives have indicated further enhancement in neutralising the insulative resistance and stratification of paraffin. However, the in-crease in volume fraction from 1% to 3% and 5% is rather detrimental to the total enthalpy capacity. Hence, the novel designed wire‐wound fins with both base paraffin and paraffin with 1% GNP are proposed as optimal candidates owing to their significantly higher heat transfer potentials. The proposed novel designed configuration can retrieve 11.15 MJ of thermal enthalpy in 1.08 h as compared to 44.5 h for paraffin in a conventional shell‐and‐tube without fins. In addition, the proposed novel designed LHS systems have prolonged service life with zero maintenance and flexible scalability to meet both medium and large‐scale energy storage demands.
https://eprints.bournemouth.ac.uk/35710/
Source: Scopus
Performance Evaluation of Coupled Thermal Enhancement through Novel Wire-Wound Fins Design and Graphene Nano-Platelets in Shell-and-Tube Latent Heat Storage System
Authors: Khan, Z. and Khan, Z.A.
Journal: ENERGIES
Volume: 14
Issue: 13
eISSN: 1996-1073
DOI: 10.3390/en14133743
https://eprints.bournemouth.ac.uk/35710/
Source: Web of Science (Lite)
Performance Evaluation of Coupled Thermal Enhancement through Novel Wire-Wound Fins Design and Graphene Nano-Platelets in Shell-and-Tube Latent Heat Storage System
Authors: Khan, Z. and Khan, Z.
Journal: Energies
Pages: 1-22
Publisher: MDPI AG
ISSN: 1996-1073
DOI: 10.3390/en14133743
Abstract:Technological development in latent heat storage (LHS) system is essential for energy security and energy management for both renewable and non-renewable sources. In this article, the numerical analyses on shell-and-tube based LHS system with coupled thermal enhancement through ex-tended fins and nano-additives are conducted to propose optimal combinations for guaranteed higher discharging rate, enthalpy capacity and thermal distribution. Transient numerical simu-lations of fourteen scenarios with varied combinations are investigated in three-dimensional computational models. Shell-and-tube includes paraffin as phase change material (PCM), longi-tudinal, radial and wire-wound fins and graphene nano-platelets (GNP) as extended fins and nano-additives, respectively. The extended fins have demonstrated better effectiveness than nano-additives. For instance, the discharging durations for paraffin with longitudinal, radial and wire-wound fins are shortened by 88.76%, 95.13% and 96.44% as compared to 39.33% for paraffin with 2.5% GNP. The combined strengths of extended fins and nano-additives have indicated further enhancement in neutralising the insulative resistance and stratification of paraffin. However, the increase in volume fraction from 1% to 3% and 5% is rather detrimental to total enthalpy capacity. Hence, the novel designed wire-wound fins with both base paraffin and paraffin with 1% GNP are proposed as optimal candidates owing to their significantly higher heat transfer potentials. The proposed novel designed configuration can retrieve 11.15 MJ of thermal enthalpy in 1.08 h as compared to 44.5 h for paraffin in conventional shell-and-tube without fins. In addition, the proposed novel designed LHS systems have prolonged service life with zero maintenance and flexible scalability to meet both medium and large-scale energy storage demands.
https://eprints.bournemouth.ac.uk/35710/
https://www.mdpi.com/1996-1073/14/13/3743
Source: Manual
Performance Evaluation of Coupled Thermal Enhancement through Novel Wire-Wound Fins Design and Graphene Nano-Platelets in Shell-and-Tube Latent Heat Storage System
Authors: Khan, Z. and Khan, Z.A.
Journal: Energies
Volume: 14
Issue: 13
ISSN: 1996-1073
Abstract:Technological development in latent heat storage (LHS) system is essential for energy security and energy management for both renewable and non-renewable sources. In this article, the numerical analyses on shell-and-tube based LHS system with coupled thermal enhancement through ex-tended fins and nano-additives are conducted to propose optimal combinations for guaranteed higher discharging rate, enthalpy capacity and thermal distribution. Transient numerical simu-lations of fourteen scenarios with varied combinations are investigated in three-dimensional computational models. Shell-and-tube includes paraffin as phase change material (PCM), longi-tudinal, radial and wire-wound fins and graphene nano-platelets (GNP) as extended fins and nano-additives, respectively. The extended fins have demonstrated better effectiveness than nano-additives. For instance, the discharging durations for paraffin with longitudinal, radial and wire-wound fins are shortened by 88.76%, 95.13% and 96.44% as compared to 39.33% for paraffin with 2.5% GNP. The combined strengths of extended fins and nano-additives have indicated further enhancement in neutralising the insulative resistance and stratification of paraffin. However, the increase in volume fraction from 1% to 3% and 5% is rather detrimental to total enthalpy capacity. Hence, the novel designed wire-wound fins with both base paraffin and paraffin with 1% GNP are proposed as optimal candidates owing to their significantly higher heat transfer potentials. The proposed novel designed configuration can retrieve 11.15 MJ of thermal enthalpy in 1.08 h as compared to 44.5 h for paraffin in conventional shell-and-tube without fins. In addition, the proposed novel designed LHS systems have prolonged service life with zero maintenance and flexible scalability to meet both medium and large-scale energy storage demands.
https://eprints.bournemouth.ac.uk/35710/
https://www.mdpi.com/1996-1073/14/13/3743
Source: BURO EPrints