Exergy and energy comparison of organic phase change materials based thermal energy storage system integrated with engine exhaust

Yadav, Chandrmani; Sahoo, Rashmi Rekha

doi:10.1016/j.est.2019.100773

Cited by 30 publications

(12 citation statements)

References 26 publications

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“…Furthermore, by comparing the experimental with the theoretical curves, the kinetic model that best fits the experimental curves can be determined. Table 4 shows the values of the sum of standard deviation for various reaction models, calculated according to Equation (11). The most probable reaction model for the thermal decomposition of palm oil is the phase boundary controlled process (contracting area, RR 2 mechanism) in which the nucleation step occurs immediately, so that the surface of each particle is covered with a layer of the product [59].…”

Section: Reaction Model and Pre-exponential Factor Determinationmentioning

confidence: 99%

“…In this context, the use of thermal energy storage (TES) materials, being capable to store heat to be later used under varying temperature conditions in combination with passive and active techniques has lately gathered increasing attention by the scientific community [11,12,13]. As a matter of fact, this kind of materials can guarantee a favorable dynamic response to the local boundary conditions, providing huge energy densities and, eventually, a unique buffering effect on indoor thermal fluctuations.…”

Section: Introductionmentioning

confidence: 99%

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Palm oil-based bio-PCM for energy efficient building applications: Multipurpose thermal investigation and life cycle assessment

Fabiani

Pisello

Barbanera

et al. 2020

Journal of Energy Storage

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This study aims at investigating the potential use of a bio-based phase change material, i.e. expired palm oil from the food industry, as a more sustainable alternative to petrochemical-based organic PCMs. To this purpose, thermogravimetric analysis (TGA) and isoconversional methods (Starink and Miura-Maki methods) are applied and the main thermo-physical properties of the blend are investigated by means of differential scanning calorimetry (DSC) and extensive thermal monitoring in a controlled realistic environment. Finally, a life cycle assessment is used to evaluate the environmental impact of the bio-based material in comparison to the more common petrochemical-based application. Kinetic analysis results indicate the two dimensional phase boundary reaction model as the most reliable scheme for describing the oxidation of palm oil, with an activation energy of about 73 kJ•mol −1. The DSC and the thermal monitoring procedure, showed two separate melting peaks in the ambient temperature range, which globally guarantee a melting enthalpy of about 50 kJ•kg −1 , i.e. of the same order of magnitude of the first developed PCMs. Results from the life cycle analysis reveal that the expired palm oil can be considered a promising material for bio-based latent applications.

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Section: Reaction Model and Pre-exponential Factor Determinationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Palm oil-based bio-PCM for energy efficient building applications: Multipurpose thermal investigation and life cycle assessment

Fabiani

Pisello

Barbanera

et al. 2020

Journal of Energy Storage

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“…Chenzhen LIU, 1,2) Zhengyuan MA, 1) Ruicheng JIANG, 1) Jie QU 1) and Zhonghao RAO 1 Phase change materials (PCM) have great application potential in the field of thermal energy storage (TES). However, most PCM have low thermal conductivity, which limits the TES efficiency.…”

Section: Experimental Study On Heat Transfer Enhancement Of Phase Chamentioning

confidence: 99%

“…PCM can absorb or release a large amount of latent heat when undergoing phase transition, which could be utilized for TES application. 1) Because of this characteristic, PCM plays an important role in energy conservation and emission reduction. 2,3) Up to now, PCM have showed great application potential in many fields, such as solar energy utilization, [4][5][6] intelligent building, [7][8][9] waste heat recovery, [10][11][12] thermal management [13][14][15] and so on.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Heat Transfer Enhancement of Phase Change Material using Embedded Oscillating Heat Pipe for Thermal Energy Storage

Liu

Jiang

et al. 2020

ISIJ Int.

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“…Also, the melting temperature of the PCM used for exhaust heat recovery is a decisive factor in PCM selection. Generally, PCMs with a melting temperature above 293 K is used to storing heat [17]. On the other hand, the low thermal conductivity of most PCMs limits the performance of LHTES systems, leading to a much longer charging or…”

Section: Introductionmentioning

confidence: 99%

A numerical study on processes of charge and discharge of latent heat energy storage system using RT27 paraffin wax for exhaust waste heat recovery in a SI engine

Gürbüz

Ateş

2020

International Journal of Automotive Science and Technology

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In the present paper, the numerical analyses of the heat charge and discharge processes of the latent heat energy storage (LHTES) system designed for the recovery of the exhaust waste heat energy of the SI engine presented. In the LHTES system as phase change material (PCM), the charge and discharge ability of paraffin wax commercially identified with code RT27 were analyzed depending on time. Two closed-loop fluid circulation system consisting of two heat exchangers (HESs) was designed, someone connected to the exhaust path of SI engine for waste heat recovery, and the other used for the charging and discharging of waste heat energy in the PCM. To transfer the waste heat from the hot exhaust gases to the PC, cold water was used as the heat carrier fluid. In the numerical analysis, the exhaust gas temperature and flow rate values of a single-cylinder, air-cooled having a stroke volume of 476.5 cm3 SI engine operated with gasoline at 1600 rpm engine speed and 1/2 throttle position were used. As a result, at designed LHTES system and numerical analysis performed for RT27 paraffin wax under boundary conditions, the process of heat charge (melting) completed at 8000.sec with 93% liquid-fraction, while the process of heat discharge (solidification) completed at 55000.sec with 15% liquid-fraction.

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Exergy and energy comparison of organic phase change materials based thermal energy storage system integrated with engine exhaust

Cited by 30 publications

References 26 publications

Palm oil-based bio-PCM for energy efficient building applications: Multipurpose thermal investigation and life cycle assessment

Palm oil-based bio-PCM for energy efficient building applications: Multipurpose thermal investigation and life cycle assessment

Experimental Study on Heat Transfer Enhancement of Phase Change Material using Embedded Oscillating Heat Pipe for Thermal Energy Storage

A numerical study on processes of charge and discharge of latent heat energy storage system using RT27 paraffin wax for exhaust waste heat recovery in a SI engine

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