A Comprehensive Energy Model for an Optimal Design of a Hybrid Refrigerated Van

Maiorino, Angelo; Mota-Babiloni, Adrián; Petruzziello, Fabio; Duca, Manuel Gesù Del; Ariano, Andrea; Aprea, Ciro

doi:10.20944/preprints202206.0088.v1

Cited by 3 publications

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“…Angelo et al used water as the PCM, and put 15.6 kg of tap water on the bare tube evaporator. The results showed that the introduction of PCM reduced the fluctuation of product temperature during the operation of the refrigerator and the temperature difference between the top and the bottom of the refrigerator, and prolonged the OFF time of the compressor [4]. Khan et al experimentally studied the use of PCMs behind the five sides of the evaporator.…”

Section: Introductionmentioning

confidence: 99%

Thermal Properties and Characterization of n-Decyl-Lauryl Alcohol/Expanded Graphite/Silicon Carbide Composite Phase Change Materials for Refrigerator Cold Energy Storage

Chen

HUANG

Yang

2022

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In this study, a kind of phase change materials (PCMs) with a low melting point (around 0 ℃) was prepared using n-decyl alcohol (DA) and lauryl alcohol (LA) as PCM, expanded graphite (EG) as supporting matrix. Nano silicon carbide (SiC) as a thermal conductivity promoter was added to modify the composite PCM. Expanded graphite with strong adsorption performance was used to not only prevent the leakage, but enhance the thermal conductivity. Leakage experiments showed that the maximum adsorption rate of DA-LA in composite PCM was 92 wt.%. The physical properties and chemical compatibility of composite PCM were studied, and the results showed that the raw materials were well absorbed and dispersed homogeneously into the porous structure of the EG, and they were only a physical bond with each other without chemical reaction. The melting and solidification temperature of composite PCM with the SiC mass ratio 3 wt.% was -0.85 ℃ and 1.08 ℃, and the latent heat of melting and solidification was 85.62 J/g and 74.94 J/g, respectively. the thermal conductivity of composite PCM with 9 wt.% SiC addition was 1.61, which was more than 4.19 times that of pure DA-LA. Thermogravimetric Analysis (TGA) experiment showed that composite PCM had outstanding thermal stability and durability. The present study confirms that this composite PCM is a potential candidate for cold energy storage in refrigerator applications.

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Section: Introductionmentioning

confidence: 99%

Thermal Properties and Characterization of n-Decyl-Lauryl Alcohol/Expanded Graphite/Silicon Carbide Composite Phase Change Materials for Refrigerator Cold Energy Storage

Chen

HUANG

Yang

2022

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Simulation-Based Sizing of a Secondary Loop Cooling System for a Refrigerated Vehicle

Lösch,

Fallmann,

Poks

et al. 2023

Energies

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Refrigerated transport by road is essential for the food industry but also contributes significantly to global energy consumption. In particular, last-mile transport, where the doors of the cooling chamber are opened frequently, puts a strain on energy efficiency and temperature control due to the high heat ingress from outside into the cooling chamber. These difficulties can be reduced by thermal energy storage systems, such as secondary loop refrigeration systems, if combined with a sophisticated control scheme. Although the storage capacity of such systems is critical for the overall performance of the cooling system, little research was performed regarding the sizing of the secondary loop thermal storage capacity. Therefore, this article examines the effect of the secondary loop thermal storage capacity on energy consumption and controller performance utilizing closed-loop simulations of a refrigerated vehicle model. Both a mixed-integer model predictive control scheme that can anticipate door openings and a conventional temperature controller are analyzed. An optimal thermal storage capacity of the secondary loop is found with the model predictive controller, whereas the conventional controller cannot exploit the secondary loop and thus shows significantly inferior performance. By using a dimensionless parameter for the thermal storage capacity of the secondary loop, the optimum found can be easily applied to refrigerated vehicles with various cooling chamber dimensions.

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Systematic Opportunity Scan of Energy Recovery Technologies Applied to Trucks with Electric Refrigerated Units

de Carvalho,

Miranda,

Silva

et al. 2024

Inventions

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This article presents an original research methodology that combines insights from patents and academic research, offering a unique perspective on energy recovery technologies for trucks equipped with refrigeration units. The purpose of the study is to perform a functional analysis of existing solutions and to suggest a mechanism for exposing unexplored areas and opportunities for innovation. To achieve this goal, a systematic opportunity scan is presented, investigating patents and conducting a state-of-the-art search of existing technologies. This scan classifies a diverse range of solutions, elucidating their interconnections and providing an overview of the existing technological area, covering system components and technical trends. Thus, the main functions and components are listed, as well as the system requirements. Once the functions have been surveyed, a morphological matrix is proposed, and five main functions are analyzed. This methodology makes it possible to list the majority of the possible solutions for the functions analyzed, taking into account the components observed in the literature review and patents, including new components raised by the research group. Finally, with the morphological matrix structure, it was possible to combine unexplored elements, achieving innovative solutions.

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A Comprehensive Energy Model for an Optimal Design of a Hybrid Refrigerated Van

Cited by 3 publications

References 0 publications

Thermal Properties and Characterization of n-Decyl-Lauryl Alcohol/Expanded Graphite/Silicon Carbide Composite Phase Change Materials for Refrigerator Cold Energy Storage

Thermal Properties and Characterization of n-Decyl-Lauryl Alcohol/Expanded Graphite/Silicon Carbide Composite Phase Change Materials for Refrigerator Cold Energy Storage

Simulation-Based Sizing of a Secondary Loop Cooling System for a Refrigerated Vehicle

Systematic Opportunity Scan of Energy Recovery Technologies Applied to Trucks with Electric Refrigerated Units

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