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ISSN: 2772-6835

Numerical simulation on the frosting and heat transfer characteristics of plate-fin heat exchanger considering confinement effect

In refrigerating industry, frost commonly deposits on the confined cold surfaces of heat exchangers, which affects the heat transfer performance. Along the confined flow path of the heat exchanger,...

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The role of biomass energy in a 100% renewable energy system for Akita prefecture, Japan

This study aims to add the biomass power to the 100% renewable energy system for Akita prefecture in the previous study, and to analyse the energy cost and availability of each facility. It was assumed...

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Use of residual lignocellulosic biomass for energetic uses and environmental remediation through pyrolysis

This study analyzes the potential of an agricultural residue, hazelnut shells, as raw material in a combined thermochemical process to obtain pyro-gas and biochar for environmental remediation. The...

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Heat transfer effectiveness characteristics maps for additively manufactured TPMS compact heat exchangers

Increased power density in modern miniaturized electronics caused difficulty in keeping electronic performance effective. This challenge leads to the search for high-performance compact heat exchanger...

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The importance and potential of photovoltaics in the context of low-carbon development in Poland

•In 2018–2021, photovoltaic micro-installations were created 700 thousand in Poland.•The next step in RES development will be the implementation of home energy storage.•Co-financing and legal regulations...

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Optimizing a spark-ignition engine fuelled with methane using a two-zone combustion model

Methane which can be produced from biogas has a great potential to be used as an alternative renewable fuel for spark-ignition engines. However, engines need to be optimized for methane use. The aim...

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Thermochemical splitting of carbon dioxide by lanthanum manganites - understanding the mechanistic effects of doping

This review investigates the effect of different dopants on the oxygen evolution and carbon dioxide splitting abilities of the lanthanum manganites. Particular focus was placed on the lanthanide, alkaline...

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Evaluation and development of a predictive model for conjugate phase change heat transfer of energy storage system partially filled with porous media

The present study proposes a predictive model to explore the effect of partially filled porous media on the conjugate heat transfer characteristic of phase change material with interfacial coupling...

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Efficient hydrogen recovery from Big-Scale Porous Metal Hydride (MH) Reactor: Impact of pressure and MH-thermophysical properties

An advanced ANSYS FLUENT-based model was developed for hydrogen recovery from a multi-tubular fixed-bed metal hydride (MH) reactor of large-scale design. The model was firstly validated by comparing...

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Melting/solidification of phase change material in a multi-tube heat exchanger in the presence of metal foam: effect of the geometrical configuration of tubes

One of the likely methods for enhancing heat transfer in a latent thermal energy storage system is the conception of a thermal unit. In this work, the orientation of oval tubes (horizontal, vertical,...

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A Review on Heat Transfer in Nanoporous Silica Aerogel Insulation Materials and Its Modeling

Silica aerogels are widely used in many fields for thermal insulation, such as building insulation, electric power energy, energy storage systems, and high-temperature thermal protection due to their...

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Energy storage systems: A review

The world is rapidly adopting renewable energy alternatives at a remarkable rate to address the ever-increasing environmental crisis of CO2 emissions. Renewable Energy Systems (RES) offers enormous...

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Radiative cooling and cold storage for concentrated solar power plants

Concentrated solar power (CSP) plants are generally located in solar-abundant yet hot and water-stressed locations. In such circumstances, efficient but water-intensive once-through wet cooling and...

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Experimental research and numerical simulation of the thermal performance of a tube-fin cold energy storage unit using water/modified expanded graphite as the phase change material

In this study, experimental and numerical investigations were conducted on a tube-fin heat-exchanger latent-heat cold energy storage unit. The fin side of the heat exchanger was filled with water as...

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Optimal investment analysis for heat pumps and nuclear heat in decarbonised Helsinki metropolitan district heating system

Decarbonisation of district heating and cooling (DHC) system in Helsinki metropolitan area requires investments in new energy technologies and approaches to replace fossil fuel fired district heating...

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Determination of the inner forms of hollow blocks containing phase-changing material for different climate regions

Hollow blocks are used widely in buildings for their lightweight construction and high thermal resistance characteristics. When used with a phase change material (PCM), these blocks can reduce the heating...

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A simultaneous approach for integration of thermal energy storages in industrial processes using multiperiod heat integration

In times of increasing global warming, enormous efforts are required to rapidly reduce greenhouse gas (GHG) emissions. Due to the EU’s target of climate neutrality by 2050 and the even more ambitious...

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Application of similarity theory in the study of proton exchange membrane fuel cells: a comprehensive review of recent developments and future research requirements

•Applications of the similarity theory in PEMFC research are reviewed.•Advantages of using similarity theory are clarified and demonstrated comprehensively.•Further research needs in the PEMFC similarity...

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Inaugural editorial for Energy Storage and Saving

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A modeling study of different kinds of sessile droplets on the horizontal surface with surface wettability and gravity effects considered

•A theoretical model is developed to calculate the droplet profiles on flat surface.•The effects of both gravity and surface wettability are considered in this model.•A higher accuracy is reached when...

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Numerical study of particle fouling deposition on heat transfer surface

•A local calculation method based on the Eulerian approach is used to simulate the deposition characteristics of fly ash particles.•A fouling model on the outer side of tubes considering deposition...

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Finite time thermodynamics analysis and research of pulsating heat pipe cold storage device

Phase change energy storage technology can effectively solve the energy mismatch in space and time. There are many disadvantages of phase change materials (PCMs), such as high supercooling, phase separation...

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Distinct facets to enhance the process of hydrogen production via methanol steam reforming — a review

Methanol steam reforming manifests great potential for generating hydrogen owing to its lower reaction temperature (200–300 °C) and higher hydrogen/carbon ratio comparing with ethanol and methane reforming....

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