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Heat and Mass Transfer Systems

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A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "J1: Heat and Mass Transfer".

Deadline for manuscript submissions: closed (31 March 2022) | Viewed by 3809

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Dr. Hamidreza Sadeghifar

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Guest Editor

1. Department of Chemical & Biological Engineering, University of British Columbia, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
2. Greenlight Innovation, 8339 Eastlake Dr #101, Burnaby, BC V5A 4W2, Canada
Interests: heat and mass transfer; clean and sustainable energy; thermal and process engineering; systems engineering, oil and gas refining

Special Issue Information

Dear Colleagues,

We are inviting original submissions to this Energies Special Issue dedicated to “Heat and Mass Transfer Systems”.

Heat and mass transfer generally covers a broad variety of energy and process systems within various engineering disciplines. The effective management of heat and mass transfer in such systems is an inherent part of optimizing their performance while reducing their cost and footprint. This call for papers is intended to disseminate advanced research on the design, optimization, performance enhancement, and/or cost reduction of various heat and mass transfer systems. Both experimental and theoretical works will be considered for this call. Studies conducted through a series of experiments combined with theoretical modeling and/or numerical simulations are particularly welcome. While the Special Issue is open to the real-world applications of heat and mass transfer to all energy-related areas, rapidly growing technologies including but not limited to fuel cells, batteries, solar cells, heat exchangers, geothermal energy, bioenergy, waste-to-energy systems, and water treatment will receive special attention.

Dr. Hamidreza Sadeghifar
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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Keywords

heat and mass transfer
transport phenomena
heat management
energy systems
process design
optimization
performance analysis
porous media
mathematical modeling
numerical simulations
clean energy
sustainable energy
renewable energy

Published Papers (2 papers)

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Research

24 pages, 5121 KiB

Open AccessArticle

Management of Energy Conversion Processes in Membrane Systems

by Kornelia M. Batko, Izabella Ślęzak-Prochazka, Andrzej Ślęzak, Wioletta M. Bajdur and Maria Włodarczyk-Makuła

Energies 2022, 15(5), 1661; https://0-doi-org.brum.beds.ac.uk/10.3390/en15051661 - 23 Feb 2022

Cited by 2 | Viewed by 1175

Abstract

The internal energy (U-energy) conversion to free energy (F-energy) and energy dissipation (S-energy) is a basic process that enables the continuity of life on Earth. Here, we present a novel method of evaluating F-energy in a [...] Read more.

K^{r}

version of the Kedem–Katchalsky–Peusner (K–K–P) formalism for concentration polarization conditions. The use of this formalism allows the determination of F-energy based on the production of S-energy and coefficient of the energy conversion efficiency. The K–K–P formalism requires the calculation of the Peusner coefficients

K_{i j}^{r}

and

K_{d e t}^{r}

(i, j ∈ {1, 2, 3}, r = A, B), which are necessary to calculate S-energy, the degree of coupling and coefficients of energy conversion efficiency. In turn, the equations for S-energy and coefficients of energy conversion efficiency are used in the F-energy calculations. The

K^{r}

form of the Kedem–Katchalsky–Peusner model equations, containing the Peusner coefficients

K_{i j}^{r}

and

K_{d e t}^{r}

, enables the analysis of energy conversion in membrane systems and is a useful tool for studying the transport properties of membranes. We showed that osmotic pressure dependences of indicated Peusner coefficients, energy conversion efficiency coefficient, entropy and energy production are nonlinear. These nonlinearities were caused by pseudophase transitions from non-convective to convective states or vice versa. The method presented in the paper can be used to assess F-energy resources. The results can be adapted to various membrane systems used in chemical engineering, environmental engineering or medical applications. It can be used in designing new technologies as a part of process management. Full article

(This article belongs to the Special Issue Heat and Mass Transfer Systems)

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19 pages, 6107 KiB

Open AccessArticle

Investigation of R290 Flow Boiling Heat Transfer and Exergy Loss in a Double-Concentric Pipe Based on CFD

by Jinfeng Wang, Shenglin Zhu and Jing Xie

Energies 2021, 14(21), 7121; https://0-doi-org.brum.beds.ac.uk/10.3390/en14217121 - 01 Nov 2021

Cited by 2 | Viewed by 1772

Abstract

In this paper, the impact of different factors on the flow boiling of R290 and R22 in double-concentric pipes are investigated through CFD numerical simulations. The numerical studies are performed by changing the inner tube diameter in the range of 3 to 7 mm, the refrigerant velocity between 1 and 5 m/s, the water velocity between 1 and 10 m/s and the saturation temperature in the range of 276 to 283 K. The heat transfer coefficient (HTC), pressure drop and exergy destruction of R290 are determined. The results show that HTC, pressure drop and exergy destruction are significantly impacted by the pipe diameter and the refrigerant velocity, but slightly impacted by water velocity and saturation temperature. Moreover, the exergy loss and pressure drop of R290 are 11.8–13.3% and 4.3–10.2% lower than those of R22. R290 has a lower energy loss than R22 in the evaporation process in the double-concentric pipe. However, the HTC of R290 is 57.3–59.7% lower than that of R22. The HTC of R290 can be optimized by increasing the pipe diameter or the R290 velocity. Full article

(This article belongs to the Special Issue Heat and Mass Transfer Systems)

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