Search results

1 – 2 of 2
Per page
102050
Citations:
Loading...
Access Restricted. View access options
Article
Publication date: 22 August 2024

Antar Tahiri, Haroun Ragueb, Mustafa Moussaoui, Kacem Mansouri, Djemaa Guerraiche and Khelifa Guerraiche

This paper aims to present a numerical investigation into heat transfer and entropy generation resulting from magnetohydrodynamic laminar flow through a microchannel under…

31

Abstract

Purpose

This paper aims to present a numerical investigation into heat transfer and entropy generation resulting from magnetohydrodynamic laminar flow through a microchannel under asymmetric boundary conditions. Furthermore, the authors consider the effects of viscous dissipation and Joule heating.

Design/methodology/approach

The finite difference method is used to obtain the numerical solution. Simulations are conducted across a broad range of Hartmann (Ha = 0 ∼ 40) and Brinkman (Br = 0.01 ∼ 1) numbers, along with various asymmetric isothermal boundaries characterized by a heating ratio denoted as ϕ.

Findings

The findings indicate a significant increase in the Nusselt number with increasing Hartmann number, regardless of whether Br equals zero or not. In addition, it is demonstrated that temperature differences between the microchannel walls can lead to substantial distortions in fluid temperature distribution and heat transfer. The results reveal that the maximum entropy generation occurs at the highest values of Ha and η (a dimensionless parameter emerging from the formulation) obtained for ϕ = −1. Moreover, it is observed that local entropy generation rates are highest near the channel wall at the entrance region.

Originality/value

The study provides valuable insights into the complex interactions between magnetic fields, viscous dissipation and Joule heating in microchannel flows, particularly under asymmetric heating conditions. This contributes to a better understanding of heat transfer and entropy generation in advanced microfluidic systems, which is essential for optimizing their design and performance.

Details

International Journal of Numerical Methods for Heat & Fluid Flow, vol. 34 no. 10
Type: Research Article
ISSN: 0961-5539

Keywords

Access Restricted. View access options
Article
Publication date: 20 December 2022

Ahmad Abbas, Neks Triani, Wa Ode Rayyani and Muchriana Muchran

This paper aims to describe earnings growth and marketability generated by Islamic banks in Indonesia and to find the effects of a moderated mediation model on the nexus between…

839

Abstract

Purpose

This paper aims to describe earnings growth and marketability generated by Islamic banks in Indonesia and to find the effects of a moderated mediation model on the nexus between Islamic financial inclusion and literacy, marketability and earnings growth.

Design/methodology/approach

The sample of this research was Islamic commercial banks in Indonesia listed on the Financial Services Authority and Bank Indonesia using time-series data of financial statements from 2014 to 2021. This research was designed using the model of moderated mediation.

Findings

Earnings growth experienced by Islamic banks in Indonesia has a positive average value followed by a positive marketability. Based on the significance test, the level of earnings growth is positively affected by marketability. The result indicates that the higher the marketability, the higher the earnings growth of Islamic banks. In a moderated mediation model, the result has found a positive effect on the nexus between inclusion supported by the role of literacy, marketability and earnings growth. It indicates that Islamic financial inclusion moderated purely by the role of literacy enhances Islamic banking marketability so that earnings growth continuously increases.

Practical implications

The increase of literacy is an empirically proven way to strengthen market power, so the finding obtained in this research can be feedback from the scheme made by the Indonesian government in supporting the Islamic business and for the corporate area being eager to grow greater and faster in competing and equalizing its power in the banking industry. In addition, this research implies that other countries continuously promote and increase the role of Islamic financial literacy and inclusion to enhance market power and increase the growth in Islamic banking.

Originality/value

This research extends the limited scholarly work on the role of Islamic financial literacy and inclusion using a different design from prior studies. The framework of market power theory has been elaborated to find the effect of Islamic financial inclusion supported by the role of literacy on earnings growth through marketability. This research is a trailblazer in testing the nexus model between variables allowing the path analysis using the moderated mediation model.

Details

Journal of Islamic Accounting and Business Research, vol. 14 no. 7
Type: Research Article
ISSN: 1759-0817

Keywords

1 – 2 of 2
Per page
102050