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All Journal International Journal of Renewable Energy Development Review of Islamic Social Finance and Entrepreneurship
Soleh, Mochamad
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Religion Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Engineering Social Sciences

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A techno-economic and environmental analysis of co-firing implementation using coal and wood bark blend at circulating fluidized bed boiler Cahyo, Nur; Sulistyowati, Desy; Rahmanta, Mujammil Asdhiyoga; Felani, Muhamad Iqbal; Soleh, Mochamad; Paryanto, Paryanto; Prismantoko, Adi; Hariana, Hariana
International Journal of Renewable Energy Development Vol 13, No 4 (2024): July 2024
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2024.60234

Abstract

The study aimed to explore the effects of biomass co-firing of coal using acacia wood bark at circulating fluidized bed (CFB) boiler coal-fired power plant with 110 MWe capacity. The analysis focused on main equipment parameters, including the potential for slagging, fouling, corrosion, agglomeration, fuel cost, and specific environmental factors. Initially, coal and acacia wood bark fuel were blended at a 3% mass ratio, with calorific values of 8.59 MJ/kg and 16.59 MJ/kg, respectively. The corrosion due to chlorine and slagging potential when using wood bark was grouped into the minor and medium categories. The results showed that co-firing at approximately 3% mass ratio contributed to changes in the upper furnace temperature due to the variation in heating value, high total humidity, and a less homogeneous particle size distribution. Significant differences were also observed in the temperature of the lower furnace area, showing the presence of a foreign object covering the nozzle, which disturbed the ignition process. A comparison of the seal pot temperature showed imbalances as observed from the temperature indicators installed on both sides of boiler, with specific fuel consumption (SFC) increasing by approximately 0.17%. During the performance test, the price of acacia wood bark was 0.034 USD/kg, resulting in fuel cost of 0.023355 USD/kWh, adding 0.061 cent/kWh to coal firing cost. Despite co-firing, the byproducts of the combustion process, such as SO2 and NOx, still met environmental quality standards in accordance with government regulations. However, a comprehensive medium- and long-term impact evaluation study should be carried out to implement co-firing operations using acacia wood bark at coal-fired power plant. Based on the characteristics, such as low calorific value, with high ash, total moisture, and alkali, acacia wood bark showed an increased potential to cause slagging and fouling.
Analysis of the impact of zakat fund distribution on mustahik productivity in Indonesia Asya'bani, Nispia; Afifa, Ulfia Nur; Widiastuti, Tika; Mawardi, Imron; Soleh, Mochamad
Review of Islamic Social Finance and Entrepreneurship Volume 4 Issue 2, 2025
Publisher : Center for Islamic Economics and Development Studies [P3EI]

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/RISFE.vol4.iss2.art7

Abstract

Purpose – This study examines the influence of zakat fund distribution on the productive behavior patterns of mustahiks in Indonesia, involving the moderating role of financial literacy. This study additionally examines the alterations in the behavior patterns of mustahiks following the receipt of zakat fund assistance.Methodology – This study employed a sequential explanatory mixed-methods design to examine the behavioral impacts of zakat distribution. In the quantitative phase, survey data were collected from 109 purposively selected mustahiks, using Likert-type items. The data were analyzed through Partial Least Squares Structural Equation Modeling (PLS-SEM) to estimate the effects of Zakat distribution on both productive and consumptive behavior, while also testing the moderating role of financial literacy.Findings – The results show that the variable of zakat fund distribution has a positive and significant effect on the productive and consumptive behavior of mustahik. The interplay of Sharia financial literacy as a moderating component can affect the connection between zakat fund distribution.Implications – The results of this research can be used as a reference for zakat institutions to monitor the impact of zakat fund distribution on beneficiaries and understand the factors influencing it.Originality – This research contributes to the existing literature by providing concrete evidence regarding the impact of zakat fund distribution on the behavior patterns of mustahiks, whether they receive productive or consumptive zakat. Additionally, there is an examination of the role of financial literacy, which acts as a factor that can strengthen or weaken that relationship.
Co-Authors Afifa, Ulfia Nur Asya'bani, Nispia Desy Sulistyowati, Desy Felani, Muhamad Iqbal Hariana, Hariana Imron Mawardi Nur Cahyo Paryanto Paryanto Prismantoko, Adi Rahmanta, Mujammil Asdhiyoga Tika Widiastuti