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All Journal International Journal of Marine Engineering Innovation and Research
Damora Rhakasywi
Departement of Mechanical Engineering, Universitas Pembangunan Nasional Veteran Jakarta, Jakarta, 12450, Indonesia.
Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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The Influence of Wet Scrubber on the Performance Efficiency of Heat Exchanger at Gasification Based Waste to Energy Power Plants Regina N. Lumbantoruan; Damora Rhakasywi; Fahrudin; Fazli Iqbal Pasha; Putty Fauthyda Z. H.; Firmansyah
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 4 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i4

Abstract

This research investigates the influence of wet scrubber installation on the performance efficiency of a shell and tube heat exchanger operating in a gasification-based Waste-to-Energy (WtE) power plant located in Surakarta, Indonesia. The study was conducted using a quantitative comparative approach over a four-month operational period, comparing system performance before and after the application of a wet scrubber. Three key parameters such as heat exchanger effectiveness, fouling factor, and pressure drop were analyzed to determine the impact of the gas cleaning system on thermal performance. The results show that the fouling factor decreased from 0.003 to 0.002 J/h·m²·°C, indicating cleaner heat transfer surfaces. Meanwhile, the pressure drop on the tube side reduced from 130.374 Pa to 46.134 Pa, reflecting smoother gas flow and lower mechanical resistance. Consequently, heat exchanger efficiency increased dramatically from 34% to 83%, signifying a substantial improvement in heat transfer capability. These findings confirm that the wet scrubber effectively minimizes tar and fine particulate deposits in syngas, improving heat transfer efficiency, operational stability, and equipment lifespan. The integration of wet scrubbers is therefore proven to be a vital enhancement for optimizing gas cleaning and energy conversion processes in Waste-to-Energy systems.
Experimental Investigation of the Municipal Solid Waste Characteristics for a Gasification Based Waste-to-Energy Power Plants Fazli Iqbal Pasha; Damora Rhakasywi; Nicky Yongkimandalan; Regina N. Lumbantoruan; Z. H. Putty Fauthyda; F. Firmansyah; Anisa Rahmah Kusuma; Rizki Apriza
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 4 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i4

Abstract

This study experimentally characterizes Municipal Solid Waste (MSW) feedstock to assess its suitability for gasification-based Waste-to-Energy (WtE) systems. Ten samples from different urban collection sites underwent thorough analysis using standardized ultimate and proximate methods, alongside bomb calorimetry on a dry basis, which helped to ensure the results accuracy. A strong positive correlation was observed between carbon and hydrogen content and gross calorific value, while oxygen, nitrogen, sulphur, and ash content exhibited a negative correlation with calorific potential. Notably, plastics and complex waste yielded the highest gross calorific values, around 30,000 kJ/kg and 31,600 kJ/kg, respectively, while high-ash content fractions recorded the lowest values at about 6,600 kJ/kg. The presence of volatile matter and fixed carbon positively impacts energy release, whereas ash dilutes fuel quality and increases heat absorption during combustion. The study suggests that pretreatment strategies, such as moisture reduction, ash fraction removal, and selective sorting for hydrocarbon-rich materials, effectively enhance fuel quality for gasification and reduce nitrogen and sulphur emission risks. The data reveal significant variability among different waste fractions, indicating that effective feedstock management and reactor design must address compositional heterogeneity to ensure reliable gasification performance.
Co-Authors Anisa Rahmah Kusuma F. Firmansyah Fahrudin Fazli Iqbal Pasha Firmansyah Nicky Yongkimandalan Putty Fauthyda Z. H. Regina N. Lumbantoruan Rizki Apriza Z. H. Putty Fauthyda