Conversion of water hyacinth biomass to biofuel with TiO2 nanoparticle blending: Exergy and statistical analysis

IF 6.4 2区工程技术 Q1 THERMODYNAMICS Case Studies in Thermal Engineering Pub Date : 2025-03-01 Epub Date: 2025-01-29 DOI:10.1016/j.csite.2025.105771

Akshay Jain , Bhaskor Jyoti Bora , Rakesh Kumar , Prabhu Paramasivam , Natrayan Lakshmaiya , Praveen Kumar Kanti , Leliso Hobicho Dabelo

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Abstract

The lower calorific value of biodiesel results in lower efficiency compared to diesel mode. To address this issue, researchers have explored the use of nanoparticles to enhance the properties of biodiesel. In this study, nano-fuel with 150 ppm of TiO₂ nanoparticles in Water Hyacinth Biodiesel (WHB) was examined. The fuel injection pressure (FIP) of the engine is advanced for the nanofuel, and engine tests are conducted at various FIP (200 bar–280 bar) and engine loadings (20 %–100 % in five steps, 20 % increment after each step). The results showed FIP up to 260 bar resulting in increased exergetic and brake thermal efficiency (BTE) and decreased emissions of CO and HC for all engine loadings. The maximum reduction of 56.92 % and 36.4 % were observed for CO and HC at 260 bar FIP. Optimized values from the statistical analysis suggest that the input variables with 42.17 % of engine load and 276.29 bar of FIP result in optimum values of response variable such as BTE of 48.95 % for WHB-TNP blend. Therefore, it was concluded that the nanofuel of TiO₂ nanoparticles and WHB at a FIP of 260 bar works better than diesel mode for all engine loads.

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用TiO2纳米颗粒混合水葫芦生物质转化为生物燃料：能源和统计分析

与柴油相比，生物柴油的热值较低导致效率较低。为了解决这个问题，研究人员探索了使用纳米颗粒来提高生物柴油的性能。本研究以水葫芦生物柴油（WHB）为研究对象，研究了TiO2纳米颗粒含量为150 ppm的纳米燃料。提高了纳米燃料发动机的燃油喷射压力（FIP），并在不同的FIP （200bar ~ 280bar）和发动机负载（分5步20% ~ 100%，每步增加20%）下进行了发动机试验。结果表明，FIP高达260 bar，提高了所有发动机负载的火用和制动热效率（BTE），减少了CO和HC的排放。在260 bar的FIP下，CO和HC的最大还原率分别为56.92%和36.4%。统计分析的优化值表明，当输入变量为42.17%的发动机负荷和276.29 bar的FIP时，WHB-TNP混合燃料的最佳响应变量BTE为48.95%。综上所述，在260 bar的FIP下，TiO2纳米颗粒和WHB纳米燃料在所有发动机负载下都优于柴油模式。

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来源期刊

Case Studies in Thermal Engineering Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

8.60

自引率

11.80%

发文量

812

审稿时长

76 days

期刊介绍： Case Studies in Thermal Engineering provides a forum for the rapid publication of short, structured Case Studies in Thermal Engineering and related Short Communications. It provides an essential compendium of case studies for researchers and practitioners in the field of thermal engineering and others who are interested in aspects of thermal engineering cases that could affect other engineering processes. The journal not only publishes new and novel case studies, but also provides a forum for the publication of high quality descriptions of classic thermal engineering problems. The scope of the journal includes case studies of thermal engineering problems in components, devices and systems using existing experimental and numerical techniques in the areas of mechanical, aerospace, chemical, medical, thermal management for electronics, heat exchangers, regeneration, solar thermal energy, thermal storage, building energy conservation, and power generation. Case studies of thermal problems in other areas will also be considered.