Performance enhancement of up-flow anaerobic sludge blanket reactor for psychrophilic temperature during the dry season: Kality wastewater treatment plant DOI Creative Commons
Johnny Girma,

Asie Kemal,

Agizew Nigussie

и другие.

Heliyon, Год журнала: 2023, Номер 9(9), С. e19781 - e19781

Опубликована: Сен. 1, 2023

The main purpose of wastewater treatment plant (WWTP) is to reduce organic and inorganic pollutants meet standards. But WWTPs employing up flow anaerobic sludge blanket (UASB) reactors under psychrophilic temperature are currently removing about 55% chemical oxygen demand (COD) 70% total dissolved solids (TSS). research was done increase the efficiencies UASB reactor working conditions through optimization operational parameters like temperature, loading rate (OLR), pH hydraulic retention time (HRT). Experimentation carried out in a 0.0486 m3 square-shaped pilot-scale reactor. Experimental design response surface method (RSM) for performance enhancement five levels central composite (CCD) used. optimized obtained from CCD-RSM were as follows: 21.58 °C, OLR 2.99 kg COD/m3.d, HRT 4.37hrs 6.3. Using parameters, tests yielded 92.70%, 99.06%, 94.50% COD, TSS, volatile suspended solid (VSS) respectively. outlet concentrations alkalinity, fatty acids (VFA), found be lower than inlet concentrations. alkalinity system accepts hydrogen ion released by taken over methanogensis maintain pH. concentration sulfate increasing due inhabitation sulfur-reducing bacteria an condition VFA at less 7.8.This process favors production CH4 H2S gas. In general, there high likelihood improving operating optimizing parameters.

Язык: Английский

Experimental assessment and optimization of the performance of a biodiesel engine using response surface methodology DOI Creative Commons

Prasheet Mishra,

Taraprasad Mohapatra, Sudhansu S. Sahoo

и другие.

Energy Sustainability and Society, Год журнала: 2024, Номер 14(1)

Опубликована: Июнь 5, 2024

Abstract Background Biodiesel is a renewable and ecofriendly fuel for internal combustion engines. However, standards need to be adapted efficiency commercial use. This paper deals with novel process of its production using purification step that counters the high costs experimental analysis multiresponse optimization. Methods Soybean oil was chosen as biodiesel 5%, 10%, 15% blend common diesel experimentally tested in variable compression ratio ignition engine. The blended run engine without any modification setup, which also solves most operational problems. functional relationship between input parameters performance characteristics evaluated by statistical response surface methodology Box–Behnken design model, generates experiment resulting an optimum reduces overall cost investigation. Uncertainty done minimize gap results considering errors each piece equipment. Validation carried out. Results variance used measure acceptability model competency predict output performance. value are obtained 4.5 kg load, 18, B05 blend, maximum brake power 3 kW, minimum consumption emissions CO NO x , 0.39 kg/kWh, 0.01%, 50 ppm. Conclusions Cost reveals produced from transesterification reasonable compared conventional process. It environmentally more sustainable, cannot ignored. technique can future research cost-effective fields such biofuels waste, explored.

Язык: Английский

Процитировано

4

Experimental and Statistical Assessment for Hydrogen-Powered Dual-fuel Diesel Engine Using a Novel Biodiesel Blend at Variable Injection Pressure DOI Creative Commons
Akshay Jain, Bhaskor Jyoti Bora, Rakesh Kumar

и другие.

International Journal of Thermofluids, Год журнала: 2024, Номер 24, С. 100955 - 100955

Опубликована: Ноя. 1, 2024

Язык: Английский

Процитировано

4

Determination of Optimum Operating Parameters in a Non-Road Diesel Engine Fueled with 1-Heptanol/Biodiesel at Different Injection Pressures and Advances DOI Creative Commons
Mustafa Kemal Balki

Energies, Год журнала: 2024, Номер 17(7), С. 1588 - 1588

Опубликована: Март 26, 2024

It is important to reduce the negative environmental effects of non-road diesel engines, which are increasingly used in many facilities and machines, without loss performance. Biodiesel as an alternative fossil-based fuels eliminate these ensure sustainability energy. This study focused on optimization operating parameters a engine with waste frying oil biodiesel mixture at 50% load. Pure biodiesel, 1-heptanol, different injection advances pressures were determined input for optimization. The tests designed according Taguchi’s L16 orthogonal array. ANOVA analysis was performed determine importance performance exhaust emissions. Optimization made based highest brake thermal efficiency (BTE) addition lowest values brake-specific fuel consumption (BSFC), hydrocarbon (BSHC), nitrogen oxide (BSNOx) smoke In carried out response surface methodology (RSM), optimum combinations obtain best characteristics 17.27% 226-bar pressure, 27 CAD advance B75. These results verified by experiments within recommended error range.

Язык: Английский

Процитировано

3

Comparative thermal assessment and emission analysis of various green biodiesel from novel feedstocks for CI engines: a sustainable approach towards emission reduction DOI
Aman Singh Rajpoot, Tushar Choudhary,

H. Chelladurai

и другие.

Environmental Science and Pollution Research, Год журнала: 2024, Номер 31(27), С. 39650 - 39662

Опубликована: Июнь 3, 2024

Язык: Английский

Процитировано

3

Investigation into the Ideal Concoction for Performance and Emissions Enhancement of Jatropha Biodiesel-Diesel with CuO Nanoparticles Using Response Surface Methodology DOI Creative Commons

Elumalai Ramachandran,

Ravi Krishnaiah,

P. V. Elumalai

и другие.

ACS Omega, Год журнала: 2023, Номер 8(42), С. 39067 - 39079

Опубликована: Окт. 10, 2023

The present work covers the preparation of biodiesel from jatropha oil through transesterification process followed by its characterization, and furthermore, performance emission analyses were done in terms blending with fossil diesel CuO nanoparticles. Jatropha blends (B10, B20, B30) chosen for this preliminary investigation based on observation that B20 outperformed other blends. Next stage copper oxide (CuO) nanoparticle concentrations 25, 50, 75, 50 ppm are used to examine characteristics a constant speed single cylinder, 4-stroke, 3.5 kW compression ignition (CI) engine. Finally, response surface methodology (RSM) was utilized determine optimal concentration B20. results revealed blend 80 nanoparticles had highest desirability (0.9732), developed RSM model able predict engine responses mean absolute percentage error (MAPE) 3.113%. A confirmation test an prediction less than 5% verified model's adequacy. When comparing optimized B20CuO80 diesel, brake specific energy consumption (BSEC) increased 8.49% thermal efficiency (BTE) lowered 3.34%. Hydrocarbon (HC), carbon monoxide (CO), dioxide (CO2), nitrogen (NOx), smoke emissions reduced 3.66% 2.88%, 4.78%, 22.9%, 20.54%, respectively, at 80% load. As result, may be current engines without modification.

Язык: Английский

Процитировано

7

Estimation of the potential of Nahar biodiesel run diesel engine at varying fuel injection pressures and engine loads through exergy approach DOI Creative Commons
Akshay Jain, Bhaskor Jyoti Bora, Rakesh Kumar

и другие.

Alexandria Engineering Journal, Год журнала: 2023, Номер 84, С. 262 - 274

Опубликована: Ноя. 10, 2023

Power production, as well transportation, are two sectors mainly contributing to global warming and pollution. These effects can be lessened through the use of biofuels. However, biofuels plagued due low calorific value high viscosity compared diesel. this overcome by proper adjustment operating parameters (Compression ratio, Fuel injection timing, Pressure, Engine load). The present study tries unravel influence fuel pressure on performance, combustion, emission, exergy analysis Nahar biodiesel run diesel engine. Five (200 bar, 220 240 260 280 bar) five engine loading conditions (20 %, 40 60 80 100 %) at timing 23° BTDC compression ratio 17.5 considered. results indicate that improve with higher pressure. maximum BTEs found 24.86 27 28.11 29.22 31.13 % in mode FIPs 200 respectively comparison 27.76 for standard settings (FIP = CR 17.5, IT BTDC) load. Furthermore, effect addition nanoparticles variation other such may enhance performance emissions

Язык: Английский

Процитировано

6

Biogas production potential of aquatic weeds as the next-generation feedstock for Bioenergy production: A Review DOI Creative Commons
Apurba Koley,

Purbali Mukhopadhyay,

N. N. Das Gupta

и другие.

Research Square (Research Square), Год журнала: 2023, Номер unknown

Опубликована: Июнь 12, 2023

Abstract Aquatic weeds have exceptionally high reproduction rates, are rich in cellulose and hemicellulose, contain a negligible amount of lignin, making them an ideal crop for the next generation biofuels. Previously reported studies proposed that water hyacinth, lettuce, common duckweeds, spinach can be managed or utilized using different advanced techniques, while anaerobic digestion is one feasible cost-effective techniques to manage these biowastes. The present study was carried out investigate potential utilizing four aquatic weed species (water spinach) as substrates order produce biogas. hemicellulose content, coupled with low lignin make candidates this purpose. evaluated feasibility management method weeds, which often considered invasive difficult control. provides overview characteristics strategies relation biogas production, possible future developments field.

Язык: Английский

Процитировано

1

Enhancement of combustion characteristics of waste alcohol using n-heptane through RSM in an HCCI engine DOI

Huseyin Orhun GURSOY,

Hamit Solmaz, Tolga Kocakulak

и другие.

Energy, Год журнала: 2024, Номер unknown, С. 133838 - 133838

Опубликована: Ноя. 1, 2024

Язык: Английский

Процитировано

0

Performance enhancement of up-flow anaerobic sludge blanket reactor for psychrophilic temperature during the dry season: Kality wastewater treatment plant DOI Creative Commons
Johnny Girma,

Asie Kemal,

Agizew Nigussie

и другие.

Heliyon, Год журнала: 2023, Номер 9(9), С. e19781 - e19781

Опубликована: Сен. 1, 2023

The main purpose of wastewater treatment plant (WWTP) is to reduce organic and inorganic pollutants meet standards. But WWTPs employing up flow anaerobic sludge blanket (UASB) reactors under psychrophilic temperature are currently removing about 55% chemical oxygen demand (COD) 70% total dissolved solids (TSS). research was done increase the efficiencies UASB reactor working conditions through optimization operational parameters like temperature, loading rate (OLR), pH hydraulic retention time (HRT). Experimentation carried out in a 0.0486 m3 square-shaped pilot-scale reactor. Experimental design response surface method (RSM) for performance enhancement five levels central composite (CCD) used. optimized obtained from CCD-RSM were as follows: 21.58 °C, OLR 2.99 kg COD/m3.d, HRT 4.37hrs 6.3. Using parameters, tests yielded 92.70%, 99.06%, 94.50% COD, TSS, volatile suspended solid (VSS) respectively. outlet concentrations alkalinity, fatty acids (VFA), found be lower than inlet concentrations. alkalinity system accepts hydrogen ion released by taken over methanogensis maintain pH. concentration sulfate increasing due inhabitation sulfur-reducing bacteria an condition VFA at less 7.8.This process favors production CH4 H2S gas. In general, there high likelihood improving operating optimizing parameters.

Язык: Английский

Процитировано

0