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Biodiesel production optimization using γAl2O3 based catalysts

Sánchez, Marcos; Navas, Marisa; Ruggera, José F.; … - In: Energy 73 (2014) C, pp. 661-669

The transesterification reaction of soybean oil with methanol is studied with different γAl2O3 heterogeneous catalysts. The catalysts used are K-γAl2O3, Na-γAl2O3, Li-γAl2O3, Ca-γAl2O3 and Ba-γAl2O3 both 5% and 10% in metal content are prepared by impregnation. The first study concluded...

Persistent link: https://www.econbiz.de/10011056045

Thermal and thermohydraulic performance evaluation of a novel type double pass packed bed solar air heater under external recycle using an analytical and RSM (response surface meth...

Singh, Satyender; Dhiman, Prashant - In: Energy 72 (2014) C, pp. 344-359

In the present study, an analytical and RSM (response surface methodology) combined approach has been applied to … and mass transfer involved. Furthermore, RSM is then applied for developing mathematical models based on simulation … results obtained from analytical study. The effect of parameters and their interactions on the responses are studied using RSM …

Persistent link: https://www.econbiz.de/10010809784

Multi-criteria optimization model to investigate the energy waste of off-road vehicles utilizing soil bin facility

Taghavifar, Hamid; Mardani, Aref; Karim-Maslak, Haleh - In: Energy 73 (2014) C, pp. 762-770

statistical-mathematical modeling approach of RSM (response surface methodology) were assessed in the present investigation … investigation spearheads the practice of DEA and RSM approaches in the optimization of energy waste of off-road vehicles. The … findings revealed that RSM with optimized value of 5.7175 J, which corresponds to wheel load of 1 kN, velocity of 0.7 m/s, and …

Persistent link: https://www.econbiz.de/10011055756

A hybrid technology combining heat pump and thermally coupled distillation sequence for retrofit and debottlenecking

Long, Nguyen Van Duc; Lee, Moonyong - In: Energy 81 (2015) C, pp. 103-110

Increasing the capacity of an existing distillation process has been a major focus of the chemical process industry. On the other hand, entrainment flooding can occur as a result, which can create a bottleneck in the distillation process. This paper reports the results of a techno-economic...

Persistent link: https://www.econbiz.de/10011209543

Downdraft gasification of corn straw as a non-woody biomass: Effects of operating conditions on chlorides distribution

Gai, Chao; Dong, Yuping; Zhang, Tonghui - In: Energy 71 (2014) C, pp. 638-644

(RSM). The results indicate that ER and SB have a major effect on the distribution of gaseous chlorides, while ER and PS …

Persistent link: https://www.econbiz.de/10010808600

The effect of wind on the optimal design and performance of a modular air-cooled condenser for a concentrated solar power plant

Butler, C.; Grimes, R. - In: Energy 68 (2014) C, pp. 886-895

Air-cooled condensers overcome one of the main issues facing the construction of concentrated solar power plants by replacing water with air as the medium for cooling of the steam turbine waste heat. The recent development of modular air-cooled condensers as an improvement on conventional...

Persistent link: https://www.econbiz.de/10010811319

The effects of using biodiesel on CI (compression ignition) engine and optimization of its production by using response surface methodology

Abuhabaya, Abdullah; Fieldhouse, John; Brown, David - In: Energy 59 (2013) C, pp. 56-62

concentration, reaction time, reaction temperature, and rate of mixing to maximize biodiesel yield. The technique used was the RSM …

Persistent link: https://www.econbiz.de/10010811898

Zn,Al-catalysts for heterogeneous biodiesel production: Basicity and process optimization

Veiga, Paula Moraes; Luna, Aderval Severino; de … - In: Energy 75 (2014) C, pp. 453-462

the catalyst and showed a good correlation with basic site density determined by TPD-CO2. The RSM (response surface … loading that maximize fatty acid methyl esters yield. The best experimental conditions indicated by RSM were reaction …

Persistent link: https://www.econbiz.de/10011053365

Optimizing the conditions for the microwave-assisted direct liquefaction of Ulva prolifera for bio-oil production using response surface methodology

Liu, Junhai; Zhuang, Yingbin; Li, Yan; Chen, Limei; … - In: Energy 60 (2013) C, pp. 69-76

acid (H2SO4) as a catalyst. Response Surface Methodology (RSM) based on central composite rotatable design (CCRD) was …

Persistent link: https://www.econbiz.de/10011053448

Analysis of the polymer composite bipolar plate properties on the performance of PEMFC (polymer electrolyte membrane fuel cells) by RSM (response surface methodology)

San, Boyaci; Gül, Fatma; Isik-Gulsac, Isil; Okur, Osman - In: Energy 55 (2013) C, pp. 1067-1075

rate on power density of PEMFC are analyzed by RSM (response surface methodology) in this study. Fuel cell performance …

Persistent link: https://www.econbiz.de/10011054079