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Numerical and experimental studies on updraft gasifier HTAG
Ismail, T.M.; El-Salam, M. Abd - In: Renewable Energy 78 (2015) C, pp. 484-497
simulating the gasification/combustion process of biomass within the gasifier. …
Persistent link: https://www.econbiz.de/10011208696
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Biomass supply chain design and analysis: Basis, overview, modeling, challenges, and future
Sharma, B.; Ingalls, R.G.; Jones, C.L.; Khanchi, A. - In: Renewable and Sustainable Energy Reviews 24 (2013) C, pp. 608-627
lignocellulosic biomass is crucial for success of second generation biofuels. This paper systematically describes energy needs, energy … targets, biofuel feedstocks, conversion processes, and finally provides a comprehensive review of Biomass Supply Chain (BSC … understanding biomass feedstocks and biofuel production as well as detailed analysis of the BSC modeling and design. …
Persistent link: https://www.econbiz.de/10010665977
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Micro-watershed level population based fuelwood consumption dynamics: Implications of seasonal vs. annual models for sustainable energy resource planning
Khuman, Y.S.C.; Pandey, Ranjita; Rao, K.S. - In: Renewable and Sustainable Energy Reviews 16 (2012) 8, pp. 6142-6148
Most developing countries such as India use biomass as a primary source of energy especially in domestic sectors in the … rural area. The increasing population exerts more pressure on the biomass resource thereby initiating energy crisis in the … to remoteness. It is also seen that the use of traditional biomass as a source of energy will improve the livelihood …
Persistent link: https://www.econbiz.de/10010580736
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Prediction by mathematical modeling of the behavior of an internal combustion engine to be fed with gas from biomass, in comparison to the same engine fueled with gasoline or metha...
Centeno González, Felipe O.; Mahkamov, Khamid; Silva … - In: Renewable Energy 60 (2013) C, pp. 427-432
The performance of a spark ignition internal combustion engine (SI ICE) fueled with biomass gas (woodgas) is evaluated …
Persistent link: https://www.econbiz.de/10011045576
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Drying kinetics of olive stone: A valuable source of biomass obtained in the olive oil extraction
Gómez-de la Cruz, Francisco J.; Casanova-Peláez, Pedro J. - In: Energy 75 (2014) C, pp. 146-152
Olive stone is a by-product of the olive grove especially suitable for thermal purpose in industrial, residential and home. To avoid maintenance problems in boilers and to increase the combustion efficiency, olive stone needs to be dried to moisture equilibrium, about 8% (wet basis). The thin...
Persistent link: https://www.econbiz.de/10011054264
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A computationally efficient particle submodel for CFD-simulations of fixed-bed conversion
Ström, Henrik; Thunman, Henrik - In: Applied Energy 112 (2013) C, pp. 808-817
performance observed in applications of fixed-bed conversion of biomass and waste is far from optimal. Mathematical modeling using …
Persistent link: https://www.econbiz.de/10011041325
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A modified NSGA-II solution for a new multi-objective hub maximal covering problem under uncertain shipments
Zade, Amir Ebrahimi; Sadegheih, Ahmad; Lotfi, Mohammad Mehdi - In: Journal of Industrial Engineering International 10 (2014), pp. 185-197
Hubs are centers for collection, rearrangement,and redistribution of commodities in transportation networks. In this paper, non-linear multi-objective formulations for single and multiple allocation hub maximal covering problems as well as the linearized versions are proposed. The formulations...
Persistent link: https://www.econbiz.de/10011640824
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Sexual Volatility and the Spread of HIV.
Romero-Severson, Ethan Obie - 2011
The stability of sexual risk behavior over time is a common assumption in models of HIV transmission. In this thesis I show that this assumption does not hold in a population of gay men at risk of HIV infection and that the violation of this assumption has major implications for our...
Persistent link: https://www.econbiz.de/10009476661
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Two aspects of the Simplex Model: goodness of Fit to Linear Growth Curve Structures and the Analysis of Mean Trends
Molenaar, P.C.M.; Dolan, C.V.; Mandys, F. - 1994
Considers the analysis of longitudinal data by means of the autogressive or simplex model. The finding by D. Rogosa and J. B. Willett that the quasi-Markov simplex model fits a linear growth curve covariance structure is investigated. Under various circumstances the quasi-Markov simplex model is...
Persistent link: https://www.econbiz.de/10009460127
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Bi-level modeling of district heating systems with prosumers
Penkovskii, Andrey; Stennikov, Valery; Kravets, Angelica - In: Energy Reports 6 (2020) 2, pp. 89-95
The paper deals with the actual problem of the functioning and development of district heating systems in the framework of the transition to intelligent energy, in which the active consumers (prosumers) holds the key place. The paper proposes an optimization mathematical model for management the...
Persistent link: https://www.econbiz.de/10012652224