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The optimal consumption function in a Brownian model of accumulation part b: existence of solutions of boundary value problems

Foldes, Lucien - London School of Economics (LSE) - 2014

In Part A of the present study, subtitled 'The Consumption Function as Solution of a Boundary Value Problem' Discussion Paper No. TE/96/297, STICERD, London School of Economics, we formulated a Brownian model of accumulation and derived sufficient conditions for optimality of a plan generated by...

Persistent link: https://www.econbiz.de/10011170087

On intermittent demand model optimisation and selection

Kourentzes, Nikolaos - In: International Journal of Production Economics 156 (2014) C, pp. 180-190

valid optimisation methodology is lacking. Growing evidence in the literature points against the use of conventional … metrics, along with two novel ones for parameter optimisation for intermittent demand methods. The proposed metrics are found …

Persistent link: https://www.econbiz.de/10011043340

A GRASP-VNS algorithm for optimal wind-turbine placement in wind farms

Yin, Peng-Yeng; Wang, Tai-Yuan - In: Renewable Energy 48 (2012) C, pp. 489-498

The wake effect is the key factor affecting the low efficiency of wind power production. It is very important to predict the relationship between the cost and the produced power for various wind-turbine placements under various wind speeds and directions. This paper proposes a GRASP-VNS...

Persistent link: https://www.econbiz.de/10011044166

Sustainable energy system – A case study from Chile

Gebremedhin, A.; Karlsson, B.; Björnfot, K. - In: Renewable Energy 34 (2009) 5, pp. 1241-1244

This paper presents some of the results of a power system analysis for Chile. The two major Chilean electric systems are roughly modelled and optimized using a linear programming method with the option to integrate renewable energy sources like wind power, solar power, mini-hydropower and...

Persistent link: https://www.econbiz.de/10011044339

Optimization of mechanical pre-treatment of Laminariaceae spp. biomass-derived biogas

Tedesco, S.; Marrero Barroso, T.; Olabi, A.G. - In: Renewable Energy 62 (2014) C, pp. 527-534

Macroalgae have not met their full potential to date as biomass for the production of energy. One reason is the high cost associated with the pretreatment which breaks the biomass's crystalline structure and better exposes the fermentable sugars to anaerobes. In the attempt to overcome this...

Persistent link: https://www.econbiz.de/10011045712

Analysis of the imbalance price scheme in the Spanish electricity market: A wind power test case

Bueno-Lorenzo, Miriam; Moreno, M. Ángeles; Usaola, Julio - In: Energy Policy 62 (2013) C, pp. 1010-1019

Spanish electricity market using a stochastic optimisation strategy. For this purpose, the uncertainty of the variables is …

Persistent link: https://www.econbiz.de/10011047220

Optimal transportation of logs and location of quay facilities in coastal regions of Norway

Nørstebø, Vibeke S.; Johansen, Ulf - In: Forest Policy and Economics 26 (2013) C, pp. 71-81

transportation system. An optimisation model is developed that finds the most efficient way to transport logs from supply to demand …

Persistent link: https://www.econbiz.de/10011048062

Methods to optimise the design and management of biomass-for-bioenergy supply chains: A review

De Meyer, Annelies; Cattrysse, Dirk; Rasinmäki, Jussi; … - In: Renewable and Sustainable Energy Reviews 31 (2014) C, pp. 657-670

Biomass supply chain optimisation is essential to overcome barriers and uncertainties that may inhibit the development … of a sustainable and competitive bioenergy market. The number of research papers presenting optimisation models in the … field of bioenergy systems rises exponentially. This paper gives an overview of the optimisation methods and models …

Persistent link: https://www.econbiz.de/10011049481

Passive robust fault detection using fuzzy parity equations

Puig, Vicenç; Quevedo, Joseba - In: Mathematics and Computers in Simulation (MATCOM) 60 (2002) 3, pp. 193-207

In this paper, a new approach for robust fault detection based on fuzzy parity equations is presented. The problem of robustness is handled using a passive approach based on generating a fuzzy adaptive threshold. The fuzzy adaptive threshold will be generated using fuzzy parity equations. Fuzzy...

Persistent link: https://www.econbiz.de/10011050317

Oxy-co-gasification of coal and biomass in an integrated gasification combined cycle (IGCC) power plant

Valero, Antonio; Usón, Sergio - In: Energy 31 (2006) 10, pp. 1643-1655

Oxy-gasification, or oxygen-blown gasification, enables a clean and efficient use of coal and opens a promising way to CO2 capture. Moreover, oxy-co-gasification with biomass implies the use of a renewable resource and additional CO2 reduction. Proper gasifier operation is a key issue in both...

Persistent link: https://www.econbiz.de/10011053403