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Generation expansion planning (GEP) – A long-term approach using system dynamics and genetic algorithms (GAs)

Pereira, Adelino J.C.; Saraiva, João Tomé - In: Energy 36 (2011) 8, pp. 5180-5199

This paper presents a model to solve the Generation Expansion Planning (GEP), problem in competitive electricity markets. The developed approach recognizes the presence of several generation agents aiming at maximizing their profits and that the planning environment is influenced by...

Persistent link: https://www.econbiz.de/10010809315

Effects of electric vehicles on power systems in Northern Europe

Hedegaard, Karsten; Ravn, Hans; Juul, Nina; Meibom, Peter - In: Energy 48 (2012) 1, pp. 356-368

, EVs can facilitate significantly increased wind power investments already at low vehicle fleet shares. Moreover, due to …

Persistent link: https://www.econbiz.de/10010810192

The World Gas Model

Egging, Ruud; Holz, Franziska; Gabriel, Steven A. - In: Energy 35 (2010) 10, pp. 4016-4029

We provide the description, mathematical formulation and illustrative results of the World Gas Model, a multi-period complementarity model for the global natural gas market with explicit consideration of market power in the upstream market. Market players include producers, traders, pipeline and...

Persistent link: https://www.econbiz.de/10010810888

eTransport: Investment planning in energy supply systems with multiple energy carriers

Bakken, Bjorn H.; Skjelbred, Hans I.; Wolfgang, Ove - In: Energy 32 (2007) 9, pp. 1676-1689

(investments, operation and emissions) of meeting predefined energy demands of electricity, gas, space heating and tap water …

Persistent link: https://www.econbiz.de/10010811320

Using compressor discharge air bypass to enhance power generation of a steam-injected gas turbine for combined heat and power

Kang, Do Won; Jang, Hyuck Jun; Kim, Tong Seop - In: Energy 76 (2014) C, pp. 390-399

In gas turbine combined heat and power systems, steam injection is a good way to cope with seasonal variations in electricity and heat demands. However, even though thermal energy demand decreases considerably in cooling seasons, the surplus exhaust heat cannot be fully utilized for steam...

Persistent link: https://www.econbiz.de/10010939821

Numerical investigation of impeller trimming effect on performance of an axial flow fan

Li, Chunxi; Li, Xinying; Li, Pengmin; Ye, Xuemin - In: Energy 75 (2014) C, pp. 534-548

To study the performance variations of an axial fan after impeller trimming, numerical simulations are executed under …. The effects of trimming quantity and tip clearance on flow field and performance of the axial fan are investigated, and … before and after impeller trimming. The simulated results show that the performance curves after impeller trimming tend to …

Persistent link: https://www.econbiz.de/10010931382

Combustion, performance and emission characteristics of direct injection diesel engine fueled by Jatropha hydrogen peroxide emulsion

Nguyen, Kim-Bao; Dan, Tomohisa; Asano, Ichiro - In: Energy 74 (2014) C, pp. 301-308

Recently, Jatropha, a fast growing tropical plant, has caught the attention of researchers because the oil produced from Jatropha is a non-edible. However, worse emissions, when using raw Jatropha oil in diesel engines, have been reported in the literature due to its higher viscosity and lower...

Persistent link: https://www.econbiz.de/10010931391

Numerical investigation of blade tip grooving effect on performance and dynamics of an axial flow fan

Ye, Xuemin; Li, Pengmin; Li, Chunxi; Ding, Xueliang - In: Energy 82 (2015) C, pp. 556-569

Appropriate changes to the blade tip structure can effectively improve fan performance. The performance of the OB-84 …

Persistent link: https://www.econbiz.de/10011209474

Thermoelectric mini cooler coupled with micro thermosiphon for CPU cooling system

Liu, Di; Zhao, Fu-Yun; Yang, Hong-Xing; Tang, Guang-Fa - In: Energy 83 (2015) C, pp. 29-36

between the maximal COP (Coefficient of Performance) and Qc with the figure of merit. Full-scale experiments have been … number on the performance of the cooling system. Experimental results indicated that the cooling production increases with … performance of this cooling system could be enhanced when the total dimension of thermoelectric module matched well with the …

Persistent link: https://www.econbiz.de/10011264368

Artificial neural network model to predict the diesel electric generator performance and exhaust emissions

Ganesan, P.; Rajakarunakaran, S.; Thirugnanasambandam, M.; … - In: Energy 83 (2015) C, pp. 115-124

that the ANN models are reliable tools for the prediction of the performance and exhaust emissions of DGs. …

Persistent link: https://www.econbiz.de/10011264370