Search Results - subject:"Numerical Model"

Efficiency losses in milk marketing boards – the importance of exports

Brunstad, Rolf Jens; Gaasland, Ivar - Institutt for Økonomi, Universitetet i Bergen - 2003

are excluded from the MMB arrangement (Canada). We find Norway to be the only example. Using a numerical model of the …

Persistent link: https://www.econbiz.de/10008914351

In-stream energy converters in a river – Effects on upstream hydropower station

Lalander, Emilia; Leijon, Mats - In: Renewable Energy 36 (2011) 1, pp. 399-404

water level in a river are studied. This has been done both with an analytical model and with a numerical model. The … the total head drop. The numerical model was used to evaluate these results. The model used was the 3D numerical model …

Persistent link: https://www.econbiz.de/10010805163

Choosing the site for the first wave farm in a region: A case study in the Galician Southwest (Spain)

Iglesias, G.; Carballo, R. - In: Energy 36 (2011) 9, pp. 5525-5531

Where should the first wave farm in a region be installed? The nearshore area with the largest resource is the prime candidate. But how should this area be determined? Wave resource analyses typically consider a small number of wave patterns. Does the number of wave patterns influence the...

Persistent link: https://www.econbiz.de/10010810081

A numerical model and comparative investigation of a thermoelectric generator with multi-irreversibilities

Meng, Fankai; Chen, Lingen; Sun, Fengrui - In: Energy 36 (2011) 5, pp. 3513-3522

Taking into account inner and external multi-irreversibilities, a complete numerical model of commercial thermoelectric … resistance of the conducting strips, and the multiform external thermal resistances. Based on the numerical model, the … numerical model and calculation method can be applied to the performance prediction and optimization of thermoelectric …

Persistent link: https://www.econbiz.de/10011055051

Wave resource in El Hierro—an island towards energy self-sufficiency

Iglesias, G.; Carballo, R. - In: Renewable Energy 36 (2011) 2, pp. 689-698

The island of El Hierro (Spain), a UNESCO Biosphere Reserve in the Atlantic Ocean, aims to become the first 100% renewable energy island in the world. With a €54 million wind project already under way, the present research looks at the island’s wave resource using a 44-year hindcast dataset...

Persistent link: https://www.econbiz.de/10011046004

Hydrodynamic impact of a tidal barrage in the Severn Estuary, UK

Xia, Junqiang; Falconer, Roger A.; Lin, Binliang - In: Renewable Energy 35 (2010) 7, pp. 1455-1468

the Severn Estuary using a numerical model. A two-dimensional hydrodynamic model based on an unstructured triangular mesh …

Persistent link: https://www.econbiz.de/10010806514

Numerical model for predicting thermodynamic cycle and thermal efficiency of a beta-type Stirling engine with rhombic-drive mechanism

Cheng, Chin-Hsiang; Yu, Ying-Ju - In: Renewable Energy 35 (2010) 11, pp. 2590-2601

This study is aimed at development of a numerical model for a beta-type Stirling engine with rhombic-drive mechanism …

Persistent link: https://www.econbiz.de/10010806838

Numerical model and investigations of the externally heated valve Joule engine

Wojewoda, Jerzy; Kazimierski, Zbyszko - In: Energy 35 (2010) 5, pp. 2099-2108

The mineral fuels used recently, i.e., oil and gas, will be soon exploited out. This paper presents an idea of the engine where any fuel or solar heat can be used as a source of energy. The proposed model is an externally heated, 2-stroke, valve engine (EHVE). This is a piston-type engine,...

Persistent link: https://www.econbiz.de/10010808342

Wave power for La Isla Bonita

Iglesias, G.; Carballo, R. - In: Energy 35 (2010) 12, pp. 5013-5021

The island of La Palma (Spain), dubbed La Isla Bonita for its beauty, is a UNESCO Biosphere Reserve in the Atlantic Ocean. The island’s authorities are aiming for energy self-sufficiency based on wave energy and other renewables. In this research its wave resource is investigated using a...

Persistent link: https://www.econbiz.de/10011055526

Offshore and inshore wave energy assessment: Asturias (N Spain)

Iglesias, G.; Carballo, R. - In: Energy 35 (2010) 5, pp. 1964-1972

The offshore and inshore wave energy resource in Asturias (N Spain) is studied using wave buoy data and a hindcast dataset spanning 44 years (1958–2001). Offshore average wave power and annual wave energy values are found to exceed 30 kW/m and 250 MWh/m, respectively, at 7 of the 11 study...

Persistent link: https://www.econbiz.de/10011056064