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Optimal integration of solar energy in a district heating network

Carpaneto, E.; Lazzeroni, P.; Repetto, M. - In: Renewable Energy 75 (2015) C, pp. 714-721

storage is often necessary for exploiting the renewable sources at their best. An optimisation procedure has been developed to … find the dispatching strategy for the different power sources present in the network. The optimisation procedure can be … optimal capacity of storage. After a brief description of the optimisation procedure and of its simulation modules, one test …

Persistent link: https://www.econbiz.de/10011116493

Analysis of the effect of global climate change on ground source heat pump systems in different climate categories

Kharseh, Mohamad; Altorkmany, Lobna; Al-Khawaja, Mohammed; … - In: Renewable Energy 78 (2015) C, pp. 219-225

Ground source heat pump (GSHP) systems exhibit high thermal performance. Consequently, they are increasingly used to heat and cool buildings. The thermal performance of GSHP systems strongly depends on the operation ground temperature and thermal quality of the building envelope (TQBE). The...

Persistent link: https://www.econbiz.de/10011208717

Dynamic modelling of biomass power plant using micro gas turbine

Barsali, S.; De Marco, A.; Giglioli, R.; Ludovici, G.; … - In: Renewable Energy 80 (2015) C, pp. 806-818

Biomass is becoming a more and more interesting option to replace conventional fossil fuels for heat and power generation. Small plants able to use solid biomass, collected in the plant neighborhoods, are having a growing diffusion: University of Pisa jointly with some local manufactures has...

Persistent link: https://www.econbiz.de/10011263752

The use of the planning system to encourage low carbon energy technologies in buildings

Day, A.R.; Ogumka, P.; Jones, P.G.; Dunsdon, A. - In: Renewable Energy 34 (2009) 9, pp. 2016-2021

This paper presents the key findings of a study conducted by London South Bank University for the Greater London Authority on the performance of the energy policies contained in the London Plan. These policies require developers to demonstrate how new developments within London will meet...

Persistent link: https://www.econbiz.de/10010806856

Contribution of wind power and CHP to exports from Western Denmark during 2000–2004

Mignard, D.; Harrison, G.P.; Pritchard, C.L. - In: Renewable Energy 32 (2007) 15, pp. 2516-2528

The experience of Denmark is used by the United Kingdom's anti-wind lobby to demonstrate that intermittency and inaccuracies in wind forecasting make wind power ineffective and expensive. A further assertion is that most of the power is ‘unwanted’ since up to 80% of it is exported. Here,...

Persistent link: https://www.econbiz.de/10010803781

Direct heat utilization of geothermal resources

Lund, John W. - In: Renewable Energy 10 (1997) 2, pp. 403-408

Direct utilization of geothermal energy consists of various forms for heating and cooling instead of converting the energy for electric power generation. The major areas of direct utilization are (1) swimming, bathing and balneology, (2) space heating and cooling including district heating, (3)...

Persistent link: https://www.econbiz.de/10010805668

Optimization of the exploitation system of a low enthalpy geothermal aquifer with zones of different transmissivities and temperatures

Tselepidou, K.; Katsifarakis, K.L. - In: Renewable Energy 35 (2010) 7, pp. 1408-1413

Market penetration of renewable energy sources, such as geothermal energy, could be promoted even by small cost reductions, achieved through improved development design. This paper deals with optimization of the exploitation system of a low enthalpy geothermal aquifer, by means of the method of...

Persistent link: https://www.econbiz.de/10010807016

Prospects for low energy buildings in Poland

Chwieduk, Dorota - In: Renewable Energy 16 (1999) 1, pp. 1196-1199

Polish economy is characterised by high energy intensity in all sectors. Energy used for heating purposes for municipal and co-operatives buildings is especially high. A lot must be done to reduce energy consumption. This paper presents energy conservation technologies that have started to be...

Persistent link: https://www.econbiz.de/10010807034

Heat exchanger optimization for geothermal district heating systems: A fuel saving approach

Dagdas, Ahmet - In: Renewable Energy 32 (2007) 6, pp. 1020-1032

One of the most commonly used heating devices in geothermal systems is the heat exchanger. The output conditions of heat exchangers are based on several parameters. The heat transfer area is one of the most important parameters for heat exchangers in terms of economics. Although there are a lot...

Persistent link: https://www.econbiz.de/10010804457

Performance and thermo-economic assessments of geothermal district heating system: A case study in Afyon, Turkey

Keçebaş, Ali - In: Renewable Energy 36 (2011) 1, pp. 77-83

In this study energy, exergy and exergoeconomic analysis of the Afyon geothermal district heating system (AGDHS) in Afyon, Turkey is performed through thermodynamic performances and thermo-economic assessments. In the analysis, actual system data are used to assess the district heating system...

Persistent link: https://www.econbiz.de/10011045069