energy efficiency law Articles
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Energy efficiency highlights in transformation period and updating of energy policy of Poland up to 2005
This paper presents some important macroeconomic components characterising the energy economy in Poland during the transition period 1995-2000. Evaluation of primary energy use in Poland has been made in two separate energy flows firstly, energy in the production sector and secondly, energy consumed by households. The comparison of energy productivity in Poland and the EU in 2000 shows 50% of ...
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Energetic and exergetic efficiency analysis of an indirect fired air-turbine combined heat and power system
The aim of this paper is to analyse the performance of an intercooled reheat regenerative indirect fired air turbine based combined heat and power system using the first and second law of thermodynamics. The energetic and exergetic efficiencies have been defined. The effects of overall pressure ratio, cycle temperature ratio, pressure losses and process steam pressure on the energetic and ...
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Thermodynamic analyses of closed thermochemical energy storages
Thermal Energy Storage (TES) is an important technology for achieving more efficient and environmentally acceptable energy systems. Where space is limited, thermochemical TES has the highest potential to achieve compact thermal energy storage. Here, a general closed thermochemical TES is investigated using energy and exergy analyses. An illustrative example is presented, and the energy and exergy ...
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Energy and exergy analyses of a new combined cycle using carbon dioxide as working fluid
In this study, a new combined cycle based on the Brayton power cycle and the ejector expansion refrigeration cycle is proposed. The proposed cycle can provide simultaneous heating, cooling and power. And be driven by low temperature heat sources. The suggested cycle can save energy around 46% in comparison with a system producing cooling, power and hot water separately. Moreover, the second law ...
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