Abstract The United Nations action plan Agenda 21 has represented a milestone toward Sustainable Development. On its 40th Chapter, it is introduced the requirement to dispose of an accurate and continuous collection information, essential for decision-making. Besides bridging data gap improving information availability, highlighted need sustainable development indicators, in order assess monito...

This article presents a novel and comprehensive approach for the thermoeconomic evaluation of subcritical supercritical isobutane cycles geothermal temperatures Tgeo = 100–200 °C. The are optimized with respect to maximum net power or minimum levelized cost electricity (LCOE). Cycle optimization is also included, using superheat temperature avoid turbine erosion, which usually neglected in lite...

Enerji verimliliği, küresel ısınma ve iklim değişikliği günümüzde üzerinde durulan en önemli konuların başında gelmektedir. Tüketilen enerjinin etkin verimli kullanımına ilişkin yeni tasarımlar yaparken de tasarımlarda kullanılacak yenilikçi teknolojiler ekonomi çevresel olumsuz etkilerin azaltılmasına katkı sağlayacaktır. Bu çalışmada; tamamen gaz yakıcı bir cihazla çalışan döküm sektöründe ku...

The aim of this work is to carry out a thermoeconomic analysis of a single and double-effect LiBr/H2O absorption refrigeration system. The methodology of functional analysis with negentropy is used. The exergetic cost of the main product, the cooling cost, was calculated as a function of the exergy of the heat source. Two cases were analyzed for each system: the first considers a direct-fired s...