Abstract The organic Rankine cycle (ORC) power plant is derived from a centrifugal chiller air conditioning system as an alternative to diesel replacement modular due its low cost compared ORC’s manufacture. Biomass used heat source for the utilize vast amount of biomass in Indonesia. Research performed by designing ORC with that produces around 200 kWe. Simulation done Microsoft Excel and Refe...

the purpose of this research is to investigate thermoeconomic optimization and exergy analysis of transcritical co2 refrigeration cycle with an ejector. after modeling thermodynamic equations of elements and considering optimization parameters of emerging temperature of gas of cooler (tgc) , emerging pressure of cooler's gas (pgc) , and evaporative temperature (tevp) , optimization of targ...

Thermoeconomic diagnosis of refrigeration systems is a pioneering approach to the diagnosis of malfunctions, which has been recently proven to achieve good performances for the detection of specific faults. Being an exergy-based diagnostic technique, its performance is influenced by the trends of exergy functions in the “design” and “abnormal” conditions. In this paper the sensitivity of perfor...

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...

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...

A simple vapor-compression refrigeration system becomes ineffective and inefficient as it consumes a huge energy supply when operating between large temperature differences. Moreover, the recent Kigali amendment has raised concern about phasing out some hydrofluorocarbon refrigerants due to their impact on environment. In this paper, numerical investigation is carried compare performance of cas...