Results 111 to 120 of about 9,921 (228)

Working fluid selection of low grade heat geothermal Organic Rankine Cycle (ORC) [PDF]

open access: yesInternational Journal of Thermal Technologies, 2011
The paper presents working fluid selection of the ORC unit powered by geothermal source. A validated model was used to assess 25 working fluids belonging to different chemical compositions, HFC, HCFC, HC, mixture and inorganic. The selection criteria were based on: net produced power, thermal efficiency, refrigerant pump power consumption, evaporating ...
openaire   +1 more source

Energy, Exergy and Performance Analysis of Small-Scale Organic Rankine Cycle Systems for Electrical Power Generation Applicable in Rural Areas of Developing Countries

open access: yesEnergies, 2015
This paper introduces the concept of installing a small-scale organic Rankine cycle system for the generation of electricity in remote areas of developing countries.
Suresh Baral   +3 more
doaj   +1 more source

Potential of Organic Rankine Cycles (ORC) for waste heat recovery on an Electric Arc Furnace (EAF) [PDF]

open access: yes, 2017
The organic Rankine cycle (ORC) is a mature technology to convert low temperature waste heat to electricity. While several energy intensive industries could benefit from the integration of an ORC, their adoption rate is rather low.
A Oyewunmi, Oyeniyi   +7 more
core  

Performance potential of ORC architectures for waste heat recovery taking into account design and environmental constraints [PDF]

open access: yes, 2015
The subcritical ORC (SCORC), sometimes with addition of a recuperator, is the de facto state of the art technology in the current market. However architectural changes and operational modifications have the potential to improve the base system.
De Paepe, Michel   +2 more
core   +1 more source

Jay Carter Enterprises, Incorporated steam engine [PDF]

open access: yes, 1981
The Small Community Solar Thermal Power Experiment (SCSE) selected an organic rankine cycle (ORC) engine driving a high speed permanent magnet alternator (PMA) as the baseline power conversion subsystem (PCS) design.

core   +1 more source

Comparison of moving boundary and finite-volume heat exchangers models in the Modelica language [PDF]

open access: yes, 2015
When modelling low capacity energy systems such as a small (5–150 kWel) organic Rankine cycle unit, the governing dynamics are mainly concentrated in the heat exchangers.
Dechesne, Bertrand   +6 more
core  

Numerical Evaluation of Equation of State Sensitivity in Energy Conversion Systems

open access: yesMathematics
Improving energy efficiency by minimizing waste heat losses has become a critical objective in industrial and transportation applications. Organic Rankine Cycles (ORCs) offer an effective solution for converting low-grade thermal energy into useful power.
Maha Alharbi, Fuhaid Alshammari
doaj   +1 more source

Experimental characterization of single screw expander performance under different testing conditions and working fluids [PDF]

open access: yes, 2015
During the last years, one of the most popular ways to recover low-grade waste heat is the organic Rankine cycle (ORC). This technology is widely studied and continuously optimized and, as a result, there are many efficient installations available on the
Gusev, Sergei   +2 more
core   +1 more source

Reciprocating expanders for Organic Rankine Cycle (ORC) Applications

open access: yes, 2013
The current trend for ever increasing energy prices acts as an important driver for improved efficiency via novel heat integration and energy generation schemes. This project is concerned with small-scale Organic Rankine Cycle (ORC) engines for power generation, primarily for use in the domestic sector and in small industrial plants, in conjunction ...
openaire   +1 more source

Organic rankine cycle with positive displacement expander and variable working fluid composition [PDF]

open access: yes, 2016
Organic Rankine Cycles are often used in the exploitation of low-temperature heat sources. The relatively small temperature differential available to these projects makes them particularly vulnerable to changing ambient conditions, especially if an air ...
Collings, Peter, Yu, Zhibin
core  

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