Results 21 to 30 of about 159,051 (281)

Closed-Loop PI Control of an Organic Rankine Cycle for Engine Exhaust Heat Recovery

open access: yesEnergies, 2020
The internal combustion engine (ICE) as a main power source for transportation needs to improve its efficiency and reduce emissions. The Organic Rankine Cycle (ORC) is a promising technique for exhaust heat recovery.
Wen Zhang   +4 more
doaj   +1 more source

Expander selection for an on board ORC energy recovery system [PDF]

open access: yes, 2017
This paper deals with the comparison between volumetric expanders (screw, scroll and rotary vane) and an Inlet Forward Radial (IFR) micro turbine for the exploitation of an on board Organic Rankine Cycle (ORC) energy recovery system.
Capata, Roberto, Fabio, Pantano
core   +1 more source

Operation Characteristics and Transient Simulation of an ICE-ORC Combined System

open access: yesApplied Sciences, 2019
Currently, internal combustion engines (ICEs) are still the main power for transportation. Energy conservation and emission reduction for ICEs have become the driving force of the industrial R&D in recent years.
Tong Liu   +6 more
doaj   +1 more source

Optimisation of power generation cycles using saturated liquid expansion to maximise heat recovery [PDF]

open access: yes, 2017
The use of two-phase screw expanders in power generation cycles can achieve an increase in the utilisation of available energy from a low-temperature heat source when compared with more conventional single-phase turbines. The efficiency of screw expander
Read, M. G., Smith, I. K., Stosic, N.
core   +1 more source

Development and a Validation of a Charge Sensitive Organic Rankine Cycle (ORC) Simulation Tool

open access: yesEnergies, 2016
Despite the increasing interest in organic Rankine cycle (ORC) systems and the large number of cycle models proposed in the literature, charge-based ORC models are still almost absent.
Davide Ziviani   +7 more
doaj   +1 more source

Numerical investigation of oil injection in a Roots blower operated as expander [PDF]

open access: yes, 2019
The adoption of positive displacement machines as expanders in Organic Rankine Cycles (ORCs) is increasingly common, especially in the low to medium power range. At the same time, these devices often serve as compressor in Vapor-Compression Refrigeration
  +16 more
core   +2 more sources

Mechanistic model of an oil-flooded single-screw expander

open access: yes, 2016
The power generated from Organic Rankine Cycles (ORCs) is directly related to the performance of the expander used, which in many cases it is adapted from the original compressor. The efficiency of positive displacement expanders depends on several aspects such as internal volume ratio and pressure ratio (under- and over-expansion), leakages, non ...
Ziviani, Davide   +3 more
openaire   +3 more sources

Optimisation of two-stage screw expanders for waste heat recovery applications [PDF]

open access: yes, 2015
It has previously been shown that the use of two-phase screw expanders in power generation cycles can achieve an increase in the utilisation of available energy from a low temperature heat source when compared with more conventional single-phase turbines.
Read, M. G., Smith, I. K., Stosic, N.
core   +1 more source

Multi-objective optimization of a novel reversible High-Temperature Heat Pump-Organic Rankine Cycle (HTHP-ORC) for industrial low-grade waste heat recovery [PDF]

open access: yes, 2019
Nowadays, a high amount of industrial thermal energy is still lost due to the lack of competitive solutions for energy revalorization. Facing this challenge, this paper presents a novel technology, based on a reversible High-Temperature Heat Pump (HTHP ...
Amat-Albuixech, Marta   +5 more
core   +1 more source

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