Expander selection for an on board ORC energy recovery system

Pantano, Fabio; Capata, Roberto

doi:10.1016/j.energy.2017.09.142

Cited by 54 publications

(14 citation statements)

References 21 publications

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“…The issues related to the selection of the expander to the ORC system used for waste heat recovery from an 8-L bus engine were analyzed at the University of Rome "Sapienza" [81]. By means of modeling, the authors compared the inward-flow radial turbine, screw, scroll, and multi-vane expander.…”

Section: University Of Rome "Sapienza" (Italy)mentioning

confidence: 99%

Application of the Multi-Vane Expanders in ORC Systems—A Review on the Experimental and Modeling Research Activities

Kolasiński

2019

Energies

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This paper reviews the applications of the multi-vane expanders in ORC (organic Rankine cycle) systems. The operating principle and design of the ORC systems are addressed in the introduction. Then, there is a brief review of the expanders applied in small-power and micro-power ORCs, and a discussion of the multi-vane expander design and operating principle as an introduction to a comprehensive review on the applications of the multi-vane expanders in ORC systems. The different features of the multi-vane expanders—i.e., the design of the expander, its geometrical dimensions and operating conditions, durability, applied working fluid, obtained power output, and efficiency—are analyzed in this paper. This review clearly indicates that multi-vane expanders are a promising alternative to the different types of the expanders applied in ORC systems.

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Section: University Of Rome "Sapienza" (Italy)mentioning

confidence: 99%

Application of the Multi-Vane Expanders in ORC Systems—A Review on the Experimental and Modeling Research Activities

Kolasiński

2019

Energies

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“…Peris et al [4] were interested in using ORC for combined heat and power (CHP) applications, and Capata et al [5] recovered vehicle waste heat with small-scale ORC. In addition, solar energy, wind energy, and ocean temperature difference energy are of particular interest in small-scale ORC systems [6][7][8]. Therefore, extensive research studies have been conducted on the ORC.…”

Section: Introductionmentioning

confidence: 99%

Investigating the System Behaviors of a 10 kW Organic Rankine Cycle (ORC) Prototype Using Plunger Pump and Centrifugal Pump

et al. 2020

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Based on a 10-kW organic Rankine cycle (ORC) experimental prototype, the system behaviors using a plunger pump and centrifugal pump have been investigated. The heat input is in the range of 45 kW to 82 kW. The temperature utilization rate is defined to appraise heat source utilization. The detailed components' behaviors with the varying heat input are discussed, while the system generating efficiency is examined. The exergy destruction for the four components is addressed finally. Results indicated that the centrifugal pump owns a relatively higher mass flow rate and pump isentropic efficiency, but more power consumption than the plunger pump. The evaporator pressure drops are in the range of 0.45-0.65 bar, demonstrating that the pressure drop should be considered for the ORC simulation. The electrical power has a small difference using a plunger pump and a centrifugal pump, indicating that the electric power is insensitive on the pump types. The system generating efficiency for the plunger pump is approximately 3.63%, which is 12.51% higher than that of the centrifugal pump. The exergy destruction for the evaporator, expander, and condenser is almost 30%, indicating that enhancing the temperature matching between the system and the heat (cold) source is a way to improve the system performance.

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“…Among turbo-machineries, for instance, radial turbines appears more suitable than axial ones, which suffers so much off-design conditions and needs additional strategies to manage transient state [16,17]. In this regard, volumetric machines seem to better fulfil variable operating requirements [18,19]. Among them, rotary and reciprocating types have been extensively considered.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Characterization of the Sliding Rotary Vane Expander Intake Pressure in Order to Develop a Novel Control-Diagnostic Procedure

et al. 2019

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Waste heat recovery via Organic Rankine Cycle (ORC)-based power units represents one of the most promising solutions to counteract the effects of CO2 emissions on climate change. Nevertheless, several aspects are still limiting its development on the on-the-road transportation sector. Among these aspects, the significant variations of the conditions of the hot source (exhaust gases) are a crucial point. Therefore, the components of the ORC-based unit operate far from the design point if the main operating parameters of the plant are not suitably controlled. The maximum pressure of the cycle is one of the most important variables to be controlled for the importance it has on the effectiveness of the recovery and on safety of operation. In this paper, a wide experimental and theoretical activity was performed in order to define the operating parameters that mostly affect the maximum pressure of the recovery unit. The results showed that the mass flow rate provided by the pump and the expander volumetric efficiency were the main drivers that affect the plant maximum pressure. Subsequently, through a validated model of the expander, a diagnostic map was outlined to evaluate if the expander and, consequently, the whole plant were properly working.

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Expander selection for an on board ORC energy recovery system

Cited by 54 publications

References 21 publications

Application of the Multi-Vane Expanders in ORC Systems—A Review on the Experimental and Modeling Research Activities

Application of the Multi-Vane Expanders in ORC Systems—A Review on the Experimental and Modeling Research Activities

Investigating the System Behaviors of a 10 kW Organic Rankine Cycle (ORC) Prototype Using Plunger Pump and Centrifugal Pump

Experimental and Numerical Characterization of the Sliding Rotary Vane Expander Intake Pressure in Order to Develop a Novel Control-Diagnostic Procedure

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