Design methodology of organic Rankine cycle for waste heat recovery in cement plants

Ahmed, Awais; Esmaeil, Khaled Khodary; Irfan, Mohammad A.; Al-Mufadi, Fahad A.

doi:10.1016/j.applthermaleng.2017.10.019

Cited by 46 publications

(19 citation statements)

References 20 publications

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“…• Desiccant solution carryover leads to corrosion and high maintenance cost; and high thermal energy requirements for desiccant regeneration; low system efficiency; bulk system; system performance depends on atmospheric condition ORC [41,55] • Higher efficiency at low temperature and pressure; no blade erosion; and reduced maintenance…”

Section: Technology Advantage Disadvantagementioning

confidence: 99%

State-of-the-Art Technologies on Low-Grade Heat Recovery and Utilization in Industry

Ling‐Chin

Bao

et al. 2019

Energy Conversion - Current Technologies and Future Trends

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To improve energy efficiency in industry, low-grade heat recovery technologies have been advanced continuously. This chapter aims to provide a basic understanding of state-of-the-art technologies for low-grade heat recovery and utilization in industry, which are developed based on the concept of thermodynamic cycles. The technologies include adsorption, absorption, liquid desiccant, organic Rankine cycles (ORC), and Kalina cycles. The definition of low-grade heat sources, the working principle, recent advances in research and development (R&D), and commercial applications of the technologies (if any) will be discussed, followed by concluding remarks on advantages and disadvantages, future outlook, barriers, and opportunities.

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Section: Technology Advantage Disadvantagementioning

confidence: 99%

State-of-the-Art Technologies on Low-Grade Heat Recovery and Utilization in Industry

Ling‐Chin

Bao

et al. 2019

Energy Conversion - Current Technologies and Future Trends

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show abstract

“…The median floor stage includes every static systematic component as process heat exchangers, piping. Additionally, the condensers are beared by the top of the steel body [57,58]. The system can be merged in almost any industrial processes due to its modular design.…”

Section: Exergy Efficiencymentioning

confidence: 99%

Thermodynamic investigation of organic Rankine cycle energy recovery system and recent studies

et al. 2018

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Recently, new environment-friendly energy conversion technologies are required for using energy resources valid to power generation. Accordingly, low-grade heat sources as solar heat, geothermal energy, and waste heat, which have available temperatures ranging between 60 and 200 °C, are supposed as applicants for recent new generation energy resources. As an alternative energy source, such low-grade heat sources usage generating electricity with the help of power turbine cycles was examined through this study. Such systems have existing technologies applicable at low temperatures and a compact structure at low cost, however, these systems have a low thermal efficiency of the Rankine cycles operated at low temperatures. An organic Rankine cycle is alike to a conventional steam power plant, except the working fluid, which is an organic, high molecular mass fluid with a liquid-vapor phase change, or boiling point, at a lower temperature than the water-steam phase change. The efficiency of an organic Rankine cycle is about between 10% and 20%, depending on temperature levels and availability of a valid fluid.

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“…14,15 Radial inflow turbine is the main component of ORC system, which determines the system efficiency. [19][20][21] Awais Ahmed et al 22 presented a design method for the ORC system in a cement factory. [16][17][18] Numbers of research studies on ORC system have been conducted recently.…”

mentioning

confidence: 99%

“…[16][17][18] Numbers of research studies on ORC system have been conducted recently. [19][20][21] Awais Ahmed et al 22 presented a design method for the ORC system in a cement factory. Then the exergy distribution of the cycle was obtained through exergy analysis.…”

mentioning

confidence: 99%

Improved thermodynamic and aerodynamic design method and off‐design performance analysis of a radial inflow turbine for ORC system

Han

Jia

2019

Int J Energy Res

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Summary Radial inflow turbine is one of the crucial components of organic Rankine cycle (ORC) system, which has great impact on the performance of system. R245fa was selected as the working fluid to recycle the waste heat source with a temperature of 350 to 400 K. The genetic algorithm (GA) was employed in thermodynamic design to optimize the 10 key design parameters, which are needed in aerodynamic design of the ORC turbine. Isotropic efficiency was the fitness function of 10 key variables in GA. The three‐dimensional geometry model was built based on the thermodynamic and aerodynamic design and then was imported into the commercial software ANSYS‐CFX to conduct viscous numerical simulation. Based on the three‐dimensional simulation, the off‐design performance in different mass flow rate, static inlet temperature coupled with different rotational speed was investigated respectively. The results show that at design condition, the maximum efficiency deviation is only 2.5% with the rotational speed variations among the range of 10%, so the radial inflow turbine designed in this research possesses great off‐design performance.

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Design methodology of organic Rankine cycle for waste heat recovery in cement plants

Cited by 46 publications

References 20 publications

State-of-the-Art Technologies on Low-Grade Heat Recovery and Utilization in Industry

State-of-the-Art Technologies on Low-Grade Heat Recovery and Utilization in Industry

Thermodynamic investigation of organic Rankine cycle energy recovery system and recent studies

Improved thermodynamic and aerodynamic design method and off‐design performance analysis of a radial inflow turbine for ORC system

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