Review of Organic Rankine Cycle experimental data trends

Park, Byung Sik; Usman, Muhammad; Imran, Muhammad; Pesyridis, Apostolos

doi:10.1016/j.enconman.2018.07.097

Cited by 170 publications

(54 citation statements)

References 130 publications

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“…However, η carn fluctuated from 22.8 to 23% caused by the fluctuation of T 7 and T 10 . Furthermore, η gros was around 40.5% of η carn , which was higher than the average value obtained from most experimental research by statistics [18].…”

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confidence: 69%

“…Most of the available research focused on utilization of the scroll expander, radial inflow turbine, and screw expander. The power output capacity of a scroll expander ranges from 0.35 to 7.5 kW, followed by a screw expander, which has a power output capacity ranging from 7 to 50 kW, while a turbine can operate over a wide range from the kilowatt to megawatt scale [18]. Table 2 illustrates most of the ORC experimental results, among which the heat source temperature was below 150 • C. It can be seen that various kinds of heat sources were adopted, including water, oil, steam, gas, and electric heaters.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Investigation of a 300 kW Organic Rankine Cycle Unit with Radial Turbine for Low-Grade Waste Heat Recovery

Wang

Kuang

Zhu

et al. 2019

Entropy

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The performance of a 300 kW organic Rankine cycle (ORC) prototype was experimentally investigated for low-grade waste heat recovery in industry. The prototype employed a specially developed single-stage radial turbine that was integrated with a semi-hermetic three-phase asynchronous generator. R245fa was selected as the working fluid and hot water was adopted to imitate the low-grade waste heat source. Under approximately constant cooling source operating conditions, variations of the ORC performance with diverse operating parameters of the heat source (including temperature and volume flow rate) were evaluated. Results revealed that the gross generating efficiency and electric power output could be improved by using a higher heat source temperature and volume flow rate. In the present experimental research, the maximum electric power output of 301 kW was achieved when the heat source temperature was 121 °C. The corresponding turbine isentropic efficiency and gross generating efficiency were up to 88.6% and 9.4%, respectively. Furthermore, the gross generating efficiency accounted for 40% of the ideal Carnot efficiency. The maximum electric power output yielded the optimum gross generating efficiency.

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confidence: 69%

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of a 300 kW Organic Rankine Cycle Unit with Radial Turbine for Low-Grade Waste Heat Recovery

Wang

Kuang

Zhu

et al. 2019

Entropy

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“…One of the important factors considered in energy production is the regeneration of the huge amount of thermal energy contained in waste heat and the utilization of renewable heat . The best established large‐scale technology for the conversion of waste or renewable heat to power (besides steam turbines) is based on the Organic Rankine Cycle (ORC) . However, because devices that operate on this cycle use refrigerants, they also have adverse environmental implications .…”

Section: Introductionmentioning

confidence: 99%

Energy Applications of Magnetocaloric Materials

Kitanovski

2020

Advanced Energy Materials

378

156

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The need for energy‐efficient and environmentally friendly refrigeration, heat pumping, air conditioning, and thermal energy harvesting systems is currently more urgent than ever. Magnetocaloric energy conversion is among the best available alternatives for achieving these technological goals and has been the subject of substantial basic and applied research over the last two decades. The subject is strongly interdisciplinary, requiring proper understanding and efficient integration of knowledge in different specialized fields. This review article presents a historical and up‐to‐date account of the energy‐related applications of magnetocaloric materials and information about their processing and magnetic fields, thermodynamics, heat transfer, and other relevant characteristics. The article also discusses the conceptual design of magnetocaloric refrigeration and power generation systems and some guidelines for future research in the field.

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“…Park et al highlighted the trends of research for ORC systems. During the reporting, the R245fa was the most popular working fluid, followed by R123 and then R134a and average values of Back‐Work Ratio were 25.9% for ORC experiments.…”

Section: Introductionmentioning

confidence: 99%

A study of effects on economic indicators for different heat source temperature on thermal storage‐based solar organic Rankine cycle system

Baral

2020

Engineering Reports

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The solar organic Rankine cycle (ORC) system for power generation with thermal storage type may be one of the promising technologies for prolonging power generation. The thermal storage type of solar ORC system is feasible for investment due to higher power production. In addition, the heat source temperature of the ORC system plays an important role in the investment. The main aim of the study is to investigate the solar ORC with thermal storage systems from the thermoeconomic point of view. The paper provides recommendations for a suitable class of investment in which an ORC system can be economically feasible.Besides, the economics and thermoeconomic analysis is carried out in order to find the cost of electricity production from the solar ORC under various solar source temperatures. The cost of electricity generation is found to be in the range of $0.2/kWh to $0.6/kWh for 120 • C and 90 • C, respectively. For analysis, different financial scenarios are developed based on the total cost of the solar ORC units. The economic parameters, such as payback period, internal rate of return (IRR) and specific investment cost, are calculated. The payback period is found to be less than 6 years for the thermal storage type of solar ORC system with the IRR to be 15%. This shows that the investment is feasible for medium and large scale solar ORC with thermal storage systems.

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Review of Organic Rankine Cycle experimental data trends

Cited by 170 publications

References 130 publications

Experimental Investigation of a 300 kW Organic Rankine Cycle Unit with Radial Turbine for Low-Grade Waste Heat Recovery

Experimental Investigation of a 300 kW Organic Rankine Cycle Unit with Radial Turbine for Low-Grade Waste Heat Recovery

Energy Applications of Magnetocaloric Materials

A study of effects on economic indicators for different heat source temperature on thermal storage‐based solar organic Rankine cycle system

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