Solar energy powered Rankine cycle using supercritical CO2

Yamaguchi, Hiroshi; Zhang, X.R.; Fujima, Katsumi; Enomoto, Masatoshi; Sawada, N.

doi:10.1016/j.applthermaleng.2006.02.029

Cited by 224 publications

(75 citation statements)

References 12 publications

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“…In addition, for the production of clean power, the solar ORC system can greatly help reduce the consumption of fossil fuels and solve the problem of greenhouse gas emissions. If a solar ORC unit is used instead in petroleum-based plants for electricity generation, the saved petroleum Ps, (L/year) and reduced CO2 emission, Rc (Kg/year) can be estimated using Equations (18) and (19), respectively [22]:…”

Section: Sustainable Development Through Solar Orc Systemmentioning

confidence: 99%

Experimental and Thermoeconomic Analysis of Small-Scale Solar Organic Rankine Cycle (SORC) System

Baral

Kim

Yun

et al. 2015

Entropy

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A small-scale solar organic Rankine cycle (ORC) is a promising renewable energy-driven power generation technology that can be used in the rural areas of developing countries. A prototype was developed and tested for its performance characteristics under a range of solar source temperatures. The solar ORC system power output was calculated based on the thermal and solar collector efficiency. The maximum solar power output was observed in April. The solar ORC unit power output ranged from 0.4 kW to 1.38 kW during the year. The highest power output was obtained when the expander inlet pressure was 13 bar and the solar source temperature was 120 °C. The area of the collector for the investigation was calculated based on the meteorological conditions of Busan City (South Korea). In the second part, economic and thermoeconomic analyses were carried out to determine the cost of energy per kWh from the solar ORC. The selling price of electricity generation was found to be $0.68/kWh and $0.39/kWh for the prototype and low cost solar ORC, respectively. The sensitivity analysis was carried out in order to find the influencing economic parameters for the change in NPV. Finally, the sustainability index was calculated to assess the sustainable development of the solar ORC system.

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Section: Sustainable Development Through Solar Orc Systemmentioning

confidence: 99%

Experimental and Thermoeconomic Analysis of Small-Scale Solar Organic Rankine Cycle (SORC) System

Baral

Kim

Yun

et al. 2015

Entropy

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“…The heat gained by condenser with temperature difference of the input and output water temperature of the storage tank/ condenser as following Q c = m w C w T wo − T wi (18) VIII.…”

Section: Condenser Heat Gainmentioning

confidence: 99%

Performance Evaluation of Solar Assisted Heat Pump Water Heating System

R.N¹

2013

IOSRJEN

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:The application of solar thermal energy in water heating system has received more attention in recent years. The solar water heaters is used both in domestic and industrial use. The variation of solar intensity and atmospheric condition is key issue in determining the performance of solar water heater. The conventional thermosyphon solar water heaters fail to provide hot water supply round the clock in low temperature regions. The use heat pump with solar water heating system provides better water management. The COP of heat pump increases with increase in solar intensity and is energy efficient compared to conventional solar water heaters with electric or gas boosters as auxiliary heat source.The main objective of this paper is to compare the performance of heat pump assisted solar water heater to conventional solar water heating system for low ambient temperature application. The theoretical analysis of solar water heater with heat pump integration is presented which shows that the collector efficiency and output water temperature can be increased compared to conventional solar water heaters under same solar intensity and ambient condition.

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“…It was considered for further investigation because its simple and compact design could lead to other advantages such as reduction of costs and footprint. Since carbon dioxide is not commonly employed in Rankine cycles and there are very few examples in the literature [50]- [52], challenges are expected for all the components of the cycle. However, limitations in the design and therefore to the cycle are mainly expected from the turbomachinery.…”

Section: Analysis Of the Closed Rankine Cycle Using Carbon Dioxidementioning

confidence: 99%

System Analysis of Waste Heat Applications With LNG Regasification

́lez-Salazar

Belloni

Finkenrath

et al. 2009

Volume 4: Cycle Innovations; Industrial and Cogeneration; Manufacturing Materials and Metallurgy; Marine

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The combination of the continuously growing demand of energy in the world, the depletion of oil and its sharp price increase, as well as the urgent need for cleaner and more efficient fuels have boosted the global trade of liquefied natural gas (LNG). Nowadays, there is an increasing interest on the design philosophy of the LNG receiving terminals, due to the fact that the existing technologies either use seawater as heating source or burn part of the fuel for regasifying LNG, thus destroying the cryogenic energy of LNG and causing air pollution or harm to marine life. This investigation addresses the task of developing novel systems able to simultaneously regasify LNG and generate electric power in the most efficient and environmentally friendly way.Existing and proposed technologies for integrated LNG regasification and power generation were identified and simple, efficient, safe and compact alternatives were selected for further analysis. A baseline scenario for integrated LNG regasification and power generation was established and simulated, consisting of a cascaded Brayton configuration with a typical small gas turbine as topping cycle and a simple closed Brayton cycle as bottoming cycle. Various novel configurations were created, modeled and compared to the baseline scenario in terms of LNG regasification rate, efficiency and power output. The novel configurations include closed Rankine and Brayton cycles for the bottoming cycle, systems for power augmentation in the gas turbine and combinations of options. A study case with a simple and compact design was selected, preliminarily designed and analyzed according to characteristics and costs provided by suppliers. The performance, costs and design challenges of the study case were then compared to the baseline case. The results show that the study case causes lower investment costs and a smaller footprint of the plant, at the same time offering a simple design solution though with substantially lower efficiencies.

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Solar energy powered Rankine cycle using supercritical CO2

Cited by 224 publications

References 12 publications

Experimental and Thermoeconomic Analysis of Small-Scale Solar Organic Rankine Cycle (SORC) System

Experimental and Thermoeconomic Analysis of Small-Scale Solar Organic Rankine Cycle (SORC) System

Performance Evaluation of Solar Assisted Heat Pump Water Heating System

System Analysis of Waste Heat Applications With LNG Regasification

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