Wind effect on the performance of a solar organic Rankine cycle

Marion, Michaël; Voicu, Ionuț; Tiffonnet, Anne-Lise

doi:10.1016/j.renene.2014.03.010

Cited by 16 publications

(9 citation statements)

References 27 publications

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“…On the other hand, DVG technology has several advantages, namely (1) high efficiency can be obtained by increasing the evaporation temperature (2) having low thermal inertia, compared to HTF systems, which reflects the fast start of the system but, which includes DVG disadvantage is a system that has a high sensitivity to the environment that each alternating bright and cloudy period experiences fluctuations in evaporation temperature, which is reflected in the steam flow rate entering the turbine resulting turbine speed have fluctuations [11].…”

Section: Organic Rankine Cycle With Solar Collectormentioning

confidence: 99%

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Design and Manufacturing of Organic Rankine Cycle (ORC) System Using R-134a as Working Fluid with Solar Collector as Source Energy

Martin¹,

Naibaho²,

Kurniawan³

et al. 2019

Proceedings of the International Conference of CELSciTech 2019 - Science and Technology Track (ICCELST-ST 2019)

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Renewable energy sources such as solar heat, wind energy, geothermal, biomass and exhaust heat is one way to overcome the crisis of energy and environment in the world. Organic Rankine Cycle (ORC) is a power generation system modified from Rankine Cycle by using organic liquid with low boiling point as working fluids such as R-134a, therefore various types of heat sources can be use. This research was design and manufacture organic Rankine cycle by using R-134a as working fluid with solar collector as the source of energy. The design of this research resulted in the length of the evaporator tube is 14.5 m, length of condenser is 13.9 m and the length of solar collector tube is 9.4 m. The helical Diameter of evaporator and condenser are 250 mm, and the high of helical evaporator 290 mm and condenser 280 mm. Organic Rankine cycle system is designed to produced 534.4 Watt, but when the experiment is carried out the system generates energy of 305 Watt with the efficiency of 4.30%

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Section: Organic Rankine Cycle With Solar Collectormentioning

confidence: 99%

“…To found the velocity value of fluid flow (9) Then the value of Reynold Numbers (10) To found the Nusselt Number value (11) To calculate convection coefficient inner and outer (12) To determine Thermal Resistance (R) and Overall heat transfer coeficient (U) (13) (14)…”

Section: Parameter Designmentioning

confidence: 99%

Design and Manufacturing of Organic Rankine Cycle (ORC) System Using R-134a as Working Fluid with Solar Collector as Source Energy

Martin¹,

Naibaho²,

Kurniawan³

et al. 2019

Proceedings of the International Conference of CELSciTech 2019 - Science and Technology Track (ICCELST-ST 2019)

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“…However, the evaporation process inside the collector tube becomes more complicated for the DVG system. Moreover, a DVG solar ORC system is particularly sensitive to climatic conditions, such as solar radiation and ambient temperature [17].…”

Section: Introductionmentioning

confidence: 99%

Effect of Phase Change Material Storage on the Dynamic Performance of a Direct Vapor Generation Solar Organic Rankine Cycle System

et al. 2020

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Solar energy is a potential source for a thermal power generation system. A direct vapor generation solar organic Rankine cycle system using phase change material storage was analyzed in the present study. The overall system consisted of an arrangement of evacuated flat plate collectors, a phase-change-material-based thermal storage tank, a turbine, a water-cooled condenser, and an organic fluid pump. The MATLAB programming environment was used to develop the thermodynamic model of the whole system. The thermal storage tank was modeled using the finite difference method and the results were validated against experimental work carried out in the past. The hourly weather data of Karachi, Pakistan, was used to carry out the dynamic simulation of the system on a weekly, monthly, and annual basis. The impact of phase change material storage on the enhancement of the overall system performance during the charging and discharging modes was also evaluated. The annual organic Rankine cycle efficiency, system efficiency, and net power output were observed to be 12.16%, 9.38%, and 26.8 kW, respectively. The spring and autumn seasons showed better performance of the phase change material storage system compared to the summer and winter seasons. The rise in working fluid temperature, the fall in phase change material temperature, and the amount of heat stored by the thermal storage were found to be at a maximum in September, while their values became a minimum in February.

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“…The effect of wind also plays an important role in solar ORC system performance. Michael et al [12] studied the effects of wind, ambient temperature and solar radiation on solar ORC system. The results suggested that the thermal efficiency changes from 3.1% to 6.9% in the ORC system.…”

Section: Introductionmentioning

confidence: 99%

Energy, Exergy and Performance Analysis of Small-Scale Organic Rankine Cycle Systems for Electrical Power Generation Applicable in Rural Areas of Developing Countries

et al. 2015

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This paper introduces the concept of installing a small-scale organic Rankine cycle system for the generation of electricity in remote areas of developing countries. The Organic Rankine Cycle Systems (ORC) system uses a commercial magnetically-coupled scroll expander, plate type heat exchangers and plunger type working fluid feed pump. The heat source for the ORC system can be solar energy. A series of laboratory tests were conducted to confirm the cycle efficiency and expander power output of the system. Using the actual system data, the exergy destruction on the system components and exergy efficiency were assessed. Furthermore, the results of the variations of system energy and exergy efficiencies with different operating parameters, such as the evaporating and condensing pressures, degree of superheating, dead state temperature, expander inlet temperature and pressure ratio were illustrated. The system exhibited acceptable operational characteristics with good performance under a wide range of conditions. A heat source temperature of 121 °C is expected to deliver a power output of approximately 1.4 kW. In addition, the system cost analysis and financing mechanisms for the installation of the ORC system were discussed.

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Wind effect on the performance of a solar organic Rankine cycle

Cited by 16 publications

References 27 publications

Design and Manufacturing of Organic Rankine Cycle (ORC) System Using R-134a as Working Fluid with Solar Collector as Source Energy

Design and Manufacturing of Organic Rankine Cycle (ORC) System Using R-134a as Working Fluid with Solar Collector as Source Energy

Effect of Phase Change Material Storage on the Dynamic Performance of a Direct Vapor Generation Solar Organic Rankine Cycle System

Energy, Exergy and Performance Analysis of Small-Scale Organic Rankine Cycle Systems for Electrical Power Generation Applicable in Rural Areas of Developing Countries

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