Thermo-economic analysis for determination of optimized connection between solar field and combined cycle power plant

Nabati, Amir Masoud; Sadeghi, M.S.; Naserabad, Sadegh Nikbakht; Mokhtari, Hamid; Izadpanah, S.

doi:10.1016/j.energy.2018.08.047

Cited by 13 publications

(2 citation statements)

References 31 publications

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“…Nevertheless, they go beyond. Indeed, there are multiple points where the solar energy can be supplied [7][8][9][10] and many available CSP technologies that open a wide optimisation window [11,12] to make the integrated plant more efficient than the CCGT and CSP plants working separately.…”

Section: Introductionmentioning

confidence: 99%

Towards High Solar Contribution in Hybrid CSP-Combined Cycle Gas Turbine Plants

Rovira,

Barbero,

Ortega

et al. 2023

International Journal of Energy Research

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This paper proposes and analyses several configurations for hybridising concentrating solar power (CSP) plants with combined cycle gas turbines (CCGT). The objective is to increase the solar contribution to a large extent, much higher than those obtained in integrated solar combined cycles but maintaining synergies, which are usually lost when increasing the solar share. For that, two thermal energy management systems are introduced at different temperature levels. First, a configuration with only the low-temperature system is proposed. Then, an enhanced configuration with the low- and high-temperature systems is conceived. These configurations are compared to reference CSP and CCGT state-of-the-art plants. The analyses include different strategies of operation and two sizes for the thermal energy storage system. The results show that the first proposed configuration introduces some synergies but cannot improve the performance of the reference CSP and CCGT working separately, due to an issue with the solar dumping on days with high solar irradiation. The enhanced configuration overcomes this problem and maintains the synergies, leading to an improvement from both the thermodynamic and economic points of view, increasing the solar contribution and decreasing the levelized cost of energy over the reference plants.

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Section: Introductionmentioning

confidence: 99%

Towards High Solar Contribution in Hybrid CSP-Combined Cycle Gas Turbine Plants

Rovira,

Barbero,

Ortega

et al. 2023

International Journal of Energy Research

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show abstract

“…[7][8][9] The goal is to reduce pollution and increase efficiency by reducing fuel consumption per electricity generated in these articles. 10,11 Shagdar et al 12 examined four different connections of a solar power plant to a coal-fired power plant. The results show that the use of the proposed hybrid system in the best case has reduced the consumption of coal by 26.8 Ton/h and increased the net production capacity of the power plant by 30 MW.…”

Section: Introductionmentioning

confidence: 99%

Artificial intelligence‐based tri‐objective optimization of different demand load patterns on the optimal sizing of a smart educational buildings

Hosseini

Naserabad

Keshavarzzadeh

et al. 2022

Intl J of Energy Research

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In this research, an integrated energy system for providing triple loads of an educational building has been modeled, analyzed, and optimized using artificial intelligence The use of different load supply patterns for the integrated system was optimized and evaluated from the point of view of exergy, economics, and environment. SketchUp, OpenStudio, and EnergyPlus are used to obtain the building loads, and the integrated system is dynamically modeled by the MATLAB software. The integrated system has been optimized based on different patterns, including monthly, seasonal, and two-state constant loads compared with hourly dynamic loads using an artificial intelligence genetic algorithm. The results show that the dynamic load pattern gives the highest exergy efficiency and the lowest total cost rate. The exergy efficiency and total cost rate in this scenario are 58.78% and 5.022 $/h, respectively. Also, the CO 2 emission index has reached 363.1 g/kWh. Due to the subsidized price of grid electricity, there is a tendency to use low-capacity gas turbines and buy electricity from the grid for the dynamic model. The gas turbine capacity is 35.56 kW, and the system has purchased 242.4 MWh from the grid. Due to high heating loads, the capacity of the gas turbine significantly increases, and no electricity is purchased from the grid in the fixed-load pattern. The highest capacity of the gas turbine is 161.6 kW, which is obtained by a seasonal fixedload pattern. Also, 994.9 MWh of electricity is sold to the grid in this mode.

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4E investigation of solar-driven RO and RRO osmotic desalination systems from water, energy, and environment relevance perspective: a comparative approach

Naminezhad

Mehregan

2022

Appl Water Sci

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In this paper, two osmotic desalination systems, namely, plug reverse osmosis (RO) and recirculation reverse osmosis (RRO) systems integrated with solar and organic Rankine cycle (ORC), have been presented. These systems are modeled and optimized from energy, exergy, economic, and environmental perspectives. The objective functions are the concentration disposal index (CDI) and unit cost of the product (fresh water) (UPC). The results show that the RO cycle has an optimal configuration grounded on max (CDI) and min (UPC). At identical UPC, the environmental effects of the RO system were less than those of the RRO. This is attributed to higher recovery with increasing temperature of discharged water into the sea in a smaller area and at a higher rate. For the RO system, the values for CDI, exergy efficiency, and fresh water production are 0.193, 45.6%, and 13.1 m3/h for R245ca fluid. Also, the share of RO and RRO in the total TAC costs is 19.44% and 17.33%, respectively. The R245ca working fluid is selected for both cycles, which is more productive than the other fluids. The results show that more than 50% recovery is achieved for the SW30HR-320 membrane at the optimum for the RO system.

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Thermo-economic analysis for determination of optimized connection between solar field and combined cycle power plant

Cited by 13 publications

References 31 publications

Towards High Solar Contribution in Hybrid CSP-Combined Cycle Gas Turbine Plants

Towards High Solar Contribution in Hybrid CSP-Combined Cycle Gas Turbine Plants

Artificial intelligence‐based tri‐objective optimization of different demand load patterns on the optimal sizing of a smart educational buildings

4E investigation of solar-driven RO and RRO osmotic desalination systems from water, energy, and environment relevance perspective: a comparative approach

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