A techno-economic comparison of a photovoltaic/thermal organic Rankine cycle with several renewable hybrid systems for a residential area in Rayen, Iran

Jahangir, Mohammad Hossein; Mousavi, Seyed Ali; Rad, Mohammad Amin Vaziri

doi:10.1016/j.enconman.2019.05.010

Cited by 87 publications

(22 citation statements)

References 57 publications

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“…While the annual load growth rate is considered in this study, a practical technique that improves the flexibility of the system was not suggested by the authors. In another study [75], a hybrid Organic Rankine Cycle (ORC) is proposed and optimized for a household in Rayen, Iran. The exergy and exergo-economic analyses of hybrid ORC are also performed.…”

Section: Literature Reviewmentioning

confidence: 99%

Techno-Economic Planning and Operation of the Microgrid Considering Real-Time Pricing Demand Response Program

et al. 2021

Energies

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The optimal planning of grid-connected microgrids (MGs) has been extensively studied in recent years. While most of the previous studies have used fixed or time-of-use (TOU) prices for the optimal sizing of MGs, this work introduces real-time pricing (RTP) for implementing a demand response (DR) program according to the national grid prices of Iran. In addition to the long-term planning of MG, the day-ahead operation of MG is also analyzed to get a better understanding of the DR program for daily electricity dispatch. For this purpose, four different days corresponding to the four seasons are selected for further analysis. In addition, various impacts of the proposed DR program on the MG planning results, including sizing and best configuration, net present cost (NPC) and cost of energy (COE), and emission generation by the utility grid, are investigated. The optimization results show that the implementation of the DR program has a positive impact on the technical, economic, and environmental aspects of MG. The NPC and COE are reduced by about USD 3700 and USD 0.0025/kWh, respectively. The component size is also reduced, resulting in a reduction in the initial cost. Carbon emissions are also reduced by 185 kg/year.

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Section: Literature Reviewmentioning

confidence: 99%

Techno-Economic Planning and Operation of the Microgrid Considering Real-Time Pricing Demand Response Program

et al. 2021

Energies

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“…The indirect cost includes contractor cost, owner cost, fee, and insurance. A list of cost functions of components is shown as follows [22][23][24][25][26][27] :…”

Section: Pelton Turbinementioning

confidence: 99%

“…The indirect cost includes contractor cost, owner cost, fee, and insurance. A list of cost functions of components is shown as follows 22‐27 :

{cost}_{pump} = 308.9 \cdot {(W_{italicpump} / 1000)}^{0.45}

{cost}_{turb} = 9000 \cdot {(W_{italicturb} / 1000)}^{0.7} / H^{0.35}

{cost}_{vessel} = 1.218 \cdot italicexp [2.631 + 1.3673 \cdot ((), \ln V_{vessel}) - 0.06309 \cdot {((), \ln V_{vessel})}^{2}]

{cost}_{wst} = 5.5663 \cdot (196.22 \cdot {(V_{italicwst} / 4046)}^{0.54} + 0.001 \cdot {(V_{italicwst} / 4046)}^{0.87} \cdot 10000)

{cost}_{valve} = 114.5 \cdot {\dot{m}}_{valve}

{cost}_{pipe} = 1.3129 \cdot {(D_{italicpipe} / 0.0254)}^{1.1052} \cdot ((), L_{pipe} / 0.3048)

{cost}_{italicmotor / italicgen} ...

…”

Section: Mathematical Modellingmentioning

confidence: 99%

Performance investigation of a novel near‐isothermal compressed air energy storage system with stable power output

Zhao

Lai

et al. 2020

Int J Energy Res

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As one of the grid-scale energy storage technologies, compressed air energy storage (CAES) is promising to facilitate the permeability of renewable energies. By integrating CAES into renewable sources, the fluctuation and intermittence of renewable energies could be effectively restrained. Among various CAES system configurations, isothermal CAES (I-CAES) is considered as a most competitive technology with expected high efficiency. However, most of the existing I-CAES systems have trouble in keeping a stable power output. To address this issue, a novel near-isothermal CAES system is proposed in this article to acquire a near stable power output. Imitating the concept of hydraulic accumulator, a two pressure vessels structure is employed to maintain the gas pressure stable during discharging. Besides, the turbine power output can be controlled by adjusting the liquid flow rate of the Pelton turbine under this near constant pressure condition. Based on the system transient model and economic model, the system components transient behavior, parametric analysis, off-design performance analysis and economic evaluation issues are also conducted. Results show that system round trip efficiency (RTE) with 61.42% and energy density (ED) with 0.2015 kWh/m 3 can be achieved under design condition. In the discharge process, the gas pressure in vessel varies in a small range, from 68 to 72 bar, which is relatively stable. The power output from Pelton turbine can be maintained around 1 kW. Meanwhile, the initial pressure, the pipe diameter, and the spraying flow rates of circulating pumps have significant effects on system RTE and ED. Furthermore, the Pelton turbine power output level can be adjusted by adding jets number, and the higher storage pressure can make the power output unsteady. Abbreviations: A-CAES, adiabatic compressed air energy storage; CAES, compressed air energy storage; D-CAES, diabatic compressed air energy storage; ED, energy density; EES, electrical energy storage; GLIDES, ground-level integrated diverse energy storage; HyPES, hydro-pneumatic energy storage; I-CAES, isothermal compressed air energy storage; LCOE, levelized cost of electricity; O&M, operation and maintenance cost; PD, positive displacement; PHS, pumped hydro storage; RTE, round trip efficiency; TES, thermal energy storage.

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“…HOMER considers several possible scenarios that are able to deal with the energy demands of the loads and obtain the least cost configuration of the hybrid power system. The authors of [39,40] show some examples of how HOMER software can be used for sizing real hybrid systems. A complete review of research studies based on HOMER for studying hybrid systems can be found in [41].…”

Section: Hybrid Charging Station For Ev and Fcvmentioning

confidence: 99%

Optimised operation of power sources of a PV/battery/hydrogen‐powered hybrid charging station for electric and fuel cell vehicles

García‐Triviño

Torreglosa

Ramírez

2019

IET Renewable Power Generation

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This study presents a new energy management system (EMS) for the optimised operation of power sources of a hybrid charging station for electric vehicles and fuel cell vehicles. It is composed of a photovoltaic (PV) system, a battery and a hydrogen system as energy storage systems (ESSs), a grid connection, six fast charging units and a hydrogen supplier. The proposed EMS is designed to reduce the utilisation costs of the ESS and make them work, as much as possible, around their maximum efficiency points. The optimisation function depends on a cost prediction system that calculates the net present cost of the components from their previous performance and a fuzzy logic system designed for improving their efficiency. Finally, a particle swarm optimisation algorithm is used to solve the optimisation function and obtain the required power for each ESS. The proposed EMS is checked under Simulink environment for long-term simulations (25 years). By comparing the EMS with a simpler one that optimises only the costs, it is proved that the proposed EMS achieves better efficiency of the charging station (+7.35%) and a notable reduction in the loss of power supply probability (−57.32%) without compromising excessively its average utilisation cost (+1.81%). Nomenclature Modelling of the hybrid charging station A ELZ constant B ELZ constant CAP nominal capacity of the hydrogen tank Cycle H2 cycle between 0 and the current power Cycle H2 nom

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A techno-economic comparison of a photovoltaic/thermal organic Rankine cycle with several renewable hybrid systems for a residential area in Rayen, Iran

Cited by 87 publications

References 57 publications

Techno-Economic Planning and Operation of the Microgrid Considering Real-Time Pricing Demand Response Program

Techno-Economic Planning and Operation of the Microgrid Considering Real-Time Pricing Demand Response Program

Performance investigation of a novel near‐isothermal compressed air energy storage system with stable power output

Optimised operation of power sources of a PV/battery/hydrogen‐powered hybrid charging station for electric and fuel cell vehicles

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