Design and analysis of an integrated concentrated solar and wind energy system with storage

Abstract

Summary This study analyzes a renewable energy‐driven innovative multigeneration system, in which wind and solar energy sources are utilized in an efficient way to generate several useful commodities such as hydrogen, oxygen, desalted water, space cooling, and space heating along with electricity. A 1‐km2 heliostat field is considered to concentrate the solar light onto a spectrum splitter, where the light spectrum is separated into two portions as reflected and transmitted to be used as the energy source in the concentrated solar power (CSP) and concentrated photovoltaics (CPV) receivers, respectively. As such, CSP and CPV systems are integrated. Wind energy is proposed for generating electricity (146 MW) or thermal energy (138 MW) to compensate the energy need of the multigeneration system when there is insufficient solar energy. In addition, multiple commodities, 46 MW of electricity, 12 m3/h of desalted water, and 69 MW of cooling, are generated using the Rankine cycle and the rejected heat from its condenser. Further, the heat generated on CPV cells is recovered for efficient photovoltaic conversion and utilized in the space heating (34 MW) and proton exchange membrane (PEM) electrolyzer (239 kg/h) for hydrogen production. The energy and exergy efficiencies of the overall system are calculated as 61.3% and 47.8%, respectively. The exergy destruction rates of the main components are presented to identify the potential improvements of the system. Finally, parametric studies are performed to analyze the effect of changing parameters on the exergy destruction rates, production rates, and efficiencies.

Performance Assessment of Spectrum Selective Nanofluid‐Based Cooling for a Self‐Sustaining Greenhouse

“…The range of flashing temperature can be found from Equation (12)where and are brine temperatures in the first and last stages, respectively. The is the amount of distillate produced from the condensation of 1 kg of steam at an average temperature corresponding to the 2330 kJ kg −1 latent heat and can be expressed as follows [ 23 ] where is the heat supplied to the desalination unit. The gain ratio (GR) is found usingwhere is the latent heat of steam at atmospheric pressure.…”

“…Ozlu and Dincer [ 22 ] thermodynamically analyzed an integrated system powered by solar energy and found that it was capable to produce 0.04 kg s −1 of distilled water. Sezer et al [ 23 ] suggested an integrated system that utilizes solar and wind energies to provide heating and cooling, electricity, hydrogen, and freshwater. The gain ratio and PR of the desalinated unit were computed as 14.36 and 14.82, respectively.…”

Application of the concept of a renewable energy based‐polygeneration system for sustainable thermal desalination process—A thermodynamics' perspective

“…Recently, several studies tackled the design and analysis of novel multigeneration systems utilizing different renewable energy sources. Some proposed designs operate with solar energy‐based systems, 4-6 wind and solar hybrid systems, 7,8 solar‐ocean hybrid system, 9 solar and hydrogen‐based systems, 10 solar and geothermal‐based systems, 11-13 biomass‐based systems, 14,15 etc.…”

Maximum efficiencies and parametric optimum designs of concentrating photovoltaic cell/heat engine systems with three‐band spectrum split

“…This approach is unaffected by the current mismatch and is helpful to reduce the use of stringent tracking and cooling techniques because it is operated at low optical concentrations . The spectrum splitting approach can also be utilized in several hybrid systems to make full use of the incident solar spectrum, such as multijunction solar cell systems, photovoltaic (PV)/thermal spectrum splitting systems, photovoltaic/hydrogen spectrum splitting systems, and energy storage . Study on the spectrum splitting systems has been conducted early.…”