Hybrid solar parabolic dish power plant and high‐temperature phase change material energy storage system

Abstract

Summary In this study, a conventional steam power plant with two regenerative boilers is considered, and one of its boilers is replaced with parabolic solar dish collectors and storing the produced thermal energy by the phase change material (PCM) in a storage tank. The results show the necessity of the existence of an auxiliary fired‐gas boiler to provide constant load during the whole 24 hours. The performance of the proposed hybridized system is evaluated through energy and exergy analyses. It was demonstrated that substituting solar collectors with one of the boilers marginally lowers the energy efficiency but increases the exergy efficiency of the whole power plant up to 41.76%. Moreover, it is found out that this hybridization decreases the total irreversibility of the power plant in comparison with the base case, from 51.1 to 47.2 MW. The parametric analysis states that raising the mass flow rate of the heat transfer fluid in the solar collectors not only enhances the system performance but also increases the volume of the PCM tank.

The microencapsulation, thermal enhancement, and applications of medium and high‐melting temperature phase change materials: A review

“…Mehrpooya et al 127 performed a numerical evaluation of an Iranian steam power plant with two regenerative boilers. Integrated solar disc collector and PCMs storage system was designed to take the place of one of the existing regenerative boilers.…”

Selection of waste thermoplastics for shape stabilized phase change materials using multicriteria techniques

“…2 Current applications of PCMs in buildings include air-conditioning, that is, free and passive cooling, 3 cold thermal storage media and absorption refrigeration (ice storage with no ice), under-floor heating systems, 4 heat pumps, 5 solar heating, waste heat storage, and heat recovery. 6 PCMs can be classified as solid-solid PCMs, solid-liquid PCMs, solid-gas PCMs and liquid-gas PCMs according to the phase change state of the materials. Among them, solidliquid PCMs are the most used PCMs today due to their high latent heat capacity and low volume changes during phase change compared to other PCM materials.…”

Technological assessment and modeling of energy‐related CO2 emissions for the G8 countries by using hybrid IWO algorithm based on SVM

“…The most widespread kinds of renewable energies can be mentioned as wind, solar, and geothermal energies. [8][9][10][11] Renewable energy sources are commonly used for electricity generation, desalination purposes, heating, etc. [12][13][14][15] Economic growth is one of the main criteria of any country development and has an intense influence on various issues such as promoting renewable energies or managing the upcoming global crisis such climate change, which is not detachable from the energy crisis.…”

“…Due to the lower greenhouse gas emission of renewable energy technologies, the utilization of renewable energies has significantly increased in the past few years. The most widespread kinds of renewable energies can be mentioned as wind, solar, and geothermal energies . Renewable energy sources are commonly used for electricity generation, desalination purposes, heating, etc .…”