Concentrated solar energy system and cold thermal energy storage (process development and energy analysis)

2020 ◽  
Vol 37 ◽  
pp. 100607 ◽  
Author(s):  
Bahram Ghorbani ◽  
Mehdi Mehrpooya
Keyword(s):  
Energy Storage ◽  
Solar Energy ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Energy Analysis ◽  
Process Development ◽  
Energy System ◽  
Storage Process ◽  
Concentrated Solar Energy

Microencapsulated phase change slurries for thermal energy storage in a residential solar energy system

2011 ◽  
Vol 36 (11) ◽  
pp. 2932-2939 ◽  
Author(s):  
M.J. Huang ◽  
P.C. Eames ◽  
S. McCormack ◽  
P. Griffiths ◽  
N.J. Hewitt
Keyword(s):  
Energy Storage ◽  
Solar Energy ◽  
Phase Change ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Energy System

scholarly journals Energy and Exergy Analyses of a Solar-based Multi-generation Energy Plant Integrated with Heat Recovery System and Thermal Energy Storage

2020 ◽  
Author(s):  
Shayan Sadeghi ◽  
Samane Ghandehariun ◽  
Behnaz Rezaie
Keyword(s):  
Energy Storage ◽  
Solar Energy ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
System Performance ◽  
Heat Recovery ◽  
Ternary Eutectic ◽  
Energy System ◽  
Design Parameters ◽  
Energy And Exergy

An innovative multigeneration energy system driven by solar energy is proposed in this paper. The integrated model produces electricity, hydrogen, oxygen, and steam for heating purposes. The energy system comprises a pressurized cavity-based solar power tower, latent thermal energy storage (TES) unit, unfired gas turbine (GT) unit, regenerative steam Rankine cycle (SRC), copper-chlorine (Cu-Cl) thermochemical cycle, and heat recovery units. By utilization of a high-temperature ternary eutectic phase change material (PCM), a dynamic model is developed to deal with the intermittency of solar energy. Using energy and exergy approaches, the proposed system is investigated to assess exergy destruction rates and the overall system performance. A parametric study is performed to investigate the influence of design parameters such as the number of heliostats, the pressure ratio of GT, and temperatures of reactions on the system performance. The results showed that the energy system produces electricity, steam, hydrogen, and oxygen at a rate of 41.9 MW, 12.6 kg/s, 0.19 kg/s, and 0.76 kg/s, respectively. Energy and exergy efficiencies of the integrated system are found to be 49.9%, and 44.9%, respectively.

Thermodynamic Performance of Ice Thermal Energy Storage Systems

2000 ◽  
Vol 122 (4) ◽  
pp. 205-211 ◽  
Author(s):  
Marc A. Rosen ◽  
Ibrahim Dincer ◽  
Norman Pedinelli
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Energy Analysis ◽  
Average Energy ◽  
Cooling Capacity ◽  
Energy And Exergy ◽  
Thermodynamic Performance ◽  
And Performance ◽  
Thermal Energy Storage Systems

The thermodynamic performance of an encapsulated ice thermal energy storage (ITES) system for cooling capacity is assessed using exergy and energy analyses. A full cycle, with charging, storing, and discharging stages, is considered. The results demonstrate how exergy analysis provides a more realistic and meaningful assessment than the more conventional energy analysis of the efficiency and performance of an ITES system. The overall energy and exergy efficiencies are 99.5 and 50.9 percent, respectively. The average exergy efficiencies for the charging, discharging, and storing periods are 86, 60, and over 99 percent, respectively, while the average energy efficiency for each of these periods exceeds 99 percent. These results indicate that energy analysis leads to misleadingly optimistic statements of ITES efficiency. The results should prove useful to engineers and designers seeking to improve and optimize ITES systems. [S0195-0738(00)00904-3]

Solar Energy Storage

2014 ◽  
pp. 1550-1578
Author(s):  
Ahmed Elgafy
Keyword(s):  
Energy Storage ◽  
Solar Energy ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Research Work ◽  
Feasibility Studies ◽  
Green Energy ◽  
Advanced Materials ◽  
Solar Thermal Energy ◽  
Solar Energy Storage

With the urgent need to harvest and store solar energy, especially with the dramatic unexpected changes in oil prices, the design of new generation of solar energy storage systems has grown in importance. Besides diminishing the role of the oil, these systems provide green energy which would help reducing air pollution. Solar energy would be stored in different forms of energy; thermal, electric, hybrid thermal/electric, thermochemical, photochemical, and photocapacitors. The nature of solar energy, radiant thermal energy, magnifies the role and usage of thermal energy storage (TES) techniques. In this chapter, different techniques/technologies for solar thermal energy storage are introduced for both terrestrial and space applications. Enhancing the performance of these techniques using nanotechnology is introduced as well as using of advanced materials and structures. The chapter also introduces the main features of the other techniques for solar energy storage along with recent conducted research work. Economic and environment feasibility studies are also introduced.

Solar Energy Storage

2013 ◽  
pp. 19-47 ◽  
Author(s):  
Ahmed Elgafy
Keyword(s):  
Energy Storage ◽  
Solar Energy ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Research Work ◽  
Feasibility Studies ◽  
Green Energy ◽  
Advanced Materials ◽  
Solar Thermal Energy ◽  
Solar Energy Storage

With the urgent need to harvest and store solar energy, especially with the dramatic unexpected changes in oil prices, the design of new generation of solar energy storage systems has grown in importance. Besides diminishing the role of the oil, these systems provide green energy which would help reducing air pollution. Solar energy would be stored in different forms of energy; thermal, electric, hybrid thermal/electric, thermochemical, photochemical, and photocapacitors. The nature of solar energy, radiant thermal energy, magnifies the role and usage of thermal energy storage (TES) techniques. In this chapter, different techniques/technologies for solar thermal energy storage are introduced for both terrestrial and space applications. Enhancing the performance of these techniques using nanotechnology is introduced as well as using of advanced materials and structures. The chapter also introduces the main features of the other techniques for solar energy storage along with recent conducted research work. Economic and environment feasibility studies are also introduced.

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