Numerical Calculation and Simulation on Melting and Solidification Time Periods of a Phase Change Material

2012 ◽  
Vol 455-456 ◽  
pp. 374-381
Author(s):  
Xiao Qin Sun ◽  
Quan Zhang ◽  
Ying Jun Liu ◽  
Hong Xing Yang ◽  
Lin Feng Zhang ◽  
...  
Keyword(s):  
Numerical Calculation ◽  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Characteristics ◽  
Renewable Energy Resources ◽  
Calculation Results ◽  
Change Material ◽  
Melting And Solidification ◽  
Main Factor

Energy storage technology is becoming more important nowadays due to use of renewable energy resources. The heat transfer performance of a PCM (phase change material) which is the carrier of energy is the main factor that affects its utilization. This paper presents the thermal characteristics of the PCM-20. An energy storage module is designed based on the numerical calculation results from the MATLAB. Numerical simulation about this module is carried out by CFD software. The simulation results have been compared with the results of numerical calculation and the error between them has been analyzed and discussed.

scholarly journals Solar energy storage and release application of water-phase change material- (SnO2-TaC) and (SnO2–SiC) nanoparticles system

2019 ◽  
Vol 8 (2) ◽  
pp. 154
Author(s):  
Farhan Lafta Rashid ◽  
Aseel Hadi ◽  
Ammar Ali Abid ◽  
Ahmed Hashim
Keyword(s):  
Polyethylene Glycol ◽  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Water Phase ◽  
Sic Nanoparticles ◽  
Solar Energy Storage ◽  
Change Material ◽  
Melting And Solidification

<p>The thermal energy  storage and release application of water- phase change material- (SnO<sub>2</sub>-TaC) and (SnO<sub>2</sub>–SiC) nanoparticles system has been investigated for cooling and heating applications. The water - polyethylene glycolwith (SnO<sub>2</sub>-TaC) and (SnO<sub>2</sub>–SiC) nanoparticles have been used. The results showed that the melting and solidification times for storage and release of thermal energy of water - polyethylene glycoldecrease with increase in(SnO<sub>2</sub>-TaC) and (SnO<sub>2</sub>–SiC) nanoparticles concentrations. The melting and solidification times decrease with increasing of TaC nanoparticles concentrations to water-polyethylene glycol/SnO<sub>2</sub>nanofluidand SiC nanoparticles concentrations to water-polyethylene glycol/SnO<sub>2</sub>nanofluid.<strong></strong></p>

Numerical Model of Time-Dependent Gas Flows Through Bed of Granular Phase Change Material

2019 ◽  
Vol 17 (06) ◽  
pp. 1950010 ◽  
Author(s):  
Nickolay A. Lutsenko ◽  
Sergey S. Fetsov
Keyword(s):  
Mathematical Model ◽  
Energy Storage ◽  
Phase Change ◽  
Numerical Method ◽  
Phase Change Material ◽  
Time Dependent ◽  
Finite Difference Schemes ◽  
Gas Flows ◽  
Calculation Results ◽  
Change Material

A novel mathematical model and original numerical method for investigating time-dependent gas flows through a bed of granular phase change material (PCM) are proposed and described in detail. Such material is modeled as a porous medium, and continua mechanics method are used for constructing the mathematical model. The numerical method is based on a combination of explicit and implicit finite-difference schemes. Comparison of calculation results with known experimental data demonstrates a very good coincidence. The results of the study can be applied in modeling the thermal energy storage with granular PCM in advanced adiabatic compressed air energy storage and other heat storage devices.

Numerical Calculation and Simulation on Melting and Solidification Time Periods of a Phase Change Material

2012 ◽  
Vol 455-456 ◽  
pp. 374-381
Author(s):  
Xiao Qin Sun ◽  
Quan Zhang ◽  
Ying Jun Liu ◽  
Hong Xing Yang ◽  
Lin Feng Zhang ◽  
...  
Keyword(s):  
Numerical Calculation ◽  
Phase Change ◽  
Phase Change Material ◽  
Solidification Time ◽  
Time Periods ◽  
Change Material ◽  
Melting And Solidification

scholarly journals Characterization and Experimental Investigation of NaNO3 : KNO3 as Solar Thermal Energy Storage for Potential Cooking Application

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Elias Wagari Gabisa ◽  
Abdulkadir Aman
Keyword(s):  
Energy Source ◽  
Experimental Investigation ◽  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Thermal Characteristics ◽  
Solar Thermal ◽  
Solar Thermal Energy ◽  
Change Material

Household cooking is a major energy intensive activity in most of the Ethiopian households. Replacing the existing inefficient cooking stoves and the polluting energy source with a renewable source of energy plays a paramount role in conserving the environment and reducing the indoor pollution. In this study an energy storage phase change material is proposed to store solar thermal energy for a potential household cooking application. The selected phase change material has a melting point range which is well fitted to the operating range of temperatures for most of the household cooking activities. The solar energy source is simulated with electrical heating for experimental investigation of the thermal characteristics. Also it is intended to study the thermal characteristics of the mixture using deferential scanning calorimeter to identify at which mass ratio the mixture shows better thermal characteristics. From the laboratory analysis it is found that the 60% NaNO3 and 40% KNO3 by mass have shown promising thermal characteristics. For applying the selected salt mixture for cooking application, an experiment was conducted on two Ethiopian local meals, shiro wet and potato meal, to know how much energy is required to cook them and what amount of the PCM is required to store the required energy. The result reveals that 2.38 kWh energy is required for cooking the two meals for five family members for lunch and dinner. To store the energy required 4 kg of the PCM was required. Experiments were conducted to see the charging and discharging time of 60% NaNO3 and 40% KNO3 by mass. From the experimental result for 1.4 kg of the PCM, charging time of 50 minutes up to 300°C and a discharging time of 4.5 hours (from 300°C to 100°C) are required.

Preparation and thermal characteristics of caprylic acid based composite as phase change material for thermal energy storage

2019 ◽  
Vol 6 (10) ◽  
pp. 105051 ◽  
Author(s):  
P Sivasamy ◽  
S Harikrishnan ◽  
R Jayavel ◽  
S Imran Hussain ◽  
S Kalaiselvam ◽  
...  
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Caprylic Acid ◽  
Thermal Characteristics ◽  
Change Material

scholarly journals Design and Fabrication of Solar Thermal Energy Storage System Using Potash Alum as a PCM

Energies ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 6169
Author(s):  
Muhammad Suleman Malik ◽  
Naveed Iftikhar ◽  
Abdul Wadood ◽  
Muhammad Omer Khan ◽  
Muhammad Usman Asghar ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Thermal Energy ◽  
Phase Change Materials ◽  
Storage System ◽  
Energy Storage System ◽  
Renewable Energy Resources ◽  
Change Material

Renewable energy resources like solar energy, wind energy, hydro energy, photovoltaic etc. are gaining much importance due to the day by day depletion of conventional resources. Owing to the lower efficiencies of renewable energy resources, much attention has been paid to improving them. The concept of utilizing phase change materials (PCMs) has attracted wide attention in recent years. This is due to their ability to extract thermal energy when used in collaboration with photovoltaic (PV), thus improving the photoelectric conversion efficiency. In this paper, the objective is to design and fabricate a novel thermal energy storage system using phase change material. An investigation on the characteristics of Potash Alum as a phase change material due to its low cost, easy availability and its usage as an energy storage for the indoor purposes are taken into account. The use of a latent heat storage system using phase change materials (PCMs) is an effective way of storing thermal energy and has the advantage of high-energy storage density and the isothermal nature of the storage process. In the current study, potash alum was identified as a phase change material combined with renewable energy sources, that can be efficiently and effectively used in storing thermal energy at compartively lower temperatures that can later be used in daily life heating requirements.A parabolic dish which acts of a heat collector is used to track and reflects solar radiation at a single point on a receiver tank. Heat transfer from the solar collector to the storage tank is done by using a circulating heat transfer fluid with the help of a pump. The experimental results show that this system is capable of successfully storing and utilizing thermal energy on indoor scale such as cooking, heating and those applications where temperature is below 92 °C.

NUMERICAL STUDY OF A SOLAR GREENHOUSE DRYER WITH A PHASE-CHANGE MATERIAL AS AN ENERGY STORAGE MEDIUM

2018 ◽  
Vol 49 (6) ◽  
pp. 509-528 ◽  
Author(s):  
Orawan Aumporn ◽  
Belkacem Zeghmati ◽  
Xavier Chesneau ◽  
Serm Janjai
Keyword(s):  
Energy Storage ◽  
Phase Change ◽  
Phase Change Material ◽  
Numerical Study ◽  
Storage Medium ◽  
Solar Greenhouse ◽  
Change Material
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