scholarly journals Designing an Automatic Control System for the Improved Functioning of a Solar Wall with Phase Change Material (PCM)

2016 ◽  
Vol 05 (01) ◽  
pp. 19-29 ◽  
Author(s):  
Patrick Favier ◽  
Laurent Zalewski ◽  
Stephane Lassue ◽  
Sohail Anwar
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Phase Change ◽  
Phase Change Material ◽  
Automatic Control System ◽  
Solar Wall ◽  
Change Material

scholarly journals Experimental study of small-scale passive solar wall module with phase change material and Fresnel lens

2018 ◽  
Vol 147 ◽  
pp. 467-473
Author(s):  
Toms Mols ◽  
Kristiana P. Dzene ◽  
Ruta Vanaga ◽  
Ritvars Freimanis ◽  
Andra Blumberga
Keyword(s):  
Experimental Study ◽  
Phase Change ◽  
Phase Change Material ◽  
Fresnel Lens ◽  
Small Scale ◽  
Passive Solar ◽  
Solar Wall ◽  
Change Material

scholarly journals Lithium Batteries Cooling by Phase Change Material Partially Filled with Metal Foam

2021 ◽  
Vol 312 ◽  
pp. 03002
Author(s):  
Bernardo Buonomo ◽  
Fabio d’Alesio ◽  
Oronzio Manca ◽  
Ferdinando Menale ◽  
Sergio Nardini
Keyword(s):  
Control System ◽  
Phase Change ◽  
Phase Change Material ◽  
Lithium Batteries ◽  
Metal Foam ◽  
Thermal Control ◽  
Local Thermal Equilibrium ◽  
Electric Cars ◽  
Thermal Control System ◽  
Change Material

Electric cars can be a turning point for climate problems. One of the main problems of electric cars is the thermal control of the batteries, since below and above a certain temperature range, the vehicle’s range decreases abruptly, creating inconveniences to the owners of these cars. The thermal control of lithium batteries for electric cars must take into account both the problems of thermal rise due to the operation of the battery itself, and the climatic conditions outside the vehicle that negatively affect the performance of the car, reducing both the autonomy and the battery life. In this study, a thermal control system based on a phase change material (PCM) partially filled with metallic foam is investigated to evaluate its possible use in the cooling of lithium batteries. A two-dimensional model is considered to numerically study thermal control with different chargedischarge cycles. The metal foam partially fills the PCM. The governing equations, written assuming the local thermal equilibrium for the metal foam, are solved by the finite volume method using the ANSYS Fluent commercial code. Different cases are simulated for different values of the external convective heat transfer coefficient. The results, carried out for metal foams and PCM, are given in terms of temperature and liquid fraction. In addition, some comparisons with pure PCM and fully foam filled PCM are provided within the thermal control system to show the advantages of the composite thermal control system with PCM inside the metal foam.

Phase Change Material Melting in an Energy Storage Module for a Micro Environmental Control System

2018 ◽  
Vol 10 (6) ◽  
Author(s):  
Mustafa Koz ◽  
H. Ezzat Khalifa
Keyword(s):  
Control System ◽  
Energy Consumption ◽  
Thermal Comfort ◽  
Phase Change ◽  
Phase Change Material ◽  
Environmental Control ◽  
Design Parameters ◽  
Airflow Rate ◽  
Local Cooling ◽  
Change Material

Abstract An experimentally validated finite element model (FEM) was developed to analyze the design parameters of a latent heat storage device (LHSD) for a micro environmental control system (μX). The μX provides local cooling to an office worker in a room whose thermostat setpoint has been elevated from 23.9 °C (75 °F) to 26.1 °C (79 °F) in order to reduce heating, ventilation, and air conditioning (HVAC) energy consumption. For this application, the LHSD is designed to provide ≥50 W of cooling for a full, 8.5 h workday to restore thermal comfort in the warm, 26.1 °C room. The LHSD comprises several parallel slabs of encased phase change material (PCM) with interposed airflow channels. The airflow rate is selected to obtain ≥50 W of cooling at the end of the 8.5 h operation. The LHSD exhibits a decreasing cooling rate over the 8.5 h period when a constant airflow is passed through it, indicating that more cooling is supplied during the day than the minimum 50 W required for thermal comfort. The parametric analysis explores the effects of PCM thermal conductivity, slab thickness, air channel width, and number of slabs on LHSD performance. Parametric cases are compared against each other on the basis of their required PCM mass and energy consumption.

Experimental study of small-scale solar wall integrating phase change material

Solar Energy ◽  
2012 ◽  
Vol 86 (1) ◽  
pp. 208-219 ◽  
Author(s):  
Laurent Zalewski ◽  
Annabelle Joulin ◽  
Stéphane Lassue ◽  
Yvan Dutil ◽  
Daniel Rousse
Keyword(s):  
Experimental Study ◽  
Phase Change ◽  
Phase Change Material ◽  
Small Scale ◽  
Solar Wall ◽  
Change Material

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
Sign in / Sign up

Export Citation Format

Share Document