Eventos Anais de eventos
COBEM 2021
26th International Congress of Mechanical Engineering
EFFECTS OF INPUT TEMPERATURE PROFILE IN THE DESIGN OF CONTINUOUS-FLOW SENSIBLE-THERMAL ENERGY STORAGE SYSTEMS
Submission Author:
Conrado Ermel , RS , Brazil
Co-Authors:
Conrado Ermel, Paulo Smith Schneider, Marcus Bianchi
Presenter: Conrado Ermel
doi://10.26678/ABCM.COBEM2021.COB2021-0161
Abstract
Several thermal processes require a stable temperature profile to be effective. Thermal energy storage stands as a promising technology to stabilize such processes, having been widely employed for short and long-time storage, from small domestic solutions up to large facilities used to support renewables intermittency. The design of Thermal Energy Storage Systems (TESS) is still challenging, no matter the chosen technology. The present work considers the influence of different input temperature profiles on the operation and design of continuous-flow sensible-TESS. By using a Lumped Element Model (LEM) and a design optimization procedure, we determined the impact of the energy source characteristics on the operation and the geometrical arrangement of a TESS. Preliminary results revealed that the thermal amplitude of the studied TES is augmented by 24% when switching from a sinusoidal temperature profile to a Heaviside step function signal. Such deviation indicates the relevance of considering the input temperature profile in TESS design, in addition to other common parameters such as the system power, energy density, and capacity.
Keywords
Thermal Energy Storage, TES, sensible heat, TES Design, Temperature Profile
