Numerical evaluation of indoor thermal comfort and energy saving by operating the heating panel radiator at different flow strategies

摘要

Enhancing the performance of central heating systems in buildings can play a major role in energy savings. Pulsed flow to the radiators can lead to enhancing the specific heat output of radiators. The aim of this work is to investigate the effect of radiator flow pulsation on the indoor spatial temperature and velocity distributions to achieve energy saving without compromising the user thermal comfort defined by ASHRAE standard 55 and EN ISO 7730. CFD modelling of panel radiators at constant and pulsed flows were carried out and the results were validated with published data. Such radiators were then incorporated in a room and CFD modelling of the room was carried out using flow pulsation strategies.