APPLICATION OF COMPUTATIONAL FLUID DYNAMIC (CFD) TECHNIQUE IN THERMAL AND AIRFLOW IMPROVEMENT OF TM’S TYPE
A OUTDOOR CABINETS, BATTERY COMPARTMENT
This research was supported by TM Bhd. Project No. R04-0576-0
Abstract
In this paper we are presenting the thermal and airflow improvement of battery compartment in a TYPE A TM’s outdoor cabinet’s (one of the cabinets) by using the CFD technique. It solves the convection and temperature problems within the battery compartment by giving the best fan and its best location for better ventilation inside. The simulation and measurement results show the improvement of airflow and the temperature uniformity, thus also improve the charging scheme of the batteries.
Keywords - Outdoor Cabinet, Battery Compartment, Temperature Uniformity.
1.0 INTRODUCTION
The thermal condition of the battery is also dependent on its environment. If its temperature is above the ambient temperature it will loose heat through conduction, convection and radiation. If the ambient temperature is higher, the battery will gain heat from its surroundings. When the ambient temperature is very high the thermal management system has to work very hard to keep the temperature under control. The battery must be kept within a limited operating temperature range so that both charge capacity and the life cycle can be optimised. A practical system especially in the tropical region may therefore need a cooling element to keep it not just within the battery manufacturer's specified working limits, but within a more stringent range to achieve optimal performance 作者: 往事飘去 时间: 2011-5-1 09:09
