4th International Conference on Dynamics in Logistics
Bremen, 10-14 Februar 2014
Auf der vierte internationale Konferenz "Dynamics in Logistics" (
LDIC 2014) werden vom 10. bis zum 14. Februar 2014 zwei Beiträge aus dem Projekt Intelligenter Container praesentiert:
Airflow behavior under different loading schemes and its correspondence to temperature in perishables transported in refrigerated containers
Chanaka Lloyd, Reiner Jedermann and Walter Lang
Supply chains are a highly evolving line of trading. The cool chains responsible for transportation of perishables are one sub category that is demanding technological support to reduce the quality related losses that they suffer due to temperature variations, among other reasons. Even distribution and ventilation of refrigerated air inside containers is imperative to maintain the perishables at the desired temperature range, avoiding degradation and spoilage.
However, lack of research on airflow movement behavior -- and convenient means of measuring spatial airflow speed -- within packed containers makes it difficult to determine the hot spot scenarios, which is a prime cause of the said degradation. This paper presents a methodology to parametrically measure spatial airflow and analyzes the airflow behavior under different container loading schemes and how the airflow affects the internal pallet temperature.
Airflow Simulation inside Reefer Containers
Safir Issa and Walter Lang
Transporting of sensitive commodities in strict ambient conditions becomes necessity not only to fulfill regulations but also to maintain their quality and to reduce the losses rate. Temperature, which is mainly affects the transported produce, is controlled by airflow pattern in reefer containers.
Consequently, obtaining airflow pattern enables predicting hot spots and then taking the necessary actions to minimize their effects. We present in this paper, a k-e simulation model to evaluate airflow pattern in reefer container loaded with bananas. Simulation results predict the place of the hot spots.
Moreover, we found that the cooling distribution is improved by modification of the scheme for placing pallets in the container, the so called chimney layout.