Heat and mass transfer phenomena occurring in cold storage chambers for vegetables have been modelled in the paper on the example of the experimental Chinese cabbage cold store. Special attention has been given to the problem of modelling of interrelationship between phenomena occurring in the bulk of vegetables and in the heat exchanger of a cooling unit, accomplished through User Defined Functions UDF so that the cooling capacity and the transpiration and respiration in the bed of cabbage were closely related. The comparisons between simulation and experimental results were conducted in order to indicate further improvements to the model