Fig. 3From: How to transport veterinary drugs in insulated boxes to avoid thermal damage by heating or freezingModel calculation of the time course of the inside temperature Θ B of the two virtual boxes X and Y depending on the size and the filling degree (heat capacity) of the boxes. The chosen parameters represent a summer (a) and a winter scenario (b) for drugs that must be stored either in a cool (2 °C ≤ Θ B ≤ 25 °C) or cold environment (2 °C ≤ Θ B ≤ 8 °C). For the summer scenario, the environmental temperature was Θ A = 30 °C and the initial temperature Θ B = 2 °C at t = 0 h. For the winter scenario, the environmental temperature was Θ A = −10 °C, and the initial temperature (t = 0 h), depending on the storage conditions (cool or cold), was Θ B = 25 °C and Θ B = 8 °C, respectivelyBack to article page