Freight Surcharges. BAF refers to floating part of sea freight charges which represents additions due to oil prices. Usually BAF charges are determined by Carrier Conferences to be applicable for a certain period on a certain trade route. These Carrier Conferences are seen as a cartel for fixing prices.
Heat transfer. Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy (heat) between physical systems. Heat transfer is classified into various mechanisms, such as thermal conduction, thermal convection, thermal radiation, and transfer of energy by phase changes.
Heat is transferred in several different ways, either conduction, convection, and radiation. Regardless of the method of transfer, only heat can be transferred.Cold is simply the absence of heat and cannot be transferred by any method. Conduction is the transfer of heat from one molecule to another through a substance.Not all substances conduct heat at the same speed. Metals are considered good conductors since they can speedily transfer heat. Stone is also a moderately good conductor, but wood, paper, air, and cloth are poor heat conductors.old is simply the absence of heat and cannot be transferred by any method. Conduction is the transfer of heat from one molecule to another through a substance. Not all substances conduct heat at the same speed. Metals are considered good conductors since they can speedily transfer heat.