Liquid nitrogen is typically delivered in large dewars by suppliers to a jobsite. In many applications nitrogen vapor is required, so it is necessary to provide a means for evaporating the liquid nitrogen. Design such an evaporator, capable of delivering nitrogen vapor at a rate of 125 g/min. Your design should consider equipment cost, required floor space and operating cost. You should also consider that most end-users do not want to be bothered with complex equipment. Hence, a very simple, yet effective and safe system is required.