| Summary: | The report includes a study that underlies a development of a 3TEMP Hipster thermos. The report includes development of a new concept with suitable material that is supported by calculations. The entire process from requirement specification to a completed concept of the thermos is in detail described. The quality of the thermos in terms of usability and design has been beneath required level and is wished to be improved. A central part of the project includes a study of a spiral shaped tank consisting of spiral wound pipes as a alternative. The study showed by replacing the traditional cylindrical tank with a spiral shaped pipe instead resulted in an increased mass, higher heat loss while filling. However, the improved and increased isolation thickness results in a improved insulation effect than existing thermos that favor it while being used. The thermos contains a design that symbolise quality and exclusivity. The electropolished austenitic stainless steel SS-2333 is by the dimension 25.4 x 1.65 mm in order to allow roll bending as manufacturing method to create the tank system where the material also improved the quality of the thermos. The study also resulted in alternative material to apply for the thermos such as phenolic foam and austenitic stainless steel AISI 205 in order to increase the quality of the thermos. Also, Tomlinson tap is utilized to increase the usability for the customers. The solution of alternative is also presented as a geometry modelling in CAD and was shaped to meet 3TEMP’s requirements.
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