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  1. StevenMorrow

    Best method for welding of large Polypropylene part

    Good day, I have been tasked with determining how best to make a shallow version of one of our existing products (injection moulded in UV-stabilised, impact modified PP, L x B = 1m by 1.2m). I think that the best way to do this would be to cut out the middle section and to then weld the top and...
  2. StevenMorrow

    Determining the COP (Coefficient of Performance) of a heat pump system

    Hello engineers! [peace] I am investigating the factors affecting the COP value of a proposed heat pump system used to prepare air for use in an automotive spray booth. This is a very low lift application (typically taking the air from around 15 degrees up to the required 23.9) and thus, using...

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