CP5065-2021S1-2A01-Group3

 Reflection: In week 6, we learnt another product design considerations beside MFD and DFM which was sustainable development. This lesson covers about product life cycle and cradle-to-cradle design for our chemical product. It is important to design a product that will not cause adverse reactions or impact on the environment. To do this, we need to design sustainability which is to consider the environmental, social and economic impacts from the initial phase to the end phase of the product (aka product life cycle). A typical product life cycle consists of 6 stages and it starts with raw materials which will undergo manufacturing to become the product. After, it will be packed into boxes and distributed for users/consumers. As the consumers use the product, the product will age and hence will be disposed. As this is a cycle, there should be a link from disposal (last stage) to raw materials (first stage). However, in a typical product life cycle, there is no link and hence cradle-t...

 Pre-practical 1. What is an air lift pump? How does it work? An air-lift pump is a device that lifts water from a lower surface such as a well or a sump through the injection of compressed air directly into the water inside of a discharge pipe at a point below the water level in the well.  In air-lift pumps, compressed air is mixed with water. Its working principle lies on the buoyancy of air-water mixture which is more than buoyant than water without air. When compressed air is introduced, a mixture of air and water is formed on the longer length of the U-shaped tube. Thus, the air-water mixture is forced upward until it discharges over the top of the U-shaped tube. 2. Making of an air lift pump     1) Measure and mark 5cm from the base of the U-shaped tube.     2) Cut a hole in the 5cm mark.     3) Insert connector and air-line pipe from the air-lift pump to the U-shaped tube.     4) Insert the attached air-line pipe with the U-shaped...

Reflection COWS method is an important decision matrix used in the material selection process to evaluate and eventually select the best material that fits the design requirements, environmental considerations, availability, manufacturing process and mos t importantly, cost. COWS method consists of criteria, options, weightage and score.  The criteria chosen are translation of product requirements into material properties (eg high thermal conductivity for a cooking pan), service requirements, economic requirements and fabrication requirements. A rating scale of 1-3 or 1-5 is usually used during scoring where 1 is the poorest and 3 or 5 is the best. Although we have learnt this before last year, it was good to refresh and recap the things we have learnt in MFD to apply and understand its fundamentals in this module again for designing a chemical product. Group Assignment Our group was tasked with selecting a suitable material for the inner wall of a thermoflask that will be in conta...

Reflection For Week 3, we were introduced to the SCAMPER method to help us generate many possibilities and ideas for our researched identified gap. The topic for this week was to select our ideas and narrow it down to one single best idea. We sieved out ideas through the use of feasibility which analyses on whether the project would be viable and lastly narrowing it down to the best idea through COWS method which we have learnt in the module CP5091. We were tasked to make 8 selected ideas using the SCAMPER method then narrowing it to 3 best ideas through feasibility analysis and finally selecting the best single idea through COWS method. The generation of our ideas can be seen in activity 1 and activity 2. Problems faced during selection of ideas - Understanding the SCAMPER method whether we had to include ideas using all the SCAMPER or crafting ideas for each SCAMPER acronym.  - Came up with 2 best ideas for our self-watering system but we're in a dilemma as both the ideas are req...