What is a chemical product by the way💡?:
A chemical product is a product which is designed or manufactured using chemical engineering principles. There are some examples of chemical engineering principles which we have learned in last semester such as fluid flow, heat transfer and others. Here comes another question: What is chemical product design😲? Well, it is a process which chemical products are designed and developed.
Besides that, there are 4 categories of chemical products which are commodities, chemical devices, molecular products and micro-structured products. Below is the summary of these 4 categories of chemical products:
1. Commodities
Made in large quantities
Sold at the lowest possible price
The traditional focus of chemical engineering
Made through reaction engineering and unit operations
2. Chemical devices
Miniature processes which accomplish a particular chemical transformation
Provides convenience
3. Molecular products
Possess a specific chemical structure
Discovered through research
4. Micro-structured products
Products with specific function
For the activity conducted for week 1, we came out with a household appliance which was hair dryer.
Broad Category: Household
Sub-category: Appliances
Chemical Product: Hair Dryer
Figure 1 : Inner side of hair dryer
1. Describe how chemical engineering principles have been applied in the design and/ or manufacture of the identified chemical product.
Answer:
The hair dryer dries our hair by evaporation. The hot air emitted from hair dryer causes our hair temperature to increase, and allows our hair to dry fast in a short time. This is because since the temperature of our surrounding hair increases, the water droplets in our hair experiences phase change and higher temperature causes to be easier to overcome the forces of attraction between water molecules which changes from liquid phase to gas phase.
(HowStuffWorks, 2021)
2. Categorize your chemical product idea and explain why you classify it under that particular category.
Answer:
Chemical device. It is because hot air emitted from hair dryer undergoes chemical processes such as evaporation, which means it evaporates water droplets on our hair and cause water droplets to become gas phase.
References:
1. HowStuffWorks, 2021. How Hair Dryers Work. [online] HowStuffWorks. Available at: <https://home.howstuffworks.com/hair-dryer.htm> [Accessed 27 April 2021].1. Forming👋
Forming is the stage that everyone meets with new team members who we do not know well. At this phase, team members will get to know more about each other such as their hobbies, interests, personalities and other stuff. Furthermore, it is the time that ground rules are established in a team.
2. Storming👐
Storming is the stage where team members start to communicate their feelings but they might view as themselves rather than as a team. They will resist control by group leaders and show hostility.
3. Norming✊
Team members will feel part of the team and realize that they can achieve work if they accept other members’ viewpoints.
4. Performing👏
Team members will work together in an open and trusting atmosphere where flexibility is the key and hierarchy is fundamental.
5. Adjourning👍
Team members work as a team and conduct assessments of the year and the implements a plan for transitioning roles and recognizing members’ contributions.
When I document what I am doing in real time versus after the fact, it captures the thought processes about the things I am doing and what I’ve learned in the moment. This also allows me to reflect on what I have learned because I have to express them in words in a coherent manner, solidifying my understanding and making it easier to revise on these concepts in the future should my memory be not as clear.


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