Team:Mingdao/Human Practices

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JUDGING FORM ⇗

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Motivation

Project Design

Prototype Development

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Overview

“Human Practice is the study of how your work affects the world, and how the work affects your work.”--Peter Carr, Director of Judging.

Our main achievements of integrated human practices were to get valuable feedback for our product improvement, as well as to raise the public awareness on the issue of indoor air quality. To upgrade our prototype, we discussed with experts in different fields in algae culturing, protocol design, and product application, etc. During the discussion, we received a lot of practical and useful advices from these experts, and we further integrated those into our project and made CAir^TM as our outstanding product to meet customers’ expectations.

Motivation & Brainstorming

Measurements of CO2

We measured the air quality in many places with a sensor, Air Mentor. At the beginning, we took the sensor outdoor into those places, which the sensor was measuring constantly. Thus, we could see the data of all places are begin at the ppm around 400 to 700. Except for the gym, there are no people in those places at first, and then people flocked into rapidly. The following is the details and photos of those measurements:

1. Classroom: 40 people in one class, second class of senior second grade in Mingdao.
2. Outdoor: On the fence outside the biolab in MingDao.
3. TEDex Hall: 85 people in the TEDex Hall in MingDao.
4. SUV: 3 people in Mazda CX5 with closed circulation.
5. School Bus: 40 people in one school bus.
6. Table Tennis Room: 42 people in one table tennis room in Ming Hung department B1.
7. Gym: 30 to 40 people in civil sport center gym in Changhua county.

The CO2 concentration was over 3000 ppm after starting the measurement 30 mins in half the places we measured. It will make people feel uncomfortable with symptoms like headache and lethargy, but we usually don’t aware of the effects that CO2 cause to people. It is really a crucial problem for us to solve.

Project Design

Visiting department of environmental engineering in NCHU

Spot:Chung Hsing university environmental engineering department
Date:2019.01.11
After we aware of the indoor air quality of CO2, we searched for the current methods to solve the problems, which made us ask for professors of Chung Hsing university. They let us know several current ways to solve the problems by physics, chemistry and biology methods, respectively. There are absorbents like carbon or Zeolite in physics and chemistry ways to absorb CO2, but these methods take up a lot of energy and time. While the biology way, reducing the CO2 concentration by plants photosynthesis, have low efficiency. They also gave us ideas that we can use algae to reduce the CO2 indoors and the modeling of rising CO2 concentration while there are some people in closed places. Thanks to them, giving us more opinions to our project and made our solution come true !

Lecture by algae specialists,Ms.Huang

Spot:Mingdao High School
Date:2019.02.22
In order to have an in depth knowledge for algae,we invited algae specialist Ms.Huang to Mingdao high school. Ms.Huang gave us many practical suggestions,which made us understand more about what part of our device need to be improved. For example, the regulation of the photoperiod of algae will affect the growth efficiency.Ms.Huang said that the most appropriate day and night alternation is 12 hours of sunlight and 12 hours of darkness.She gave us ideas about how to control the illumination of our device.She also provided us with the requirements of keeping the algae. What's more,Ms.Huang explained the functions of different types of algae as well as the application of them.After listening to her introduction, we decided to choose cyanobacteria as our algae in our device.We really learned a lot from this lecture.We understand a lot more about algae. These can help our experiment and device become better.

Visiting Team Tunghai_TAPG

Spot:Tunghai University
Date:2019.5.17
For more further understanding in our project,we went to Department of Chemical Engineering of Tunghai University. They introduced the current methods of chemical absorption of carbon dioxide to us,such as their disadvantages,advantages and how the absorption works.We learned what function we need to reinforce to cover the shortages of the current methods and what advantages we have currently through their introduction. Apart from this, we also exchanged our ideas with them as well as having a look of their laboratory. This visit to Tunghai University gave us some ideas about how to strengthen our device.These surely have made our project more faultless.

Prototype Development

Conclusion