It may really work as a swamp cooler with very low cost.
Too complicated set-up with too many parts
Carefully pay attention to safety issue and ensure that water and electricity are separated.
Consumer inputs and feedback on their challenges and needs is a crucial first step in developing any product or solution
Design Thinking methodology provides some great steps in the development of any product or solution. Try to Google this methodology.
Prototyping is a very important step in a product development. It helps to improve the solution before getting into production and thus helping to improve the final production outcomes.
Food wastage is a critical problem which the world is facing today. But, many of the existing solutions are logistically challenging and expensive.
Students who want to continue research in this area should streamline their effort to look into a small area of the challenge and focus their project at their school and then expand it to the community/constituency to scale their project objectives.
Education should also be a key focus in their tactics to curb food wastage. This should be explored with both food vendors, consumers and food manufacturing industries.