{"id":15222,"date":"2016-07-08T09:30:54","date_gmt":"2016-07-08T16:30:54","guid":{"rendered":"https:\/\/blog.digilentinc.com\/?p=15222"},"modified":"2024-12-28T16:18:24","modified_gmt":"2024-12-29T00:18:24","slug":"build-a-portable-personal-cooling-system","status":"publish","type":"post","link":"https:\/\/digilent.com\/blog\/build-a-portable-personal-cooling-system\/","title":{"rendered":"Build a Portable Personal Cooling System"},"content":{"rendered":"

Summer can be a magical time, one of of hot days, late nights, and lifetime memories. Those unforgettable moments that we carry with us long after the season itself ends.<\/p>\n

\"DSCN3382\"
Image of summer (according to Google Search). Photo courtesy of moda.com.\u00a0<\/a><\/figcaption><\/figure>\n

At least that is what I have heard from the Gossip Girl novels and Tumblr. In my actual personal experience, I (and my unfortunately lackluster\u00a0ability to regulate my body heat) tend to spend most of the summer months either holed up in my nicely air-conditioned workplace or laying on my floor at home whilst sweating and complaining.<\/p>\n

\"cooling\"
Actual image of what I usually see during the summer.<\/figcaption><\/figure>\n

\"Displaying\"Displaying\"DisplayingI have long dreamed of a way to shed this suffocating heat, and while many find refuge in nearby lakes or pools, all I\u00a0have access to here in Pullman Washington is a questionable stream downtown and a small fountain by the library that is apparently “not for that use”. Well,\u00a0Thomas Edison once said that genius is 99 percent perspiration\u00a0and 1 percent inspiration\u00a0and by god I already had the sweating part down, so all that I needed now was the idea.<\/p>\n

So, after some pondering I came to the conclusion that the answer was going to involve building myself some sort of AC system. Unfortunately I figured that I possessed neither the technical skills nor the money to build a D.I.Y swamp cooler,<\/a> so after some careful consideration and the abandonment of any moral obligation toward anyone but myself, I decided to focus on how to build a personal<\/em> AC system.<\/p>\n

You see,\u00a0I figured it would be easier and take less power to just alleviate one person of the heat instead of a whole room\/house… plus my last pack of Oscar Meyer hot dogs had recently undergone a mysterious disappearance,\u00a0so I decided to remove my housemates\u00a0from the consideration pool.<\/p>\n

Alas, the Personal Cooling System<\/a> was born.<\/p>\n

<\/p>\n

The design involves running ice-cooled water through tubes that are held again heat-sensitive parts of the skin. The current setup includes a “Cooling Pack” that is kept pressed against the back of the wearer’s neck, which is automated to be sent fresh, cool water when a button mounted on the shoulder is pressed. The intent is to allow for an efficient, portable, reusable cooling system.<\/p>\n

I used a chipKIT uC32<\/a> as the brains of the project, which is able to control two servos which are attached to the syringes. The code runs off the push of a button and each time cycles ice-water from the CamelBak to the Cooling Pack.<\/p>\n

<\/p>\n

This project is currently a bit of a work in progress, however it does function as intended even if it is not the most…attractive looking aesthetic. My next steps include hiding the mechanics within the backpack so I can carry it outside without attracting judgmental looks from strangers and\u00a0law enforcement, as well as adding a sweat sensor for autonomous cooling (without having to press the button each time).<\/p>\n

I am planning on using\u00a0the concept of galvanized skin response to create the sensor, then setting a threshold in the code for at what point the wearer is\u00a0“too sweaty” and needs cooling.<\/p>\n

An awesome example of a project that uses similar design\u00a0comes from a 2016 finalist team in the Digilent Design Contest Europe<\/a>.This team created a Wearable Wellness<\/a> system using the Zybo ARM\/Zynq<\/a> FPGA development board, PmodOLED<\/a>, PmodRF2<\/a>and PmodIA <\/a>that can measure changes in skin impedance.<\/p>\n

\"measurement
The Wearable Wellness System.<\/figcaption><\/figure>\n

While their team focused on the stress aspect of wellness, it could\u00a0also be applied as a sweat\u00a0sensor so your Cooling System would be completely autonomous.<\/p>\n

Feel free to check out the full instructions on how to make the Personal Cooling System for your own usage with\u00a0my Instructable<\/a>, and let us know how you intend to beat the heat this summer!<\/p>\n

0<\/span><\/a><\/div><\/div>
<\/div><\/div>
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Stay cool and look even cooler with this project!<\/p>\n","protected":false},"author":36,"featured_media":15231,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false,"_ppma_block_editor_authors":""},"categories":[4327],"tags":[104],"ppma_author":[4485],"class_list":["post-15222","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-projects","tag-project-2"],"yoast_head":"\nBuild a Portable Personal Cooling System - Digilent Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/digilent.com\/blog\/build-a-portable-personal-cooling-system\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Build a Portable Personal Cooling System - 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