{"id":2339,"date":"2023-06-12T09:37:18","date_gmt":"2023-06-12T09:37:18","guid":{"rendered":"https:\/\/fairconditioning.org\/fc-activity\/?post_type=activity&p=2339"},"modified":"2023-07-02T08:20:49","modified_gmt":"2023-07-02T08:20:49","slug":"air-flow-blow-dryer","status":"publish","type":"activity","link":"https:\/\/fairconditioning.org\/fc-activity\/activity\/air-flow-blow-dryer\/","title":{"rendered":"Air Flow & Blow dryer"},"content":{"rendered":"\n
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Objective:<\/h5>\n\n\n\n

To understand and measure the difference in the rate of flow of air when it is made to pass through\u00a0 a specific pathway\/ducting versus when it is spread over a larger generalized space<\/p>\n\n\n\n

Outcome:<\/h5>\n\n\n\n

Students will comprehend the fact that ducting improves the flow of air which is useful for designing both passive and energy-efficient active cooling in building structures<\/p>\n\n\n\n

Requirements:<\/h5>\n\n\n\n

Blow dryer, digital anemometer, plier (to hold the blow dryer), 1 m long PVC pipe having diameter equal to or just greater than the mouth of blow dryer, a table.<\/p>\n\n\n\n

Prerequisites:<\/h5>\n\n\n\n

A conceptual knowledge of flow of air.<\/p>\n\n\n\n

Procedure:<\/h5>\n\n\n\n

Step 1: <\/em><\/strong>Clamp the blow dryer with the plier.<\/p>\n\n\n\n

Step 2: <\/em><\/strong>Place the plier on the table such that the air stream coming out from the blow dryer is parallel to the table.<\/p>\n\n\n\n

Step 3: <\/em><\/strong>Place the anemometer 1 metre apart from the mouth of the blow dryer such that it is collinear with the axis of air stream coming from the mouth of blow dryer.<\/p>\n\n\n\n

Step 4: <\/em><\/strong>Note the air flow rate from the anemometer in km\/hr.<\/p>\n\n\n\n

Step 5:<\/em><\/strong> Place a PVC pipe at the mouth of the blow dryer.<\/p>\n\n\n\n

Step 6:<\/em><\/strong> Place the anemometer at the other end of the pipe.<\/p>\n\n\n\n

Step 7:<\/em><\/strong> Note the air flow rate from an anemometer in km\/hr.<\/p>\n\n\n\n

Step 8:<\/em><\/strong> Compare the air flow rate in both cases.<\/p>\n\n\n\n

Air Flow Rate (Without Pipe)(km\/hr)<\/em><\/strong><\/td>Air Flow Rate (With Pipe)(km\/hr)<\/em><\/strong><\/td><\/tr>
<\/td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Step 9:<\/em><\/strong> Try the same demonstration with a bent pipe. Does the rate of flow of air change? How much? What can we learn from this? <\/p>\n\n\n\n

Step 10:<\/em><\/strong> Discuss examples of where this principle has been applied in general and specifically in buildings<\/p>\n\n\n\n

References:<\/h5>\n\n\n\n

Case 1:<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Case 2:<\/p>\n\n\n\n

\"\"<\/figure>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Objective: To understand and measure the difference in the rate of flow of air when it is made to pass through\u00a0 a specific pathway\/ducting versus when it is spread over a larger generalized space Outcome: Students will comprehend the fact that ducting improves the flow of air which is useful for designing both passive and […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"inline_featured_image":false},"activity_subject":[125],"academic_year":[68],"complexity":[59],"content_tags":[383,388,427],"activity_type":[361],"activity_duration":[173],"acf":[],"_links":{"self":[{"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/activity\/2339"}],"collection":[{"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/activity"}],"about":[{"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/types\/activity"}],"author":[{"embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/comments?post=2339"}],"version-history":[{"count":1,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/activity\/2339\/revisions"}],"predecessor-version":[{"id":2347,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/activity\/2339\/revisions\/2347"}],"wp:attachment":[{"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/media?parent=2339"}],"wp:term":[{"taxonomy":"activity_subject","embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/activity_subject?post=2339"},{"taxonomy":"academic_year","embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/academic_year?post=2339"},{"taxonomy":"complexity","embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/complexity?post=2339"},{"taxonomy":"content_tags","embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/content_tags?post=2339"},{"taxonomy":"activity_type","embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/activity_type?post=2339"},{"taxonomy":"activity_duration","embeddable":true,"href":"https:\/\/fairconditioning.org\/fc-activity\/wp-json\/wp\/v2\/activity_duration?post=2339"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}