Radiant Cooling Effect from a Pre-cooled Room

Objective:

To experience the radiant cooling effect from a pre cooled room.

Outcome:

Students will comprehend the cooling effect from radiant cooling systems.

Requirements:

AC in a room

Prerequisites:

 A conceptual knowledge of radiant and structure cooling.

Procedure:

Step 1: Take students to a non artificially cooled room.

Step 2: Students write down the answer to the following question: ‘On a scale of 1-10 (1 being highly uncomfortable and 10 being highly comfortable), how thermally comfortable do you feel inside the room?’

Step 3: Meanwhile switch on the AC in another room and leave it on for 30 minutes till the time it cools the entire room.

Step 4: Ask the students to enter this room and rate the thermal comfort level as experienced again in this room.

Step 5: Students compare both the responses and identify which score is greater.

Step 6: Discuss the following questions after the experience:

• Was the thermal comfort score higher in the pre-cooled room than naturally ventilated room? Why is it so? What principle of heat is working there?
• Was the thermal comfort score lower in the pre-cooled room than naturally ventilated room? Why is it so? What principle of heat is working there?
• How can this demonstrative experience be used in space cooling in one’s design?

Table:

On a scale of 1-10 (1 being highly uncomfortable and 10 being highly comfortable) how comfortable do you feel?: In the non-cooled room.	On a scale of 1-10 (1 being highly uncomfortable and 10 being highly comfortable) how comfortable do you feel?: In the pre-cooled room.

References:

Read more on radiant and structure cooling, refer Fairconditioning’s Sustainable Cooling Technologies presentation: http://www.fairconditioning.org/resources/#126-module-ppts-1478947081

Fairconditioning resources: Radiant Cooling Animation