Analysis of indoor temperature profiles at the UP Vargas museum

Abstract

Temporal profiles of temperature in the UP Vargas museum were obtained and analyzed through the use of a single LM35 temperature sensor connected to a Z8! Encore microcontroller. Data was gathered during the dry and warm months of February to April 2007. The highest temperature ranges of 31.9±1.5°C came from near the 3rd floor window at around 12:30 to 2:30 pm as it was the only area investigated without any air-conditioning system. The lowest temperature ranges of 22.7±1.9°C came from the memorabilia room at around 7:15 to 8:45 am. Double exponential functions fit well for the profiles in rooms with cooling systems verifying their response with respect to the forcing. This suggests that 2 or more factors affect the room's thermal response instead of only the sun. From this, the mean thermal time constants for the memorabilia room and library were computed to be 175 and 81 minutes, respectively. Motivation for this study is geared towards the development of non-invasive methods of art conservation.