DEVELOPMENT OF THERMAL INSULATION PROPERTIES MEASUREMENT METHOD BASED ON HEAT TRANSFER SIMULATION IN AIR PIPE FLOW
One of the most common solution used to solve issues caused by heat loss is to use thermal insulation. There is a favorable type of thermal insulation found in the market called thermal insulating coating, also known as TIC. Complete agreement had not been already found about the mechanism of how...
Saved in:
| Main Author: | |
|---|---|
| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/46743 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | One of the most common solution used to solve issues caused by heat loss is
to use thermal insulation. There is a favorable type of thermal insulation found in
the market called thermal insulating coating, also known as TIC. Complete
agreement had not been already found about the mechanism of how the insulating
effect is formed in TIC, with some state that the excellent insulating effect is due to
their low thermal conductivity value, while others state that the effect is due to TIC
capability to reduce convection heat transfer on the insulated surface. There is a
probability that the heat transfer mechanism in TIC is affected by the material
structure on microscopic level, thus the mechanism cannot be assumed to be the
same as in traditional thermal insulation. This final project research covers the
determination of thermal insulation properties that can be acquired from the
apparatus, along with the development of its measurement methods. The apparatus
is designed in a form of a pipe system in which air flows within and the surface can
be coated with thermal insulation.
The apparatus is designed in ways such that a new evaluation method can be
developed. A simulation program is developed to simulate which properties of
thermal insulation can be acquired from the apparatus. Thermal resistance and heat
loss are the two properties of thermal insulation that can be used as insulating
capability indicator. These parameters is estimated by using ANFIS estimation and
the Least-squares Estimation (LSE) method. Based on the evaluation, the ANFIS
estimation method brought out the best estimation performance for both
parameters. The ANFIS estimation method for thermal resistance (ANFIS-R) yields
an error value of 0,163 m2K·W-1, while ANFIS estimation method for heat loss
(ANFIS-Q) yields an error value of 12,64 W·m-1. The developed ANFIS methods
are found to be quiet robust against the simulated measurement errors. |
|---|