THERMODYNAMIC ANALYSIS OF PLANAR MULTILAYERED COOLING SURFACE WITH NANOCONE STRUCTURE FOR PASSIVE RADIATIVE COOLING

Passive radiative cooling is achievable by the use of a cooling surface that is selectively designed to have certain absorptivity and emissivity spectrum. Other studies have shown that adding nanocone structures to a dielectric film, such as planar multilayered cooling surface, may increase its a...

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Main Author: Dila Nur Pradana, Daffa
Format: Final Project
Language:Indonesia
Online Access:https://digilib.itb.ac.id/gdl/view/79132
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Institution: Institut Teknologi Bandung
Language: Indonesia
id id-itb.:79132
spelling id-itb.:791322023-12-08T15:56:09ZTHERMODYNAMIC ANALYSIS OF PLANAR MULTILAYERED COOLING SURFACE WITH NANOCONE STRUCTURE FOR PASSIVE RADIATIVE COOLING Dila Nur Pradana, Daffa Indonesia Final Project Passive radiative cooling, cooling surface, nanostructure, thermodynamic analysis, finite difference element analysis INSTITUT TEKNOLOGI BANDUNG https://digilib.itb.ac.id/gdl/view/79132 Passive radiative cooling is achievable by the use of a cooling surface that is selectively designed to have certain absorptivity and emissivity spectrum. Other studies have shown that adding nanocone structures to a dielectric film, such as planar multilayered cooling surface, may increase its absorptivity. This increase in absorptivity is expected to increase the cooling power that could be emitted by the cooling surface. This research is conducted to determine the effect of adding nanocone structure to some existing planar multilayered cooling surfaces. The effect is quantified by its theoretical cooling power and steady-state temperature. These parameters are obtained through thermodynamic analysis which requires absorptivity and emissivity spectrum of the cooling surfaces. This spectrum is obtained through numerical simulation with finite difference element analysis using COMSOL Multiphysics software. This research shows that the addition of nanocone structure with diameter of 300 nm can increase the average absorptivity and emissivity of the cooling surface. This increase is also observed with increasing height of the nanocone structure from 50 nm to 150 nm. However, increasing the absorptivity and emissivity does not always result in a decrease in steady-state temperature and an increase in cooling power. This result is observed because apart from emissive power, the irradiation absorbed by the cooling surface also increases with increasing absorptivity and emissivity. text
institution Institut Teknologi Bandung
building Institut Teknologi Bandung Library
continent Asia
country Indonesia
Indonesia
content_provider Institut Teknologi Bandung
collection Digital ITB
language Indonesia
description Passive radiative cooling is achievable by the use of a cooling surface that is selectively designed to have certain absorptivity and emissivity spectrum. Other studies have shown that adding nanocone structures to a dielectric film, such as planar multilayered cooling surface, may increase its absorptivity. This increase in absorptivity is expected to increase the cooling power that could be emitted by the cooling surface. This research is conducted to determine the effect of adding nanocone structure to some existing planar multilayered cooling surfaces. The effect is quantified by its theoretical cooling power and steady-state temperature. These parameters are obtained through thermodynamic analysis which requires absorptivity and emissivity spectrum of the cooling surfaces. This spectrum is obtained through numerical simulation with finite difference element analysis using COMSOL Multiphysics software. This research shows that the addition of nanocone structure with diameter of 300 nm can increase the average absorptivity and emissivity of the cooling surface. This increase is also observed with increasing height of the nanocone structure from 50 nm to 150 nm. However, increasing the absorptivity and emissivity does not always result in a decrease in steady-state temperature and an increase in cooling power. This result is observed because apart from emissive power, the irradiation absorbed by the cooling surface also increases with increasing absorptivity and emissivity.
format Final Project
author Dila Nur Pradana, Daffa
spellingShingle Dila Nur Pradana, Daffa
THERMODYNAMIC ANALYSIS OF PLANAR MULTILAYERED COOLING SURFACE WITH NANOCONE STRUCTURE FOR PASSIVE RADIATIVE COOLING
author_facet Dila Nur Pradana, Daffa
author_sort Dila Nur Pradana, Daffa
title THERMODYNAMIC ANALYSIS OF PLANAR MULTILAYERED COOLING SURFACE WITH NANOCONE STRUCTURE FOR PASSIVE RADIATIVE COOLING
title_short THERMODYNAMIC ANALYSIS OF PLANAR MULTILAYERED COOLING SURFACE WITH NANOCONE STRUCTURE FOR PASSIVE RADIATIVE COOLING
title_full THERMODYNAMIC ANALYSIS OF PLANAR MULTILAYERED COOLING SURFACE WITH NANOCONE STRUCTURE FOR PASSIVE RADIATIVE COOLING
title_fullStr THERMODYNAMIC ANALYSIS OF PLANAR MULTILAYERED COOLING SURFACE WITH NANOCONE STRUCTURE FOR PASSIVE RADIATIVE COOLING
title_full_unstemmed THERMODYNAMIC ANALYSIS OF PLANAR MULTILAYERED COOLING SURFACE WITH NANOCONE STRUCTURE FOR PASSIVE RADIATIVE COOLING
title_sort thermodynamic analysis of planar multilayered cooling surface with nanocone structure for passive radiative cooling
url https://digilib.itb.ac.id/gdl/view/79132
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