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NATURAL CONVECTION HEAT LOSS IN BUILDINGS

Mansor, Muhammad Fadhil (2013) NATURAL CONVECTION HEAT LOSS IN BUILDINGS. Universiti Teknologi Petronas. (Unpublished)

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Abstract

Natural convection heat loss is an issue that needs to be considered when designing the building. Energy lost to the surrounding will increase the overall energy consumed by the building for heating, ventilation and air conditioning (HVAC) system. Understanding the relationship between window opening ratio and heat transfer rate will enable better prediction of heat loss through the window, thus improving the building design. This final dissertation will discuss about the project objective of finding correlation between windows-to-wall sizes ratio and heat transfer coefficient via natural convection, scope, relevancy and also feasibility of the study. Literature review is done on previous studies and journals on natural convection in building. Related information from American Society of Heating, Refrigerating and Air-Conditioning (ASHRAE) standard has been included as well. Research methodology is described briefly which mostly involves analyzing the data obtained from the experiments conducted. Experimental setup is based on the real life building compartment with different opening ratio of the window. Engineering theory used to integrate the building model to the heat transfer calculation is described in a detailed manner. Data analysis is done and shown to indicate how the opening ratio effect the correlation linking the main parameters involved in natural convection which are Nusselt and Rayleigh numbers. Discussion on the results obtained as well as errors that might hinders the accuracy of them is also included. Smaller opening ratio leads to a more turbulent flow natural convectional heat transfer is the conclusion that can be derived from this project results.

Item Type: Final Year Project
Academic Subject : Academic Department - Mechanical Engineering - Petroleum
Subject: T Technology > TJ Mechanical engineering and machinery
Divisions: Engineering > Mechanical
Depositing User: Users 2053 not found.
Date Deposited: 13 Nov 2013 15:44
Last Modified: 25 Jan 2017 09:39
URI: http://utpedia.utp.edu.my/id/eprint/10539

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