Comparison Of Integrated Environmental Solutions <Virtual Environment> And Autodesk Ecotect Simulation Software Accuracy With Field Measurement For Temperature

Leng, Pau Chung and Ossen, Dilshan Remaz (2013) Comparison Of Integrated Environmental Solutions <Virtual Environment> And Autodesk Ecotect Simulation Software Accuracy With Field Measurement For Temperature. In: Sustainability In Built Environment I. ISI Publications. ISBN 978-983-2466-10-9

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Abstract

Ventilation is one of the important criteria to achieve thermal comfort in building. In order to reduce energy consumption, effectiveness of natural ventilation performance in building should become major consideration in design. In Malaysia, 70% of the electricity consumed is for cooling load. An effective passive design strategy for building is necessary especially in hot and humid climate in Malaysia. Cross ventilation strategy is considered as the ideal in order to enhance the thermal performance. However, due to limitation of layout efficiency, cost effectiveness, security, and fire requirement, most of the building designed has single-sided ventilation solution. This paper discussed the study of thermal performance of the single-sided ventilation room by comparing two simulation software results and field experiment result. The effectiveness of the thermal performance of single-sided ventilated room is been validated in order to mark out the maximum range of temperature and relative humidity in a single-sided ventilation room. A case study of a typical office room was carried out in UTM campus in Johor Bahru with field measurement conducted for 15 days in naturally ventilated office space. The study shows that the single-sided ventilation room was thermally comfortable for about 35.9% out of 335 hours in 15 days based on ASHRAE experiment in Singapore 1952. The comfort condition occurs between 21:00 and 07:00, which falls in the range of 24.5ºC to 27ºC. The average air movement at night was 0.4m/s and the average relative humidity was 80%. The critical time for the indoor temperature was around noon hours. However, the low percentage of thermal performance out of 15 days has directly indicated the disadvantages of single-sided ventilation especially between 10:00 to 16:00 hours. In order to validate the software application for future research in order to save time, operation cost and consideration of flexibility of experimentation work, Autodesk ECOTECT® and Integrated Environment Solution <Virtual Environment> (IES<VE>) has been selected. The mentioned software are discussed and the simulated results were compared. The findings show that 86 Sustainability in Built Environment I IES<VE> has higher accuracy compared to Autodesk Ecotect in term of percentage differences. The comparison of software for the temperature simulation is discussed in this paper.

Item Type: Book Section
Subjects: N Fine Arts > NA Architecture
Divisions: Faculty of Built Environment > Construction
Depositing User: FAB IR Admin
Date Deposited: 05 Oct 2015 09:54
Last Modified: 06 Oct 2015 09:10
URI: http://epublication.fab.utm.my/id/eprint/553

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