Simulation the Comparison of Thermal Comfort Levels for Two Traditional Javanese Houses in Yogyakarta fullpaperfix

Simulation the Comparison of Thermal Comfort Levels for Two Traditional
Javanese Houses in Yogyakarta
Tri Yuni Iswati1
1

Faculty of Engineering, University of Sebelas Maret, yuni_iswati@yahoo.com

Traditional house is the ideal house according to the needs of a humid tropics climate like in Indonesia.
But today many traditional houses was demolished for many reasons.
This research attempts to make a simulation to see the thermal comfort of the two traditional houses in
Kotagede with the different morphology house. The houses that observed are Dul Muin’s house and
Samsuri’s house. The consideration for thermal analysis is the roofing, wall, floor material. Opening and
layout of the site is also a factor taken into account in this analysis. Analysis were performed using the
program CFD (Computational Fluid Dynamics). From the analysis results will be obtained that describe
the morphology of the original traditional houses are most comfortable.
The findings is expected to be a reference to build a modern house that adopt a traditional house by
choosing a convenient morphological traditional house, so in order to obtain the expected thermal
comfort.

Key Words : thermal comfort, tradisional Javanese Houses, morphology
Sub Themes : C.1. Architecture And Environmental Design


1

1 Introduction
The aim of this research is comparing thermal comfort from two morphologies of traditional
houses (original and development) plans. This study will be conducted by simulation to look at
the thermal comfort of them. In addition to a different house plans, the direction of orientation of
the house is different, the settings are different to the environment that will affect the thermal
comfort in buildings. Wind direction to Dul Muin’s house (case 1) from the north, wind
direction for the Syamsuri’s house (case 2) from the south.
Part of
buildings
roof
wall

floor
pathway
soil

Material type

Clay tile roof
1/2 brick+
wood
tile
paving

soil

U value
(W/m2K)

admittance
(W/m2K)

2.76
2.4
4.39
0.47
3.418
3.5


solar
absorbtion
(0-1)

3.1
4.38
4.4
6.1
5.8
4.71

0.6
0.7
0.63
0.47
0.642
0

Figure 1. Table U value

Note: V October :3.85m/s , v July: 3.34m/s , t Oct :27 ºC , t Juli :25.5 ºC
source: BMKG

Material on both cases using clay tile roofs, ½ brick wall and wooden, floor tiles are considered
open windows and doors, pathway from paving.
2 Priciples Of Building Design In Humid Tropics Region
According Satwiko (2008) for thermal comfort humid tropics is at a temperature of 24 ˚ C