Sangkertadi Sangkertadi (Indonesia)
Sam Ratulangi University
Architecture
Prof.Dr.Sangkertadi was born in Yogyakarta July 9th, 1961. Now is Vice Rector for Planning, Budgetting and Collaboration Affairs at Sam Ratulangi University, Manado, Indonesia. Teaching assignment as Professor in building science in Department of Architecture. Prof.Sangkertadi got B.Sc. in Architecture from ITS, Indonesia, in 1985, then got master degree from INSA de Lyon, France in 1990. PhD degree was also awarded from INSA de Lyon, in 1994, with specialization on Design Method in Building and Urban Technique. He has published many scientific articles in national and international journals, as well as in many proceedings of scientific meeting, and some didactical books in the field of architectural science. Job experienced as head of Building Science Laboratory (1998-2010), head of Master Program Degree in Architecture (2010 – 2014) in Sam Ratulangi University. As invited Professor in a special class teaching in some other Universities, like in Feng Chia University (Taiwan), UTM (Malaysia), ITS (Indonesia), UI (Indonesia). He also as external jury in PhD Dissertation Exam, in UiTM (Malaysia), ITS, Gunadharma University, Diponegoro University (Indonesia). Member of some professional organization, like Indonesia Association of Architect, Indonesia Association of Planner, Association of Green Building Expert Indonesia, Association of Indonesia Researcher on Built Environment.

Presenter of 1 Presentation

 Conference Calendar

AN APPROXIMATE CALCULATION FOR UNDERSTANDING RELATION OF URBAN SPATIAL REGULATION AND UHI WITH CASE OF TROPICAL CITIES.

Session Name
0250 - Academic Sessions - Healthy 01: Clean and healthy air, water and soil - nature and people's health (ID 55)
Session Type
Academic Sessions
Date
02/23/2022
Session Time
09:30 AM - 10:40 AM
Room

Hall D

Presenter
Lecture Time
09:50 AM - 10:00 AM

Abstract

Abstract Body

Urban spatial codes which are especially concerning BCR (Building Coverage Ratio), GAR (Green Area Ratio), BD (Building Density), RAR (Road Area Ratio), are need to be evaluated on their impact on the possibility of increasing Urban Heat Island (UHI).

The aim of this study is to provide architects and urban designers with a basic understanding of the principles of heat transfer in the urban context. The formulas presented in this paper are simple equations, but with adequate tolerance. So that it can be made in a spread sheet format independently by architects and architecture students. A one dimensional heat exchange calculation model is applied. The main focus is to calculate maximum value of horizontal surface temperature due to application of such spatial configuration, surface material, and mass-building layout. By a practical calculation approach it can be done a quickly simulations and obtain results with moderate precision. Most city regulations govern BCR, FAR and some even regulate Building Footprint. Space of green area is expressed by a coefficient of GAR (Green Area Ratio) and/ or GOS (Green Open Space). Through this study some calculation simulations were made by variations of green space with GAR from 30% to 100%. GAR 30% represents as a downtown zone, while GAR 100% is as forest area. Calculations are to find out average maximum value of land surface temperature (LST). The results show values that close to the results of the studies by other researchers who worked with commercial software or by field measurements (the difference is not exceed than 10%). Locations as case of study are cities of Bandung, Semarang and Surabaya, in Indonesia.

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