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All Journal Jurnal Ruas (Review of Urbanism and Architectural Studies)
Jusuf Thojib
Jurusan Arsitektur, Fakultas Teknik, Universitas Brawijaya
Civil Engineering, Building, Construction & Architecture

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Kenyamanan Visual Melalui Pencahayaan Alami Pada Kantor (Studi Kasus Gedung Dekanat Fakultas Teknik Universitas Brawijaya Malang) Thojib, Jusuf; Adhitama, Muhammad Satya
RUAS (Review of Urbanism and Architectural Studies) Vol 11, No 2 (2013)
Publisher : RUAS (Review of Urbanism and Architectural Studies)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (266.392 KB) | DOI: 10.21776/ub.ruas.2013.011.02.2

Abstract

Office as a work area requires an adequate level of comfort, so that users can carry out activities smoothly and has a good working productivity . Convenience is not only dependent on the temperature in the chamber , incoming solar radiation , air quality , and weather quality , but is also determined by the quality of the lighting. Indonesia with rich conditions year-round sunshine should put natural lighting as a priority in the design ; aside as environmental response efforts , utilization also can save energy consumption of building. research was designed to evaluate the visual comfort of the application of natural lighting in the office building, on case study Dekanat Fakultas Engineering University Brawijaya ( UB FT ) Malang. method descriptive and correlational research , seeks to combine the observations ( observations made in the form of illumination with luxmeter measurement , simulation contours of natural lighting , the identification of the elements that affect the natural lighting ) with the perception of the user to get an overview of visual comfort and design characteristics of natural lighting in buildings FT UB so as at a later stage can be given recommendations for the achievement of better visual comfortKeywords: office, visual comfort, natural lighting
Kenyamanan Visual Melalui Pencahayaan Alami Pada Kantor (Studi Kasus Gedung Dekanat Fakultas Teknik Universitas Brawijaya Malang) Thojib, Jusuf; Adhitama, Muhammad Satya
RUAS Vol. 11 No. 2 (2013)
Publisher : Departemen Arsitektur Fakultas Teknik Universitas Brawijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.ruas.2013.011.02.2

Abstract

Office as a work area requires an adequate level of comfort, so that users can carry out activities smoothly and has a good working productivity . Convenience is not only dependent on the temperature in the chamber , incoming solar radiation , air quality , and weather quality , but is also determined by the quality of the lighting. Indonesia with rich conditions year-round sunshine should put natural lighting as a priority in the design ; aside as environmental response efforts , utilization also can save energy consumption of building. research was designed to evaluate the visual comfort of the application of natural lighting in the office building, on case study Dekanat Fakultas Engineering University Brawijaya ( UB FT ) Malang. method descriptive and correlational research , seeks to combine the observations ( observations made in the form of illumination with luxmeter measurement , simulation contours of natural lighting , the identification of the elements that affect the natural lighting ) with the perception of the user to get an overview of visual comfort and design characteristics of natural lighting in buildings FT UB so as at a later stage can be given recommendations for the achievement of better visual comfortKeywords: office, visual comfort, natural lighting
The Impact of Aspect Ratio on External Heat Gain of Multi-storey Office Buildings in Jakarta Iyati, Wasiska; Yulita, Eryani Nurma; Thojib, Jusuf; Sufianto, Heru
RUAS Vol. 16 No. 1 (2018)
Publisher : Departemen Arsitektur Fakultas Teknik Universitas Brawijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.ruas.2018.016.01.2

Abstract

The narrow land in big cities such as Jakarta, increases the amount of high rise building, especially multi-storey office building. Office building consumes much energy to provide air conditioning to meet the thermal comfort inside the building. On the other hand, the building shape, building envelope, and building orientation to the sun's position are the main factors in building design aspects that affect the amount of cooling load. This study aims to investigate the impact of the aspect ratio or the ratio of the longer dimension of an oblong plan to the shorter, on external heat gain of multi-storey office building. Variables examined include the transparent and solid area of building envelope, the total area of the surface of the building envelope in any orientation, and the volume of the building, as well as the influence of those proportion on the external heat gain. This study uses mathematical calculations to predict the cooling load of the building, particularly external heat gain through the walls, roof and glass, as well as comparative analysis of models studied. The study also aims to generate the design criteria of building form and proportion of multi-storey office buildings envelope with lower external heat gain. In Jakarta climatic conditions, the result on rectangular building plan with aspect ratio of 1 to 4 shows that the external heat gain did not differ significantly, and the smallest heat gain is found on the aspect ratio of 1.8. Results also showed that the greater aspect ratio, the greater reduction of external heat gain obtained by changing the orientation of the longest side facing east-west into the north-south, about 2.79% up to 42.14% on the aspect ratio of 1.1 to 4. In addition, it is known that in same building volume, changing the number of floors from 10 to 50 can improve the external heat gain almost twice.
Co-Authors Heru Sufianto Muhammad Satya Adhitama Wasiska Iyati Yulita, Eryani Nurma