scholarly journals APLIKASI LOUVER UNTUK PENGONTROLAN PENCAHAYAAN ALAMI PADA RUMAH TINGGAL

2021 ◽  
Vol 5 (2) ◽  
pp. 251-266
Author(s):  
Yunita Ardianti Sabtalistia
Keyword(s):  
Solar Control

Pemanfaatan pencahayaan alami pada rumah tinggal dapat tercapai secara optimal jika mampu memanfaatkan bukaan-bukaan, seperti: jendela, skylight, dan ventilasi. Pencahayaan matahari yang masuk dari samping atau dari atas bangunan dapat diatur kuantitasnya dengan menggunakan louver. Pada masa pandemi Corona seperti saat ini menyebabkan waktu kita sebagian besar dihabiskan di rumah. Berdasarkan permasalahan tersebut maka penelitian ini bertujuan menemukan model louver yang paling mampu mengoptimalkan pencahayaan alami pada rumah tinggal khususnya pada ruang kerja, ruang makan, dan dapur. Sampel penelitian yang digunakan adalah rumah tipe 27/60 yang menghadap ke arah barat daya. Metode yang digunakan adalah metode eksperimen dengan menggunakan simulasi Ecotect. Ada 3 model rumah yang disimulasikan, yaitu: model rumah eksisting dan 2 model rumah yang dimodifikasi baik dari bentuk rumah dan model bukaannya. Ketiga model rumah tersebut disimulasikan menjadi 3 kondisi, yaitu: tanpa louver, horizontal louver, dan vertical louver. Hasil penelitian menunjukkan bahwa penggunaan horizontal louver lebih mampu mengurangi cahaya matahari yang masuk dibandingkan vertikal louver. Model yang terbaik adalah model 2 dengan solar control berupa horizontal louver. Hal tersebut disebabkan karena model 2-horizontal louver mempunyai selisih nilai lux dengan SNI 6197:2020 yang paling rendah dan mempunyai tingkat uniformity ratio cukup tinggi.

scholarly journals Trees as a solar control measure for southern-oriented street frontages. Analysis of a selected street model for a humid continental climate

2021 ◽  
Author(s):  
Katarzyna Zielonko-Jung ◽  
Justyna Janiak
Keyword(s):  
Numerical Simulation ◽  
Solar Radiation ◽  
Control Measure ◽  
Total Solar Radiation ◽  
Single Row ◽  
Ground Floor ◽  
Radical Reduction ◽  
Solar Control ◽  
Sycamore Maple ◽  
Continental Climate

AbstractThe present study is aimed at the analysis of possibilities for shading southern frontage of street oriented along the E-W axis by the single row of trees, parallel to the southern elevations. The effectiveness of solar control shading was tested depending on the geometric relationships between trees and buildings. Numerical simulation analyses were conducted in Rhinoceros® program for the street located in humid continental climate in city Płock, Poland (52°32′50 “N 19°42’00 “E), for the day of the highest degree of total solar radiation in the year i.e. June 7th, during hours: 8.00a.m - 5.00 p.m. The analysis has proved that a row of 20–25 year old Sycamore Maple ‘Rotterdam’ in the street 30 m wide and 18 m high (H/W = 0.6), can provide solar protection for the southern frontage, especially when trees are located no more than 4 m away. Location of greenery within the range of 4 to 5 m from the buildings leads to a radical reduction in the possibility of shading the wall surfaces (at 5 m to 0%). Over 90% of the shading area of the ground floor façade walls was found when trees were within the distance 2 and 3 m away from the building.

scholarly journals Possible solar control of North Atlantic oceanic climate (reply)

Nature ◽  
1977 ◽  
Vol 266 (5601) ◽  
pp. 476-476 ◽  
Author(s):  
J. M. COLEBROOK
Keyword(s):  
North Atlantic ◽  
Oceanic Climate ◽  
Solar Control

scholarly journals Issues relating to the efficient application of passive solar protection in multi-family residential buildings

2020 ◽  
pp. 1-16
Author(s):  
Justyna Kobylarczyk ◽  
Janusz Marchwiński ◽  
Katarzyna Zielonko-Jung
Keyword(s):  
Energy Savings ◽  
Residential Buildings ◽  
Thermal Mass ◽  
Functional Specificity ◽  
Characteristic Functional ◽  
Spatial Features ◽  
Venetian Blinds ◽  
Building Facades ◽  
Solar Control ◽  
External Conditions

The following article is intended to discuss the issues concerning the introduction of passive measures aimed at improving solar protection in multi-family buildings. A system of classifying these methods into two groups of solutions (architectural and material-building) was applied. The first group includes issues concerning facade design, the spatial features of which (such as loggias, balconies and other overhangs) can be treated as one of the solar protection methods. The authors’ own studies are presented and expressed in a sequence of formulas. The formulas enable assessment of the effectiveness of the above elements, depending on external conditions. As far as the second group is concerned, material-construction solutions for building facades and roofs are discussed. The solutions mentioned include solar-control glazing, spatial shading elements (such as venetian blinds, roller blinds), roof and façade vegetation, and the thermal mass of the building. The essence of the functioning of the analysed solutions in relation to the characteristic functional specificity of multi-family buildings is discussed. Problematic areas of application of the above methods are indicated. As shown in the study, problematic areas may include a group of utilitarian-operating, economic and aesthetic issues, in the case of which the use of passive solutions encounters limitations. In conclusion, the possibilities for alleviating these limitations are highlighted. The authors’ own solutions presented in the following paper can contribute to energy savings and may thus prove beneficial for environmental reasons, thereby serving the aims of sustainable development.

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