Optimal Localisation of Window in External Wall of Different Material and Construction Design Considering Linear Loss Coefficient

2016 ◽  
Vol 820 ◽  
pp. 177-182
Author(s):  
Rastislav Menďan ◽  
Boris Vavrovič
Keyword(s):  
Loss Coefficient ◽  
External Wall ◽  
Construction Design ◽  
Window Position ◽  
Linear Loss ◽  
Optimal Window

The goal of the article is contribution to the topics analysing the optimal window position in external wall in order to get minimal value of linear loss coefficient.

An Optimal Window Position in External Walls, of Different Materials and Construction Designs, in Relation to Critical Surface Temperature

2016 ◽  
Vol 820 ◽  
pp. 230-235
Author(s):  
Boris Vavrovič ◽  
Rastislav Menďan
Keyword(s):  
Surface Temperature ◽  
Contact Area ◽  
Critical Surface ◽  
External Wall ◽  
Article Analysis ◽  
Window Position ◽  
Optimal Window

In article analysis of optimal window position in external wall of different properties is provided, considering the highest surface temperature in contact area of window and its reveal.

scholarly journals Optimasi DF Berbasis Posisi Jendela Menggunakan Estetika Asimetris

2020 ◽  
Vol 7 (3) ◽  
pp. 635
Author(s):  
Yose Rizal ◽  
Imam Robandi ◽  
Eko Mulyanto Yuniarno
Keyword(s):  
Weight Factor ◽  
Wall Area ◽  
Artificial Lighting ◽  
Natural Lighting ◽  
Architectural Element ◽  
Window Opening ◽  
Spatial Composition ◽  
Window Position ◽  
Match Theory ◽  
Optimal Window

<p class="Abstrak">Jendela merupakan elemen arsitektur yang berfungsi memasukan pencahayaan alami dari luar kedalam bangunan. Distribusi pencahayaan siang yang merata masuk kedalam ruangan dapat meminimalkan penggunaan pencahayaan buatan. Penelitian ini dilakukan untuk mencari optimasi posisi jendela dengan pendekatan kepada distribusi jarak <em>daylight factor </em>(<em>DF</em>) dan estetika komposisi spasial. Analisis dilakukkan berdasarkan kualitatif distibusi <em>DF</em> pada ruangan terhadap posisi bukaan jendela secara estetika komposisional beradasarkan grafik teori kecocokan represetasional. Tahap fitting dan normalisasi pada nilai daylight factor dan estetika asimetri dari teori kecocokan represetasional merupakan langkah awal untuk mendapatakan optimasi nilai faktor yang nantinya akan diberikan suatu nilai faktor bobot ( ) untuk kedua variabel. Hasil studi di dapat  posisi jendela paling optimal berada pada posisi jarak 23% dari lebar bidang dinding bukaan jendela terhadap sisi jendela bagian dalam, dimana nilai faktor bobot  = 0,5. Optimasi dengan menggunakan nilai  dapat digunakan arsitek untuk menentukkan distribusi <em>DF</em>, estetika asimetri atau bahkan keduanya.</p><p class="Abstrak"> </p><p class="Abstrak"><em><strong>Abstract</strong></em></p><p class="Abstract"><em>The window is an architectural element that functions to incorporate natural lighting from outside into the building. Even daylight distribution into the room can minimize the use of artificial lighting. This research was conducted to find window position optimization by approaching the daylight factor (DF) distance distribution and spatial composition aesthetics. The analysis was carried out based on the qualitative distribution of DF in the room to the position of the window opening aesthetically compositional based on a graph of the theory of repetational compatibility. The fitting and normalization phase of DF values and the asymmetry aesthetics of the repetational match theory are the first step to get an optimization of the factor values which will be given a weight factor value (α) for both variables. The results of the study in the most optimal window position can be located at a distance of 23% from the width of the window opening wall area to the inner side of the window, where the weight factor value α = 0.5. Optimization using the  can be used by architects to determine the distribution of DF, asymmetry aesthetics or even both. <strong></strong></em></p><p class="Abstrak"><em><strong><br /></strong></em></p>

Helical CT of a Tracheobronchial Phantom: Angle and Optimal Window Affecting Size Measurements of ThreeDimensional Images

1999 ◽  
Vol 40 (6) ◽  
pp. 1119
Author(s):  
Chi Hoon Choi ◽  
Byung Kook Kwak ◽  
Young Ok Park ◽  
Jung Ha Park ◽  
Koo Hee Youn ◽  
...  
Keyword(s):  
Helical Ct ◽  
Optimal Window

Investigation of the natural ventilation of wind catchers with different geometries in arid region houses

2020 ◽  
Vol 14 (3) ◽  
pp. 7109-7124
Author(s):  
Nasreddine Sakhri ◽  
Younes Menni ◽  
Houari Ameur ◽  
Ali J. Chamkha ◽  
Noureddine Kaid ◽  
...  
Keyword(s):  
Arid Region ◽  
Natural Ventilation ◽  
Reduction Rate ◽  
Internal Flow ◽  
Climatic Conditions ◽  
Maximum Pressure ◽  
Ventilation Technique ◽  
Window Position ◽  
The One ◽  
Flow Velocities

The wind catcher or wind tower is a natural ventilation technique that has been employed in the Middle East region and still until nowadays. The present paper aims to study the effect of the one-sided position of a wind catcher device against the ventilated space or building geometry and its natural ventilation performance. Four models based on the traditional design of a one-sided wind catcher are studied and compared. The study is achieved under the climatic conditions of the South-west of Algeria (arid region). The obtained results showed that the front and Takhtabush’s models were able to create the maximum pressure difference (ΔP) between the windward and leeward of the tower-house system. Internal airflow velocities increased with the increase of wind speed in all studied models. For example, at Vwind = 2 m/s, the internal flow velocities were 1.7, 1.8, 1.3, and 2.5 m/s for model 1, 2, 3, and 4, respectively. However, at Vwind = 6 m/s, the internal flow velocities were 5.6, 5.5, 2.5, and 7 m/s for model 1, 2, 3, and 4, respectively. The higher internal airflow velocities are given by Takhtabush, traditional, front and middle tower models, respectively, with a reduction rate between the tower outlet and occupied space by 72, 42, 36, and 33% for the middle tower, Takhtabush, traditional tower, and the front model tower, respectively. This reduction is due to the due to internal flow resistance. The third part of the study investigates the effect of window (exist opening) position on the opposite wall. The upper, middle and lower window positions are studied and compared. The air stagnation or recirculation zone inside the ventilated space reduced from 55% with the lower window to 46% for the middle window and reached 35% for the upper window position. The Front and Takhtabush models for the one-sided wind catcher with an upper window position are highly recommended for the wind-driven natural ventilation in residential houses that are located in arid regions.

Analysis of geodetic and legal documentation in the process of expropriation for roads. Krakow case study

2013 ◽  
Vol 62 (1) ◽  
pp. 67-84
Author(s):  
Anna Trembecka
Keyword(s):  
Local Government ◽  
Legal Status ◽  
The State ◽  
Property Value ◽  
Real Property ◽  
Construction Design ◽  
Special Rules ◽  
The City

Abstract Amendment to the Act on special rules of preparation and implementation of investment in public roads resulted in an accelerated mode of acquisition of land for the development of roads. The decision to authorize the execution of road investment issued on its basis has several effects, i.e. determines the location of a road, approves surveying division, approves construction design and also results in acquisition of a real property by virtue of law by the State Treasury or local government unit, among others. The conducted study revealed that over 3 years, in this mode, the city of Krakow has acquired 31 hectares of land intended for the implementation of road investments. Compensation is determined in separate proceedings based on an appraisal study estimating property value, often at a distant time after the loss of land by the owner. One reason for the lengthy compensation proceedings is challenging the proposed amount of compensation, unregulated legal status of the property as well as imprecise legislation. It is important to properly develop geodetic and legal documentation which accompanies the application for issuance of the decision and is also used in compensation proceedings.

The Current State and Development Prospects of Self-Regulation in the Russian Construction Industry

2019 ◽  
pp. 49-55 ◽  
Author(s):  
N. E. Belova ◽  
L. G. Vorona-Slivinskaya ◽  
E. V. Voskresenskaya
Keyword(s):  
Construction Industry ◽  
Government Regulation ◽  
Self Regulation ◽  
Insurance Contracts ◽  
Construction Design ◽  
State Register ◽  
Stage Of Development ◽  
Current State ◽  
The Government ◽  
Development Prospects

The presented study aims to examine the current state and development prospects of self-regulation in the Russian construction industry.Aim. The study aims to conduct a comprehensive analysis of the current state and development prospects of self-regulation as an institution of public administration, identify the problems of self-regulation in the construction industry, and formulate proposals on solving the identified problems.Tasks. The authors complete the following tasks to achieve the set aim: examine the regulatory framework of the activities of self-regulatory organizations in the construction industry — construction, design, and engineering surveying; analyze the current state and positive trends of self-regulation in the field of construction; identify problems in the activities of self-regulatory organizations in the construction industry — construction, design, and engineering surveying — and development prospects of the examined alternative to government regulation.Methods. The methodological basis of the study comprises the fundamental provisions of the modern economic theory, theories of public and municipal administration and legal sciences. The information base includes regulatory and legal acts of the Russian Federation on self-regulation in the construction industry, data from the State Register of Self-Regulatory Organizations, and statistics in the field of construction.Results. At the current stage of development of self-regulation in the construction industry, the most efficient mechanism for this institution involves guaranteed compensation for damage caused due to shortcomings in the works and services during construction, renovation, capital repairs of construction objects, engineering surveying, design. The victims should be compensated not out of insurance payments under civil insurance contracts, but rather out of the compensation funds of self-regulatory organizations.Conclusion. This study makes it possible to assess the institution of self-regulation in the construction industry — construction, design, and engineering surveying — as an efficient institution for proper protection of the interests of consumers of construction works and services and those of the government. 

Petri Net Based Diagnosis for Construction Design

2005 ◽  
Author(s):  
Calin Ciufudean ◽  
Adrian Graur ◽  
Constantin Filote ◽  
Daniel Popescu ◽  
Camelia Petrescu
Keyword(s):  
Petri Net ◽  
Construction Design

Feedback control to delay or advance linear loss of stability in planar Poiseuille flow

1994 ◽  
Vol 447 (1930) ◽  
pp. 299-312 ◽  
Keyword(s):  
Feedback Control ◽  
Poiseuille Flow ◽  
Control Strategies ◽  
Linear Stability Theory ◽  
Flow Instabilities ◽  
Loss Of Stability ◽  
Stress Sensors ◽  
Shear Stress Sensors ◽  
Linear Loss ◽  
Adjacent Wall

By using linear stability theory, we demonstrate theoretically that the critical Reynolds number for the loss of stability of planar Poiseuille flow can be significantly increased or decreased through the use of feedback control strategies which enhance or suppress disturbance dissipating mechanisms in the flow. The controller studied here consists of closely packed, wall mounted, shear stress sensors and thermoelectric actuators. The sensors detect flow instabilities and direct the actuators to alter the fluid’s viscosity by modulating the adjacent wall temperature in such a way as to suppress or enhance flow instabilities. Results are presented for water and air flows.

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