Optimization Of Double Skin Facades For Buildings: An Office Building Example In Ankara-Turkey

There are about 16 millions building in Turkey. The total energy consumption of these buildings is approximately 3.48x105 GJ. The energy consumption of the office buildings having HVAC systems can be stated as 150 kWh/m2.year.Turkey is in the warm climate band and the day time outside air temperature in summer (May ~ September) is about 30C. Parallel to the increasing comfort demands, energy consumption also increases. These factors make the necessity for increasing energy efficiency of buildings apparent.

The Influence Of “Ventilate Sill” Design As A Device To Improve Natural Ventilation Inside School Buildings In Hot And Humid Climate

This article is part of a research in progress about comparative study methods for the Brazilian reality using among many other authors, Givoni (1969), Voght and Miller-Chagas (1970), Fanger-ISO(1970), ASHRAE (55-1992), Mahoney (1971), Humphreys (1978) and Olgyay (1962) methods. This research presents the principal concept to be evaluated by the Universal Fuzzy Controlled aiming to establish a reference to determine a possible interference of the acclimatization factor to determine thermal comfort.

A New Educational Concept for Whole Building Heat, Air & Moisture Simulation

The objective of the paper is to present a new educational concept for improving the accessibility towhole building Heat, Air & Moisture (HAM) simulation models developed in the simulation environmentHAMLab. We provided a library of buildings, including the default performances of the buildingsthemselves, on a website. Students can select the most appropriate building, adapt the inputparameters, simulate and evaluate the results. In case a higher resolution is required, two stepsexplain how to implement respectively advanced controllers and HAM details.


The severe impact on health associated with biocontaminants, such as dust mites, has become increasingly apparent in recent years. Consequently, a considerable effort has taken place to develop biocontaminant growth models and to assess the efficacy of possible psychrometric control measures, involving the modification of room conditions. However this approach is not always successful due to the low correlation between room conditions and those within the microenvironments inhabited by biocontaminants.


Application of lighting control technologies has increased the public interest. Although these technologies have been promoted during the last years their successful use in buildings has been accomplished in a small percentage of new projects. One reason is the difficulty in quantifying the energy savings and thus the subsequent payback period.


The paper presents the results of the measurements and integrated simulation of the energy demand and air exchange in one of the flats located in a 5-storey building located in urban area. The experiment was carried out during 3 weeks of March. The total energy consumption necessary for flat heating was measured continuously (at a 2 sec time step). After measurements were finished the energy demand and ventilating air flows were calculated assuming the same weather data variation as measured during the experiment, using the ESP-r software.

Modélisation des stores venitiens. Influence de leur gestion d'ouverture sur les bilans thermiques d'été

A model of Venetian blind associated simple or a double glazing is proposed in this article. Simplified modeling is based on a 2D approach (not taken into account of the effects edges) and separately treats the transmission of direct and the diffuse one. The evolutions of the form factors and the solar flows transmitted according to the degree of opening of the blind, of the slope of the plates, the position of the sun in the sky are taken into account and the models used are described.

Etude des performances d'un système de refraichissement evaporatif par désorption

In this paper the performance of a desiccant cooling system was evaluated. The system comprises a desiccant wheel in tandem with a thermal wheel with evaporative coolers in both air supply and return air streams before the thermal wheel. It allows cooling and dehumidifying air without using conventional refrigerants. A computer simulation was developed to study the effects of various designs and outdoor air conditions on the performance of the system. The simulations were run with SPARK, an object oriented program that allows creation of very flexible tools.

Controller design for climate control in buildings using CLIM 2000

The CLIM 2000 software environment [1] was developed by the Electricity Applications in Buildings Branch of the French utility company, Electricité de France. This software which has been in operation since June 1989, allows the behavior of a whole buildi

Computer-aided boiler design

In 1993, the R & D Division launched the IntelChaud project with a view to improving the comfort provided by individual gas-fired boilers used for domestic hot water production. This study was conducted in partnership with two French boiler manufacturers and was therefore applied to two particular cases. The work performed for this study has led to substantial improvements in boiler control through the use of sophisticated numerical control systems.