Due to high-rise residential buildings and extension of balcony, to resolve discomfort ofindoor-environment and the problem which energy consumption increases, high-riseresidential buildings, coming natural ventilation and decreasing expense of an airconditioningsystem., enable envelope system to be developed.The object of this study is to present the improvement on envelope of high-rise residentialbuildings to reduce heating and cooling load.

The need for higher productivity to match the growing competition has forced employers to look for better Indoor Work Environments. Since most of the buildings are being air conditioned, the Heating Ventilating and Air Conditioning (HVAC) systems account for nearly 40% of total building energy consumption. To reduce this energy consumption Thermal energy storage systems (TES) were developed. The Latent heat thermal energy storage (LHTES) systems using water/ice are commonly used for peak shifts in electrical demand.

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.

In order to reduce the energy consumptions, it is urgent to be focused on existing buildings.The answer is how to determine priorities of interventions on a building to be renovated. The traditional method consists in carrying out a great number of tests and quantifying profits obtained with each solution or combinations of solutions.

This paper describes the production of the Customer Advising Tool (CAT), a piece of software to help assess the potential for reducing the cooling demand of Office buildings, as required by Article 9 of the EPBD. It is a practical tool aimed at use by building owners, inspectors and auditors as part of the Inspection and Audit process. The tool was developed by the authors as part of the IEE AUDITAC project.

Regulatory devices for the energy efficiency of buildings currently in use, including the new EU “Directive on the Energy Performance of Buildings” [1] and especially the methods currently proposed in the various member states to determine and judge the e

A systematic method for assessing and improving indoor environment quality (IEQ) isdeveloped for existing and occupied office buildings. The method begins with an occupantsatisfaction survey that is directed to everyone working in a building. The structure of thequestions follows a pattern that offers valuable information of the technical reasons leading todissatisfaction.

Both on European and national scale, standards are now being drawn to extend to summer airconditioning the evaluation of energy requirement in building-plant systems. To this aimdifferent simplified methods have been taken into account, anyway all similar to theutilization factor method already used for the winter season.The results obtained by the application of these methods in the case of typical buildings aretherefore compared here with those from a dynamic simulation of building-plant system bymeans of comprehensive computer programs like Energy-Plus.

Specialist researchers, property owners, builders and building managers have togetherdeveloped a quality assurance (QA) management scheme that considers indoor environmentand energy use. The primary objective of quality assurance is to work towards continuingimprovements and to encourage those concerned to perform measures that otherwise wouldnot have been considered, and to ensure that energy improvements are not introduced at theexpense of indoor environment conditions.

In order to improve life quality into buildings, the present paper proposes a certification model for indoor total comfort.The first part of the paper concerns energy certification of buildings, with attention to energy efficiency, renewable sources, heating and air-conditioning. In the second part of the paper certificate concept is extended to factors which contribute to ideal requirements into buildings: acoustics and lighting, use of water, safety and technology are studied according to standards.