The development of the project on Energy Performance Contracting is very significant even without any state support till recent time. Last year we can see finaly some support. Ministry of Environment has supported EPC in general by the project in programme of environmental education and promotion. Also Ministry of Industry and Trade endeavours to support first phase of EPC project preparation to select buildings suitable to apply EPC from programme EFEKT from 2012. The methodology for the using of the EPC in the state buildings will be prepared by the end of 2011. By the end of this year several moreover several new tenders will be announced in public sector.

This paper deals with changes in the newly revised technical standard for building thermal performance in terms of ventilation and distribution of air in the building. This paper describes the formulation of requirements, when it is necesary to guarantee a quality of indoor environment and also minimize the energy consumption of ventilation. Attention is also paid to disseminating of air into leaks in the facade or roof.

A common practice in the current housing construction is the use of percussive system of ventilation in which air supply is solved through the window gap. A common feature of such a method of ventilation is totally inadequate supply of ventilation air, which can lead to various undesired air suction holes (electrical outlets, riser, etc.).
Currently, when there are high demands on the airtightness of windows and doors, air intake system can not be solved by windows gaps for ventilation of buildings with a new or reconstructed windows. Ventilation infiltration may be allowed only in buildings where there is no possible replacement of original windows with new tight windows (historical buildings etc.).

The author in his paper examines in detail the individual steps that make up the course selection process for energy services provider. Special focus is on the evaluation of the bids submitted in the tender.

This paper describes the brief overview of field devices used in heating, ventilation, airconditioning and cooling. The description of sensors, switches, valves, actuators and frequency inverters was presented in detail.

The contribution is focused on the systems of cool production for air-condition units. The first part of the contribution deals with the now-a-days cooling requirements of buildings. Then, the frequently used cool production systems are described and compared each other. The absorption cooling systems and the vapor cooling systems are compared. The most frequently used applications of the cooling absorption cycles are presented, namely tri-generation systems and district cooling systems.

In relation with the present discussions on the use of solar energy it is useful to mention one important stage of Czech agriculture - the production of really high-quality roughage. Besides the development of methods of silage and haylage, thirty years ago the researchers looked at final drying of forage in large-scale haylofts using air solar collectors.

The author is concerned with the design of flexible placing and the explanation of resonance effects in a flexible element of one-mass and two-mass placing machines on the basis of theoretical analyses and practical experiences. He highlights problems regarding rotational machines placed flexibly due to high excitation frequencies to be used for significantly lower excitation frequencies. He points out of the necessity of cooperation between the designer of the machine flexible placing and the building safety engineer in cases of light construction structures of floors and ceilings.

For both mobile and stationary air conditioning equipment it is the most important condition of safe hygiene compliance its regular maintenance and cleaning. During the specified period should be in accordance with operating instructions of the manufacturer, replaced the dust filter.

The article deals with the description of the progress of established technologies from initial idea to its installation and verification functions in practical operation. The article shows the importance of modeling physical phenomena associated with the issue of air flow, the subsequent acquisition of a utility model for developing technology and economic benefits of this technology in operation.

Nowadays there is a growing interest in quality and high energy saving housing. The following article presents the almost unusual renovation of a terraced building in Denmark. It was expected that after the renovation the building with become CO₂ neutral. The last house of a terrace in the twon of Albertslund, Denmakr was chosen for the renovation. It had been built in the 1960's and it is a two story terraced house with a 50m² footprint.

The article provides information on the activities of the International Centre AIVC (Air Infiltration and Ventilation Centre), which in a new cycle from 2011 to 2013 will focus on the strategy 20-20-20, which oblige EU countries to save energy in buildings. The article explains the structure of the AIVC and its tasks as an international information center, to help not only the AIVC member countries in addressing ventilation in newly built buildings that will have to meet very strict requirements for tightness.

In January I published an article about the upcoming revision of CSN 73 0540-2 Thermal protection of buildings, Part 2: Requirements. I expressed to changes in each individual chapter. Since then there is new development in the standard revision. Some comments by members of the Standardisation Committee No. 43 and by professionals from the April public consultation of the standard were implemented. Some chapters of the standard are nearly unchanged since January, but some have changed in fairly major way.

Motto: To be or not to be. That is the question - William Shakespeare. Every HVAC designer suffers of the dilemma while deciding an optimal design of ventilation or air conditioning system in administrative buildings, similarly as Hamlet suffered. The decision making process is affected with other circumstances, which rather complicate the option thereof. Readers are introduced with a system of cooling beams, which is not very extended (known) in the CR.

Our serial continues with this low-energy house built with sand-lime bricks. This time, the family house is located not far from Liberec, in the foothills of the Jizera mountains. The surroundings, predominantly rural houses near a protected natural area, influenced the shape of the house. Its location responds primarily to the surrounding buildings and the slightly sloping land.

National Renewable Energy Action Plans (NREAP) of each EU countries in graphical and tabelar forms. Part three - final energy consumption for heating and cooling and share of RES on the consumption for heting and cooling.

Article originated from the result of a graduation thesis that had been engaged in the design of air conditioning in a sports hall. An emphasis was insisted on ensuring the optimal microclimatic conditions in the ice stadium in the framework of the solution. In particular, it related of places affected by the ice surface with respect to the generation of mist and condensation of humidity at construction structures as well as ensuring a necessary comfort for spectators in the area of stands and terraces.

Lots of energy saving projects of public swimming pools were realised during last few years in Germany and Austria. Some of them were realised by the EPC method (Energy Performance Contracting). This paper shows two of them.