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Energy efficiency in operating theaters : a case study

Optimum air distribution system should provide the basic requirements of healthy environment in the Operating Theatre, which depends in turn mainly on the air supply, extract outlet positions, and the operating table orientation. The complexity of the Surgical Operating Theatre requirements is shown in the present computational cases and the associated sophistication of the air treatment, to attain the guideline recommended by the National Health Service Estates of UK, was adequately represented.

Energy-efficient multistory apartment building in Moscow

The new perspective technology in building heat supply and climatisation, are given in this paper. The main energy-saving solutions are following: architectural and layout design taking into account the influence of solar radiation and wind direction; high thermal insulation of building envelope and glazing; mechanical supply-and-exhaust ventilation systems for each flat; Ground heat and exhaust air heat recovery for hot water supply; doublepipe heating system for each flat, horizontal, equipped with flat heat meters and thermostatic valves installed at each room heater.

Integral building and energy design of an office building - Comparison of initial design ideas with monitored results.

Within the program "Solar Optimized Buildings" which is funded by the German Ministry of Economy (BMWi), a building for the DB Netz AG has been realized and monitored. The design concept of the building is dominated by architectural solutions for ventilation, cooling and lighting of the office rooms. Due to the change of responsibilities during the design and building process, the targeted primary energy consumption of 100 kWh/m 2 y has been exceeded so far. The reasons lie primarily in the inadequate operation of the technical systems for heating, ventilation and artificial lighting.

Energy efficient passive ventilation system for Japanese conventional wooden single family house.

Purpose of this study is establishment of energy efficient natural ventilation system for Japanese conventional wooden single-family house, by using humidity-controlled extract units (code name: GHN).To evaluate the effect on energy performance and indoor air quality by adapting the GHN to the passive stack ventilation system, airflow rate, humidity, temperature and CO2 concentration are measured over a period of one year in an experimental house.

Extension of a method of calculation of consumption of air conditioners

To evaluate innovations and efficiency as regards air-conditioning, it is necessary to know for how long and in which conditions the equipment functions, an indication related with the COOLING LOAD and which is their effectiveness - EER - on average (or Seasonal) known as SEER. We extended the concept of SEER to include all sources of electricity consumption, namely the secondary equipment, and we called this extended concept the SYSTEM SEER.

Control strategies for hybrid ventilation simulations

This paper describes the results of a collaboration study between ENTPE-LASH and LEPTAB within the framework of the IEA Annex 35 “Hybrid Ventilation in New and Retrofitted Buildings”. The aim of the work is to carry out a cross-simulation study and identi

A distant learning training module on energy efficient integrated building design in urban environment

The present paper aims to present a distant learning educational module that concerns the energy efficient integrated building design in the urban environment. The educational material of the module includes a handbook, computerized tools, examples of urban buildings, libraries on energy efficient products and materials and climatic documentation of climatic data measured in various European urban areas.

A ceiling condensing unit with Peltier elements for drying and cooling

A condensing device allows to avoid condensation on cooling ceilings in rooms with humid air. It uses thermoelectric modules in contact with the cooling panels. The pumped heat is transferred into the cooling ceiling to keep its temperature above the dew point. Tests have been performed in a full-scale chamber. A set of condensing units was mounted on a standard hydraulic cooling ceiling. The control of temperature is achieved by regulating the mass flow of the water. By this method the loss of efficiency of the cooling panels is fully compensated.

Technical procurement of demand controlled ventilation for dwellings based on performance specifications.

Swedish dwellings often have mechanical ventilation with an almost constant air flow independent of variations in loads. The performance of these ventilation systems is often not satisfying. The occupant habits have changed e.g. increased moisture load. Therefore a technical procurement for energy efficient demand controlled ventilation systems was initiated. First the building regulations were analysed, then the parameters relevant for indoor air quality in dwellings and the energy efficiency potential were determined.

Sustainable architecture and energy efficiency in a retrofitted museum

The Portuguese National Museum for Archaeology is undergoing an expansion and retrofitting. It is currently housed in one of the most important ancient monuments in Portugal: the Monastery of Jernimos. The authorities responsible for the museum, taking advantage of this retrofitting, decided to promote a modern and integrated design of the future archaeological museum. The architectural design aims to combine, aesthetically, the old and the new building, promoting sustainable architecture and energy efficiency (concerning, essentially, indoor climate, lighting and acoustical requirements).

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