Submitted by Maria.Kapsalaki on Mon, 05/05/2014 - 16:30
Rejection of solar gains is the aim of passive cooling strategies in any type of building and any climatic region. The extent of cool materials usefulness is dependent on the severity of external conditions and internal heat gains. The aim of the present paper is to underline the contribution of an innovative cool fluorocarbon coating in the reduction of energy demand for cooling in an industrial building with increased heat gains under temperate climatic conditions. The material is tested using accelerated weathering procedures and its optical properties, i.e.
Submitted by Maria.Kapsalaki on Thu, 04/03/2014 - 15:38
The report discusses the need for a proven method of measuring air infiltration rates in large enclosures in order to assess the need for and effectiveness of energy saving measures. The object of the research is to develop such a proven method. Some
The purpose of this study was to find out the local intensity and extent of doorway draughts, the functioning of air curtains, and the variation of the neutral pressure levels in 18 industrial premises. The doorway draught can reach the whole workspace and all the employees. At the doorline, close to the doorway, the thermal conditions can be even harsher than those outside. Air curtains significantly decrease the fluctuation of the temperature at work sites, but the functioning of the same type of air curtain varied substantially between the buildings.
This paper presents a case study of a typically poor energy performing factory building singled outfrom nation-wide study on factory buildings for improving energy performance. Short term energymonitoring has shown that lighting system is the main energy consumer of landlord area energyusage in these naturally ventilated factory buildings. It aims to maximize significant energyperformance upgrading opportunities in the lighting system and explore the use of photovoltaics toachieve low-energy factory buildings.
Major sanitory problems occuring at industrial workplaces are induced by air contaminants. They represent a high financial cost. This paper sums up the main steps and results of the European Research project COST that has developed and optimized a system specifically geared to the local capture of contaminants : the REinforced EXhaust System (REEXS)
Historically, industrial buildings have been simple constructions with no insulation. Ventilation has been natural through openings in the walls and in the roof. Around 1970 we started investigating airflows in large industrial premises by water model studies. This lead to a better understanding of the ventilation airflow patterns in heavy industries. In the following years, the principles were applied in practice. At the present, more than 30 large plants have been designed according to these principles and valuable experience has been gained.
Three experiments aiming at improving the atmosphere in industrial premices are described in this paper. The working conditions of the staff have been improved along with an amelioration of the process and quality of fabrication.The third example proves that a well adapted technical approach allows the improvement of working conditions coupled with an energy control.
Ventilation airflow rates and internal air distribution were measured in four poultry slaughter plants (250 to 775 workers), equipped with negative pressure ventilation systems (exhaust flow rate from 7.1 to 27.4 m3/s - no air intakes - supply air entering through various openings). Results lead the authors to recommend the installation of diffusers for makeup air supply, changes in the organisation of rooms to avoid contamination of one by the other and regular maintenance and cleaning of ventilation components.
Explains how natural ventilation can improve the environment for workers in industrial buildings as well as those in offices. States that in industrial buildings, the primary reason for installing ventilation has always been to avoid excessive internal temperatures, particularly in summer, and to provide fresh air to breath and remove odours. Waste heat from plant, processes, lighting and people is often the main problem today. Claims that natural ventilation is still an option today for cost and environmental reasons.