Evaluation of ignition mechanisms in selected nonmetallic materials

Test program evaluates thermal and electric ignition mechanisms in selected nonmetallic materials found in spacecraft with concentrated oxygen atmospheres. The phenomena evaluated were spontaneous ignition, ignition of flammable vapor by a spark, and ignition by an arc where the arc produces the combustible vapor and the ignition source

Study of Achievement Gaps in the Seventh Grade Special Education Population on CATS Assessment in All Content Areas

An applied project submitted in partial fulfillment of the requirements for the degree of Education Specialist at Morehead State University by Brandy M. Lain in 2008

Passive and low energy cooling techniques in buildings

The paper deals with applicability of passive and low energy cooling technologies in the Czech Republic.There are presented climate, buildings and systems analysis, to find out passive and low energy cooling technologies potential. Some case studies including building simulations and monitoring are introduced (the office building with night ventilation, direct evaporative cooling, slab cooling, role of thermal mass in an historical building, thermal lops). The role of computer simulation in the low energy building design and optimalization is discussed

Passive and low energy cooling techniques for the Czech Republic

This paper deals with the applicability of passive and low energy cooling technologies in the Czech Republic. The work includes climate analysis as well as buildings and systems analysis in order to estimate the potential of passive and low energy cooling technologies. The latter is based on case studies, which include both building simulation and monitoring. The role of computer simulation in low energy building design and optimization is briefly discussed

Experimental and numerical study of local mean age of air

This paper presents the results from the experimental and numerical study of a room with mixing ventilation, focused on the local mean age of air (LMA). The measurements were performed using the tracer gas concentration decay method. The numerical predictions were obtained from the computational fluid dynamics (CFD) module of the latest version of the ESP-r software

Low energy cooling for buildings in central Europe - case studies

The paper deals with applicability of passive and low energy cooling technologies in the Czech Republic. In the paper there are presented two recent studies, where computer simulation helps to design properly the passive and low energy cooling for buildings is the Czech Republic. There is presented case studies applying, night cooling, thermal mass and slab cooling. The role of computer simulation in the low energy building design and optimalization is discussed

Low energy cooling of buildings in central Europe - case studies

This paper addresses the applicability of passive and low energy cooling technologies in the Czech Republic. The main research methods are climate analysis and buildings and systems analysis, both with the objective to assess the building performance potential of passive and low energy cooling technologies. The analysis is based on case studies, which include building performance simulation as well as in-situ monitoring. The role of computer simulation in low energy building design and optimisation is briefly discussed

Computer simulation for better design and operation of large office building air-conditioning

The paper deals with the use of computer simulations both for the design support of a new buildings and HVAC system development and for the optimisation of the system control strategy in the building. This is presented on a real office building in Prague. For a new large bank head office in Prague, computer simulations were carried out to find solutions for reducing the required cooling capacity, verify the fan-coil capacity design, and optimise the external gassing for atriums. Because the design included exposed concrete ceilings, the idea was to apply building thermal mass and find out a way to operate the building. The cooling capacity was initially estimated at 3 MW and simulations proved possibility of decreasing it to 81% for the whole building. Other simulation helped designers to optimise, roof glazing and shading for atria, with stress on thermal comfort in open corridors. The building and HVAC system monitoring and meassurements to confirm the simulation based design changes are presented in the paper

Low energy cooling for buildings in central Europe - case studies

The paper deals with applicability of passive and low energy cooling technologies in the Czech Republic. In the paper there are presented two recent studies, where computer simulation helps to design properly the passive and low energy cooling for buildings is the Czech Republic. There is presented case studies applying, night cooling, thermal mass and slab cooling. The role of computer simulation in the low energy building design and optimalization is discussed