Ageing of Technical Air and Technical Air with 7.5% C5-Fluoroketone by Free-Burning Arcs

Mathematical approach to model rapidly elongated free-burning arcs in air in electric power circuits

A two-terminal equivalent model of rapidly elongated freeburning arcs in air is presented that is designed to be used in systematic simulations of both existing and new switching concepts of circuit breakers in electric power circuits. The proposed model is based on the combination of a Mayr-type and a Cassie-type differential equation. These are modified in order to take into account the influ...

Final Technical Report on Air Force Grant

Recently Deshpande (1983) has proposed a class of simple tests for testing exponential ity against the increasing failure rate average class of nonr ponential probability distributions. These tests have a nur.ioer of desirable properties. However, they suffer from some omissions. The object of this note is to provide the missing arguments so that the paper can be more useful. 2. A Class of Test...

Case report (Technical and scientific) of transverse excitation atmospheric air laser

Experimental Study of Heat Transfer Rate in a Shell and Tube Heat Exchanger with Air Bubble Injection (TECHNICAL NOTE)

Shell and tube heat exchangers are widely being used in many of industrial and power engineering applications. Different techniques have been employed in order to enhance the performance of the heat exchanger. Air bubble injection is one method to increase the turbulence of the flowing fluids which in turn enhance the heat transfer performance. Injecting air bubbles is one of the promising tech...

Sizing of a Packed Bed Storage for Solar Air Heating Systems (TECHNICAL NOTE)

Packed bed units generally, represent the most suitable storage units for air heating solar systems. In these systems the storage unit receives the heat from the collector during the collection period and discharges the heat to the building at the retrieval process. A method for sizing of packedbed storage in an air heating system is represented. The design is based on the K-S curves, which hav...