The education of wasting energy by Windge in helical gears has achieved in high
speed by testing a group of gears that made of beech in determined geometrical
specifications. So a testing device is designed and developed to measure the Windge wasti
ng
energy in gears.
This device is consists of electrical driver (3kw) that turning a pivot that leaned on two
rolling carrier across a friction wheel. This indented friction wheel is ride in the end of pivot,
while the other free end is supplied with electromagnetic sensor to measure the turning
speed as a function of time across a control board.
The Windge wasting energy is determined by minus the wasting energy that resulting
from turning the pivot alone, from that resulting from turning the whole system (pivot-gear).
After doing the tests and experiments, the patterns of the losing (theoretical losses,
practical losses) is draw. Then a comparative between the theoretical losses and that has
gotten from testing device.
Due to the high importance of designing operating rooms (especially the air conditioning parameters), many studies, researches and international codes were achieved in order to
reach the optimum parameters for this mission. Hundreds of hospitals in
Syria and all around the world are still suffering from wounds contamination during surgery.
This paper is dedicated to re document collect the latest information to help researcher and designers achieving their mission, especially those information that are not available
in one reference by itself.
The research paper discusses the optimal air conditioning requirement like, temperature, humidity, required filtration, number of air changes per hour, pressures to be maintained
and the recommended face velocity. An extended research studies focus on laminar flow system, and its advantages over the conventional ones. It mentions the sterilization supporting systems which use UVGI In-ducts and in rooms.
The paper concluded that new ideas adopting different philosophies by either supplying fresh air from lower rooms areas or laminar flow wall should be further investigated.
