This study presents a blower for air management system of fuel cell modules. A blower is composed of BLDC motor and impeller. Magnetic equivalent circuit model and finite element analysis are used to design the motor, and an improved structure is considered to reduce a mechanical loss induced from bearing units. Finally, air blower system combined with the motor and an impeller is manufactured ...

altered in many ways with the view to cut down weight and cost and to ensure simplicity. It consists of two parts : (a) the ftiotor and blower ; (b) the ether apparatus. A.?The air current is supplied by an electric motor of | h.p., driving a rotary blower, and is made to pass from the blower through an air filter, and then through a two-necked Wolff's bottle half-filled with water. The air fil...

This experiment was conducted to determine how much contaminant could be expected to be inhaled when overbreathing several different types of respirators. These included several tight-fitting and loose-fitting powered air-purifying respirators (PAPRs) and one air-purifying respirator (APR). CO(2) was used as a tracer gas in the ambient air, and several loose-and tight-fitting respirators were t...

There have been several reports of gas embolism occurring during off-pump coronary artery bypass graft (OPCAB) surgery. However, all these cases of air embolism were associated with the repair of venous circulation, using a CO(2) blower. In this report, we describe a rare case of air embolism in the coronary arteries associated with the use of a CO(2) blower during OPCAB. There was no injury to...

Introduction:  The use of carbon dioxide blower has been recognized as the standard of care in patients undergoing beating coronary artery bypass grafting (CABG) due to higher solubility and lower risk of embolization. On the other hand, the compressed air blower has gone out of use since air can be easily trapped and is less soluble which can cause coronary embolism. The prese...

Currently, total electricity consumption of furnaces is unregulated, tested at laboratory conditions using the DOE test procedure, and is reported in the GAMA directory as varying from 76 kWh/year to 1,953 kWh/year. Furnace blowers account for about 80% of the total furnace electricity consumption and are primarily used to distribute warm air throughout the home during furnace operation as well...

Evaluation of energy requirements is an important part of optimizing blower selection for aeration applications. In order to calculate blower power it is important to use actual process requirements and appropriate ambient conditions. A methodology is developed to establish the air flow, pressure, and ambient conditions that are reflective of operational energy use without excessive engineering...

The objective of the research was to assess the outcomes on the spray patterns produced by the different feasible adjustments of two different air blast sprayers and one mist blower sprayer, commonly employed for treatments to Apulian “tendone” vineyards. The spray profiles of these machines and the respective refinements affected by the alteration of the available adjusting devices were evalua...