منابع مشابه
Model-Based Diagnostics for Air Handling Units
Introduction In most large air-conditioned buildings, air-handling units account for a significant portion of total building energy consumption and have a major impact on comfort conditions and maintenance costs. The devices within an air-handling unit either use energy directly in the case of fans, or indirectly, in the case of heat exchangers, which impose loads on the chiller and boiler plan...
متن کاملA Root Cause Analysis of Haemolysis Encountered in Leuco-filtration of Stored Packed Red Cells Units
Background and Aims: Leukoreduction of blood components has reduced the incidence of transfusion-associated adverse events. Leucofiltration is the most effective method of leukoreduction. We encountered haemolysis in a series of leucofiltered units. This stressed our precious inventory, added to financial loss, increased our turn-around time to issue leucofiltered blood units, and placed doubts...
متن کاملPilot study of high-performance air filtration for classroom applications.
UNLABELLED A study was conducted to investigate the effectiveness of three air purification systems in reducing the exposure of children to air contaminants inside nine classrooms of three Southern California schools. Continuous and integrated measurements were conducted to monitor the indoor and outdoor concentrations of ultrafine particles (UFPs), fine and coarse particulate matter (PM2.5 and...
متن کاملImprovement of Air Quality in Vehicle Cabins by Nanoparticle Filtration
A filter system is presented which allows the reduction of the concentration of ultrafine particles in vehicle cabins to very low levels. The original ventilation system is switched to the recirculation mode and all cabin intake air is supplied via a retrofitted filter system. Tests with a variety of different vehicles (from passenger cars to coaches) show the efficiency of the system. Filters ...
متن کاملRecirculating Air Filtration Significantly Reduces Exposure to Airborne Nanoparticles
BACKGROUND Airborne nanoparticles from vehicle emissions have been associated with adverse effects in people with pulmonary and cardiovascular disease, and toxicologic studies have shown that nanoparticles can be more hazardous than their larger-scale counterparts. Recirculating air filtration in automobiles and houses may provide a low-cost solution to reducing exposures in many cases, thus re...
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ژورنال
عنوان ژورنال: Respiratory Medicine
سال: 1995
ISSN: 0954-6111
DOI: 10.1016/0954-6111(95)90147-7