Air quality has an impact on human life. The incidence of forest and land fires caused many casualties. On the other hand, poor air as a result also threatens life directly. Therefore Pollution Smoke Reduction Tool was designed solution to problems pollution smoke due fires. purpose writing this article is describe design manufacture Reducers well its working principles. method used descriptive...

Forced-air-warming (FAW) is an effective and widely used means for maintaining surgical normothermia, but FAW also has the potential to generate and mobilize airborne contamination in the operating room.We measured the emission of viable and non-viable forms of airborne contamination from an arbitrary selection of FAW blowers (n=25) in the operating room. A laser particle counter measured parti...

Raised-floor data centers usually suffer from the local hotspots resulted uneven cool air delivery. These not only degrade server performance, but also threat equipment reliability. The commonly used industrial practice of increasing Computer Room Air Conditioner (CRAC) blower speed for removing is energy inefficient and may lead to overcooling some servers. In this paper, we explore potential ...

BACKGROUND Infants and children cool quickly because their surface area (and therefore heat loss) is large compared with their metabolic rate, which is mostly a function of body mass. Rewarming rate is a function of cutaneous heat transfer plus metabolic heat production divided by body mass. Therefore, the authors tested the hypothesis that the rate of forced-air rewarming is inversely related ...

The presence of noises in the vehicle cabin is an annoyance phenomenon which significantly affected by heating, ventilation, and air conditioning (HVAC) system. There are very limited studies reported on specific type noise characterisation validation for both model system levels. present study developed a HVAC that reflects operation as real vehicle, investigation components were carried out i...

Abstract Ventilation duct systems are indispensable for air purification and room temperature management in industrial commercial buildings. The noise generated by blowers ventilating spaces should be as low possible. In addition, to power the wireless nodes monitoring ventilation conditions such pressure at any positions all ducts, electric is preferred situ without batteries wired supply. thi...

Abstract In order to provide continuous supply for succeeding application, abundant electricity energy and solar can be stored by means of thermal storage technology. the present paper, heat storage/exothermic tests are conducted evaluate performance release in self – designed box equipped with composite phase change material (PCM), delivery surrounding environment is through an air blower dire...

One of the primary factors for generating heating and cooling loads in apartment houses is infiltration. However, evaluation method infiltration rates has not been well established Korea. The existing measures air change per hour a house at 50 Pa (ACH50) divides it by leakage–infiltration ratio, N = 20, as suggested Lawrence Berkeley National Laboratory (LBL). In this study, to evaluate average...