This data article presents the raw used in “Experimental and analytical evaluation of exhaust air heat pumps ventilation-based heating systems” [1]. The set contains measurement results a field monitoring on residential pump system (air-to-air pump) Germany. could be to investigate dynamic behavior performance systems. temperature humidity all four sides unit. Moreover, electrical consumption u...

Ventilation and air conditioning systems are necessary for developing proper parameters of indoor environment in operating rooms. The main task of ventilation and air conditioning in those specific areas consists in creating desirable temperature, reducing the number of microorganisms and the concentrations of hazardous gases and substances in the air, as well as ensuring the proper direction o...

In this study, based on the numerical simulation , we investigated aerosol pollution diffusion in residential bathroom with exhaust vents at different positions and ventilation methods. The results show that setting an air outlet under side wall next to toilet can discharge pollutants time which not only shortens path of but also optimizes organization form. dry wet separation area wash separat...

BACKGROUND The authors hypothesized that nasal mask ventilation may be more effective than combined oral-nasal mask ventilation during induction of general anesthesia. They tested this hypothesis by comparing the volume of carbon dioxide removed per breath with nasal versus combined oral-nasal mask ventilation in nonparalyzed, apneic, adult subjects during induction of general anesthesia. MET...

An analytical solution is obtained for the diffraction problem. In an infinite cylindrical duct, sound waves are emanating by a ring source. The duct rigid z < l and perforated > l. mixed boundary value problem defined Wiener Hopf equation, using Fourier transform technique. Then numerical obtained. influence of parameters on phenomenon displayed graphically. present study can be used as model ...

The cost of nosocomial infections in the United States is estimated to be $4 billion to $5 billion annually. Applying a scientifically based analysis to disease transmission and performing a site specific risk analysis to determine the design of the ventilation system can provide real and long term cost savings. Using a scientific approach and convincing data, this paper hypothetically illustra...

The present study aimed at investigating the effects of ventilation strategies on indoor air quality (IAQ) in schools. Measurements thermal environment and IAQ were performed over 5 school days 45 primary classrooms Gothenburg, Sweden, grouped into three categories according to their system: category A) natural or exhaust ventilation, automated window opening; B) balanced mechanical systems wit...