Nowadays, energy saving is considered a key issue worldwide, as it brings variety of benefits: reducing greenhouse gas emissions and the demand for imports lowering costs on household economy-wide level. Researchers building designers are looking to optimize efficiency by means new technologies. Changes can also be made in existing buildings reduce consumption air conditioning systems, even dur...

Tuberculosis and in some cases, flu, colds other airborne diseases. Since research is one of the biggest concerns causing influenza pandemics, most surrounding aerosol contamination revolves around environmental influences on virus. Many literatures suggest that transmitted primarily through close contact, such as exposure to large respiratory droplets, direct mouth-to-mouth contact short-term ...

The proper selection of airflow measurement devices can be critical to the performance of today’s state-of-the-art HVAC system. Many of the requirements and limitations of one technology are often mistakenly thought to apply to every other. Not all technologies result in equal performance, even when used under similar conditions. Accuracy and repeatability vary between technologies and are most...

Although the driving noise of electric vehicles has been reduced compared with that internal combustion engine vehicles, a new interior problem is emerging. It crucial to reduce heating, ventilation, and air conditioning (HVAC) system, which one main causes noise. Therefore, in this study, metasilencer an acoustic metasurface structure presented. The was designed restrain travel direction sound...

In this paper, a heating, ventilating and air-conditioning (HVAC) system was designed and two different damper gap rates (actuators position) of the HVAC system were controlled by a conventional PID (proportional–integral–derivative) controller. One of the dampers was controlled by using the required temperature for the interested indoor volume while the other damper was controlled by using the...

This paper describes a procedure for deriving a dynamic model of an HVAC system that consists of a zone, heating coil, cooling and dehumidifying coil, humidifier, ductwork, fan, and mixing box. In particular, the interest is centered on control strategies to reduce energy consumption and improving the quality of the indoor environment. Indoor temperature and humidity may be maintained at set po...

Abstract The topic of energy saving is a constant in everyday life, and it widespread all over the world. Space heating using solar panels most used renewable source energy, but application for cooling fluids refrigeration growing very fast. Among techniques refrigeration, this work focused on Desiccant Cooling. In particular, with use dynamic simulation software, was possible to study heat sup...