INTEGRATED AIRFLOW CONTROL FOR VARIABLE AIR VOLUME AND AIR HANDLER HVAC SYSTEMS TO REDUCE BUILDING HVAC ENERGY USEAn airflow system includes a damper apparatus configured to adjust a flow volume of recirculated air and a flow volume of outside air within the airflow system, a variable air ...
Indoor air pollution refers to “dust and dirt in the air in a building that could cause health problems if we inhale it”. Poor ventilation, dampness, chemicals in cleaning products, and paints are all possible causes. It is made up of small particles that can’t be smelled or seen, ma...
The central motor is fixed to the lower duct, while the sirocco fan is anchored to the rotating shaft. The lower and upper ducts are fixed to the upper and lower housings, respectively, and these housings are tightened with bolts. Regarding the air flow path, air is supplied through a ...
Considering how fast this disease has spread across the world, many researchers [7] state that an additional mode of transmission, nuclei borne by air droplets, plays an important role in the spread of this virus. Flow dynamics of air particles can be complex and include turbulent jets, ...
-A new section of backdraft dampers for solar air heating collectors-- several DIY and commercial designs... -A couple new entries on the micro hydro page... -Buried and encapsulated HVAC ducts in the attic... -DIY solar lighting for dim parts of the house during the day... ...
-Mounting large insulated glass glazing units in a sunspace... -A DIY installation of a Ground Source Heat Pump AND 5 KW PV array-- no heat bills and low emissions... -Very interesting video tour of sandbed seasonal storage solar home in Michigan... -Air duct temperature drop calculator...
Air sealing was effective only in some cases, and appears to be most applicable for sites without HVAC equipment located in the garage. Mechanical exhaust ventilation was effective to some degree at all sites, and was the only reliable method at sites with HVAC equipment in the garage. ...
Here, Q describes ‘Sensible heat flow’ that affects Heat Ventilation & Air Conditioning equipment size and energy consumption, and the goal is to minimize this value for overall economics and efficiency. Higher Q value imposes high first- and recurring operation costs on the HVAC system [32]....
Internal blinds perform better in improving occupant thermal comfort but increase artificial lighting while integrating PV panels, as external shading overhangs reduce cooling energy but also produce energy that can be utilized for building services, such as air conditioning. In this study, the results...