A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Design considerations with ventilation-radiators: Comparisons to traditional two-panel radiators
AbstractPerformance of heat emitters in a room is affected by their interaction with the ventilation system. A radiator gives more heat output with increased air flow along its heat transferring surface, and with increased thermal difference to surrounding air. Radiator heat output and comfort temperatures in a small one-person office were studied using different positions for the ventilation air inlet. In two of the four test cases the air inlet was placed between radiator panels to form ventilation-radiator systems. Investigations were made by CFD (Computational Fluid Dynamics) simulations, and included visualisation of thermal comfort conditions, as well as radiator heat output comparisons. The room model was exhaust-ventilated, with an air exchange rate equal to what is recommended for Swedish offices (7ls−1 per person) and cold infiltration air (−5°C) typical of a winter day in Stockholm.Results showed that under these conditions ventilation-radiators were able to create a more stable thermal climate than the traditional radiator ventilation arrangements. In addition, when using ventilation-radiators the desired thermal climate could be achieved with a radiator surface temperature as much as 7.8°C lower. It was concluded that in exhaust-ventilated office rooms, ventilation-radiators can provide energy and environmental savings.
Design considerations with ventilation-radiators: Comparisons to traditional two-panel radiators
AbstractPerformance of heat emitters in a room is affected by their interaction with the ventilation system. A radiator gives more heat output with increased air flow along its heat transferring surface, and with increased thermal difference to surrounding air. Radiator heat output and comfort temperatures in a small one-person office were studied using different positions for the ventilation air inlet. In two of the four test cases the air inlet was placed between radiator panels to form ventilation-radiator systems. Investigations were made by CFD (Computational Fluid Dynamics) simulations, and included visualisation of thermal comfort conditions, as well as radiator heat output comparisons. The room model was exhaust-ventilated, with an air exchange rate equal to what is recommended for Swedish offices (7ls−1 per person) and cold infiltration air (−5°C) typical of a winter day in Stockholm.Results showed that under these conditions ventilation-radiators were able to create a more stable thermal climate than the traditional radiator ventilation arrangements. In addition, when using ventilation-radiators the desired thermal climate could be achieved with a radiator surface temperature as much as 7.8°C lower. It was concluded that in exhaust-ventilated office rooms, ventilation-radiators can provide energy and environmental savings.
Design considerations with ventilation-radiators: Comparisons to traditional two-panel radiators
Myhren, Jonn Are (author) / Holmberg, Sture (author)
Energy and Buildings ; 41 ; 92-100
2008-07-28
9 pages
Article (Journal)
Electronic Resource
English
Design considerations with ventilation-radiators: Comparisons to traditional two-panel radiators
| Online Contents | 2009
Design considerations with ventilation-radiators: Comparisons to traditional two-panel radiators
| Online Contents | 2009
| Engineering Index Backfile | 1935
Engineering Index Backfile | 1909
| Engineering Index Backfile | 1934