Effects of the room temperature sensor position and radiator sizing on indoor thermal comfort and energy performances
| Autor: | Ardeshir Mahdavi, Gian Luca Morini, Matthias Schuss, Jean Pierre Campana |
|---|---|
| Přispěvatelé: | Kurnitski J., Wargocki P., Mazzarela L., Zhang H., Nastase I., Tanabe S.-I. ,Gameiro da Silva M.C., Cao G., Inard C., Campana J.P., Schuss M., Mahdavi A., Morini G.L. |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
lcsh:GE1-350
thermal sensors Water flow business.industry Airflow 0211 other engineering and technologies Mechanical engineering Thermal comfort 02 engineering and technology 010501 environmental sciences 01 natural sciences Sizing law.invention Compensation (engineering) HVAC system law indoor comfort Thermal HVAC Environmental science 021108 energy Radiator business lcsh:Environmental sciences 0105 earth and related environmental sciences |
| Zdroj: | E3S Web of Conferences, Vol 111, p 01006 (2019) |
| ISSN: | 2267-1242 |
| Popis: | In this paper, a simplified zonal model for the evaluation of the spatial distribution of the air temperature in a thermal zone is presented. This model, in which the air flow is caused only by buoyancy forces, is implemented in ALMABuild. The model is used for the analysis of the effect of the temperature sensor positioning on the control system behaviour and on the indoor comfort conditions. This analysis is performed considering a multi-zone building composed by three offices, focusing the evaluation to the central one. The office is heated by means of a radiator in which the hot water flow rate is varied by a valve controlled via a room temperature sensor. By means of numerical simulations, indoor comfort conditions, energy consumptions and control system response are evaluated for three different sensor positions (far from the radiator, in the middle of the office, close to the radiator), two radiator sizes (one obtained by imposing a high supply water temperature, 80 °C, the other a low supply temperature, 60 °C) and two control strategies (weather compensation and fast restart). The results presented in this study and demonstrate how complete dynamic energy simulation tools can provide to the designer important information, like the room temperature sensor position that should be close to the emitter and far from cold external walls, for the optimal design of HVAC systems. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|