Balance point temperature for heating as a function of glazing orientation and room time constant
| Autor: | Imre Csáky, Ferenc Kalmár, Zoltán Verbai |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
business.industry 020209 energy Mechanical Engineering Műszaki tudományok 0211 other engineering and technologies Time constant 02 engineering and technology Building and Construction Mechanics Heat transfer coefficient Gépészeti tudományok Glazing 021105 building & construction Thermal 0202 electrical engineering electronic engineering information engineering Thermal mass Passive solar building design Electrical and Electronic Engineering business Envelope (mathematics) Heating degree day Simulation Civil and Structural Engineering |
| Zdroj: | Energy and Buildings. 135:1-9 |
| ISSN: | 0378-7788 |
| Popis: | In continental climates heating accounts for a significant part of the total energy consumption of a residential building with average thermal characteristics of the envelope. Solar heat gains have to be used wisely in order to reduce the energy need for heating. Glazed ratio of the facades, orientation of the transparent area and thermal mass has to be properly chosen in order to obtain the desired utilization factor. In this paper the effects of window size, thermal mass and window orientation on the balance point temperature are analysed in case of a reference room. The calculation methodology given by EN ISO 13790 standard was used. Measurements were done in order to validate the model. Performing the calculus on 48 different cases it was shown, that differences of even 11% can appear between the energy demands for heating (for similar overall heat transfer coefficients of the external building elements). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect