| 报告题名: | Leco. Simulating Earth to Air Heat Exchangers. Ventilation preheating and pre-cooling |
| 作者: | Murphy, Mark Allen
|
| 出版者: | SINTEF akademisk forlag
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| 出版年: | 2011
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| 发表日期: | 2011
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| 国家: | 挪威
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| 语种: | 英语
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| 英文关键词: | Simulation
; Earth to Air Heat Exchangers
; Ground Coupling
; Energy savings
; Office buildings
; Energibruk
; Kontorbygg
; VDP::Teknologi: 500
; VDP::Technology: 500
|
| 中文主题词: | 建筑物
; 高温
|
| 主题词: | BUILDINGS
; HEAT
|
| 英文摘要: | A primary objective with passive houses is
to reduce the energy demand for heating and
cooling. A well-insulated and airtight building envelope, highly efficient heat recovery within
the ventilation system, low-energy windows and
doors, and thermal bridge free constructions
are common characteristics for passive houses.
When all these characteristics are in place,
what becomes the next step? What else should one improve in order to reduce the energy use
of the building?
One possible answer could be to improve the ventilation system by installing an earth-to-air
heat exchanger (ETAHE). An ETAHE utilizes
the thermal mass of the soil surrounding or
beneath the building in order to preheat or pre-cool incoming ventilation air. With the
ground’s large thermal capacity and relatively stable temperatures, outdoor temperature
variations are dampened and ventilation h
eating and cooling loads are reduced.
Using the building energy simulation software TR
NSYS, this report investigated the heating
potential and cooling potential of an ETAHE in
a mechanically ventilated passive house,
ranging in size from a detached house to a small office. Simulations of the ventilation system
within a small office indicate that a parallel
piped ETAHE, connected to an efficient air
handling unit, will provide energy savings ranging between 6 and 14.6 kWh/m
2
floor space
during a normal year with base ventilation at nigh
t and 4 air circulations
per hour during day. |
| URL: | https://brage.bibsys.no/xmlui/bitstream/handle/11250/2420221/Prosjektrapport70.pdf?sequence=3&isAllowed=y
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/28776
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| File Name/ File Size |
Content Type |
Version |
Access |
License |
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| Prosjektrapport70.pdf（750KB） | 研究报告 | -- | 开放获取 | | View
Download
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| Recommended Citation: | |
Murphy, Mark Allen. Leco. Simulating Earth to Air Heat Exchangers. Ventilation preheating and pre-cooling. 2011-01-01.
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