CN107025352A - Severe cold area existing building energy-conserving reconstruction method - Google Patents
Severe cold area existing building energy-conserving reconstruction method Download PDFInfo
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Abstract
Severe cold area existing building energy-conserving reconstruction method.Existing building energy conservation scheme can not meet the demand of Border in Harbin Area.The present invention is realized by following steps：Building each household will be individually for as unit room and between building stair room and carry out rooms of buildings division, sum between full building is counted；Hourly load carries out simulation calculating to building model using DeST h softwares to foundation in the winter time：Set thermal insulating building enclosure parameter；Heating period simulation is carried out to the building model of foundation；The roof of analysis building, exterior wall, exterior window, the different heat-insulating properties of earth construction, obtain the changing rule of each structure heat consumption of building；The heat consumption proportion of four structures in roof, exterior wall, exterior window, ground of each building is drawn, highest structure shared by heat consumption ratio is regard as optimal building energy-saving renovation policy goals.The present invention designs the building energy conservation scheme for Border in Harbin Area.
Description
Technical field：
The present invention relates to a kind of severe cold area existing building energy-conserving reconstruction method.
Background technology：
Different universities and colleges, research institution have carried out the research of considerable scale for each department, all types of building energy conservations respectively.
Residential architecture accounts for national severe cold and BUILDINGS IN COLD AREAS area 80% or so, therefore the reducing energy consumption of existing residential building is turned into
In terms of the important research of severe cold and BUILDINGS IN COLD AREAS energy-conservation.Ma Chao, Liu Yanfeng etc. are to northwest village residential housing peripheral protective knot
Structure thermal property and building energy consumption are analyzed, it is proposed that be suitable for northwest village the Residential Building Energy-Saving and heating strategy, but
More it is applied to newly-built agriculture residence.Zheng Wu good fortunes etc. propose 7 kinds of residential architecture fender body set sections for being suitable for different times construction
Transformable scheme, while comparing analysis to each scheme.Horse jump standing forest analyses heating system in the Nong Zhai rooms of areas of Shenyang
Thermal environment and the influence of building enclosure building energy conservation, and verify the great potential of Energy Efficiency of Rural Residential Building transformation.Li Gangs etc. are right first
Areas of Shenyang grange building enclosure present situation, heating system, using energy source situation, winter indoor thermal environment propose to change accordingly
Good suggestion.Secondly, simulation calculating is carried out to each reducing energy consumption scheme, proposes comprehensive energy-saving scheme.Zheng Yu a kind of jades are from low energy building
Two aspects of Design of Retaining Structure and utilization of new energy resources, inquire into the energy-saving design of severe cold area low energy building.Dong Xinlu is selected
The peripheral protective energy saving retrofit technology for being adapted to severe cold area is furtherd investigate, it is proposed that the grange of suitable northeast severe cold area
Peripheral structure reducing energy consumption scheme, and carried out Evaluation on Energy Saving.In view of regional feature residing for residential building, economic civilization,
How the diversity of climatic characteristic, be only the weight of research with reference to the building energy conservation scheme that local characteristic finds most suitable this area
Point.The present invention Harbin City periphery residential quarters are investigated on the spot, using wherein one middle level residential building of certain cell as according to
According to, with reference to code of building energy efficiency and institute's investigation residential architecture feature, building envelope and its heat-insulating property are suitably modified,
To which 65% energy-saving index can be met with most economical, reasonable manner.
The content of the invention：
The invention aims to solve existing building energy conservation scheme not meeting the demand of Border in Harbin Area, and carry
A kind of severe cold area existing building energy-conserving reconstruction method in the suitable Harbin region gone out.
Above-mentioned purpose is realized by following technical scheme：
A kind of severe cold area existing building energy-conserving reconstruction method, it is characterized in that：Described severe cold area existing building
Energy-conserving reconstruction method is realized by following steps：
Step 1: the foundation of building model：Using building each household as unit room and will between building stair individually
Rooms of buildings division is carried out for a room, sum between full building is counted；
Step 2: hourly load carries out simulation meter to the building model set up using DeST-h softwares to step one in the winter time
Calculate：Set thermal insulating building enclosure parameter；Heating period simulation is carried out to the building model of foundation using DeST-h softwares；Analysis is built
The roof of thing, exterior wall, exterior window, the different heat-insulating properties of earth construction are built, the changing rule of each structure heat consumption of building is obtained；
DeST-h softwares refer to residential housing thermal environment HVAC system simulation softward platform；
Step 3: drawing the roof of each building, exterior wall, exterior window, the heat consumption proportion of four, ground structure, it will consume
Highest structure shared by heat ratio is as optimal building energy-saving renovation policy goals, so as to propose that the energy-conservation of fabric structure changes
Make method.
Beneficial effect：
A kind of severe cold area existing building energy-conserving reconstruction method that the present invention is used is the building energy conservation in order to solve
Scheme can not meet the needs of problems of Border in Harbin Area and propose, by calculating architectural design thermic load, to each several part heat dissipation
Amount is analyzed, and the ratio shared by Air Infiltration that finds is 44.2% to the maximum, and exterior window is 30.9%, exterior wall and roof are respectively
20.7% and 3.3%, ground and external door account for 0.9% altogether.Mainly influence heat consumption has heat loss by infiltration, exterior window heat dissipation
Amount, exterior wall and roof heat consumption.Calculate the influence of exterior wall, roof, ground and the exterior window of different heat-insulating properties to building energy consumption.
It can reduce the heat transfer coefficient of peripheral structure by increasing insulation layer thickness, strengthen heat insulation effect.Exterior window heat-insulating property is main
Depending on the heat transfer coefficient and shading coefficient of exterior window, severe cold area is more suitable for the outer of low heat transfer coefficient high-sunshade coefficient type
Window.
Embodiment：
Embodiment one：
A kind of severe cold area existing building energy-conserving reconstruction method of present embodiment, described severe cold area existing building
Thing energy-conserving reconstruction method is realized by following steps：
Step 1: the foundation of building model：Using building each household as unit room and will between building stair individually
Rooms of buildings division is carried out for a room, sum between full building is counted；
Step 2: hourly load carries out simulation meter to the building model set up using DeST-h softwares to step one in the winter time
Calculate：Set thermal insulating building enclosure parameter；Heating period simulation is carried out to the building model of foundation using DeST-h softwares；Analysis is built
The roof of thing, exterior wall, exterior window, the different heat-insulating properties of earth construction are built, the changing rule of each structure heat consumption of building is obtained；
Step 3: drawing the roof of each building, exterior wall, exterior window, the heat consumption proportion of four, ground structure, it will consume
Highest structure shared by heat ratio is as optimal building energy-saving renovation policy goals, so as to propose that the energy-conservation of fabric structure changes
Make method.
Embodiment two：
From unlike embodiment one, a kind of severe cold area existing building reducing energy consumption side of present embodiment
Method, the setting heat preserving exterior wall building enclosure parameter described in step 2, specially：Described thermal insulating building enclosure includes roof, outer
Wall, exterior window, ground, described parameter refer to thermal resistance and heat transfer coefficient；Wherein, exterior wall thermal resistance is 2.792m2.K/W, heat transfer coefficient
For 0.339W/m2.K；Roof thermal resistance is 3.398m2.K/W, heat transfer coefficient is 0.281W/m2.K；Ground thermal resistance is 0.723m2.K/
W, heat transfer coefficient is 1.05W/m2.K；Exterior window uses three layers of hollow sliding plastic-steel window of single frame, and heat transfer coefficient is 2W/m2.K。
Embodiment three：
From unlike embodiment one or two, a kind of severe cold area existing building of present embodiment energy-conservation changes
Method is made, the building model progress heating period simulation using DeST-h softwares to foundation described in step 2 is specially：Setting
The total number of days of heating period, the indoor temperature of setting heating period, setting staircase temperature, simulation calculate average of the whole year outdoor temperature, confession
Temperature on average, gross heat input, thermal load parameter, each floor thermic load and heating load outside warm period room.
Embodiment four：
From unlike embodiment three, a kind of severe cold area existing building reducing energy consumption side of present embodiment
Method, the roof of the analysis building described in step 2, exterior wall, exterior window, the different heat-insulating properties of earth construction, obtains building each
The changing rule of structure heat consumption, be specially：
Mean heat flux value reduces the situation of change of amplitude when record gradually increases roofing insulation thickness, obtains roof guarantor
Gradually increased thickness and heat insulation effect improve the relation of degree to warm layer；
Thermal conduction resistance, the value of heat transfer coefficient and gross heat input when record gradually increases insulating layer of external wall thickness, are obtained
Gradually increased thickness and heat insulation effect improve the relation of degree to insulating layer of external wall；
The heat transfer coefficient of recording different types exterior window, the value of shading coefficient, choose low heat transfer coefficient high-sunshade coefficient type
Exterior window；
Mean heat flux value reduces the situation of change of amplitude when recording incrementally face insulation layer thickness, obtains ground guarantor
Gradually increased thickness and heat insulation effect improve the relation of degree to warm layer.
Claims (4)
1. severe cold area existing building energy-conserving reconstruction method, it is characterized in that：Described severe cold area existing building energy-conservation changes
Method is made to realize by following steps：
Step 1: the foundation of building model：Using building each household is as unit room and one will be individually between building stair
Individual room carries out rooms of buildings division, counts sum between full building；
Step 2: hourly load carries out simulation calculating to the building model set up using DeST-h softwares to step one in the winter time：
Set thermal insulating building enclosure parameter；Heating period simulation is carried out to the building model of foundation using DeST-h softwares；Analysis building
The roof of thing, exterior wall, exterior window, the different heat-insulating properties of earth construction, obtain the changing rule of each structure heat consumption of building；
Step 3: the roof of each building, exterior wall, exterior window, the heat consumption proportion of four, ground structure are drawn, by heat consumption
Highest structure shared by ratio is as optimal building energy-saving renovation policy goals, so as to propose the reducing energy consumption side of fabric structure
Method.
2. existing building energy-conserving reconstruction method in severe cold area according to claim 1, it is characterized in that, described in step 2
Heat preserving exterior wall building enclosure parameter is set, is specially：Described thermal insulating building enclosure includes roof, exterior wall, exterior window, ground, institute
The parameter stated refers to thermal resistance and heat transfer coefficient；Wherein, exterior wall thermal resistance is 2.792m2.K/W, heat transfer coefficient is 0.339W/m2.K；Room
Top thermal resistance is 3.398m2.K/W, heat transfer coefficient is 0.281W/m2.K；Ground thermal resistance is 0.723m2.K/W, heat transfer coefficient is
1.05W/m2.K；Exterior window uses three layers of hollow sliding plastic-steel window of single frame, and heat transfer coefficient is 2W/m2.K。
3. existing building energy-conserving reconstruction method in severe cold area according to claim 1 or 2, it is characterized in that, step 2 institute
That states carries out heating period simulation using DeST-h softwares to the building model of foundation, is specially：Set the total number of days of heating period, set
Determine the indoor temperature of heating period, setting staircase temperature, simulation calculates average of the whole year outdoor temperature, average air outside heating period room
Temperature, gross heat input, thermal load parameter, each floor thermic load and heating load.
4. existing building energy-conserving reconstruction method in severe cold area according to claim 3, it is characterized in that, described in step 2
The roof of analysis building, exterior wall, exterior window, the different heat-insulating properties of earth construction, obtain the change of each structure heat consumption of building
Law, be specially：
Mean heat flux value reduces the situation of change of amplitude when record gradually increases roofing insulation thickness, obtains roofing insulation
Gradually increased thickness improves the relation of degree with heat insulation effect；
Thermal conduction resistance, the value of heat transfer coefficient and gross heat input when record gradually increases insulating layer of external wall thickness, obtain exterior wall
Gradually increased thickness and heat insulation effect improve the relation of degree to heat-insulation layer；
The heat transfer coefficient of recording different types exterior window, the value of shading coefficient, choose the outer of low heat transfer coefficient high-sunshade coefficient type
Window；
Mean heat flux value reduces the situation of change of amplitude when recording incrementally face insulation layer thickness, obtains ground insulating layer
Gradually increased thickness improves the relation of degree with heat insulation effect.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108345758A (en) * | 2018-03-12 | 2018-07-31 | 上海城乡建筑设计院有限公司 | A kind of residential housing building enclosure selection method |
| CN108732206A (en) * | 2018-06-07 | 2018-11-02 | 合肥暖流信息科技有限公司 | A kind of method and system for realizing the identification of building heat preservation performance |
| CN111157570A (en) * | 2019-12-31 | 2020-05-15 | 国网北京市电力公司 | Method, system and device for testing thermal inertia of house |
| CN111199065A (en) * | 2019-12-12 | 2020-05-26 | 珠海中建兴业绿色建筑设计研究院有限公司 | Zero-energy-consumption building design method and device and terminal equipment |
| CN114936813A (en) * | 2022-07-25 | 2022-08-23 | 中稀产业发展(天津)集团有限公司 | Method for evaluating energy-saving performance of building after energy-saving modification of building outer wall |
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| US20140188571A1 (en) * | 2012-12-27 | 2014-07-03 | Electronics And Telecommunications Research Institute | Apparatus and method for evaluating energy saving based on simulation |
| CN105389419A (en) * | 2015-10-19 | 2016-03-09 | 上海市建筑科学研究院(集团)有限公司 | Simple and easy method for energy-saving effect evaluation of residential buildings |
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| US20140188571A1 (en) * | 2012-12-27 | 2014-07-03 | Electronics And Telecommunications Research Institute | Apparatus and method for evaluating energy saving based on simulation |
| CN105389419A (en) * | 2015-10-19 | 2016-03-09 | 上海市建筑科学研究院(集团)有限公司 | Simple and easy method for energy-saving effect evaluation of residential buildings |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108345758A (en) * | 2018-03-12 | 2018-07-31 | 上海城乡建筑设计院有限公司 | A kind of residential housing building enclosure selection method |
| CN108732206A (en) * | 2018-06-07 | 2018-11-02 | 合肥暖流信息科技有限公司 | A kind of method and system for realizing the identification of building heat preservation performance |
| CN111199065A (en) * | 2019-12-12 | 2020-05-26 | 珠海中建兴业绿色建筑设计研究院有限公司 | Zero-energy-consumption building design method and device and terminal equipment |
| CN111199065B (en) * | 2019-12-12 | 2023-09-22 | 珠海中建兴业绿色建筑设计研究院有限公司 | Zero-energy-consumption building design method and device and terminal equipment |
| CN111157570A (en) * | 2019-12-31 | 2020-05-15 | 国网北京市电力公司 | Method, system and device for testing thermal inertia of house |
| CN114936813A (en) * | 2022-07-25 | 2022-08-23 | 中稀产业发展(天津)集团有限公司 | Method for evaluating energy-saving performance of building after energy-saving modification of building outer wall |
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