CN109063236A - A method of air conditioner air outlet angle of flare is calculated using fractal dimension - Google Patents
A method of air conditioner air outlet angle of flare is calculated using fractal dimension Download PDFInfo
- Publication number
- CN109063236A CN109063236A CN201810631048.0A CN201810631048A CN109063236A CN 109063236 A CN109063236 A CN 109063236A CN 201810631048 A CN201810631048 A CN 201810631048A CN 109063236 A CN109063236 A CN 109063236A
- Authority
- CN
- China
- Prior art keywords
- air outlet
- flare
- air conditioner
- fractal dimension
- conditioner air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
Abstract
The invention discloses a kind of methods for calculating air conditioner air outlet angle of flare using fractal dimension, comprising the following steps: acquisition speed data calculate fractal dimension, calculate air conditioner air outlet angle of flare.The instantaneous velocity time series data that the present invention passes through measurement air conditioner air outlet, and the instantaneous velocity time series data of measurement is calculated, obtain the fractal dimension of speed signal, it further calculates to obtain air conditioner air outlet angle of flare by the fractal dimension of speed signal, the present invention can be suitable for round air outlet and item stitches air outlet.The air conditioner air outlet angle of flare that the present invention obtains compares with obtained air conditioner air outlet angle of flare is measured at present, and accuracy is higher, simultaneously, directly avoid the measurement error in measurement process, meanwhile the present invention realizes the intelligent measure of automation, improves measurement efficiency.The present invention compare current measurement method be more convenient user operation, meanwhile, air conditioner air outlet angle of flare more can intuitively be shown.
Description
Technical field
The invention belongs to air-conditioning technical fields, and in particular to a kind of application fractal dimension calculating air conditioner air outlet angle of flare
Method.
Background technique
In Air-conditioner design, the calculating of air current composition is critically important link, the mixability of air circulation jet, jet stream side
It is influenced to, jet flow section shape etc. by air-supply mouth-shaped, size and installation site, therefore air outlet is in air-conditioning ventilation system
In play highly important role, and the flow pattern and the characteristics of motion of its jet stream of air outlet of different shapes are also different.
The angle of flare of air outlet is one of its structure feature, and angle of flare is to be determined by experiment at present, various countries' measurement
Angle of flare conclusion difference is very big, causes certain difficulty to engineering.
Summary of the invention
The present invention proposes that the purpose is to provide a kind of application fractal dimension meter in order to solve the problems existing in the prior art
The method for calculating air conditioner air outlet angle of flare.
The technical scheme is that
A method of air conditioner air outlet angle of flare is calculated using fractal dimension, it is characterised in that: the following steps are included:
I acquisition speed data
Obtain the speed data of air-conditioner air outlet section part.
II calculates fractal dimension
According to the speed data obtained in step (I), using the fractal dimension of the method calculating speed signal of box counting dimension,
Its formula is as follows:
Wherein, side length needed for N (r) refers to for covering air-conditioner air outlet is that the n of r ties up the minimal amount of box；
D refers to measurand fractal dimension.
III calculates air conditioner air outlet angle of flare
The angle of flare of air conditioner air outlet is calculated according to formula, formula is as follows:
Wherein, θ refers to air conditioner air outlet angle of flare；
K refers to experiment coefficient；
D refers to measurand fractal dimension.
Experiment COEFFICIENT K in the step III includes circle cross section coefficient and item seam section factor.
The value of the circle cross section coefficient is 3.4.
The value of the item seam section factor is 2.44.
Speed data in the step I is instantaneous velocity time series data.
The speed data passes through the speed measuring device being arranged at air conditioner air outlet and obtains.
The speed measuring device is one of tachymeter, velocity sensor.
The present invention is by the instantaneous velocity time series data of measurement air conditioner air outlet, and when to the instantaneous velocity of measurement
Between sequence data calculated, obtain the fractal dimension of speed signal, further calculated by the fractal dimension of speed signal
To air conditioner air outlet angle of flare, the present invention can be suitable for round air outlet and item stitches air outlet.
The air conditioner air outlet angle of flare that the present invention obtains compares with obtained air conditioner air outlet angle of flare is measured at present,
Accuracy is higher, meanwhile, the measurement error in measurement process is directly avoided, meanwhile, the present invention realizes the intelligence of automation
Measurement, improves measurement efficiency.
The present invention compare current measurement method be more convenient user operation, meanwhile, air conditioner air outlet angle of flare can
More intuitive display.
Detailed description of the invention
Fig. 1 is flow chart of the method for the present invention；
Fig. 2 is in the embodiment of the present invention one by tachymeter data measured figure；
Fig. 3 is the datagram of measurand fractal dimension in the embodiment of the present invention one；
Fig. 4 is in the embodiment of the present invention two by tachymeter data measured figure；
Fig. 5 is the datagram of measurand fractal dimension in the embodiment of the present invention two.
Specific embodiment
Hereinafter, referring to drawings and examples, the present invention is described in detail:
As shown in Figure 1, a kind of method for calculating air conditioner air outlet angle of flare using fractal dimension, comprising the following steps:
I acquisition speed data
Obtain the speed data of air-conditioner air outlet section part.
II calculates fractal dimension
According to the speed data obtained in step (I), using the fractal dimension of the method calculating speed signal of box counting dimension,
Its formula is as follows:
Wherein, side length needed for N (r) refers to for covering air-conditioner air outlet is that the n of r ties up the minimal amount of box；
D refers to measurand fractal dimension.
III calculates air conditioner air outlet angle of flare
The angle of flare of air conditioner air outlet is calculated according to formula, formula is as follows:
Wherein, θ refers to air conditioner air outlet angle of flare；
K refers to experiment coefficient；
D refers to measurand fractal dimension.
Experiment COEFFICIENT K in the step III includes circle cross section coefficient and item seam section factor.
The value of the circle cross section coefficient is 3.4.
The value of the item seam section factor is 2.44.
Speed data in the step I is instantaneous velocity time series data.
The speed data passes through the speed measuring device being arranged at air conditioner air outlet and obtains.
The speed measuring device is one of tachymeter, velocity sensor.
Embodiment one
By taking air outlet section is item seam as an example
I acquisition speed data
The speed data of air-conditioner air outlet section part is obtained, the speed data is the time series number of speed in cycle T
According to passing through tachymeter data measured such as Fig. 2:
II calculates fractal dimension
According to the speed data obtained in step (I), using the fractal dimension of the method calculating speed signal of box counting dimension,
Its formula is as follows:
Wherein, side length needed for N (r) refers to for covering air-conditioner air outlet is that the n of r ties up the minimal amount of box；
D refers to measurand fractal dimension,
Calculate D=1.6902, such as Fig. 3:
III calculates air conditioner air outlet angle of flare
The angle of flare of air conditioner air outlet is calculated according to formula, formula is as follows:
Wherein, θ refers to air conditioner air outlet angle of flare；
K refers to experiment coefficient, and the value that item stitches section factor is 2.44；
D refers to measurand fractal dimension.
Calculate θ=27 °
Embodiment two
By taking air outlet section is circle cross section as an example
I acquisition speed data
The speed data of air-conditioner air outlet section part is obtained, the speed data is the time series number of speed in cycle T
According to passing through tachymeter data measured such as Fig. 4:
II calculates fractal dimension
According to the speed data obtained in step (I), using the fractal dimension of the method calculating speed signal of box counting dimension,
Its formula is as follows:
Wherein, side length needed for N (r) refers to for covering air-conditioner air outlet is that the n of r ties up the minimal amount of box；
D refers to measurand fractal dimension,
Calculate D=1.6780, such as Fig. 5:
III calculates air conditioner air outlet angle of flare
The angle of flare of air conditioner air outlet is calculated according to formula, formula is as follows:
Wherein, θ refers to air conditioner air outlet angle of flare；
K refers to experiment coefficient, and the value of circle cross section coefficient is 3.4；
D refers to measurand fractal dimension.
Calculate θ=34.9 °
The present invention is by the instantaneous velocity time series data of measurement air conditioner air outlet, and when to the instantaneous velocity of measurement
Between sequence data calculated, obtain the fractal dimension of speed signal, further calculated by the fractal dimension of speed signal
To air conditioner air outlet angle of flare, the present invention can be suitable for round air outlet and item stitches air outlet.
The air conditioner air outlet angle of flare that the present invention obtains compares with obtained air conditioner air outlet angle of flare is measured at present,
Accuracy is higher, meanwhile, the measurement error in measurement process is directly avoided, meanwhile, the present invention realizes the intelligence of automation
Measurement, improves measurement efficiency.
The present invention compare current measurement method be more convenient user operation, meanwhile, air conditioner air outlet angle of flare can
More intuitive display.
Claims (7)
1. a kind of method for calculating air conditioner air outlet angle of flare using fractal dimension, it is characterised in that: the following steps are included:
(I) acquisition speed data
Obtain the speed data of air-conditioner air outlet section part；
(II) calculates fractal dimension
According to the speed data obtained in step (I), the fractal dimension of the method calculating speed signal of box counting dimension, formula are utilized
It is as follows:
Wherein, side length needed for N (r) refers to for covering air-conditioner air outlet is that the n of r ties up the minimal amount of box；
D refers to measurand fractal dimension；
(III) calculates air conditioner air outlet angle of flare
The angle of flare of air conditioner air outlet is calculated according to formula, formula is as follows:
Wherein, θ refers to air conditioner air outlet angle of flare；
K refers to experiment coefficient；
D refers to measurand fractal dimension.
2. a kind of method for calculating air conditioner air outlet angle of flare using fractal dimension according to claim 1, feature exist
In: the experiment COEFFICIENT K in the step (III) includes circle cross section coefficient and item seam section factor.
3. a kind of method for calculating air conditioner air outlet angle of flare using fractal dimension according to claim 2, feature exist
In: the value of the circle cross section coefficient is 3.4.
4. a kind of method for calculating air conditioner air outlet angle of flare using fractal dimension according to claim 2, feature exist
In: the value of the item seam section factor is 2.44.
5. a kind of method for calculating air conditioner air outlet angle of flare using fractal dimension according to claim 1, feature exist
In: the speed data in the step (I) is instantaneous velocity time series data.
6. a kind of method for calculating air conditioner air outlet angle of flare using fractal dimension according to claim 1, feature exist
In: the speed data passes through the speed measuring device being arranged at air conditioner air outlet and obtains.
7. a kind of method for calculating air conditioner air outlet angle of flare using fractal dimension according to claim 6, feature exist
In: the speed measuring device is one of tachymeter, velocity sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810631048.0A CN109063236B (en) | 2018-06-19 | 2018-06-19 | Method for calculating diffusion angle of air conditioner air supply outlet by applying fractal dimension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810631048.0A CN109063236B (en) | 2018-06-19 | 2018-06-19 | Method for calculating diffusion angle of air conditioner air supply outlet by applying fractal dimension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109063236A true CN109063236A (en) | 2018-12-21 |
| CN109063236B CN109063236B (en) | 2023-01-31 |
Family
ID=64820566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810631048.0A Active CN109063236B (en) | 2018-06-19 | 2018-06-19 | Method for calculating diffusion angle of air conditioner air supply outlet by applying fractal dimension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109063236B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112765745A (en) * | 2021-01-18 | 2021-05-07 | 河北建筑工程学院 | Method for calculating current air supply opening diameter considering turbulence intensity influence |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1174968A (en) * | 1996-08-23 | 1998-03-04 | 三菱电机株式会社 | Indoor unit of air condictioner and wind direction control method |
| JP2001290799A (en) * | 2000-04-10 | 2001-10-19 | Nippon Steel Corp | Stability evaluation system, control system, stability evaluating method, control method, and recording medium |
| JP2002243252A (en) * | 2001-02-21 | 2002-08-28 | Suzuki Motor Corp | Blow molding duct structure for air conditioning, and its manufacturing method |
| CN101108687A (en) * | 2006-07-19 | 2008-01-23 | 乐金电子(天津)电器有限公司 | Package structure of opening imbedding type indoor set of air-conditioner |
| JP2008298352A (en) * | 2007-05-31 | 2008-12-11 | Hitachi Zosen Corp | Control method and control device of combustion air in waste incineration facility |
| US8095583B1 (en) * | 2007-06-04 | 2012-01-10 | Everest Michael T | Chaotic and fractal field line calculations using decomposition and self winding |
| CN102437984A (en) * | 2011-11-07 | 2012-05-02 | 哈尔滨工程大学 | Modulation signal identification method based on complexity characteristic under low signal-to-noise ratio condition |
| JP2012177625A (en) * | 2011-02-25 | 2012-09-13 | Honda Motor Co Ltd | Device and method for predicting diffusion of compressible fluid |
| US20130050210A1 (en) * | 2011-08-25 | 2013-02-28 | John Michopoulos | Algorithm and a method for characterizing surfaces with fractal nature |
| US20140336953A1 (en) * | 2013-05-13 | 2014-11-13 | National Research Council Of Canada | Method to quantify emission rates in atmospheric plumes |
| JP2015078916A (en) * | 2013-10-17 | 2015-04-23 | 日本電信電話株式会社 | Air current estimation method and device therefor |
| JP2016033338A (en) * | 2014-07-31 | 2016-03-10 | 株式会社ケーヒン | Centrifugal blower |
| CN106052068A (en) * | 2016-06-21 | 2016-10-26 | 沈阳建筑大学 | Jet flow speed reduction dual-effect blind blade air port |
| CN106248345A (en) * | 2016-10-20 | 2016-12-21 | 河南理工大学 | A kind of pipeline flow field swirl intensity measuring device and measuring method thereof |
| CN205815591U (en) * | 2016-07-13 | 2016-12-21 | 河北建筑工程学院 | A kind of atomizing wind-force mixing machine |
| CN106991393A (en) * | 2017-03-30 | 2017-07-28 | 上海电机学院 | Emitter Fingerprint feature extracting method based on Multifractal Dimension |
| CN107084829A (en) * | 2017-06-12 | 2017-08-22 | 西南交通大学 | A kind of atmospheric boundary layer wind tunnel |
| CN107832562A (en) * | 2017-11-29 | 2018-03-23 | 厦门大学 | The emulation mode and analogue system of a kind of air pollution diffusion |
-
2018
- 2018-06-19 CN CN201810631048.0A patent/CN109063236B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1174968A (en) * | 1996-08-23 | 1998-03-04 | 三菱电机株式会社 | Indoor unit of air condictioner and wind direction control method |
| JP2001290799A (en) * | 2000-04-10 | 2001-10-19 | Nippon Steel Corp | Stability evaluation system, control system, stability evaluating method, control method, and recording medium |
| JP2002243252A (en) * | 2001-02-21 | 2002-08-28 | Suzuki Motor Corp | Blow molding duct structure for air conditioning, and its manufacturing method |
| CN101108687A (en) * | 2006-07-19 | 2008-01-23 | 乐金电子(天津)电器有限公司 | Package structure of opening imbedding type indoor set of air-conditioner |
| JP2008298352A (en) * | 2007-05-31 | 2008-12-11 | Hitachi Zosen Corp | Control method and control device of combustion air in waste incineration facility |
| US8095583B1 (en) * | 2007-06-04 | 2012-01-10 | Everest Michael T | Chaotic and fractal field line calculations using decomposition and self winding |
| JP2012177625A (en) * | 2011-02-25 | 2012-09-13 | Honda Motor Co Ltd | Device and method for predicting diffusion of compressible fluid |
| US20130050210A1 (en) * | 2011-08-25 | 2013-02-28 | John Michopoulos | Algorithm and a method for characterizing surfaces with fractal nature |
| CN102437984A (en) * | 2011-11-07 | 2012-05-02 | 哈尔滨工程大学 | Modulation signal identification method based on complexity characteristic under low signal-to-noise ratio condition |
| US20140336953A1 (en) * | 2013-05-13 | 2014-11-13 | National Research Council Of Canada | Method to quantify emission rates in atmospheric plumes |
| JP2015078916A (en) * | 2013-10-17 | 2015-04-23 | 日本電信電話株式会社 | Air current estimation method and device therefor |
| JP2016033338A (en) * | 2014-07-31 | 2016-03-10 | 株式会社ケーヒン | Centrifugal blower |
| CN106052068A (en) * | 2016-06-21 | 2016-10-26 | 沈阳建筑大学 | Jet flow speed reduction dual-effect blind blade air port |
| CN205815591U (en) * | 2016-07-13 | 2016-12-21 | 河北建筑工程学院 | A kind of atomizing wind-force mixing machine |
| CN106248345A (en) * | 2016-10-20 | 2016-12-21 | 河南理工大学 | A kind of pipeline flow field swirl intensity measuring device and measuring method thereof |
| CN106991393A (en) * | 2017-03-30 | 2017-07-28 | 上海电机学院 | Emitter Fingerprint feature extracting method based on Multifractal Dimension |
| CN107084829A (en) * | 2017-06-12 | 2017-08-22 | 西南交通大学 | A kind of atmospheric boundary layer wind tunnel |
| CN107832562A (en) * | 2017-11-29 | 2018-03-23 | 厦门大学 | The emulation mode and analogue system of a kind of air pollution diffusion |
Non-Patent Citations (4)
| Title |
|---|
| CHRISTOPHER M. SORENSEN: "《Observation of Soot Superaggregates with a Fractal》", 《APS MEETING ABSTRACTS》 * |
| GUOSHAO SU: "《True‑Triaxial Experimental Study of the Evolutionary Features》", 《ORIGINAL PAPER》 * |
| 王倩: "《空调系统送风湍流分形维数的研究》", 《山西建筑》 * |
| 鲜沐希: "《某空调办公室不同气流组织形式的模拟分析》", 《河北建筑工程学院学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112765745A (en) * | 2021-01-18 | 2021-05-07 | 河北建筑工程学院 | Method for calculating current air supply opening diameter considering turbulence intensity influence |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109063236B (en) | 2023-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100538307C (en) | A kind of wind tunnel calibration method for large flow gas pipeline averaging velocity tube flowmeter | |
| CN103643997B (en) | A kind of computational methods of gas emission of little wind speed driving face | |
| CN105590538B (en) | A kind of gas flow measurement experimental provision | |
| CN208567996U (en) | A kind of pipe segment structure for ultrasonic wave gas meter | |
| CN105844038B (en) | A kind of highway polymorphic type traffic detector Combinatorial Optimization distribution method | |
| CN203083805U (en) | Near-wall hot-wire probe capable of measuring backflow | |
| CN205958053U (en) | Intelligence electronic counting type diaphragm type gas table | |
| CN110489875A (en) | A kind of air-conditioner air outlet layout design method | |
| CN109063236A (en) | A method of air conditioner air outlet angle of flare is calculated using fractal dimension | |
| CN104596769A (en) | Real thrust measuring and calculating method for test run of aero-engine on indoor test bed | |
| CN107631894A (en) | Performance parameter collection measuring point laying and method of testing in the tower of high position collection water cooling tower | |
| CN104792372B (en) | wind measuring method for complex flow field roadway | |
| CN206563411U (en) | Air quantity is monitored and the integrated air quantity variable end device of regulation | |
| CN106124136B (en) | A kind of sintering ring cold machine trolley air leak rate of air curtain on-line testing method | |
| CN105444978B (en) | A kind of automotive front end air inlet weight testing method and system | |
| CN104089750B (en) | A kind of top combustion stove flow field simulation device and analogy method thereof | |
| CN102680037B (en) | Air quantity differential pressure calibration method applied to liquid cooling type frame | |
| CN203980573U (en) | A kind of indoor temperature and humidity checkout gear | |
| CN108318090B (en) | Flowmeter suitable for large-caliber pipeline flow measurement | |
| Sauter et al. | Towards distributed enthalpy measurement in large-scale air conditioning systems | |
| CN108870646A (en) | Energy consumption of building diagnostic system and application method based on temperature sensor parameter | |
| CN200972433Y (en) | Temp. humidity sampler with honeycomb piece | |
| CN202267566U (en) | Novel vacuum measuring gauge pipe | |
| CN105466510B (en) | Orifice metre with linear resistance adjuster | |
| CN109695587A (en) | A kind of blower efficiency on-line evaluation method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |