KR101283878B1 - Efficiency enhancement equipment for solar photovoltaic power facilities using two phase flow - Google Patents

Efficiency enhancement equipment for solar photovoltaic power facilities using two phase flow Download PDF

Info

Publication number
KR101283878B1
KR101283878B1 KR1020110077672A KR20110077672A KR101283878B1 KR 101283878 B1 KR101283878 B1 KR 101283878B1 KR 1020110077672 A KR1020110077672 A KR 1020110077672A KR 20110077672 A KR20110077672 A KR 20110077672A KR 101283878 B1 KR101283878 B1 KR 101283878B1
Authority
KR
South Korea
Prior art keywords
cooling water
efficiency
coolant
power generation
solar
Prior art date
Application number
KR1020110077672A
Other languages
Korean (ko)
Other versions
KR20130015598A (en
Inventor
유상필
정성대
Original Assignee
(주)하이레벤
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by (주)하이레벤 filed Critical (주)하이레벤
Priority to KR1020110077672A priority Critical patent/KR101283878B1/en
Priority to PCT/KR2012/005708 priority patent/WO2013019005A2/en
Publication of KR20130015598A publication Critical patent/KR20130015598A/en
Application granted granted Critical
Publication of KR101283878B1 publication Critical patent/KR101283878B1/en

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Landscapes

  • Photovoltaic Devices (AREA)

Abstract

The present invention relates to a facility for improving efficiency of photovoltaic power generation facilities. The efficiency improvement equipment of the photovoltaic power generation equipment according to the present invention, the photovoltaic power generation equipment that maintains or improves the efficiency by spraying cooling water to the photovoltaic power generation equipment comprising a photovoltaic module for collecting electricity to generate electricity In the efficiency improvement apparatus of the storage tank for storing the cooling water: Cooling water injection means for spraying the cooling water to the solar module; And a pump for pumping the cooling water stored in the storage tank and supplying the cooling water to the cooling water injection means through a cooling water supply pipe, wherein the cooling water injection means includes a venturi tube generating negative pressure therein to introduce external air. do.
According to the above-described efficiency improving apparatus of the solar power plant according to the present invention, the outside air is injected with the coolant using a venturi tube to improve the cooling and cleaning performance of the solar module through two phase flow. Can reduce the amount of cooling water used.

Description

EFFICIENCY ENHANCEMENT EQUIPMENT FOR SOLAR PHOTOVOLTAIC POWER FACILITIES USING TWO PHASE FLOW}

The present invention relates to a facility for improving efficiency of a photovoltaic power generation facility, and more particularly, to improve the cooling and cleaning performance of a photovoltaic module and to reduce the amount of cooling water by allowing external air to be injected and sprayed with cooling water. The present invention relates to a facility for improving efficiency of photovoltaic facilities.

Generally, the method of using solar energy is divided into a method using solar heat and a method using sunlight. The method of using solar heat is a method of heating and generating electricity by using water heated by the sun, and a method of using sunlight is a method of generating electricity by using sunlight, It is called solar power generation.

Among the above-mentioned methods, photovoltaic power generation is a photovoltaic effect in which a photovoltaic panel having n-type doping on a silicon crystal and pn-junction is irradiated with sunlight to generate an electromotive force due to the photovoltaic energy, To generate electricity.

For this purpose, a solar cell for collecting sunlight, a photovoltaic module as an aggregate of solar cells, and a solar array for uniformly arranging solar cells are required.

For example, when light is incident on the solar module from the outside, electrons in the conduction band of the p-type semiconductor are excited to the valence band by the incident light energy. One electron-hole pair (EHP) is formed inside the p-type semiconductor, and electrons in the electron-hole pair generated are transferred to the n-type semiconductor by an electric field existing between the pn junctions. It passes over and supplies current to the outside.

Unlike existing energy sources such as fossil raw materials, sunlight is a clean energy source that does not have the danger of global warming, such as greenhouse gas emissions, noise, environmental destruction, etc., and there is no fear of depletion. Unlike other types of wind and seawater, solar power generation facilities are free from installation and maintenance costs.

However, in the case of the most widely used silicon solar cell, when the temperature of the photovoltaic module rises, output decrease of 0.5% per 1 ° C occurs. According to these characteristics, the output of solar power peaks in spring and autumn, not in the summer when the sun is the longest. This increase in temperature is a major cause of lowering the power generation efficiency of photovoltaic power generation.

In addition, such a solar module has disadvantages that dust can be easily accumulated on the solar panel due to weather phenomenon such as yellow dust and bad weather. When dirt accumulates on the solar module, the solar module's light absorption rate is significantly lowered, and therefore the power generation efficiency may also be lowered.

In addition, when rain or snow falls on the solar panel in winter, the power generation efficiency may decrease. In order to prevent such deterioration of power generation efficiency due to dirt, snow, and rain, the efficiency improvement equipment (maintenance equipment) of photovoltaic power generation facilities is used.

In order to improve the efficiency of solar power generation facilities, the cooling module which cools the temperature of the solar module and the cleaning and snow removal of the dirt, snow, rain etc. accumulated on the solar panel, It functions to maintain the solar power generation facilities.

Such efficiency improvement equipment of photovoltaic power generation equipment uses enormous amounts of water (functional water, cooling water, snow removal, etc., but may be collectively referred to as cooling water) for cooling and cleaning solar modules. . Depending on the location, groundwater, tap water, and river water are used as cooling water. In many areas, it is difficult to supply sufficient cooling water, and the electricity used for supplying and spraying the cooling water also reduces the efficiency of the photovoltaic plant as a whole. . Therefore, efficient use of cooling water is one of the most important factors in the design of the device for improving the efficiency of photovoltaic power generation facilities.

The present invention is to solve this problem, by allowing the external air to be injected with the coolant in the cooling water injection means to improve the cooling and cleaning performance of the photovoltaic module by two phase flow and to reduce the amount of cooling water used It is an object of the present invention to provide a facility for improving efficiency of photovoltaic power generation facilities.

In order to achieve the above object, the present invention, by increasing the efficiency of the photovoltaic power generation facilities to maintain or improve the efficiency by spraying the cooling water to the photovoltaic power generation facilities comprising a solar module for collecting electricity to generate electricity An apparatus comprising: a storage tank for storing cooling water: cooling water spraying means for spraying cooling water on the solar module; And a pump for pumping the cooling water stored in the storage tank and supplying the cooling water to the cooling water injection means through a cooling water supply pipe, wherein the cooling water injection means includes a venturi tube generating negative pressure therein to introduce external air. It provides a facility for improving efficiency of solar power generation facilities.

The venturi tube may include a cooling water moving path through which the cooling water moves, and the cooling water moving path may include an inlet part through which the coolant is introduced and an outlet part which is narrowed and then widened again in the inlet part.

The venturi tube may have an air inlet hole through which external air is introduced, and the air inlet hole may communicate with an outlet of the coolant movement path.

The venturi tube is an inner tube formed with the cooling water movement path and the air inlet hole; And coupled to the inner tube to surround the inner tube from the outside, it may include an appearance that is coupled with the injection cap is formed with an injection hole for cooling water is injected to the outside.

The inner tube may include a fastening part inserted and fastened to a side into which the coolant is introduced, and the fastening part may have the inlet part.

The inlet portion formed in the fastening portion may have a narrower inner diameter than the outlet portion, and may include a transmission portion for delivering cooling water to the outlet portion.

The exterior is formed with a hole through which the outside air is introduced, the air introduced through the hole may be transmitted to the cooling water movement path through the air inlet hole.

A space part communicating with the hole and the air inlet hole may be formed between the inner tube and the outer tube.

The efficiency improving apparatus of the solar power generation facility may further include a valve for controlling the cooling water injection of the cooling water injection means by opening and closing the cooling water supply pipe.

The efficiency improving apparatus of the solar power generation facility may further include a control unit controlling the driving of the pump and the opening and closing of the valve to control the cooling water injection of the cooling water injection means.

The control unit may cause the cooling water spraying unit to spray cooling water for a set driving time.

The control unit may cause the coolant spray means to spray coolant according to the temperature of the solar module.

The control unit may cause the coolant spraying means to spray coolant according to the coolant storage amount of the storage tank.

According to the above-described efficiency improving apparatus of the solar power plant according to the present invention, the outside air is injected with the coolant using a venturi tube to improve the cooling and cleaning performance of the solar module through two phase flow. Can reduce the amount of cooling water used.

1 is a view schematically showing a configuration of an efficiency improving apparatus of a solar power plant according to an embodiment of the present invention.
2 is a perspective view showing a venturi tube according to an embodiment of the present invention.
3 is an exploded view showing a venturi tube according to an embodiment of the present invention.
Figure 4 is a cross-sectional view showing a venturi tube according to an embodiment of the present invention.
5 is a cross-sectional view showing a spray cap according to an embodiment of the present invention.
6 is a view for explaining the principle that the outside air flows through the venturi tube.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It is to be understood that the terminology used herein is for the purpose of description and should not be interpreted as limiting the scope of the present invention.

The embodiments described in the present specification and the configurations shown in the drawings are preferred embodiments of the present invention and are not intended to represent all of the technical ideas of the present invention and thus various equivalents and modifications Can be.

1 is a view schematically showing a configuration of an efficiency improving apparatus of a solar power plant according to an embodiment of the present invention.

Referring to FIG. 1, solar modules 7 for concentrating sunlight to generate electricity are listed, and an efficiency improving facility is installed as a facility for maintaining and managing solar modules 7 by spraying cooling water. It is.

The photovoltaic module 7 is an assembly of a plurality of solar cells. When light enters the photovoltaic module 7 from the outside, the photovoltaic module 7 is housed by the light energy in which electrons of the conduction band of the p-type semiconductor are incident. The excited electrons are excited in a valence band, and the excited electrons form an electron hole pair (EHP) inside the p-type semiconductor, and the electrons in the electron-hole pair thus generated are interposed between the pn junctions. The existing electric field (electron field) is transferred to the n-type semiconductor to supply the current to the outside.

However, since the solar module 7 is installed outside to collect sunlight, it is exposed to the external environment as it is, and contaminants such as scattering dust, algae secretions, and yellow sand are attached, thereby reducing the amount of light collected, thereby reducing power generation efficiency. Done. In addition, by being continuously exposed to sunlight and heated by solar heat, the internal resistance of the photovoltaic module is increased, which is also a factor for lowering the power generation efficiency.

The present invention relates to an efficiency improving apparatus capable of maintaining and improving the efficiency of photovoltaic power generation by cooling and washing the photovoltaic module 7 using cooling water.

As shown in FIG. 1, the efficiency improving apparatus of the solar power plant according to an embodiment of the present invention includes a storage tank 1, a coolant spray means 6, a coolant supply pipe 5, a pump 25, and a valve. 20 and the control part 3 are included.

Cooling water injection means (6) is installed to correspond to each of the solar modules (7) is a means for injecting the coolant to spray the coolant to the solar module (7). When cooling water is poured into the solar module 7 or sprayed weakly, it is difficult to obtain sufficient cooling and cleaning effects. In this embodiment, the impingement jet of cooling water is sprayed on the solar module 7.

The impingement jet has excellent heat and fluid transfer effects from the fluid to the impingement surface, thereby improving the cooling and cleaning effect and reducing the generation of scale. However, in order to generate a collision jet, the speed of the coolant is 30 m / s or more and the pressure is 1.6 kg / cm 2 or more, based on the inlet of the coolant spray means 6 for injecting the coolant into the solar module 7. desirable. Here, the inlet of the coolant spray means 6 refers to the end of the coolant spray means 6 into which coolant is injected to the outside.

The cooling water supply pipe 5 serves to deliver the cooling water supplied from the storage tank 1 to the injection means 6 through the pump 25. The cooling water supply pipe 5 is preferably buried in the ground to maintain the temperature of the cooling water.

The pump 25 pumps the cooling water stored in the storage tank 1 to supply the cooling water to the cooling water injection means 6 through the cooling water supply pipe 5, and the valve 20 opens and closes the cooling water supply pipe 5 to spray the cooling water. The means 6 controls the cooling water injection.

The control part 3 is a part which controls the drive part 9 including the pump 25 and the valve 20, drives or stops the pump 25, and opens or closes the valve 20. FIG.

The manner in which the control unit 3 controls the pump 25 and the valve 20 is not particularly limited, but is preferably designed to maximize the use efficiency of the cooling water. A control method capable of improving the use efficiency of the cooling water will be described as an example.

As a first example, this is a time-based control scheme. Specifically, the control unit 3 determines whether the drive start time, and if the drive start time drive the pump 25, and opens and closes the valve 20 for a set time sequentially. The start time of the driving and the opening time of the valve 20 may be set in consideration of the region of the solar power generation facility and the characteristics of the facility.

Another example is the temperature control method. Specifically, it is determined whether the measured temperature difference between the temperature of the module 7 and the cooling water is equal to or greater than the set temperature difference between the temperature of the module 7 and the cooling water, and the measured temperature difference between the temperature of the module 7 and the cooling water is determined. If the temperature difference between the temperature of the module 7 and the cooling water is greater than or equal to the set value, the pump 25 is driven and the valve 20 is sequentially opened and closed until it is less than that. The temperature difference setting value of the temperature of the module 7 and the cooling water may be set in consideration of the region where the solar power generation facility is installed and the characteristics of the facility.

Whatever control method is selected, it is preferable to measure the pressure in the cooling water supply pipe 5 and to terminate the start of the efficiency improving equipment when the pressure is out of the predetermined pressure range. If the measured pressure exceeds the maximum value of the set pressure range, a problem such as freezing of the coolant occurs in the coolant supply pipe 5, and if the measured pressure does not reach the minimum value of the set pressure range, the coolant supply pipe Since a problem such as water leakage occurs in (5), start-up is stopped to prevent the failure of the equipment and to efficiently use the cooling water.

In addition, in consideration of the amount of cooling water stored in the storage tank 1 and the supply speed of the cooling water supplied to the storage tank 1, it is preferable to control the injection amount of the cooling water so that the cooling water is properly distributed during the driving time. In this case, the injection amount of the cooling water may be controlled to be sprayed at the same speed every hour, or may be controlled to be sprayed at different time intervals.

In addition, if it is determined that the rain sensor 43 is on or off and is raining, the operation is terminated, and it is determined whether the temperature of the module 7 is equal to or higher than the temperature of the cooling water. Can be used more efficiently.

Cooling water injection means 6 according to the present invention to increase the injection pressure of the cooling water to generate the two-phase flow by introducing the outside air into the cooling water by using the Venturi effect, for this purpose includes a venturi tube. The impingement flow, that is, the collision jet using a mixture of air and water has a much better heat transfer and momentum transfer effect than the collision jet using only the coolant. Thus, the above configuration can improve the cooling and cleaning efficiency and reduce the amount of cooling water used. have.

Figure 2 is a perspective view showing a venturi tube according to an embodiment of the present invention, Figure 3 is an exploded view showing a venturi tube according to an embodiment of the present invention, Figure 4 is a venturi tube according to an embodiment of the present invention 5 is a cross-sectional view of the injection cap fastened to the venturi tube, Figure 6 is a view for explaining the principle that the outside air flows through the venturi tube. Hereinafter, a venturi tube according to an embodiment of the present invention will be described with reference to FIGS. 2 to 6.

Venturi tube according to an embodiment of the present invention is composed of an inner tube 70 is formed with a cooling water flow path and the outer tube 60 is coupled to the inner tube 70 to surround the inner tube 70 from the outside.

The cooling water moving path is a path through which the cooling water received from the cooling water supply pipe 5 moves, and the cooling water moved through the cooling water moving path is injected to the outside through the injection hole of the cooling water injection means 6.

The cooling water moving path is composed of an inlet 75 at the side into which the coolant flows and an outlet 77 at the side at which the coolant is discharged. The inlet 75 has an inner diameter at a point connected to the outlet 77. It is formed smaller than the inner diameter of the outlet portion 77. Preferably, the inflow portion 75 has a structure that maintains a constant inner diameter while maintaining a constant inner diameter when the inner diameter becomes narrower and narrower when the inlet portion 75 is viewed based on the traveling direction of the coolant.

In order to more easily form the inlet portion 75 of the above structure, the inner tube 70 further includes a fastening portion 80 inserted and inserted into the side into which the coolant flows, and the fastening portion 80 has a cooling water traveling direction. As a reference, while maintaining a constant inner diameter, the inner diameter becomes narrower and then the inlet portion 75 having a structure for maintaining the constant inner diameter is formed. A portion connected to the outlet portion 77 while maintaining a narrow inner diameter of the inlet portion 75 is called a transfer portion 76.

The inner pipe 70 is formed with an air inlet hole 71 so that external air can flow into a portion of the cooling water movement path communicating with the outlet 77.

In the exterior 60, a hole 61 is formed to allow external air to flow therein, and the air introduced through the hole 61 is transferred to the outlet 77 of the coolant movement path through the air inlet hole 71. The space portion 63 is formed between the exterior 60 and the inner tube 70 so as to be possible.

A thread 68 is formed on the outer side of the exterior 60 to be combined with the injection cap 90 having the injection hole 91 formed therein, and the injection cap 90 is inward for screwing with the exterior 60. Thread 93 is formed.

In addition, a thread is formed on the lower outer side of the inner tube 70 and may be screwed to the cooling water supply pipe 5.

Referring to Figure 6 the process of the abnormal flow occurs in the Venturi tube as follows.

The cooling water delivered from the cooling water supply pipe 5 flows into the inlet 75 of the venturi tube and passes through the delivery unit 76 having a narrow inner diameter, and the cooling water passing through the delivery unit 76 has an outlet portion 77 having a wide inner diameter. Squirts).

At this time, the cooling water sprayed to the outlet 77 is ejected in the longitudinal direction of the outlet 77 by the ejection pressure, the negative pressure is generated in the portion connected to the air inlet hole 71 of the outlet 77.

As a result, the outside air is introduced through the hole 61 by the negative pressure generated in the outlet 77, and mixed with the coolant while being introduced into the outlet 77 through the space 63 and the air inlet hole 71. Abnormal flow occurs.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of the present invention.

Claims (13)

In the efficiency improvement equipment of the photovoltaic power generation equipment to maintain or improve the efficiency by spraying the cooling water to the photovoltaic power generation equipment comprising a photovoltaic module for collecting electricity to generate electricity,
Storage tank to store coolant:
Coolant injection means for injecting coolant into the solar module; And
A pump for pumping the coolant stored in the storage tank to supply the coolant injection means through a coolant supply pipe;
The cooling water injection means includes a venturi tube for introducing a negative pressure inside the inlet air,
The venturi tube,
An inner tube in which a coolant movement path and an air inlet hole are formed; And
It is coupled to the inner tube to surround the inner tube from the outside, and provided with a hole through which the outside air flows, and includes an appearance that is coupled to the injection cap formed with a spray hole for cooling water is injected to the outside,
The cooling water moving path includes an inlet portion through which the coolant flows and an outlet portion in which the inner diameter of the cooling water is narrowed and then widened again.
The air inlet hole is in communication with the outlet of the cooling water movement path in which the negative pressure is generated efficiency improvement equipment of the solar power plant.
delete delete delete The method of claim 1,
The inner tube includes a fastening portion inserted into a side into which the coolant is introduced,
The fastening portion is the efficiency of the solar power plant, characterized in that the inlet is formed.
The method of claim 5,
Inlet portion formed in the fastening portion, the inner diameter is narrower than the outlet portion is formed efficiency improvement equipment of the solar power generation equipment, characterized in that it comprises a transmission unit for spraying the coolant to the outlet.
The method of claim 1,
The exterior is formed with a hole through which outside air is introduced,
The air introduced through the hole is the efficiency improvement equipment of the solar power generation facility, characterized in that it is transferred to the cooling water movement path through the air inlet.
The method of claim 7, wherein
Between the inner tube and the exterior is the efficiency of the solar power plant, characterized in that the space portion is formed in communication with the air inlet hole is formed.
The method of claim 1,
Further comprising: a valve for controlling the cooling water injection of the cooling water injection means by opening and closing the cooling water supply pipe.
10. The method of claim 9,
Further comprising a control unit for controlling the driving of the pump and the opening and closing of the valve to control the cooling water injection of the cooling water injection means.
The method of claim 10,
The control unit, the efficiency improving equipment of the solar power plant, characterized in that the cooling water spraying means to spray the cooling water for a set driving time.
The method of claim 10,
The control unit, the efficiency of the solar power plant, characterized in that the cooling water spray means for spraying the cooling water in accordance with the temperature of the solar module.
The method of claim 10,
Wherein the control unit, the cooling water injection means for improving the efficiency of the photovoltaic power generation facility, characterized in that for spraying the cooling water in accordance with the amount of cooling water stored in the storage tank.
KR1020110077672A 2011-08-04 2011-08-04 Efficiency enhancement equipment for solar photovoltaic power facilities using two phase flow KR101283878B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020110077672A KR101283878B1 (en) 2011-08-04 2011-08-04 Efficiency enhancement equipment for solar photovoltaic power facilities using two phase flow
PCT/KR2012/005708 WO2013019005A2 (en) 2011-08-04 2012-07-17 Efficiency enhancing system for a photovoltaic power generating facility using a two phase flow

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020110077672A KR101283878B1 (en) 2011-08-04 2011-08-04 Efficiency enhancement equipment for solar photovoltaic power facilities using two phase flow

Publications (2)

Publication Number Publication Date
KR20130015598A KR20130015598A (en) 2013-02-14
KR101283878B1 true KR101283878B1 (en) 2013-07-08

Family

ID=47895378

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020110077672A KR101283878B1 (en) 2011-08-04 2011-08-04 Efficiency enhancement equipment for solar photovoltaic power facilities using two phase flow

Country Status (1)

Country Link
KR (1) KR101283878B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101702554B1 (en) 2015-12-24 2017-02-23 (주)하이레벤 Spraying apparatus for road snow removal using two phase flow and road snow removal system using this

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100725242B1 (en) * 2004-05-31 2007-06-04 주식회사 케이씨텍 Nozzle for Injecting Sublimable Solid Particles Entrained in Gas for Cleaning Surface and Method for Cleaning Surface using the Nozzle
KR100832673B1 (en) * 1998-09-25 2008-05-27 유.에스. 필터 웨이스트워터 그룹, 인크. Filtration system, membrane module and method for cleaning the module
KR100986706B1 (en) * 2010-03-16 2010-10-08 (주)하이레벤 Efficiency enhancement equipment for solar photovoltaic power facilities
JP2011100782A (en) * 2009-11-04 2011-05-19 Toyota Home Kk Device for cooling solar panel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100832673B1 (en) * 1998-09-25 2008-05-27 유.에스. 필터 웨이스트워터 그룹, 인크. Filtration system, membrane module and method for cleaning the module
KR100725242B1 (en) * 2004-05-31 2007-06-04 주식회사 케이씨텍 Nozzle for Injecting Sublimable Solid Particles Entrained in Gas for Cleaning Surface and Method for Cleaning Surface using the Nozzle
JP2011100782A (en) * 2009-11-04 2011-05-19 Toyota Home Kk Device for cooling solar panel
KR100986706B1 (en) * 2010-03-16 2010-10-08 (주)하이레벤 Efficiency enhancement equipment for solar photovoltaic power facilities

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101702554B1 (en) 2015-12-24 2017-02-23 (주)하이레벤 Spraying apparatus for road snow removal using two phase flow and road snow removal system using this

Also Published As

Publication number Publication date
KR20130015598A (en) 2013-02-14

Similar Documents

Publication Publication Date Title
KR100986706B1 (en) Efficiency enhancement equipment for solar photovoltaic power facilities
KR100954530B1 (en) Efficiency enhancement equipment for solar photovoltaic power facilities
KR101148020B1 (en) Cooling system of photovoltaic module for efficiency enhancement
JP5548824B2 (en) Equipment for improving the efficiency of solar power generation equipment
KR100983783B1 (en) Efficiency enhancement equipment for solar photovoltaic power facilities
KR101443040B1 (en) A turbulent flow-type cooling water nozzle of solar power module
KR102064707B1 (en) claening and cooling equipments for solar cell modules of solar power generation system
KR101038243B1 (en) Solar array caring apparatus moving on track with reciprocation
KR101381949B1 (en) cooling method and apparatus of solar module
KR101283878B1 (en) Efficiency enhancement equipment for solar photovoltaic power facilities using two phase flow
KR101326240B1 (en) Nozzle to generate the two phase flow and efficiency enhancement equipment for solar photovoltaic power facilities using the same
KR101107623B1 (en) Efficiency enhancement equipment for sun location tracking type solar photovoltaic power facilities
KR101088773B1 (en) Cooling equipment for solar photovoltaic power facilities installed in slope
KR101243176B1 (en) A cooling water nozzle of solar power module
KR101410909B1 (en) Rotary nozzle for ejecting coolwater to solar module and efficiency enhancement equipment with the same for solar photovoltaic power facilities
KR101044712B1 (en) Efficiency enhancement equipment for solar photovoltaic power facilities
KR101237903B1 (en) Efficiency enhancement equipment for solar photovoltaic power facilities
KR101282739B1 (en) Efficiency enhancement equipment for solar photovoltaic power facilities
KR101353969B1 (en) Efficiency enhancement equipment for solar photovoltaic power facilities
KR101263243B1 (en) Efficiency enhancement equipment for solar photovoltaic power facilities
KR101280262B1 (en) Efficiency enhancement equipment for solar photovoltaic power facilities
KR101148022B1 (en) System of remotely controlling efficiency enhancement equipment for solar photovoltaic power facilities
KR101151734B1 (en) Efficiency enhancement equipment for solar photovoltaic power facilities
KR101349792B1 (en) equipment cooling of photovoltaic power generation system using geothermy
KR101044713B1 (en) Efficiency enhancement equipment for solar photovoltaic power facilities by cleaning

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20160630

Year of fee payment: 4

LAPS Lapse due to unpaid annual fee