US20090107486A1 - Solar panel with a coolant vapor pressure driving system - Google Patents

Solar panel with a coolant vapor pressure driving system Download PDF

Info

Publication number
US20090107486A1
US20090107486A1 US11/972,900 US97290008A US2009107486A1 US 20090107486 A1 US20090107486 A1 US 20090107486A1 US 97290008 A US97290008 A US 97290008A US 2009107486 A1 US2009107486 A1 US 2009107486A1
Authority
US
United States
Prior art keywords
solar panel
coolant
vapor pressure
coolant vapor
driving system
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.)
Abandoned
Application number
US11/972,900
Inventor
Hsi-Hsun Tsai
Dung-Sheng JENG
Hui-Ping FENG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to LIN, JEFFERY, FENG, YEN-JUNG reassignment LIN, JEFFERY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FENG, Hui-ping, JENG, DUNG-SHENG, TSAI, HSI-HSUN
Publication of US20090107486A1 publication Critical patent/US20090107486A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
    • H01L31/0521—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F24S50/20—Arrangements for controlling solar heat collectors for tracking
    • 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
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking
    • 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

Definitions

  • This disclosure relates to a sun tracking system for a solar panel that collects and converts solar energy into electricity or heat. More specifically, this disclosure relates to a sun tracking system with a coolant vapor pressure driving system to adjust the azimuth angle of the solar panel without using a dedicated power supply.
  • FIG. 1 shows a solar panel 205 having a conventional sun tracking system.
  • the tracking system comprises four photo sensors 101 , 102 , 103 , 104 encircled by a sleeve 120 .
  • the four sensors are located in the center of the top surface of the solar panel 205 .
  • Photoelectric units 108 for collecting and converting solar energy into electricity are distributed on the top surface of the solar panel 205 .
  • the sleeve 120 has an opening for receiving the sun light. The direction and/or movement of the sun is detected through the light intensity sensed by each of the four photo sensors.
  • each of the four photo sensors is presumed to receive equal heat strength, or light intensity, from the sun.
  • the sun shifts sideways, e.g., left as shown in FIG. 1
  • the light rays below R 1 are hindered by the sleeve wall and prevented from reaching some or all of the photo sensors 101 , 102 , 103 , 104 .
  • a shadow is produced within the sleeve under R 1 , the shadow will cover wholly or partially some or all of the photo sensors, and hence, the light intensities sensed by the photo sensors are different from one another.
  • FIG. 1 shows that sensor 101 is fully covered by the shadow, and sensors 102 , 104 are partially covered by the shadow.
  • the light intensity sensed by each of the photo sensors is transferred to a control unit 12 .
  • the control unit 12 is coupled to a rotation mechanism 14 , the rotation mechanism 14 has a gear set 107 to rotate the solar panel 205 to adjust the azimuth angle according to a predetermined rule following the information received from the control unit 12 so that the solar panel 205 moves synchronically with the movement of the sun to receive a relatively optimal amount of solar energy.
  • a power supply 13 is coupled to the rotation mechanism 14 for running the gear set 107 .
  • FIG. 2 shows a block diagram of the prior art device.
  • a solar panel 205 is coupled to a gear set 107 , the gear set adjusts the azimuth angle of the solar panel 205 following instructions from a control unit 12 , a power supply 13 provides the energy needed for running the gear set 107 .
  • FIGS. 1-2 The drawback of the prior art shown in FIGS. 1-2 is that a power supply 13 for running the gear set is needed. Such a power consumption mechanism is a detrimental disadvantage to a power generating system; especially for a solar panel system which, due to such a power supply, exhibits relatively lower photo-electricity conversion efficiency.
  • FIG. 1 shows a prior art device.
  • FIG. 2 shows a block diagram of the prior art device.
  • FIG. 3 shows a first embodiment of this invention.
  • FIG. 4 shows a block diagram according to embodiments of this invention.
  • FIG. 5 shows a second embodiment of this invention.
  • Embodiments of this invention disclose a driving system using coolant vapor pressure energized by the environmental temperature and without using a dedicated power supply to adjust the azimuth angle of a solar panel.
  • the environmental temperature increases and the coolant vapor pressure increases to generate a push force.
  • the environmental temperature decreases and the coolant vapor pressure decreases, a pull force is generated through a coupled spring cylinder.
  • FIG. 3 shows a first embodiment of this invention.
  • a solar panel 205 is mounted on the top of a support 209 erected from the ground 100 .
  • a spring cylinder 206 is coupled to the solar panel 205 through a connecting rod 23 .
  • the spring cylinder 206 has an expansion chamber 21 inside, which expands against a spring 25 .
  • a piston 26 is arranged on the top end of the shaft 24 , the bottom end of the shaft 24 is fixed to a post 208 .
  • the cylinder 206 moves up and down along the shaft 24 .
  • the spring 25 is positioned between the piston 26 at the top of the shaft 24 and the bottom wall of the cylinder 206 to push the cylinder 206 downward relative to the piston 26 .
  • the expansion chamber 21 expands to push the cylinder 206 upward relative to the piston 26 when a fluid, e.g., coolant vapor, enters the expansion chamber 21 .
  • a coolant tank 207 is coupled to the expansion chamber 21 through a pipe 202 , to provide a higher vapor pressure when the environmental temperature increases, and a lower vapor pressure when the environmental temperature decreases.
  • the coolant vapor expands and enters the expansion chamber 21 when the environmental temperature increases, e.g., in the day time.
  • the coolant vapor contracts and withdraws from the expansion chamber 21 , under the pushing action of the spring cylinder 206 , going back most to the coolant tank 207 when the environmental temperature decreases, e.g., in the night time.
  • a control unit 22 controls, e.g., turns on or off, the flow of the coolant vapor between the coolant tank 207 and the expansion chamber 22 according to predetermined conditions.
  • An electric valve 203 is coupled between the pipe 202 and the expansion chamber 21 for controlling, e.g., turning on or off, the flow of the coolant vapor.
  • a pressure valve 201 is coupled as a flow regulator between the coolant tank 207 and the pipe 202 to adjust the flow pressure of the coolant vapor.
  • FIG. 4 shows a block diagram of embodiments of this invention.
  • a solar panel 205 is coupled to a spring cylinder 206 , the spring cylinder 206 is controlled by a control unit 22 .
  • the spring cylinder 206 pushes the solar panel 205 when the environmental temperature increases and the spring cylinder 206 pulls the solar panel 205 when the environmental temperature decreases.
  • the push/pull force is generated from the expansion/contraction of a coolant vapor supplied by a coolant tank 207 .
  • the spring cylinder 206 is coupled to the coolant tank 207 .
  • An electric valve 203 is coupled to the control unit 22 to follow instructions from the control unit 22 to turn on/off the flow of the coolant vapor which is regulated by the pressure valve 201 .
  • FIG. 5 shows a second embodiment of this invention.
  • the embodiment is similar to that shown in FIG. 3 , the only difference being that the spring cylinder 206 is reverse-arranged.
  • the spring cylinder 206 has a shaft 24 which is coupled to a solar panel 205 on its top.
  • a piston 26 is on the bottom end of the shaft 24 .
  • a spring 25 pushes the shaft 24 downward relative to the cylinder 206 .
  • the expansion chamber 21 is on the bottom of the spring cylinder 206 . When the expansion chamber 21 expands to push the piston 26 , the shaft 24 moves upward.
  • the push/pull forces are used to adjust the azimuth angle of the solar panel 205 .
  • the other elements operate with the same principle as described with respect to the structure of FIG. 3 .

Abstract

Coolant vapor pressure is used to generate a push force to adjust the azimuth angle of a solar panel without using a dedicated power supply.

Description

    RELATED APPLICATIONS
  • The present application is based on, and claims priority from Taiwan Application Serial Number 096140493, filed Oct. 29, 2007, the entire disclosure of which is incorporated by reference herein.
    • TECHNICAL FIELD
  • This disclosure relates to a sun tracking system for a solar panel that collects and converts solar energy into electricity or heat. More specifically, this disclosure relates to a sun tracking system with a coolant vapor pressure driving system to adjust the azimuth angle of the solar panel without using a dedicated power supply.
    • BACKGROUND FIGS. 1-2 Prior Art
  • FIG. 1 shows a solar panel 205 having a conventional sun tracking system. The tracking system comprises four photo sensors 101,102,103,104 encircled by a sleeve 120. The four sensors are located in the center of the top surface of the solar panel 205. Photoelectric units 108 for collecting and converting solar energy into electricity are distributed on the top surface of the solar panel 205. The sleeve 120 has an opening for receiving the sun light. The direction and/or movement of the sun is detected through the light intensity sensed by each of the four photo sensors.
  • When the sun is above the solar panel 105, the light rays from the sun irradiate directly onto the solar panel 105, each of the four photo sensors is presumed to receive equal heat strength, or light intensity, from the sun. However, when the sun shifts sideways, e.g., left as shown in FIG. 1, the light rays below R1 are hindered by the sleeve wall and prevented from reaching some or all of the photo sensors 101,102,103,104. A shadow is produced within the sleeve under R1, the shadow will cover wholly or partially some or all of the photo sensors, and hence, the light intensities sensed by the photo sensors are different from one another. FIG. 1 shows that sensor 101 is fully covered by the shadow, and sensors 102, 104 are partially covered by the shadow.
  • The light intensity sensed by each of the photo sensors is transferred to a control unit 12. The control unit 12 is coupled to a rotation mechanism 14, the rotation mechanism 14 has a gear set 107 to rotate the solar panel 205 to adjust the azimuth angle according to a predetermined rule following the information received from the control unit 12 so that the solar panel 205 moves synchronically with the movement of the sun to receive a relatively optimal amount of solar energy. A power supply 13 is coupled to the rotation mechanism 14 for running the gear set 107.
  • FIG. 2 shows a block diagram of the prior art device.
  • A solar panel 205 is coupled to a gear set 107, the gear set adjusts the azimuth angle of the solar panel 205 following instructions from a control unit 12, a power supply 13 provides the energy needed for running the gear set 107.
  • The drawback of the prior art shown in FIGS. 1-2 is that a power supply 13 for running the gear set is needed. Such a power consumption mechanism is a detrimental disadvantage to a power generating system; especially for a solar panel system which, due to such a power supply, exhibits relatively lower photo-electricity conversion efficiency.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 shows a prior art device.
  • FIG. 2 shows a block diagram of the prior art device.
  • FIG. 3 shows a first embodiment of this invention.
  • FIG. 4 shows a block diagram according to embodiments of this invention.
  • FIG. 5 shows a second embodiment of this invention.
    •  DETAILED DESCRIPTION
  • Embodiments of this invention disclose a driving system using coolant vapor pressure energized by the environmental temperature and without using a dedicated power supply to adjust the azimuth angle of a solar panel. In the day time, the environmental temperature increases and the coolant vapor pressure increases to generate a push force. In the night time, the environmental temperature decreases and the coolant vapor pressure decreases, a pull force is generated through a coupled spring cylinder.
  • FIG. 3 shows a first embodiment of this invention.
  • A solar panel 205 is mounted on the top of a support 209 erected from the ground 100. A spring cylinder 206 is coupled to the solar panel 205 through a connecting rod 23. The spring cylinder 206 has an expansion chamber 21 inside, which expands against a spring 25. A piston 26 is arranged on the top end of the shaft 24, the bottom end of the shaft 24 is fixed to a post 208. The cylinder 206 moves up and down along the shaft 24. The spring 25 is positioned between the piston 26 at the top of the shaft 24 and the bottom wall of the cylinder 206 to push the cylinder 206 downward relative to the piston 26. The expansion chamber 21 expands to push the cylinder 206 upward relative to the piston 26 when a fluid, e.g., coolant vapor, enters the expansion chamber 21.
  • A coolant tank 207 is coupled to the expansion chamber 21 through a pipe 202, to provide a higher vapor pressure when the environmental temperature increases, and a lower vapor pressure when the environmental temperature decreases. The coolant vapor expands and enters the expansion chamber 21 when the environmental temperature increases, e.g., in the day time. The coolant vapor contracts and withdraws from the expansion chamber 21, under the pushing action of the spring cylinder 206, going back most to the coolant tank 207 when the environmental temperature decreases, e.g., in the night time. A control unit 22 controls, e.g., turns on or off, the flow of the coolant vapor between the coolant tank 207 and the expansion chamber 22 according to predetermined conditions.
  • An electric valve 203 is coupled between the pipe 202 and the expansion chamber 21 for controlling, e.g., turning on or off, the flow of the coolant vapor. A pressure valve 201 is coupled as a flow regulator between the coolant tank 207 and the pipe 202 to adjust the flow pressure of the coolant vapor.
  • FIG. 4 shows a block diagram of embodiments of this invention.
  • A solar panel 205 is coupled to a spring cylinder 206, the spring cylinder 206 is controlled by a control unit 22. The spring cylinder 206 pushes the solar panel 205 when the environmental temperature increases and the spring cylinder 206 pulls the solar panel 205 when the environmental temperature decreases. The push/pull force is generated from the expansion/contraction of a coolant vapor supplied by a coolant tank 207. The spring cylinder 206 is coupled to the coolant tank 207. An electric valve 203 is coupled to the control unit 22 to follow instructions from the control unit 22 to turn on/off the flow of the coolant vapor which is regulated by the pressure valve 201.
  • FIG. 5 shows a second embodiment of this invention.
  • The embodiment is similar to that shown in FIG. 3, the only difference being that the spring cylinder 206 is reverse-arranged. Referring to FIG. 5, the spring cylinder 206 has a shaft 24 which is coupled to a solar panel 205 on its top. A piston 26 is on the bottom end of the shaft 24. A spring 25 pushes the shaft 24 downward relative to the cylinder 206. The expansion chamber 21 is on the bottom of the spring cylinder 206. When the expansion chamber 21 expands to push the piston 26, the shaft 24 moves upward. The push/pull forces are used to adjust the azimuth angle of the solar panel 205. The other elements operate with the same principle as described with respect to the structure of FIG. 3.
  • While several embodiments have been described by way of example, it will be apparent to those skilled in the art that various modifications may be made in the embodiments without departing from the spirit of the present invention. Such modifications are all within the scope of the present invention, as defined by the appended claims.

Claims (5)

1. A solar panel with a coolant vapor pressure driving system, comprising:
a spring cylinder, coupled to move the solar panel and having an expansion chamber;
a coolant tank, coupled to the expansion chamber for giving a higher vapor pressure when the temperature increases, and for giving a lower vapor pressure when the temperature decreases; and.
a control unit, coupled to the coolant tank, for controlling the flow of the coolant vapor between the coolant tank and the expansion chamber according to predetermined conditions.
2. A solar panel with a coolant vapor pressure driving system as claimed in claim 1, further comprising: an electric valve, coupled between the coolant tank and the expansion chamber for turning on/off the flow of the coolant vapor.
3. A solar panel with a coolant vapor pressure driving system as claimed in claim 1, further comprising: a pressure valve, coupled between the coolant tank and the expansion chamber as a flow regulator for the flow of the coolant vapor.
4. A solar panel with a coolant vapor pressure driving system as claimed in claim 1, wherein said flow of the coolant vapor is to let the vapor enter the expansion chamber.
5. A solar panel with a coolant vapor pressure driving system as claimed in claim 1, wherein said flow of the coolant vapor is to let the vapor go back to the coolant tank.
US11/972,900 2007-10-29 2008-01-11 Solar panel with a coolant vapor pressure driving system Abandoned US20090107486A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW096140493A TWI323772B (en) 2007-10-29 2007-10-29 A solar panel with coolant vapor pressure system
TW096140493 2007-10-29

Publications (1)

Publication Number Publication Date
US20090107486A1 true US20090107486A1 (en) 2009-04-30

Family

ID=40581255

Family Applications (1)

Application Number Title Priority Date Filing Date
US11/972,900 Abandoned US20090107486A1 (en) 2007-10-29 2008-01-11 Solar panel with a coolant vapor pressure driving system

Country Status (2)

Country Link
US (1) US20090107486A1 (en)
TW (1) TWI323772B (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100275903A1 (en) * 2008-01-07 2010-11-04 Atomic Energy Council - Institute Of Nuclear Energy Research Solar tracker
GR1007290B (en) * 2009-06-25 2011-06-01 Παναγιωτης Γεωργιου Παπαγιαννακης Adjustable stand for photovoltaic cround/floor collectors with single support post
CN102519157A (en) * 2011-12-04 2012-06-27 苏州方暨圆节能科技有限公司 Follow-up solar water heater
US20120205176A1 (en) * 2009-10-30 2012-08-16 Commissariat A L'energie Atomique Et Aux Energies Alternatives Vehicle forming a self-balancing human transporter with an integrated photovoltaic module
US20120279487A1 (en) * 2010-01-04 2012-11-08 Commissariat A L'energie Atomique Et Aux Energies Alternatives Method for automatic orientation of a solar panel device and device operating according to said method
JP2015059676A (en) * 2013-09-17 2015-03-30 哲 湯田 Sun tracking power generator and water heater
KR101526170B1 (en) * 2013-09-23 2015-06-05 (주)범진산업 Rotator for solar cells
KR101762921B1 (en) 2015-10-23 2017-07-31 (재)한국나노기술원 Concentration photovoltaic method and system
US9784476B2 (en) 2013-05-30 2017-10-10 Howard Stein Portable solar tracker

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8748732B2 (en) 2011-07-11 2014-06-10 Topper Sun Energy Technology Co., Ltd. Solar generator apparatus with suspending supports

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4226502A (en) * 1978-07-24 1980-10-07 Thomas Gunzler Self-contained solar tracking device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4226502A (en) * 1978-07-24 1980-10-07 Thomas Gunzler Self-contained solar tracking device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100275903A1 (en) * 2008-01-07 2010-11-04 Atomic Energy Council - Institute Of Nuclear Energy Research Solar tracker
US7910870B2 (en) * 2008-01-07 2011-03-22 Atomic Energy Council - Institute Of Nuclear Energy Research Solar tracker
GR1007290B (en) * 2009-06-25 2011-06-01 Παναγιωτης Γεωργιου Παπαγιαννακης Adjustable stand for photovoltaic cround/floor collectors with single support post
US20120205176A1 (en) * 2009-10-30 2012-08-16 Commissariat A L'energie Atomique Et Aux Energies Alternatives Vehicle forming a self-balancing human transporter with an integrated photovoltaic module
US8978791B2 (en) * 2009-10-30 2015-03-17 Commissariat à l'énergie atomique et aux énergies alternatives Vehicle forming a self-balancing human transporter with an integrated photovoltaic module
US20120279487A1 (en) * 2010-01-04 2012-11-08 Commissariat A L'energie Atomique Et Aux Energies Alternatives Method for automatic orientation of a solar panel device and device operating according to said method
CN102519157A (en) * 2011-12-04 2012-06-27 苏州方暨圆节能科技有限公司 Follow-up solar water heater
US9784476B2 (en) 2013-05-30 2017-10-10 Howard Stein Portable solar tracker
JP2015059676A (en) * 2013-09-17 2015-03-30 哲 湯田 Sun tracking power generator and water heater
KR101526170B1 (en) * 2013-09-23 2015-06-05 (주)범진산업 Rotator for solar cells
KR101762921B1 (en) 2015-10-23 2017-07-31 (재)한국나노기술원 Concentration photovoltaic method and system

Also Published As

Publication number Publication date
TWI323772B (en) 2010-04-21
TW200918836A (en) 2009-05-01

Similar Documents

Publication Publication Date Title
US20090107486A1 (en) Solar panel with a coolant vapor pressure driving system
US7964981B2 (en) Solar and wind energy converter
US8104465B2 (en) Small-scale, concentrating, solar CHP system
US8110786B2 (en) Multi-element concentrator system
US8763602B2 (en) Device, in particular a heliostat or photovoltaic device
CN103380332B (en) Robot sunshine tracking equipment
US20090260619A1 (en) Autonomous heliostat for solar power plant
CA2849537C (en) Solar tracker
WO2016051233A1 (en) System and method for harvesting solar thermal energy
US20100206302A1 (en) Rotational Trough Reflector Array For Solar-Electricity Generation
US9312805B2 (en) Systems and methods for concentrated solar photovoltaic power generation with controllable radiation attenuation
US20120174966A1 (en) Concentrating tracking solar energy collector
US20160186439A1 (en) Controller for skylight energy management system
Psomopoulos Solar energy: Harvesting the sun’s energy for a sustainable future
EP0769121B1 (en) Improved solar collector
KR101379445B1 (en) Solr lightand heat hybrid collecting System having a solar tracker
EP2479803A2 (en) Sunlight-collecting apparatus
US7985920B2 (en) Solar concentrator with self-tracking receiver
CN106461273A (en) Apparatus and method for heliostat support
Marinescu et al. Control optimizing algorithm for soft sun-trackers
Titirsha et al. Introducing dual axis solar tracker with reflector to increase optimal electricity generation in Bangladesh
KR20100008996A (en) Solar compound parabolic conentrator
RU2801405C1 (en) Solar power plant
US20150207454A1 (en) Photovoltaic Collector System Utilizing Inflatable Tubing
Onah A solar tracking system with mirror booster: clean energy system

Legal Events

Date Code Title Description
AS Assignment

Owner name: LIN, JEFFERY, TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TSAI, HSI-HSUN;JENG, DUNG-SHENG;FENG, HUI-PING;REEL/FRAME:020355/0170

Effective date: 20071220

Owner name: FENG, YEN-JUNG, TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TSAI, HSI-HSUN;JENG, DUNG-SHENG;FENG, HUI-PING;REEL/FRAME:020355/0170

Effective date: 20071220

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION