US20090308378A1 - Solar Heat Powered System comprising at least one solar collector - Google Patents

Solar Heat Powered System comprising at least one solar collector Download PDF

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Publication number
US20090308378A1
US20090308378A1 US12/387,987 US38798709A US2009308378A1 US 20090308378 A1 US20090308378 A1 US 20090308378A1 US 38798709 A US38798709 A US 38798709A US 2009308378 A1 US2009308378 A1 US 2009308378A1
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United States
Prior art keywords
solar
heat
powered system
heat exchangers
partial
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
US12/387,987
Inventor
Joerg Vehmeier
Martin Karl Heinke
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.)
Paw GmbH and Co KG
Original Assignee
Paw GmbH and Co KG
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 Paw GmbH and Co KG filed Critical Paw GmbH and Co KG
Assigned to PAW GMBH & CO. KG reassignment PAW GMBH & CO. KG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Heinke, Martin Karl, VEHMEIER, JOERG
Publication of US20090308378A1 publication Critical patent/US20090308378A1/en
Abandoned legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
    • F24D11/003—Central heating systems using heat accumulated in storage masses water heating system combined with solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1042—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses solar energy
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal

Definitions

  • the invention relates to a solar heat powered system comprising at least one solar collector, to which lines for a solar fluid are connected
  • Solar heat powered systems are used to heat secondary heat carriers (heating circuit water, potable water, cooling brine).
  • a solar fluid is heated for this purpose in thermal solar collectors.
  • the heated solar fluid is brought into operative heat-transferring connection with the secondary heat carrier via lines in heat exchangers so as to heat the secondary heat carrier.
  • the invention is based on the object of specifying a solar heat powered system of the afore-mentioned species, which can also be used for expanded solar collector fields using justifiable efforts and costs.
  • the feed line for the solar fluid leading away from the solar collector is divided into at least two partial lines in sections and in that at least one heat exchanger is arranged in each partial line.
  • the solar heat powered system With the solar heat powered system according to the invention, provision is not made for a heat exchanger, which would have to be embodied in each case to be larger in response to a larger volume of solar fluid, but a division into a plurality of heat exchangers takes place.
  • the plurality of heat exchangers is arranged in partial lines, which are different from one another and which are designed like a cascade.
  • the partial lines run parallel to one another so that the solar fluid is in each case only guided through one heat exchanger.
  • the heat exchangers can thereby be arranged within an accumulator or can also be arranged outside of an accumulator.
  • a secondary heat carrier is then supplied to said heat exchangers from the accumulator via corresponding lines.
  • the plurality of heat exchangers can each be embodied to be more compact.
  • Standard heat exchangers which are arranged in a modular manner depending on the requirements, can be used. Standard heat exchangers are available quickly; advantageously, a respective special custom production for a certain solar heat powered system is not necessary. The same parts provide for a minimized storage.
  • the solar heat powered system according to the invention can be used for a potable water network, a heating water network or for a combination of these two networks.
  • an inexpensive mass storage can then be used for the respective secondary heat carrier.
  • Pumps comprising alert outlets are inserted into the lines for the solar fluid according to a development of the invention, preferably in the area of the transfer stations.
  • High-efficiency pumps are preferably used. If these pumps have an alert outlet, they can display an occurring malfunction.
  • a pump is regularly used for the solar fluid and a pump is used for the secondary heat carrier in response to an external heat exchanger. Both pumps preferably encompass alert outlets so that the functionally reliable operation of the solar heat powered system can also be monitored remotely.
  • the heat exchangers are arranged in a vertical orientation of their media flow ducts. This arrangement has proven to be advantageous for an optimal transfer of the heat.
  • FIG. 1 shows a diagrammatic perspective view of a solar heat powered system according to the invention
  • FIG. 2 shows a side view of components of the solar heat powered system according to FIG. 1 .
  • the solar heat powered system in FIG. 1 encompasses solar collectors 1 , which are arranged on a roof, for example.
  • a solar fluid is guided to heat transfer stations 3 via lines 2 .
  • a heat exchanger 4 is arranged in each heat transfer station 3 .
  • the solar fluid is conveyed by a pump 5 ; it flows through the heat exchanger 4 and back again to the solar collector 1 via the line 2 .
  • the solar heat powered system furthermore encompasses an accumulator 6 .
  • a secondary heat carrier is guided out of this accumulator 6 to the heat transfer stations 3 via lines 7 and is likewise guided through the heat exchanger 4 by means of pumps 8 .
  • the line 2 from the solar collectors 1 to the heat exchangers 4 is divided into two partial lines 9 .
  • Both heat exchangers 4 are arranged parallel to one another; standardized heat transfer stations 3 can be used thereby.
  • the line 7 for the industrial water is necessarily also divided into partial lines 10 .
  • the heat transfer stations 3 are once again illustrated in FIG. 2 .
  • the piping within the heat transfer stations 3 can be seen; the solar fluid of the solar heat powered system is introduced into the heat exchanger 4 at the primary side from below via the partial lines 2 , while the secondary heat carrier is in each case introduced into the heat exchanger 4 at the secondary side via the partial lines 7 .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Central Heating Systems (AREA)
  • Photovoltaic Devices (AREA)

Abstract

A solar heat powered system has at least one solar collector and a feed line for solar fluid leading away from the solar collector. The feed line is divided into at least two partial lines in sections. There is at least one heat exchanger arranged in each partial line. By dividing the feed line for the solar fluid, the plurality of heat exchangers can each be embodied to be more compact.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • Applicants claim priority under 35 U.S.C. §119 of German Application No. 20 2008 007 796.6 filed Jun. 11, 2008.
    • BACKGROUND OF THE INVENTION
  • The invention relates to a solar heat powered system comprising at least one solar collector, to which lines for a solar fluid are connected
  • Solar heat powered systems are used to heat secondary heat carriers (heating circuit water, potable water, cooling brine). A solar fluid is heated for this purpose in thermal solar collectors. The heated solar fluid is brought into operative heat-transferring connection with the secondary heat carrier via lines in heat exchangers so as to heat the secondary heat carrier.
  • Due to the increasing costs for primary energy, solar collector fields are designed to be increasingly larger. Solar collector surfaces leading to a large volume of solar fluid, which is heated in midsummer, is available in particular for industrial users. To be able to process these large volumes of solar fluid, accordingly large heat exchangers are required within or outside of accordingly dimensioned accumulators. The size can lead to space problems. Components, such as pumps and the like, which are required, in the heat exchangers or in the area of accumulators, must furthermore likewise be embodied to be increasingly larger.
    • SUMMARY OF THE INVENTION
  • The invention is based on the object of specifying a solar heat powered system of the afore-mentioned species, which can also be used for expanded solar collector fields using justifiable efforts and costs.
  • This object is solved according to the invention in that the feed line for the solar fluid leading away from the solar collector is divided into at least two partial lines in sections and in that at least one heat exchanger is arranged in each partial line.
  • With the solar heat powered system according to the invention, provision is not made for a heat exchanger, which would have to be embodied in each case to be larger in response to a larger volume of solar fluid, but a division into a plurality of heat exchangers takes place. The plurality of heat exchangers is arranged in partial lines, which are different from one another and which are designed like a cascade. The partial lines run parallel to one another so that the solar fluid is in each case only guided through one heat exchanger. The heat exchangers can thereby be arranged within an accumulator or can also be arranged outside of an accumulator. A secondary heat carrier is then supplied to said heat exchangers from the accumulator via corresponding lines.
  • By dividing the feed line for the solar fluid, the plurality of heat exchangers can each be embodied to be more compact. Standard heat exchangers, which are arranged in a modular manner depending on the requirements, can be used. Standard heat exchangers are available quickly; advantageously, a respective special custom production for a certain solar heat powered system is not necessary. The same parts provide for a minimized storage.
  • According to a first development of the invention, provision is made for the line lengths from the division point of the feed line to each heat exchanger to be approximately the same. In so doing, a piping according to “Tichelmann” takes place, which provides for an equal energetic yield of the solar fluid, which is fed to the heat exchangers.
  • The solar heat powered system according to the invention can be used for a potable water network, a heating water network or for a combination of these two networks. When the heat exchangers are removed from the accumulators and when they are arranged in so-called transfer stations, in which control units are still present, an inexpensive mass storage can then be used for the respective secondary heat carrier.
  • Pumps comprising alert outlets are inserted into the lines for the solar fluid according to a development of the invention, preferably in the area of the transfer stations. High-efficiency pumps are preferably used. If these pumps have an alert outlet, they can display an occurring malfunction. When a flow is made possible in a partial line, for example, through functional pumps, this flow of the solar fluid through a defective pump can have come to a standstill in a parallel partial line. The solar fluid would then stagnate in this partial line. A pump is regularly used for the solar fluid and a pump is used for the secondary heat carrier in response to an external heat exchanger. Both pumps preferably encompass alert outlets so that the functionally reliable operation of the solar heat powered system can also be monitored remotely.
  • Preferably, the heat exchangers are arranged in a vertical orientation of their media flow ducts. This arrangement has proven to be advantageous for an optimal transfer of the heat.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • An exemplary embodiment of the invention, which results in further inventive features, is illustrated in the drawing.
  • FIG. 1 shows a diagrammatic perspective view of a solar heat powered system according to the invention and
  • FIG. 2 shows a side view of components of the solar heat powered system according to FIG. 1.
    •  DETAILED DESCRIPTION OF THE EMBODIMENTS
  • The solar heat powered system in FIG. 1 encompasses solar collectors 1, which are arranged on a roof, for example. A solar fluid is guided to heat transfer stations 3 via lines 2. A heat exchanger 4 is arranged in each heat transfer station 3. The solar fluid is conveyed by a pump 5; it flows through the heat exchanger 4 and back again to the solar collector 1 via the line 2.
  • The solar heat powered system furthermore encompasses an accumulator 6. A secondary heat carrier is guided out of this accumulator 6 to the heat transfer stations 3 via lines 7 and is likewise guided through the heat exchanger 4 by means of pumps 8.
  • Provision is made according to the invention for the line 2 from the solar collectors 1 to the heat exchangers 4 to be divided into two partial lines 9. Both heat exchangers 4 are arranged parallel to one another; standardized heat transfer stations 3 can be used thereby. The line 7 for the industrial water is necessarily also divided into partial lines 10.
  • The heat transfer stations 3 are once again illustrated in FIG. 2. The piping within the heat transfer stations 3 can be seen; the solar fluid of the solar heat powered system is introduced into the heat exchanger 4 at the primary side from below via the partial lines 2, while the secondary heat carrier is in each case introduced into the heat exchanger 4 at the secondary side via the partial lines 7.

Claims (4)

1. A solar heat powered system comprising:
at least one solar collector;
a feed line for solar fluid leading away from the solar collector, said feed line being divided into at least two partial lines in sections; and
at least one heat exchanger arranged in each partial line.
2. The solar heat powered system according to claim 1, wherein the heat exchangers are connected in a water-conductive manner to a potable water network at a secondary side.
3. The solar heat powered system according to claim 1, wherein the heat exchangers are connected to an accumulator system via pipelines.
4. The solar heat powered system according to claim 1, wherein the heat exchangers are arranged in a vertical orientation of their media flow ducts.
US12/387,987 2008-06-11 2009-05-11 Solar Heat Powered System comprising at least one solar collector Abandoned US20090308378A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202008007796U DE202008007796U1 (en) 2008-06-11 2008-06-11 Solar thermal system comprising at least one solar panel
DE202008007796.6 2008-06-11

Publications (1)

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US20090308378A1 true US20090308378A1 (en) 2009-12-17

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EP (1) EP2133632A3 (en)
DE (1) DE202008007796U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202009017729U1 (en) * 2009-12-28 2011-05-12 Christoph Gruel Device for aligning in the directional radiation field

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US2553073A (en) * 1947-11-12 1951-05-15 Barnett Roy Everett Solar heater with spaced parallel heat absorbing sheets
US3763878A (en) * 1971-08-24 1973-10-09 Carefree Int Inc Chlorinating apparatus for swimming pools
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US4004573A (en) * 1975-12-23 1977-01-25 Battelle Development Corporation Process and apparatus for solar energy collection and retrieval
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US4129177A (en) * 1977-06-06 1978-12-12 Adcock Thomas P Solar heating and cooling system
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US4691692A (en) * 1985-12-05 1987-09-08 Conner Jr Leo B Solar energy system with delayed drain-back
US4738305A (en) * 1985-02-04 1988-04-19 Bacchus Rockney D Air conditioner and heat dispenser
US4911228A (en) * 1988-01-01 1990-03-27 Yair Meshulam Apparatus for heating and cooling liquids
US5224466A (en) * 1989-07-28 1993-07-06 Leonhard Kirchmayer Process for converting solar energy into heat and device for implementing the process
US20040149436A1 (en) * 2002-07-08 2004-08-05 Sheldon Michael L. System and method for automating or metering fluid recovered at a well
US6970793B2 (en) * 2003-02-10 2005-11-29 Flow International Corporation Apparatus and method for detecting malfunctions in high-pressure fluid pumps
US20070272233A1 (en) * 2003-02-07 2007-11-29 Harrison Stephen J Method and apparatus for solar collector with integral stagnation temperature control

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* Cited by examiner, † Cited by third party
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US2396338A (en) * 1943-02-24 1946-03-12 Honeywell Regulator Co Radiation heating and cooling system
US2553073A (en) * 1947-11-12 1951-05-15 Barnett Roy Everett Solar heater with spaced parallel heat absorbing sheets
US3763878A (en) * 1971-08-24 1973-10-09 Carefree Int Inc Chlorinating apparatus for swimming pools
US3958755A (en) * 1974-08-05 1976-05-25 Ridgway Steel Fabricators, Inc. Hydro-thermo fireplace and heating system therefor
US3977601A (en) * 1975-04-14 1976-08-31 Sunlife S.P.A. System for recovering solar energy and its direct utilization
US4004573A (en) * 1975-12-23 1977-01-25 Battelle Development Corporation Process and apparatus for solar energy collection and retrieval
US4019495A (en) * 1975-12-29 1977-04-26 Frazier Clive A Control system for solar heater
US4044949A (en) * 1976-02-26 1977-08-30 Ernst Morawetz Heat storage system
US4054124A (en) * 1976-04-06 1977-10-18 Knoeoes Stellan Solar radiation collection system
US4129177A (en) * 1977-06-06 1978-12-12 Adcock Thomas P Solar heating and cooling system
US4173994A (en) * 1977-12-30 1979-11-13 Hiser Leland L Solar energy heating and cooling apparatus and method
US4273101A (en) * 1978-06-13 1981-06-16 Messerschmitt-Bolkow-Blohm Gmbh Solar energy system
US4294227A (en) * 1978-06-16 1981-10-13 Ciba-Geigy Corporation Apparatus for heating water by solar heat
US4224925A (en) * 1978-08-24 1980-09-30 Movick Nyle O Heating system
US4232657A (en) * 1979-04-19 1980-11-11 Killorin Francis H System for use with solar collector
US4307708A (en) * 1979-10-31 1981-12-29 Tadao Tatusmi Solar heated building
US4318781A (en) * 1980-01-11 1982-03-09 Tomimaru Iida Desalinazation apparatus
US4314547A (en) * 1980-02-04 1982-02-09 Walsh Justin E Solar hot water system with sub-loop hydronic heating
US4425906A (en) * 1980-03-18 1984-01-17 Ingestroem Curt Holger Solar heating system in a building
US4325357A (en) * 1980-05-12 1982-04-20 Wormser Eric M Solar energy and ground-water cooling devices
US4371623A (en) * 1981-02-09 1983-02-01 William N. Durkin Solar still
US4449517A (en) * 1981-03-13 1984-05-22 Agency Of Industrial Science And Technology Solar heat plant
US4562828A (en) * 1982-01-04 1986-01-07 Koskela Marvin O Solar water heating system and heat exchanger for use with existing hot water systems
US4508101A (en) * 1982-04-09 1985-04-02 Monsanto Company Thermal energy storage system
US4454865A (en) * 1982-06-07 1984-06-19 Tammen Bobby J Liquid metal solar power system
US4438758A (en) * 1982-06-14 1984-03-27 Brekke Carroll Ellerd Solar heating unit and heat transfer apparatus
US4527618A (en) * 1982-09-29 1985-07-09 Solar Decisions, Inc. Solar energy storage and distribution system with heat pump assist
US4483320A (en) * 1983-02-07 1984-11-20 Wetzel Enterprises, Inc. Solar powered fluid heating system
US4574779A (en) * 1984-10-10 1986-03-11 Hayes Patrick S Solar water heating system
US4738305A (en) * 1985-02-04 1988-04-19 Bacchus Rockney D Air conditioner and heat dispenser
US4691692A (en) * 1985-12-05 1987-09-08 Conner Jr Leo B Solar energy system with delayed drain-back
US4911228A (en) * 1988-01-01 1990-03-27 Yair Meshulam Apparatus for heating and cooling liquids
US5224466A (en) * 1989-07-28 1993-07-06 Leonhard Kirchmayer Process for converting solar energy into heat and device for implementing the process
US20040149436A1 (en) * 2002-07-08 2004-08-05 Sheldon Michael L. System and method for automating or metering fluid recovered at a well
US20060032533A1 (en) * 2002-07-08 2006-02-16 Fisher-Rosemount Systems, Inc. System and method for automating or metering fluid recovered at a well
US7878250B2 (en) * 2002-07-08 2011-02-01 Fisher-Rosemount Systems, Inc. System and method for automating or metering fluid recovered at a well
US20070272233A1 (en) * 2003-02-07 2007-11-29 Harrison Stephen J Method and apparatus for solar collector with integral stagnation temperature control
US6970793B2 (en) * 2003-02-10 2005-11-29 Flow International Corporation Apparatus and method for detecting malfunctions in high-pressure fluid pumps

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EP2133632A3 (en) 2015-03-18
DE202008007796U1 (en) 2008-09-11
EP2133632A2 (en) 2009-12-16

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