AU598194B2 - Balloon type solar concentrator - Google Patents
Balloon type solar concentrator Download PDFInfo
- Publication number
- AU598194B2 AU598194B2 AU58034/86A AU5803486A AU598194B2 AU 598194 B2 AU598194 B2 AU 598194B2 AU 58034/86 A AU58034/86 A AU 58034/86A AU 5803486 A AU5803486 A AU 5803486A AU 598194 B2 AU598194 B2 AU 598194B2
- Authority
- AU
- Australia
- Prior art keywords
- inflatable body
- flexible
- gas pressure
- flexible inflatable
- section
- 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.)
- Ceased
Links
- 239000006096 absorbing agent Substances 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 4
- 238000005338 heat storage Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000037237 body shape Effects 0.000 claims 1
- 230000000063 preceeding effect Effects 0.000 claims 1
- 239000012780 transparent material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 230000005855 radiation Effects 0.000 description 8
- 239000012080 ambient air Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 241001482237 Pica Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000012782 phase change material Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/81—Arrangements for concentrating solar-rays for solar heat collectors with reflectors flexible
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
- F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
- F24S30/45—Arrangements for moving or orienting solar heat collector modules for rotary movement with two rotation axes
- F24S30/452—Vertical primary axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
- F24S2030/10—Special components
- F24S2030/14—Movement guiding means
- F24S2030/145—Tracks
-
- 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
Description
598 94 JiAUSTIALIA Q-1> M <A P/00/011 Form PATENTS ACT 1952 COMPLETE SPECIFICATION
PATENT
(ORIGINAL) '1' FOR OFFICE USE fI S Short Title: Int. Cl: Application Number: Lodged: QO34/al<5 SComplete Specification-Lodged: Accepted: Lapsed: <Published: Priority:
I
Related Art: SLL OLL
SCE
ar.
TO BE COMPLETED BY APPLICANT Name of Applicant: SAddress of Applicant: Actual Inventor: Address for Service: 7 Iay 5 .e6 M' I^l f A DE S
I
GNS
Sao 19 jk9 5 Complete Specification for the invention entitled: The following statement is a full description of this invention, including the best method of performing it known to me:-* Note: The description is to be typed in double spacing, pica type face, in an area not exceeding 250 mm in depth and 160 mm in width, on tough white paper of good quality and it is to be inserted inside this form.
14599/78-L Printed by C. J. THOMPSON, Commonwealth Government Printer, Canberra It 2 TITLE: INFLATABLE SOLAR COLLECTOR/CONCENTRATOR *t 4 4 1.
*r 20 AI I 1.44 4 1 3 4 4 1.
I 1.4 *l 4 '4 1 30 4 44 The invention relates to a solar heater specifically applied to track the sun, to collect and concentrate the solar radiant energy to a high temperature usable heat source to be used by coupled recipient heat reliant processes.
Incident solar radiation is effectively collected and concentrated by a dish reflector means forrrmed on the inner surface of the lower section of the inflated transparent flexible inflatable body. A receiver located at the focal point of the reflector concentrating means within the confines of the pressurized balloon shaped body absorbs and converts reflected concentrated radiant energy by way of a frequency change absorber means to a usable energy source.
The invention is characterized by the flexible inflatable body being maintained at a gas pressure of sufficiently higher amount than the external ambient air pressure, to so maintain the correct focusing curvature of the reflector means of the lower section of the inflated body. The internal gas pressure of the inflated body is so maintained at the crucial value by a control means sensitive to the shape of the flexible reflective lower section of the inflated body as it deforms under pressure to the desired focusing curvature.
The invention has been devised to provide a new, novel, low cost solar energy collector/concentrator device to effectively convert abundant non-pollant readily available solar energy to a usable form to perform work in a much more efficient and economical manner than other known forms of solar concentrators.
The device of the invention would have wide and varied use to provide cheap power for heat reliant processes exhibiting the economies of using a free, readily available, clean, abundant, non-pollutant fuel source. Power or hand tracking of the module may be applied to a great variety of uses; ranging from domestic, commercial and industrial heating, agricultural processes, power generation, pumping water, industrial processes, desalination of salt water to fresh and many other related uses.
I
Utf U4 The apparatus may be produced in an economical manner and further advantages will be apparent from the following description.
For such activities previous solar collectors capable of providing worthwhile energy levels relied on the use of a large number of voltaic. absorber or helistat modules composed of expensive components supported by elaborate tracking structures.
The inflatable type solar concentrator eliminates problems associated with normal open faced focusing reflectors and heliostats related to a high wind-drag forces on these structures together with the proneness of dust and weather damage of the reflective surface.
Damage to the reflective surface is overcome by the sealed nature %I of the present invention also greatly lowering heat losses to the atmosphere.
The inflatable type solar concentrator is a low cost efficient method of providing a large collector surface area in a solar device utilizing off-the-shelf components such as small compressors to furnish the compressed air for inflation of the body and light weight durable polmer sheeting to form the inflatable body form of the concentrator.
The basic inflatable body solar concentrator framework and support structure need only be constructed from light weight sections as the weight and wind resistance of the inflated body is low.
J Large installations can be recessed into an excavated site or I suitably located where the topography of the ground provides protection from strong winds.
IInflatable type solar concentrators in the more moderate sizes, i in single or arranged as a battery of units can be ground mounted in open areas without risk of wind damage, due to their streamlined shape.
Moderate sized units may utilize a low cost type mounting support by eliminating the outer guide rail gantry support, instead depending on a centre pivot support for rotational moverment. Tilting movement of collector/concentrator module would require a light weight side arm drive means as one of the two tracking movements required, replacing the heavy rack used on the larger diameter collector/concentrators.
Alternatively manual sun tracking may be performed with moderate sized units.
The flexible inflatable body of the solar collector/concentrator is readily adaptable to most known tracking structures and sun tracking control systems. Flexible inflatable body of the collector/concentrator may be spherical or of an inverted conical configuration or be formed as any other applicable shape suitable to incorporate the art of the invention.
Suntracking support structure means comprises at least two defined support structures consisting of an outer rotatable support structure coupled to an actuating means responsive to the sun-tracking means, supporting a tiltable inner frame coupled to an actuating means responsive to said sun-tracking means whereby the tiltable inner frame houses the fixably attached flexible inflatable body. Tiltable inner frame is movably mounted on horizontal axis to upright staunchicns of outer rotable support structure by side pivots engaging in bearings.
Support frames and structures may be varied to suit application of the art of the invention which is basically centred on the flexible inflatable bodied collector/concentrator feature of the invention.
The objects of the invention provide the apparatus with the following characteristic embodiments in accordance with a preferred arrangement of the device: ;A solar heated whereby a flexible inflatable body housing collector/concentrator reflector and receiver/absorber means performs the function of converting solar incident radiation to a usable heat source to power heat reliant engines and processes. Flexible inflatable body is securely held within a sun-tracking support structure means characterized by power or manual sun-tracking means to follow the sun on its altazimuthal path, whereby any of the known sun-tracking control means adapted to the sun-tracking function in conjunction with powering means provide the manipulation of the structure. Flexible inflatable body formed as the collector/concentrator of the device is composed of at least two flexible components to form the body section whereby an upper transparent section and a lower reflective section sit one against the other with their larger diameters joined at the midriff by a rigid clamping means formed as a hoop-like shape to fixably attach to tiltable inner frame. The upper transparent section is formed of flexible transparent plastic material such as polypropylene, acrylic, nylon, teflon or other material suited to the requirements of the device. Lower reflective section is formed of a similar flexible material, wearing an internal reflective surface on its inner side 10 whereby in operation due to the gas pressure within flexible inflatable body maintained above ambient air pressure a dished reflector is formed by deformation of this lower reflective section. Optimum optical reflective concavity by a gas pressure control means responsive to curvature of dished reflector to continually adjust internal gas pressure of flexible inflatable body to maintain focal point of reflected radiation within the receiver/absorber means located within the confines of the flexible inflatable body.
The receiver/absorber means located centrally as a component of the top member of the tiltable inner frame encompassing the flexible S0 inflatable body, whereby a circular flange in concentric relationship i to receiver/absorber means is made with an integral heat barrier means I located concentrically between outer apex clamping means and inner affixing means to receiver/abosrber means.
Circular flange components assemble together and to the receiver/ i absorber means in a gas sealed state.
The outer apex clamping means of the circular flange,clamp I securely to the top peripheral edge of the upper transparent section i in a gas sealed state. Heat generated within the receiver/absorber means is confined from being conducted across the circular flange, by the integral heat barrier means acting as a insulative body. The receiver/absorber means being securely located by the top member of the tiltable inner frame is kept accurately placed to be located at the focal point of the dish reflector means as the lower reflective section securely positioned by the midriff clamping means which is rigidly attached to the side arms of the tiltable inner frame whereby its r tiltable innerframe attaches to main rotatable support structure by spigots into bearings horizontally located on the upright arms of main rotatable support structure.
Tiltable inner frame structure has a lower sub-frame bridging under the lower reflective section of the inflatable body to support the affixed gas pressure control means responsive to curvature of the dished reflector to provide the optimum focusing of the reflected solar radiation to the confines of above placed receiver/absorber means., Receiver/absorber means may consist of an open ended cylinder composed of high working temperature material such as ceramic material or high heat tolerant metal of the nickel alloy variety. Blackened inner surface of open-ended cylinder would provide the solar radiation receiver/absorber means.
The receiver/absorber means would have an adjacent compartment to receiver/absorber shell to contain a phase change material such as salts, metal or synthetic oil to act as a heat storage means whereby by a circulating conductor means in the form of tubing immersed in heat storage means heat transfer occurs to a circulating liquid or gas passing to external heat reliant appliances or processes.
The flexible inflatable body area bounded by the walls of the upper section and the lower reflective section as the dished reflector maintained at above ambient air pressure by an external gas pressure means such as a small compressor maintaining a specific gas pressure in a reservoir. Positioned centrally under dished reflector a sub-frame as a part of emncompassing tiltable inner frame holds a gas pressure control means in a spaced-apart relationship from dished reflector responsive to the dished reflections curvature. Gas pressure control means has a valve housing for one or more movable valve members.
A valve rmember actuating means for shifting the position of valve members to open or close, to control gas pressure wiithin the flexible inflatable body whereby actuating means is by linkage responsive to dished reflector curvature as transferred into linear movement to shift control means valve members.
0 Other sensor means responsive to variations in dished reflectors curvature such as electronic or optical driven actuating means may perform the same function. Coupled valve members of pressure control means govern internal gas pressure of the flexible inflatable body to maintain optimum focusing curvature of the dished reflector.
Whereas under conditions of heat expansion or for other reasons gas pressure rises above optimum valve within the flexible inflatable body, pressure control responsive to the dished reflectors curvature will cause the valve members of the gas pressure control means to act to exhaust gas to maintain the level of gas pressure at a value equivalent to maintain the optimum dished reflector curvature necessary to focus reflected solar radiation into the apex mounted receiver/absorber.
Conductor connected between flexible inflatable body and gas Fressure control means facilitates this process, acting by way of the conducting means to pass gas to and from inflated body by way of control means to increase or decrease pressurize of flexible inflatable body Sto maintain optimum curvature of the dished reflector means related Sto focusing needs. Gas pressure control means has an inlet for i 20 receiving gas under pressure from an external gas pressure means. The invention will now be described in greater detail with reference to the accompanying drawings wherein: Detailed description of Embodiment: Reference to the drawings Fig. 1 shows a solar energy device 20/2/90 employing the principles of the present invention particularly adapted to supply heated or pressurized gas, vapor or liquid as a heat transfer or powering means to heat or pressure reliant engines, appliances or processes.
In broad terms the device comprises a flexible inflated body 2/9 as the solar collector/concentrator mounted within an encompassing tiltable support structure 8 whereby the peripheral edge of the upperflexible section of the inflated body 2 is gas seal joined by a midriff clamrping means 15 to adjacent loerflexible section 9 6 4 constructed of flexible material with an inner reflective coated surface 30; said clamping means 15 being fixably connected at position A to upright side arms 13 of inner tiltable frame 8 to rigidly hold upper and lower flexible sections of the inflatable body 2 and 9 sealed together and in position. Peripheral edge of extending walls of upperflexible section 2 of the inflatable body gas-seal to the apex clamping and insulating means 23 which is in turn fixably attached in a gas seal means to the receiver/absorber 5 which in turn is fixably attached at position 7 to tiltable support structure 8 thereby firmly locating the said receiver/absorber at the focal point of the dished reflector 30 of the lower flexible section 9 of the inflatable body.
Structured into the said apex clamping means, a low heat transference insulative means such as heat resistant glass or ceramic provides a heat barrier between the receiver/absorber 5 and the clamping means 23. Bridging section 10 of the tiltable inner frame 8 locates under the lower flexible section 9 of the inflatable body fixably attached to upright arms 13 of assembly 8 at A. Located at position B on either side of upright arms 13 of the inner tiltable frame 8 are spigots 27 movably located in bearings 28 of upright stanchions 31 of rotatable support structure 32. Tilting movement of tiltable inner frame 8 by actuating means 33A of trzcking means may control the angled position of til-able inner frame 8 and its housed flexible inflatable body assembly.
Alternatively angled position of sun-tracking path may be controlled by a lower placed 33B actuating means of the tracking means Ssuch as a rack and pinion trolley arrangement for large installations.
,i Actuating means 33B would located centrally between bridging section of tiltable support structure 8 and base member of rotatable support structure.
Rotatable support structure means 32 may use an actuating means j' 33C coupled to a tracking sensing means at position F to control the sun-tracking function of rotatable support structure 32.
Alternatively rotatable support structure 32 actuating means 33D located at position G may accomplish sun-tracking movements of this structure. In large installations a low friction support means 28 using wheels and tracks to support complete structure, clear of foundations would couple with a tracking means actuator 33D placed OA l at position G.
Incident solar radiation falling on reflective surface 30 of the flexible dished reflector concentrates the focused radiant energy to a focal point inside the blackened absorber of the receiver/absorber means 5. A fixing means 7 locates the receiver/ absorber means 5 at position J centrally positioned on the under side of the top member of tiltable inner frame 8 of the tracking assembly.
Internal gas pressure within the flexible inflatable body, and related focusing means adjustments are maintained by a gas pressure control means 4 located fixably attached to bridging section 10 of tiltable support structure 8; gas pressure control means 4 is sensitive to curvature of dished reflector means Reflected radiation entering the open end of the receiver/absorber means 5 is absorbed by the internal blackened surface of a high working temperature material such as ceramic or stainless steel to heat a storage transfer means located as a component of said receiver/ absorber means. Circulating conductors or pipes irmersed in the heat storage and transfer means connect to lines or pipes 6 for external I connection to heat or pressure reliant motors, appliances or processes.
20 Sun-tracking support structure 40 housing the flexible inflatable i! body2/9 may use any of the known sun-tracking actuators as shown placed at positions 33A, 33B, 33C and 33D on Fig. 1 to provide the altaz' 'thal tracking of the sun. These actuators would be commanded by a known directional sensing module to be used as a component of the invention.
I
Important specific components of the device will now be described in greater detail in conjunction with the related drawings: Gas pressure control means responsive to the curvature of the flexible dished reflector.
Gas pressure control means 4 responsive to variations in the curvature of the gas pressure formed flexible dished reflector 30 may use a mechanical linkage between the lower centre of the dished 8 reflector 30 whereby a spindle means opens and closes movable valve members internal to the common valve housing to allow compressed gas to inflate connected flexible inflatable body to increase cavity pressure to deform lower reflective section of inflated body to maintain focusing curvature of dished reflector optimized to the correct focal oint within receiver/absorber means Over pressure within the cavity of the inflated body 20 would result in the over curvature of the reflective surface 30 and the control sensing means would occasion release of gas pressure by the action of movable valve members to maintain a constant focusing value.
Alternately gas pressure control means may employ an electronic or optic sensing means to institute movement of valve members in relation to flexible reflector curvature to maintain optimum focusing.
Altazimuthal sun-tracking means may use tracking support structure whereby the arcing movement of the tilting inner frame 8 is controlled i by movement of a trolley 16 fixably attached to bridging section of the tiltable frame structure 8. A pinion gear on the trolley drive i1 means engages with quadrant rack located on base of rotational S/ 20 support structure 31. A secondary drive rotates the support structure 32 to provide accurate tracking. Hand sun-tracking may suit some applications.
To those skilled in the art to which this invention relates; many changes in design, components, construction and widely differing S-embodiments and applications of the invention will suggest themselves without departing from the spirit and scope of the invention. The 'disclosures and description herein are purely illustrative and not in any sense limiting or being restricted to a precise form.
A.G. YARRINGTON.
12th NOVEMBER 1989.
9 1ru*
Claims (7)
1. A solar heater comprising; a sun-tracking support structure means housing a collector/ concentrator formed as a flexible inflatable body comprised of a upper transparent section and a lower reflective section joined at midriff by a rigid clamping means fixably attached to a tiltable inner frame; said upper transparent section of said flexible inflatable body formed of flexible transparent material and said lower reflective section of flexible inflatable body formed of a flexible material wearing an internal reflective surface on its inner side formed as a dished reflector by deformation of lower reflective section by gas pressure within the confines of the flexible inflatable body; a receiver/absorber located centrally as a component of top member of said tiltable inner frame encompassing said flexible inflatable body; said receiver/absorber means located at focal point of said I dished reflector; a circular flange in concent-ic relationship to said receiver, absorber means made with an integral heat barrier means loca concentrically between outer apex clamping means and aer affixing means to receiver/absorber means; said circular flange compo s assemble together and to receiver/absorber means 'a gas sealed state; apex ripheral edge of upper section of flexible inflatable bo are clamped securely by apex clamping means of circular flange in a gas coaled state;- a gas pressure control means to govern internal gas pressure of inflatable body to maintain optimum focusing curvature of dished reflector; JO F said gas pressure control means including a valve housing for one or ore movable valve members; means responsive to curvature of dished reflector for shifting position of said movable valve members to control gas pressure within said flexible inflatable body; a conducting mans connecting said flexible inflatable body to gas pressure control mans and the atmosphere; a said gas pressure control means having an inlet for receiving gas under pressure from an external gas pressure means; a said receiver/absorber means having a heat storage/exchanger means.
2. A solar heater as in claim 1 wherein a suntracking support structure mans comprises at least one tiltable inner frame whereby focusing means of flexible inflatable body can be aligned with altazimuthal path of the sun by manual operation; said tiltable inner frame housing the flexible inflatable body j composed of an upper transparent section and lower reflective section joined at midriff by a rigid clamping means whereby the lower neripheral edge of the upper transparent section joins the upper Speripheral edge of the lower reflective section in a gas tight seal; Ssaid rigid clamping means to firmly hold the peripheral edge of the flexible reflective material of the lower reflective section of the flexible inflatable body to allow even deformation to required focusing curvature under gas pressure maintained within the confines of the flexible inflatable body at a pressure above ambient pressure i of the atmosphere.
3. A solar heater as claimed in 1 and 2 wherein sun-tracking support structure means comprises at least two defined support structures consisting of an outer rotatable support structure coupled to a actuating means responsive to a sun-tracking means supporting a tiltable inner frarme coupled to an actuating mans responsive to said Cu II sun-tracking mreans, said tiltable inner frame housing the fixably attached flexible inflatable body; said tiltable inner fraffe movably mounted on horizontal axis to upright stanchions of said outer rotatably support structures.
4. A solar heater as claimed in any one of the claims 1 to 3 wherein the solar radiant energy concentrating me~ans consists of a flexible dished reflector formed by gas pressure deformrat ion of the flexible reflective material of the lower reflective section of the flexible inflatable body held supported by a rigid clamping mans.
A solar heater as claime~d in any of the claims 1 to 4 wherein the rigid clamping means joining the upper transparent section and the lower reflective section of the flexible inflatable body my be in the form of a 'hoop-like' structure fixably attached to the tiltable inner frame of the sun-tracking support structure mans; said rigid clamping mans locks upper transparent section and lower reflective sections together in a sealed state; t a gas pressure control means valve member actuating mans to open or close to control gas pressure within the flexible inflatable body -is responsive to dished reflector curvature as transferred into linear movement; a sensor means responsive to variations in dish reflectors curvature characterized by electronic and optical means.
6. A solar heater as claimed in any of the preceeding claims whereby the flexible inflatable body shape is characterized by spherical and conical shape suitable to the objects of the invention.
7. A solar heater as substantially described and illustrated in the accompanying specifications and drawings. A.G. eITN DAT IJ
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU58034/86A AU598194B2 (en) | 1985-05-22 | 1986-05-19 | Balloon type solar concentrator |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPH0666 | 1985-05-22 | ||
| AUPH066685 | 1985-05-22 | ||
| AU58034/86A AU598194B2 (en) | 1985-05-22 | 1986-05-19 | Balloon type solar concentrator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU5803486A AU5803486A (en) | 1986-11-27 |
| AU598194B2 true AU598194B2 (en) | 1990-06-21 |
Family
ID=25631899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU58034/86A Ceased AU598194B2 (en) | 1985-05-22 | 1986-05-19 | Balloon type solar concentrator |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU598194B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8724959D0 (en) * | 1987-10-24 | 1987-11-25 | Dow Corning Sa | Filled compositions |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU525134B2 (en) * | 1978-10-02 | 1982-10-21 | Shell South Africa (Proprietary) Limited | Solar heater |
| AU2087783A (en) * | 1982-11-03 | 1984-05-10 | Lemlin, J.S. | Solar still |
-
1986
- 1986-05-19 AU AU58034/86A patent/AU598194B2/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU525134B2 (en) * | 1978-10-02 | 1982-10-21 | Shell South Africa (Proprietary) Limited | Solar heater |
| AU2087783A (en) * | 1982-11-03 | 1984-05-10 | Lemlin, J.S. | Solar still |
Also Published As
| Publication number | Publication date |
|---|---|
| AU5803486A (en) | 1986-11-27 |
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