Abstract: A solar barbeque and solar oven combination that provides for solar cooking, grill-style or oven-style, outdoors. The grill portion sits on top and has a glass cooking surface. Beneath the cooking surface are a series of louvers that can be open and closed to control temperature. A volume of space below the louvers has mirrored surfaces for the collection of solar energy. A side table is foldable and attached to the grill portion for additional mirrored surfaces and grilling surface area. Below the grill is a solar oven being enclosed on three sides and having doors in the front made of glass that are openable with wooden handles. Inside of the solar oven are mirrored surfaces and a grill/ surface for cooking. On the bottom of the interior of the oven is a heat capturing and/or storing device such as a heating stone or metal heat battery. The entire apparatus includes support legs with wheels and a handle for easy transport.

Abstract: Systems and methods for falling particle receivers are disclosed that include shield or deflector structures around the receiver aperture to reduce wind effects and/or heat losses from the falling particles. External and internal structures are disclosed that can be tailored to reduce particle, thermal, and radiative losses from within the cavity receiver due to external wind and the falling particles that are irradiated within the receiver. Structures of varying shapes, sizes, and composition (transparent, reflective) are described.

Abstract: A solar receiver includes a hollow body, which has a longitudinal axis (8.4), a wall (8) surrounding the longitudinal axis (8.4), an opening (9) disposed in the wall (8) for the entry of heat rays, and an end region opposite the opening (9). The wall (8) includes an outer wall (8.1), an inner wall (8.2), and a partition wall (8.3) disposed therebetween. The outer wall (8.1) and the partition wall (8.3) enclose an outer annular space (8.1.1). The inner wall (8.2) and the partition wall (8.3) enclose an inner annular space (8.2.1). The outer annular space (8.1.1) has, in the end region, an inlet (12) for a free-flowing medium. The two annular spaces (8.1.1, 8.2.1) are conductively connected to one another in the region of the opening (9), and the inner annular space (8.2.1) has an outlet (11) for a free-flowing medium in the end region.

Abstract: A hardened solar thermal energy collector (STEC) system that is adapted to withstand a nuclear detonation or other powerful explosion in the vicinity. The STEC system comprises a plurality of collector tubes arranged side by side in an array that carry and circulate a working fluid, each of the plurality of collecting tubes having an upper radiation collection surface having a diffractive optical structure and a bottom surface, a supporting tray upon which each of the collector tubes is securely mounted, an insulated housing set beneath a ground surface level enclosing the plurality of collector rubes and supporting trays, and a secured underground geothermal storage unit fluidly coupled to the array of collector tubes. The housing, the plurality of collector tubes, and the tray are positioned such that topmost portions thereof are at the ground surface level or below.

Abstract: A solar collector 1 for the temporary storage of heat from solar radiation comprising a radiation conductor 8, 9 for conducting the solar radiation, and lens means 7 for concentrating solar radiation onto a first extremity of the radiation conductor. A thermally-insulated core 2 is provided on an opposite second extremity of the radiation conductor 8, 9 in order to be heated by the solar radiation released from the radiation conductor and temporarily storing the heat. For this purpose, the core is provided with an insulated casing 4, virtually completely enveloping the core, which insulated casing 4 comprises a layer of porous ceramic material.

Abstract: This invention relates to a portable or fixed solar powered heating ventilation air conditioner (HVAC) system. The disclosed invention consists of the following major components. 1) Solar Hot Water Tank/Storage Tank, 2) Solar Generator, 3) Solar HVAC Heat Exchanger Unit, 4) Solar Grill, 5) Wireless Network Energy Monitoring System and 6) Supervisor Control and Data Acquisition (SCADA) system. Also included is a list of appliances that the HVAC system can be configured to function as: a) refrigerator, b) air purifier/fan, c) pressure cooker, d) drink dispenser, and e) pressurized hot water supply. The HVAC system and above listed appliances is designed to be used in homes, businesses, camping, military, hospitals, FEMA and in developing countries with very little electrical or plumbing infrastructure.

Abstract: The present invention relates to a solar cooking apparatus, comprising: a first solar reflector; a second solar reflector; a solar collection element; and a solar collection element holder, wherein the first solar reflector and the second solar reflector are concave, and symmetrically arranged and aligned with a solar collection element axis, the reflectors having a up to a 360° range of motion around a plane perpendicular to the solar collection element axis, and focusing radiation at the solar collection element, which rapidly heats when the first and/or second solar reflectors are in an opened position, the first and second solar reflectors shield the solar collector when in a closed position. The solar cooking apparatus is adjustable and, in some embodiments, portable.

Abstract: Building materials and methods of making a building material are disclosed. An exemplary method includes receiving algae; and subjecting the algae to an oil extraction process, in order to produce vegetable oil. The method further includes producing synthetic fibers by processing the vegetable oil from the oil extraction process; and processing the synthetic fibers to produce a tension and pressure resistant material.

Abstract: A process conducts organic reactions in a standalone laboratory scale solar photo thermo chemical reactor. For organic reactions require elevated temperature, light and mechanical agitation, all three energy forms can be simultaneously derived from solar radiation. Organic synthesis, such as bromination of toluene derivatives (benzylic bromination), bromination of cyclic acyclic hydrocarbon and oxidative cyclization of N-phenylethyl benzamide through bromination were successfully conducted in such reactors.

Abstract: The present invention relates to a solar cooking apparatus, comprising: a first solar reflector; a second solar reflector; a solar collection element; and a solar collection element holder, wherein the first solar reflector and the second solar reflector are concave, and opposably arranged and aligned with a solar collection element axis, each reflector having a range of motion on a plane perpendicular to the solar collection element axis, and focusing radiation at the solar collection element, which rapidly heats when the first and/or second solar reflectors are in an opened position, the first and second solar reflectors protectably encase the solar collector when in a closed position. The solar cooking apparatus is adjustable and, in some embodiments, portable.

Abstract: A trough collector for solar energy, with multiple parallel troughs preferably being contained within a single unit. The collector does not use conventional azimuth tracking in order to keep the sun's rays directed toward the parabola's focus as the sun moves across the sky. Instead, the relative position between the collecting device (preferably a conductive tube containing a circulating working fluid) and the plane of symmetry for each collector is adjusted so that the collecting device remains within the focal zone of the collector as the sun traverses the sky.

Abstract: The present invention discloses further improvement of the shape and disposition of the optical reflecting elements that make up the primary concentrating reflector and the secondary redirecting reflector disclosed in U.S. application Ser. No. 12/580,251 (Solar Energy Concentrator) filed by the same Inventor. In one aspect, it discloses a method for designing and building reflectors for a solar concentrator array comprising primary and secondary reflectors wherein the multiple components cooperate to continually concentrate the incoming solar radiation on a remote stationary absorber as the sun runs its course across the sky.

Abstract: A solar cooking appliance comprising a solar heat collector to collect and store solar heat, a heat storage and conducting material partially filling said solar heat collector and a set of solar cooking utensils, where each utensil is sized to fit a shape and size of the internal shape and size of the solar heat collector. The utensil has a wall which is heatingly connected to the heat storage and conducting material and an internal wall of the solar heat collector to receive solar heat for cooking food. The utensil further comprises a removable part for opening and closing said utensils during cooking.

Abstract: Solar heat collector, especially an evacuated-tube solar heat collector, filled with first solid heat storage and conducting material transfers the solar heat to an electric power heat insulated utensil through second heat conducting/transferring material for cooking foods and making coffee/tea. A set of solar cooking appliance having a solar heat collector filed with a first solid heat storage and conducting material and a solar cooking range filled with third solid heat storage and conducting material. The solar cooking range having a heat insulated enclosed compartment and also having a cooktop. The cooking range having a set of cooking chambers which are in thermal contact with the first and second heat storage and conducting material for cooking food therein. The cooking appliance also has a group of removable parts that cover the cooking chambers separately. An electric power heater provides a backup energy source and electric heat storage.

Abstract: A solar chimney includes a solar collector which heats air in the chimney, producing updrafts which can be harnessed to perform useful work. The solar collector may be located inside or outside the chimney. The device may include a reservoir for storing a heat transfer fluid, thus enabling the device to be used during both day and night. The solar chimney may be equipped with both internal and external solar collectors, operating in parallel. The solar chimney may also be equipped with multiple external solar collectors, connected in parallel to a reservoir. The solar chimney of the invention provides a convenient and practical way to convert solar energy into electrical power.

Abstract: The present invention relates to a solar cooking apparatus, comprising: a first solar reflector; a second solar reflector; a solar collection element; and a solar collection element holder, wherein the first solar reflector and the second solar reflector are concave and parabolic, and are in a substantially symmetrical arrangement to a solar collection element axis, each reflector focuses solar radiation at the solar collection element from a reflective surface, which rapidly heat when the the solar collection element. The solar cooking apparatus is adjustable and, in some embodiments, portable.

Abstract: Disclosed are systems and methods to concentrate sunlight with inflatable enclosures to heat substances, including fluids and for cooking, and to provide concentrated sunlight for other uses. The system includes an inflatable sunlight concentrator (upper balloon), an inflatable cooking housing (bottom balloon), and a cooking container. When inflated, the upper balloon has a substantially cone-shape and concentrates sunlight towards the bottom balloon. The bottom balloon may be of various shapes and may concentrate sunlight towards the cooking space. Each balloon is less than two ounces and can be folded into a small pocket-sized package when it is deflated. The cooking space may be a thermal bag, a box, or an insulated space.

Abstract: A solar oven designed for year-round use is readily-accessible and easy to use by simply removing a protective oven cover. The solar oven replicates the mainstream cook's current pattern with standard stoves, requiring little set-up or storage. Access to the solar oven is from the front and solar heat is stored in an upper oven chamber. By changing the solar oven chamber above the door, heat remains in the trapezoidal-pyramid cover during transfers and condensation is reduced to a minimum. By raising and lowering the floor, the solar oven allows the gasketed oven chamber to perform food cooking while being protected to prevent loss of heat. The solar oven remains available in all weather, does not fade in color and is attractive to most mainstream cooks.

Abstract: A rotating-air-compressor moves ambient-air into a solar-smelter, which heats and compresses the ambient-air for a wind-chimney. Located in the wind-chimney is a rotating-helix that captures the ambient-air creating rotational energy. An over-spin-valve controls the velocity of the ambient-air to prevent over spinning of the rotating-helix. A rotating-shaft drives a rotating-machine. Attached to a parabolic-half-shell is a parabolic-overhang protecting a crucible in the solar-smelter from rain and wind.

Abstract: A tilt-able-central-planar-reflector, a tilt-able-auxiliary-left-planar-reflector, and a tilt-able-auxiliary-right-planar-reflector are hingely attached to a solar-absorbing-thermal-mass. The sun's light is made horizontal to reflect to the interior wall of a reflecting-curved-overhang, capturing the sun's sunrise light and sun's sunset light, and to reflect to the interior wall of a reflecting-parabolic-half-shell capturing the sun's noon light, so as to redirect the sun's light to a solar-absorbing-thermal-mass. The net result provides heat 24 hours a day, 7 days a week for utilization.

Abstract: A positioning system is attached to radiation collection device such as a solar oven. The positioning system is attached to an outside of a building structure, allowing the collection device to be positioned in a plurality of locations. At least one of the plurality of locations is away from the building structure to allow the radiation collection device to collect solar radiation.

Abstract: A revolution-of-a-parabolic-curve is sliced by two planes to form a reflecting-parabolic-splice-solar-smelter so as to focus the sun's noon light to a crucible for smelting rocks, glass and metals and for processing of chemicals, using zero degrees of freedom.

Abstract: A sports equipment bag assembly having a removable bag enclosure for heating bats using sunlight. The removable bag enclosure has a transparent outer panel and a solar reflective inner panel. The reflective surface both insulates and reflects the solar light to heat the bats. The removable bag enclosure is removably fastened to a larger bag assembly by a fastener such as a zipper. The removable bag enclosure and the larger bag assembly have hooks that enable them to be hung upon a fence or similar structure. The sports equipment bag assembly further provides a shoulder strap to facilitate carrying.

Abstract: A solar furnace for heating a target having a heliostat with a reflective surface having a reflective portion, a surface altering mechanism capable of altering the shape of the reflective portion, and a target having a target area, the reflective surface capable of reflecting radiant energy toward a target.

Abstract: An oven muffle that has at least two wall elements adjoining each other, which delimit at least some regions of an interior space that is used as a cooking chamber. The wall elements are of a glass or a glass ceramic and the adjacent wall elements are oriented at an angle with respect to one another. In an oven muffle of this invention, along with ease of cleaning, a simple structural design is achieved if the wall elements are integrally joined to one another and constitute one formed part.

Abstract: Invented is a solar smelter that also manufactures hot air or hot fluids. A curved parabolic-half-shell and curved-overhang focuses the sun's rays, sunlight, unto a crucible, which is buried into a thermal-mass, or the ground. Using a planar-reflector, or heliostat, the sunlight is reflected horizontally unto an interior reflective wall of the curved parabolic-half-shell and curved-overhang. Surrounding the crucible is a thermal-mass with embedded pipes, that manufacture hot and compress air, or heat a gas or fluid. On top of the thermal-mass is a clear transparent-and-insulating floor that captures any stray solar rays, sunlight, adding heat to the thermal-mass. At the foci of the parabolic-half-shell and curved-overhang is a crucible for melting rocks, sand, glass or metals, or processing chemicals.

Abstract: Problem to be Solved The present invention is made in view of the above-described circumstances. An object of the present invention is to provide a sunlight collecting system achieving suppression of power generation cost with the receiver which enables suppressing the manufacturing, transportation and construction costs, facilitating recovery work in the case of occurrence of a failure, and promptly recovering a heating medium circulating inside the receiver in an emergency.

Abstract: The present invention relates to a solar system for providing volumetric energy reproducing the effect of a combustion flame for a high-temperature industrial process, characterised in that it comprises: a solar receiver exposed to concentrated solar radiation, in which heat transfer fluid (liquid or gas) is brought to high temperature; at least one high-temperature chamber in which said high-temperature industrial process is performed; injection means of the heat transfer fluid in the form of a gas jet reproducing a combustion flame in the at least one high-temperature chamber. The present invention also relates to a process for providing volumetric energy reproducing the effect of a combustion flame for this purpose.

Abstract: Solar power conversion system. The system includes a cavity formed within an enclosure having highly specularly reflecting in the IR spectrum inside walls, the enclosure having an opening to receive solar radiation. An absorber is positioned within the cavity for receiving the solar radiation resulting in heating of the absorber structure. In a preferred embodiment, the system further contains an energy conversion and storage devices thermally-linked to the absorber by heat conduction, convection, far-field or near-field thermal radiation.

Abstract: A solar absorber module is described. The module has a housing with a longitudinal axis with a first tapered housing section with a first, free end, and a second end with a reduced cross-sectional area compared to the first end, and with a second housing section adjoining the second end of the first housing section with a substantially constant cross-section over its length. The module also has a ceramic solar absorber element accommodated in the first end of the first housing section with a first surface that can be oriented toward the solar radiation with an axis of symmetry, and a second surface lying across from the first surface, wherein the solar absorber element has a large number of substantially straight channels connecting the first surface to the second surface. The solar absorber module is accommodated in the first end of the first housing section such that the axis of symmetry of the first surface is inclined relative to the longitudinal axis of the housing.

Abstract: One embodiment of the present invention discloses an apparatus for solar-thermal collection.

Abstract: The rate of degradation of a cooked food product that is maintained at an elevated temperature can be reduced by the use of an encapsulated environment food holder. The encapsulated environment is a small, airtight or semi-airtight containment vessel that retains compositions that escape from a cooked food product over time. The volume of an encapsulated environment is greater than one hundred percent but less than one-thousand percent of the cooked food product volume. By holding single servings or portions of a cooked food product in a small, encapsulated environment palatability or taste of a cooked food product can be extended.

Abstract: The disclosure relates to a solar heating device comprising at least one incidence collector and a thermal container. The thermal container includes at least one light absorbing recess, wherein at least one of the incidence collectors focuses solar beams on a focal point, which is located inside the light absorbing recess. The inner surface of the light absorbing recess converts the energy of the solar beams into radiant heating.

Abstract: An apparatus is provided for the collection and conversion of light energy. The apparatus includes, a sandwich core structure, a collector element and a concentrator including one or more reflector elements and positioned at an exterior surface of the sandwich core structure.

Abstract: Melting metals using the sun's energy is not new, but is new is making the technology ergonomic, and easy to use. Invented is a half-circular-planar-reflector with a cut-a-way-triangle, hinged and attached a half-shell-parabolic-reflector. When the sun is overhead, the sun's energy reflects off the flat half-circular-planar-reflector to a half-shell-parabolic-dish-reflector, which redirects the sun's energy to a crucible for smelting metals, which is also the focus of the sun's energy. The entire assembly rotates on top of a turntable, which can be steel wheel, floating on compressed air, bicycle wheels, or other suitable methods. The entire assembly rotates about a crucible located at the focal of the sun's energy. A smaller version of the smelter can be used for solar cooking.

Abstract: The present invention relates to a solar cooking apparatus, comprising: a first solar reflector; a second solar reflector; a solar collection element; and a solar collection element holder, wherein the first solar reflector and the second solar reflector are concave, and opposably arranged and aligned with a solar collection element axis, each reflector having a range of motion on a plane perpendicular to the solar collection element axis, and focusing, radiation at the solar collection element, which rapidly heats when the first and/or second solar reflectors are in an opened position, the first and second solar reflectors protectably encase the solar collector when in a closed position. The solar cooking apparatus is adjustable and, in some embodiments, portable.

Abstract: A solar absorber module is described. The module has a housing with a longitudinal axis with a first tapered housing section with a first, free end, and a second end with a reduced cross-sectional area compared to the first end, and with a second housing section adjoining the second end of the first housing section with a substantially constant cross-section over its length. The module also has a ceramic solar absorber element accommodated in the first end of the first housing section with a first surface that can be oriented toward the solar radiation with an axis of symmetry, and a second surface lying across from the first surface, wherein the solar absorber element has a large number of substantially straight channels connecting the first surface to the second surface. The solar absorber module is accommodated in the first end of the first housing section such that the axis of symmetry of the first surface is inclined relative to the longitudinal axis of the housing.

Abstract: Solar heat collector, especially an evacuated-tube solar heat collector, filled with first solid heat storage and conducting material transfers the solar heat to an electric power heat insulated utensil through second heat conducting/transferring material for cooking foods and making coffee/tea. A set of solar cooking appliance having a solar heat collector filed with a first solid heat storage and conducting material and a solar cooking range filled with third solid heat storage and conducting material. The solar cooking range having a heat insulated enclosed compartment and also having a cooktop. The cooking range having a set of cooking chambers which are in thermal contact with the first and second heat storage and conducting material for cooking food therein. The cooking appliance also has a group of removable parts that cover the cooking chambers separately. An electric power heater provides a backup energy source and electric heat storage.

Abstract: An apparatus for supporting and aiming various solar devices. Includes a cradle assembly (70) with two tilt pivots (59) located on opposite sides for vertical adjustment, and a turntable (46) for horizontal adjustment. Both adjustments, required for aiming the device toward the sun, are accomplished simultaneously and instantly by steering a biaxial control arm (74) while sighting an aiming instrument (88). The instrument can be used for aiming the solar device either in a direct line or by using the novel aim-ahead indicia (101). An optional utility cart (140) is used for mobility. The cradle assembly locks in either a direct-fit solar device (226) or an adaptor box (110) that, in turn, latches to a standardizing interchange mount (122). The mount, along with a device mounting kit (FIG. 16D), converts various solar devices (FIGS. 2, 12B, 13, and 16E) from different manufacturers, to be utilized by the apparatus. A second embodiment (FIGS.

Abstract: A passive solar heating unit is disclosed, including a portable heater version of the invention that includes an insulated shell structure, an inclined, vertically shaped window formed within the structure, an insulated door to the structure, a handle, and two operating positions, one for summer and one for winter. The heating unit has a dark exterior to absorb heat and a reflective interior to trap sunlight entering through the window. When used to generate heat sufficient to heat food and other items, the ratio of the interior volume of the unit to the size of the sunlight window is approximately 16:1. Other configurations, for providing heat in other applications, utilize different volume to window size ratios and different shaped windows.

Abstract: Developed is a solar cooker with triangle reflective sides. Above and below are two movable solar reflecting panels that can be adjusted to focus light onto a frying pan using a glass lid, an insulating pad, and a surrounding plastic bag to trap solar light for cooking. The triangle reflective sides are used also to adjust and support the two movable solar reflecting panels via movable pegs. In the corners adjacent to the triangle sides, back reflective plate and reflective floor plate is an invented reflective-tilted-equilateral-triangle-plate with each of the three angles at 60 degrees in all three horizontal and vertical dimensions, to capture and reflect light towards the solar cooking area dishware. At night the entire solar cooker can be folded down to form a storage space. The entire solar cooker is foldable for shipping.

Abstract: A heating cabinet is provided capable of keeping foods warm by use of solar energy. The heating cabinet includes a body member, which has an outer surface formed using transparent material and is configured to form an accommodation space therein, in which an inside of a part surrounding the accommodation space to be filled with heat retaining fluid heated by solar energy such that heat received from solar energy is stored in the heat retaining fluid to keep contents accommodated in the accommodation space warm; and a detachable member which is formed at one side of the body member to allow the body member to be detachable to the window. Foods contained in the heating cabinet are kept warm. When taking foods contained in the heating cabinet, a user takes foods by separating the heating cabinet from the window. Alternatively, a user separates the heating cabinet from the window and takes foods while carrying the separated heating cabinet.

Abstract: An improved solar oven with the ability to overcome recognized prior art limitations, such as temperature variation during prolonged cloudy periods is described. The solar oven according to the invention utilizes an enclosure similar to a box type oven and a thermosiphon (alt. thermosyphon) device to generate and maintain heat sufficient to cook food. The invention also encompasses a method of solar cooking utilizing an enclosure similar to a box type oven and a thermosiphon device.

Abstract: A portable solar oven which relies upon sunlight as a clean, readily-available and inexpensive source of fuel to generate the heat necessary to cook solid foods or boil liquids. The solar oven includes a cooking trough in which the food to be cooked or liquid to be boiled is placed. A hood is hingedly connected to the cooking trough and rotatable between a closed position seated upon the trough and an open position lifted upwardly and off the trough. A flared sunlight collector is connected atop the hood and rotatable therewith. The solar oven is removably received by and transported from place to place in a stand. The solar oven is rotatable relative to the stand in response to a pushing or pulling force that is applied to a position-control arm attached to the cooking trough whereby the sunlight collector can be correspondingly repositioned to remain in alignment with the sun as it moves across the sky.

Abstract: The present invention relates to, among other items, a concentrating reflector comprising: a reflector reflective to radiant electromagnetic energy and operable to produce a concentration of electromagnetic energy; and a safety member disposed to provide a physical barrier at least partially surrounding a concentration of electromagnetic energy at a focal point or focal zone defined by the reflector, wherein the apparatus is further characterized as having a radiant-energy-absorbing structure of one or more material-processing or food-processing devices positioned in proximity to the focal point or focal zone, for example, a beverage-brewing device such as for brewing coffee or tea; a kernel-popping device such as for popping popcorn, among others. The present invention further discloses collapsible, nesting reflector apparatus, whereby a plurality of the apparatus, when in a collapsed condition, are compactly stackable to facilitate portage and storage.

Abstract: A method, apparatus, and system for a solar-driven chemical plant are disclosed. Some embodiments may include a solar thermal receiver to absorb concentrated solar energy from an array of heliostats and a solar-driven chemical reactor. This chemical reactor may have multiple reactor tubes, in which particles of biomass may be gasified in the presence of a carrier gas in a gasification reaction to produce hydrogen and carbon monoxide products. High heat transfer rates of the walls and tubes may allow the particles of biomass to achieve a high enough temperature necessary for substantial tar destruction and complete gasification of greater than 90 percent of the biomass particles into reaction products including hydrogen and carbon monoxide gas in a very short residence time between a range of 0.01 and 5 seconds.

Abstract: An indoor or outdoor downdraft ventilator moves via an electronic controller through preferably a touch keypad. This provides precise control and an efficient way of removal of gases/fumes off a cook top. The electronically controlled telescoping downdraft creates a nearly infinite and selectable range of heights above a cook top from which to properly collect and draw in, filter, re-circulate, or expel exhaust. The downdraft incorporates a lighting system to illuminate the work surface and sensors to detect temperature, filter change requirements, speed, stop points, power, resistance, voltage, and program med operations.

Abstract: A cooking device is provided which includes a cooking surface, a remote heat collector, and a heat transfer passage. In an example, the heat transfer passage is located adjacent at least a portion of the remote heat collector and extends to a point adjacent at least a portion of the cooking surface.

Abstract: A boiler for generating steam has a substantially enclosed housing configured to contain an amount of water to be boiled, the housing having one or more thermally conductive sidewalls which form a substantially enclosed water chamber and a reflection chamber, the reflection chamber including a closed top portion and a opening through which light rays may pass, the opening being vertically disposed below the top portion of the chamber so that the reflection chamber may trap heat, wherein at least one of the thermally conductive sidewalls is disposed so as to divide the water chamber from the reflection chamber. The boiler also includes a support structure attached to or integral with the housing, which support structure supports the housing in a substantially fixed position during use of the boiler, and reflecting means for reflecting sunlight through the opening of the reflection chamber and onto a focal point on one or more inner surfaces of the top portion of the reflection chamber.

Abstract: An easily transportable solar cooking system that is capable of effectively utilizing available sunlight in locations having obstructed views of the sky. A plurality of support members upon which one or more reflective elements may be mounted, may be independently placed adjacent to an object to be heated. A user may manually adjust the angle of each reflective element, a concave mirror in the preferred embodiment, with respect to the support member so as to reflect a focused beam of light onto the object to be heated. The reflective elements may be mounted via a separable ball and socket joint such that the reflective elements and support members may be disassembled and compactly stored for easy storage and transport.