1452 results about "Solar water heating" patented technology

An HVAC control system is described comprising: a server (32) having planned information, a man-machine interface (50) capable of communication with the server (32) to provide dynamic information about building occupancy based on a change in cold water in a mains riser. A central control unit (28) which can communicate with the server (32), and a room node (22, 24) for providing information about conditions within the room whereby, the information about room conditions is compared to planned information and / or dynamic information and adjustments made accordingly. The room node (22, 24) may comprise sensors (276, 278, 272, 274) which provide information about conditions in the room. Dynamic information can include changes to planned occupancy, the effect of solar heating and weather conditions. Changes to planned occupancy can be established through detecting location (internally or externally) or destination of a user; and calculating estimated time of arrival of a user.

A sealed well direct expansion geothermal heat exchange unit, whose sealed well can be placed in ground and / or in water, consisting of a conventional direct expansion, or other heat pump, system wherein the exterior refrigerant heat exchange lines are placed within an insulated and sealed container, which container is supplied with a circulating heat conductive liquid from and to a sub-surface sealed well encasement, which container liquid may be supplemented with heat from a solar heating system, and which unit's hot refrigerant vapor line may be supplementary cooled by means of condensate water evaporative cooling, as well as a means to provide any direct expansion, and any closed-loop water-source, geothermal heat pump system with an optional solar heating supplement in the heating mode, and with an optional water-cooled vapor line supplement in the cooling mode.

The cabin cooling system includes a cooling duct positioned proximate and above upper edges of one or more windows of a vehicle to exhaust hot air as the air is heated by inner surfaces of the windows and forms thin boundary layers of heated air adjacent the heated windows. The cabin cooling system includes at least one fan to draw the hot air into the cooling duct at a flow rate that captures the hot air in the boundary layer without capturing a significant portion of the cooler cabin interior air and to discharge the hot air at a point outside the vehicle cabin, such as the vehicle trunk. In a preferred embodiment, the cooling duct has a cross-sectional area that gradually increases from a distal point to a proximal point to the fan inlet to develop a substantially uniform pressure drop along the length of the cooling duct. Correspondingly, this cross-sectional configuration develops a uniform suction pressure and uniform flow rate at the upper edge of the window to capture the hot air in the boundary layer adjacent each window.

The present disclosure provides an integrated power generating system and method that combines combustion power generation with solar heating. Specifically, a closed cycle combustion system utilizing a carbon dioxide working fluid can be increased in efficiency by passing at least a portion of a carbon dioxide working fluid through a solar heater prior to passage through a combustor.

The absorber pipe (1), especially for a parabolic collector for a solar heat collecting apparatus, is described. The absorber pipe (1) includes central metal pipe (3), a glass sleeve tube (2) surrounding the nine so that an annular space (4) is formed between them and an expansion compensating device connecting the central metal nine and a glass-metal transitional element (5) on a free end of the sleeve tube (2). The expansion compensation device (10) connects the metal pipe and sleeve tube, so that they can slide relative to each other, and includes folding bellows (11) for that purpose. Furthermore it also includes a connecting element (15), which has either a cylindrical or a conical section (17,18,18″) and which connects an interior end of the folding bellows with the metal pipe.

A tubular radiation absorbing device (1) designed for a solar heating application is described. The tubular radiation absorbing device has a metal central tube (3) and a glass tubular jacket (2) surrounding the central tube (3). A folding bellows (11) is connected between the central tube (3) and the tubular jacket (2), so that the tubular jacket and the central tube are movable relative to each other. A connecting element (20) connects an inner end of the folding bellows (11) with the central tube (3) and extends from the inner end of the folding bellows (11) through an inner annular space (30) between the folding bellows (11) and the central tube (3). The connecting element includes at least a part of a hydrogen window (50). A getter (6) is arranged in an outer annular space (33) between the folding bellows (11) and the tubular jacket (2).

The invention discloses a bulk curer heat supply and ventilation system supplied by combined solar energy-air source heat pump double heat sources, which consists of a solar water heating subsystem, an air source heat pump water heating subsystem, an air-water heat exchanger, a frequency conversion circulating water pump, a heat insulating hot water pipeline, a main controller, a circulating fan, an air supply pipe, a fresh air valve and a curer wet air outlet. A condenser of the air source heat pump water heating subsystem is arranged in a heat accumulating water tank; the air source heat pump water heating subsystem is coupled with the solar water heating subsystem through the heat accumulating water tank; and the air source heat pump water heating subsystem adopts a CO2 high temperature refrigerant to prepare high temperature hot water between 85 and 90DEG C. The bulk curer heat supply and ventilation system adopts the solar water heating system and the air source heat pump water heating system, which are combined to operate, to supply heat to the curer, fully utilizes the clean solar energy and low-grade heat energy in the atmosphere, has the advantages of energy conservation, environmental protection and the like, and can realize loss minimization and value addition in the process of curing tobacco leaves.

A system for heating water includes a first tank, a solar panel, a control circuit, and a second tank for receiving water from the first tank. There is a first resistive heating element in the first tank and a second resistive heating element in the second tank. The control circuit couples power from the solar panel to the second resistive heating element unless the water in the second tank is at a preset maximum temperature, then the control circuit couples power to the first resistive heating element. If the water in the second tank is below a preset maximum temperature and above a preset minimum temperature, then the control circuit couples power from the solar panel to both the first heater element and the second heater element. If the temperature of the water in the second tank is below a preset minimum temperature, then the control circuit turns on conventional heating means in the second tank. Water is withdrawn from the second tank for use.

An installation for generating electrical energy from solar energy, includes:a hot source (2),a cold source (4),a heat machine (5) for producing electricity using the hot source (2) and the cold source (4);the hot source (2) including:elements (6) for heating a first heat-exchange fluid (8) using solar energy,elements (10) for storing thermal energy,a first transport circuit (12) for the first heat-exchange fluid (8) connecting the heating elements (6), the storage means (10) and the heat machine (5) for producing electricity; the cold source (4) including a second transport circuit (46) for a second heat-exchange fluid (48); wherein the storage elements (10) use the latent fusion heat of a phase change material (18).

The present invention relates generally to an easy-to-assemble building structure with a mountable frame for mounting solar panels, solar water heating panels, fuel cells or any other renewable energy device and more particularly relates to a gazebo or a storage space or an overhang used for purposes of mounting solar panels.

An air freshener apparatus to atomize and diffuse liquids or suspensions into a mist by means of conversion of collected solar energy into thermal radiation passed through a wire for optionally heating said liquids and conversion of solar energy into electrical energy stored in batteries and used for subsequent atomization of said optionally heated liquids by means of piezoelectric ultrasonic vibrations. In one embodiment, the resulting mist and fragranced aromas of atomized liquids or suspensions are communicated through housing vent openings to an external environment such as a room or an automobile. In an alternative embodiment, additional diffusion of said atomized liquids and associated fragranced aromas is achieved by means of connecting the present invention, with its attachable clip, to the louvers of a building's or an automobile's ventilation system that, when blowing air, provides additional diffusion of fragrance into the air inside of a building or an automobile.

A solar photovoltaic water heating system is disclosed having a photovoltaic solar panel array, a storage tank containing water to be heated, a resistance heating element in the water to be heated. The water heating system matches the load resistance of the resistance heating element to the power that is available from the photovoltaic solar panel array in order to maximum energy transferred to the water in the storage tank.

A desalination plant, includes a sea water intake, a desalination unit having a reverse osmosis or a thermal desalination unit, a fresh water outlet and a brine outlet. The plant also includes a salinity gradient power unit having a brine inlet, a seawater inlet and a mixed water outlet. The brine outlet is connected to the brine inlet and the salinity gradient power unit is arranged to generate an electrical current. A solar power heater is between the brine outlet and the brine inlet. A method for reducing the power consumption of a desalination plant providing fresh water and brine from sea water, includes a first step of providing a salinity gradient power unit, a next step of feeding the salinity gradient power unit with brine from the desalination plant as high salinity feed and sea water as low salinity feed. A subsequent step heats the brine with solar power prior to feeding the brine to the salinity gradient power unit, followed by the steps of generating an electrical current in the salinity gradient power unit and using the electrical current as an energy source for the desalination plant.

The solar heating, distilling, and pasteurizing system of this invention comprises an integrated distillation column-reflector-bracket assembly, a heat storage system of composite construction, and at least one evacuated glass solar collector having selective absorption. The distillation column subassembly is filled with the fluid medium to be boiled which flows into the solar vacuum tube collectors where an evaporation process takes place. A float valve mechanism mounted to the frame automatically maintains the correct liquid level inside the distillation column. The height of float valve mechanism is adjustable by means of an adjustable float bracket. The distillation column subassembly collects and concentrates the steam or vapor generated inside the attached evacuated glass solar collector tubes. The column also separates the vapor from the boiling liquid medium and conducts the vapor into a heat and distilled fluid storage system. The reflector-bracket subassembly has a reflecting panel made from at least one sheet of reflective material typically flat or formed into a plurality of substantially parallel linear troughs shaped to concentrate solar radiation ideally. This reflector also acts as a means of further stress and strain distribution and dissipation into the structural elements of the bracket subassembly.

A solar heating system for use in combination with a forced draft heating system for heating ventilation air of a building. The solar heating system includes a solar collector assembly for heating a liquid circulated through the assembly. The heated liquid is stored in an insulated storage tank where it can be circulated through a heat exchanger positioned in an air duct of the forced draft heating system as need to heat air flow through the duct. The use of a liquid as the heat transfer fluid and providing a storage facility for heated liquid permits the heating system to operate for a period of time after the sun sets or becomes ineffective in providing solar radiation until the heat stored in the liquid becomes exhausted. To increase the heat storage capacity of the liquid, one or more heat sinks can be utilized to absorb excess heat from the liquid and then transfer the absorbed heat back to the liquid when an opposite thermal gradient exists. Additionally, the heating system can recover waste heat from hot combustion gases exhausted from a fuel-fired forced draft heating system.

Solar water heating systems that are formed as all-in-one kits that include all the components necessary for assembling the solar water heating systems at a chosen site is disclosed. Depending on the desired system, the kit may for example include a solar collector, one or more supplemental storage tanks, pumps, heat exchangers, valves, fittings, piping, timers, insulation, flashings, hose bibs, supports, brackets, fasteners, sealants and / or the like. In fact, the kit may further include all or some of the necessary tools required to assemble the solar water heating system.

An electrically-heated shape-fixed phase-change heat-accumulating material for heating indoor air is prepared from paraffin wax, polyolefin, thermoplastic elastomer and inorganic filler and has the 30-40 deg.C of phase change temp. The solar one is prepared from the paraffin wax whose number of carbon atoms is 16-20, polyolefin, thermoplastic elastomer and inorganic filler and has the 17-25 deg.Cof phase change temp. Their preparing process is also disclosed.

Systems and methods of integrating solar energy into a Rankine cycle power generation system can enhance efficiency of the system. Solar heat can be collected in an array of solar heat collectors. The solar heat collectors can use solar energy to heat a single phase thermal transfer fluid, which can be circulated in a solar heat system. The solar heat system includes a closed loop working fluid heater fluidly coupled to the solar heat collectors that transfers heat energy from the thermal transfer fluid to a working fluid of the power generation system. Thus, the working fluid is preheated before it enters the boiler of the power generation system. The solar working fluid heater can be connected in a regeneration portion of the Rankine cycle downstream of other working fluid heaters, or upstream of at least one working fluid heater. The solar heat input can reduce the fuel consumption of the boiler.

The hybrid solar air-conditioning system includes an air intake having an air drying system that uses a liquid desiccant to dry ambient air, a desiccant regeneration system that uses a heat exchanger having oil heated by solar energy to remove water from the desiccant, an indirect evaporative air conditioner that uses an air-air heat exchanger to cool the dried air indirectly with evaporatively cooled air, a distilled water recovery system to recover water from the desiccant and from the evaporatively cooled air in the form of distilled water, and a microprocessor-based controller to control room temperature and relative humidity, and to regulate air intake and the flow of desiccant and oil in the system. The hybrid system enables the use of evaporative cooling in regions having high humidity.

A system for providing supplemental or auxiliary heat to a crude oil separator is provided. The system includes a primary circuit carrying a fluid heated by a solar panel and a secondary circuit carrying a fluid heated by heat exchangers engaged with the primary circuit. The secondary circuit includes heat exchangers engaging the separator to provide auxiliary heat. The system may also include a source of off-grid electrical energy, such as a wind turbine and / or photoelectric cell.

A self-regulating solar-heated-and-cooled greenhouse consisting of a thermally-insulated opaque shell, generally formed by a floor supporting east, north, and west-oriented walls supporting a northerly-facing sloping roof, leaving the southern exposure of said shell “open”, said shell incorporating means of regulating the admission or expulsion of air to the greenhouse. Said “open” south face to be sealed-over by a solar energy collecting system comprised of two parallel light-admitting curtain-wall systems, generally vertical in orientation and planar in configuration, with a space between said wall systems forming an enhanced thermal break and of sufficient distance so as to effect periodic maintenance, and incorporating means of regulating admission or expulsion of air to the greenhouse. Said greenhouse further incorporating means of directing excess thermal energy collected during daylight hours into appropriate storage systems either within or without the confines of said greenhouse, and further incorporating means of providing insulation for the south-facing solar-wall systems at night or during inclement weather.

A solar energy power generator comprises a solar energy heating device for absorbing solar energy for heating medium flowing therethrough; a secondary heating device for further heating medium flowing through the solar energy heating device so as to generate air convection; and a power generator for generating electric power by air convection for driving a load. The solar energy heating device and the secondary heating device heat air so that air convection generates in the hot air convection space so as to drive the power generator to generate electric power for driving a load.

The invention discloses a method and a device for seawater desalination by comprehensively using solar energy. The device comprises a solar energy heat collector, a bubble evaporator, an air distributor, an induced fan, a condensing heat regenerator, a heat exchanging pipe, an air pump, a solar panel, a main controller, a salt water tank, a desalted water, four electromagnetic valves and three centrifugal pumps, wherein the solar energy heat collector absorbs the solar energy heating closed circulating water which enters the heat exchanging pipe to exchange heat with the seawater inside the bubble evaporator; wet gas is introduced into the bottom of the bubble evaporator by the air pump, the gas passes through high temperature seawater in the form of small bubbles from top to bottom through the air distributor, the temperature of air is increased, and the relative humidity is increased; the induced fan discharges high humidity air and forms negative pressure at the upper part of the liquid surface so that the partial pressure of the liquid phase is reduced; the high humidity air is discharged and enters the condensing heat regenerator to exchange heat with the low-temperature seawater, the water vapor forms desalted water after condensed, the air enters the bubble evaporator through the air pump, and the cold seawater absorbs the heat of the high humidity air and enters the bubble evaporator. The device has simple structure, saves energy and protects the environment.

The invention discloses a composting device for domestic waste, which comprises a sealed casing and a feeding inlet provided with the casing. A composting chamber communicating with the feeding inlet is provided inside the casing, and a discharging opening is provided with the composting chamber. A ventilated spiral agitation propeller is provided inside the composting chamber while a water bath below the composting chamber. A heating device is connected with the water bath. The composting device can provide heat for the fermentation of organic domestic waste such as kitchen garbage in the composting chamber to build out the environment benefit for microbe activities, thereby increasing the fermentation speed of organic domestic waste and the utilization rate of heat energy. Meanwhile, solar heating reduces the consumption of conventional energy and is environmental protection. A secondary composting chamber is arranged below the composting chamber, which greatly shortens the longitudinal length of the whole composting apparatus and further saves the occupation area for composting operations, thereby further increasing the composting fermentation degree and reducing workload.

A sign frame having a rigid structure, the frame of which contains a mounting collar attached to a heat pipe extending vertically from the center of the lower horizontal member of the sign frame. An integrated solar heating means within the luminaire of the sign, and a means for timing the release of the stored heat to the fluorescent bulbs is provided. The internal illumination means for the sign includes a flexible vinyl sign face stretched over a the sign cabinet's rigid frame over, in which the flexible vinyl sign face material has sewn hems on all edges with inserted rigid rods and tension springs extended through the hems and hooked to the rods. The invention also provides a control method for determining the run time for loads utilizing solar power.

The invention discloses a wind and solar hybrid energy storage and power generation integration system and process. The system comprises a wind power generation subsystem, a solar energy storage subsystem, a liquefied air subsystem and a power subsystem. The process comprises the following steps: solar energy is gathered by a thermal collector to obtain heat energy, the heat energy is stored in heat storge medium; wind energy is converted to electric energy, the wind power is used to liquefy air and stored in the liquefied air; and when electricity is required, the liquefied air is pressurized to recycle cold energy for the air liquefying process, then the air is heated by the high temperature heat storge medium which stores solar energy to obtain high temperature and high pressure air, and finally the air is sent to a multistage reheating turbine to expand and do work. The system of the invention recycles the cold energy of the liquefied air to reduce the wasted work for air liquefying; a pump is used to increase the pressure of the working medium, thus reducing the wasted work for compressing the working medium; the turbine utilizes recycled heat for exhaustm, thus effectively utilizing heat energy; solar energy is utilized to heat the working medium at the inlet of the turbine, thus increasing the expansion efficiency of the turbine; and wind energy and solar energy can be utilized for complementation, energy storage and power generation can be integrated and the system of the invention has wide application prospect.

The invention relates to a mud drying system and a use method thereof. The mud drying system comprises a transcritical heat pump auxiliary heat supplying loop, a heat pump auxiliary heat supplying loop, an air heating and waste heat recovering loop and a hot water circulation loop; the transcritical heat pump auxiliary heat supplying loop comprises an evaporator, an internal heat exchanger, a compressor, a gas cooler and a throttle valve; the heat pump auxiliary heat supplying loop comprises an evaporator, a wastewater and waste heat recovering evaporator, an internal heat exchanger, a compressor, a condenser, a throttle valve, two stop valves and a wastewater tank; the air heating and waste heat recovering loop comprises a hothouse, an air compressor, a gas discharging and carrying port, a first evaporator, the other evaporator and a condenser; and the hot water circulation loop comprises a pump, a hothouse and the condenser in the heat pump auxiliary heat supplying loop. The invention adopts the hothouses to obtain solar energy to heat mud and utilizes the transcritical heat pump auxiliary heat supplying loop and the heat pump auxiliary heat supplying loop to recover the sensible heat and the latent heat in humid air to heat mud, thereby lowering the energy consumption for drying the mud. The invention can be widely applied to various mud processing fields.

An aqueous liquid passivate composition for treating metal surfaces having dispersed therein solid particles which result in a transparent or translucent, preferably colorless, corrosion resistant coating, upon drying of the aqueous liquid passivate composition, the coating providing better resistance to heating by solar energy than the untreated metal surface at lower coating thicknesses than paint.