11 results about "Solar desalination" patented technology

The invention provides a solar seawater desalination photothermal conversion efficiency optimization method and system based on machine learning, and the method comprises the steps: firstly collecting the solar spectrum distribution data, seawater turbidity spectrum data, real-time heat flow data and semiconductor nanomaterial data of a target sea area; and constructing a material spectrum mapping library based on the light absorption characteristics of the nano material. Through coupling analysis of a solar spectrum and a seawater turbidity spectrum, an environmental constraint condition is formed, a Bayesian optimization model is combined with a material spectrum mapping library and real-time heat flow data, and an optimal nano material mixing ratio is generated under environmental constraint. Then, the interface evaporation rate is predicted through the deep residual network, an optimal material morphology configuration scheme is obtained, and finally the morphology configuration is applied to semiconductor nanomaterial preparation. The photo-thermal conversion efficiency of the solar desalination system in the high-turbidity seawater environment is improved.

This application provides a machine learning-based method and system for optimizing the photothermal conversion efficiency of solar desalination in seawater. The method includes: firstly, collecting solar spectral distribution data, seawater turbidity spectral data, real-time heat flow data, and semiconductor nanomaterial data for the target sea area; and constructing a material spectral mapping library based on the light absorption characteristics of the nanomaterials. By coupling analysis of the solar spectrum and seawater turbidity spectrum to form environmental constraints, a Bayesian optimization model is used in conjunction with the material spectral mapping library and real-time heat flow data to generate the optimal nanomaterial mixing ratio under these constraints. Subsequently, a deep residual network is used to predict the interfacial evaporation rate and obtain the optimal material morphology configuration scheme, which is finally applied to the preparation of semiconductor nanomaterials. This application improves the photothermal conversion efficiency of solar desalination systems in high-turbidity seawater environments.

The invention belongs to the technical field of photo-thermal materials, and particularly relates to a coal-based carbon material with a hierarchical pore structure as well as a preparation method and application of the coal-based carbon material. The addition of CMC promotes the material to form a hierarchical pore structure with three-peak pore size distribution, and the obtained coal-based carbon material shows excellent hydrophilicity, strong light absorption and rapid water delivery capacity. In a 3.5 wt% NaCl solution, the evaporation rate of the coal-based carbon containing 35 wt% of CMC under illumination of one sun reaches 2.66 kg m <-2 > h <-1 >, and the evaporation efficiency is 99.87%. Even in a high-salt environment (20wt% of NaCl solution), the evaporation rate can still reach 1.58 kg m <-2 > h <-1 >. In addition, a long-term test shows that the hierarchical pore structure has excellent structural stability and photo-thermal stability. And the preparation method is simple, convenient, economical and environment-friendly, and a new material with a wide prospect is developed for an efficient solar desalination and water purification technology.

The invention belongs to the technical field of waste wood chip derived carbon, and particularly relates to a wood-based porous carbon solar evaporator and a preparation method. The solar evaporator provided by the invention is mainly prepared from pine sawdust and carboxymethyl cellulose (CMC), and the material has excellent hydrophilicity, strong light absorption and rapid water delivery capacity. The evaporation rate under irradiation of one sun reaches 3.41 kg m <-2 > h <-1 >, and the evaporation efficiency is 93.49%. Even in a high-salt environment (20 wt% of NaCl solution), the evaporation rate can still reach 2.83 kg m <-2 > h <-1 >. Good evaporation performance is maintained in a high-salt environment, and excellent self-cleaning capability and long-term operation stability are achieved. And the preparation method is simple, convenient, economical and environment-friendly, and a new material with a wide prospect is developed for an efficient solar desalination and water purification technology.

MULTI-EFFECT SOLAR DESALINATION DEVICE

This solar evaporator comprises: a membrane which includes an inlet part immersed in seawater, and through which the seawater spreads from the inlet part so as to move in one direction; and a photothermal part for evaporating the seawater moving from the membrane. This solar desalination apparatus comprises: a water tank, which has an open top and accommodates the seawater; the solar evaporator, which is mounted on the top of the water tank and evaporates the seawater; and a collection part for collecting moisture evaporated from the solar evaporator, and covering the top of the water tank.

This invention relates to the field of solar desalination technology, specifically to a biomass / MXene composite aerogel, its preparation method, and its applications. By introducing sodium lignosulfonate, this invention significantly enhances the oxidative stability of MXene under exposure to air, light, humidity, and heat. First, sodium lignosulfonate adsorbs onto the MXene surface to form a protective layer, preventing MXene from contacting reactive oxygen species. Second, it contains abundant aromatic rings, sulfonic acid groups, phenolic hydroxyl groups, and aliphatic hydroxyl groups. These functional groups interact with oxygen-containing, fluorine-containing, and defective Ti sites on the MXene surface through hydrogen bonding, electrostatic interactions, and π-Ti interactions, passivating defect sites on the MXene surface and edges. Furthermore, the strong antioxidant activity of the phenolic hydroxyl groups and ortho-methoxy groups in sodium lignosulfonate preferentially scavenges oxygen species and free radicals, thereby preventing their attack on the Ti-C bonds in MXene.

WICK INTEGRATED SINGLE FACE SOLAR DESALINATION DEVICE

This invention discloses a hybrid system for supercritical solar desalination with zero emissions and steam turbine power generation. The system comprises a solar concentrator connected to a heat exchanger; the brine inlet of the heat exchanger connected to the brine outlet of condenser one, and the brine outlet connected to the inlet of a steam-water separator; the high-temperature steam outlet of the steam-water separator connected to the high-temperature steam inlet of the steam turbine generator set; the low-temperature steam outlet of the steam turbine generator set connected to the low-temperature steam inlet of condenser two; the high-concentration brine outlet of the steam-water separator connected to the high-concentration brine inlet of a flash evaporator; the low-temperature steam outlet of the flash evaporator connected to the low-temperature steam inlet of condenser one; the outlet of drive pump one connected to the cooling water inlet of condenser two; and the cooling water outlet of condenser two connected to the brine inlet of condenser one. This hybrid system is characterized by high efficiency, environmental friendliness, sustainability, and zero liquid discharge.

A desalination and brine treatment apparatus (100) includes a support (120) and at least one evaporator component (122) in contact with the support (120), wherein one or more of the support (120) and the evaporator component (122) include mesh (150). Methods of desalination and brine treatment are provided for removing salt (196) from saltwater (102) utilizing energy such as solar energy (104).

The "SYSTEM" comprises of four integrated DEVICES; each DEVICE has a different function, purpose and objective to achieve: wherein combined use of "WIND" and "SOLAR" Energy is most effective and productive, as per below: 1) "WIND POWER BOOSTER" is the first DEVICE - Figure 1 Page I of VI has TWO COMPONENTS, viz: a) "SHROUDED FUNNEL Booster" boosts Wind / Air Flow in Funnel. and: b) has an inbuilt contraption that increases velocity pressure of incoming Wind / Air intake by mean of VORTEX formation — induces VACCUM and causes SUCTION effect therein, it activates and energizes the second integrated Focal Gadget (EJECTOR) that stimulates remaining two DEVICES of "VVIND cum SOLAR -WATER DESALINATION SYSTEM" 2) “EJECTOR" is System's second but FOCAL DEVICE - Figure 2 Page II of VI; it integrates the three DEVICES of the DESALINATION System: is activated and energized by the Energy induced by the first DEVICE - "WIND POWER BOOSTER" also has an inbuilt contraption that activates the whole System: joins "WIND POWER BOOSTER" at an INLET to be activated / energized; joins the other two DEVICES. viz: "EVAPORATOR cum SOLAR HEATER" at SUCTION end, of the FOCAL DEVICE, and "CONDENSER" at EJECTION end of the FOCAL DEVICE. 3) "EVAPORATOR cum SOLAR HEATER" is third but pivotal DEVICE of DESALINATION PROCESS -Figure 3 / a & 3 / b Page lll of VI: in combination of "WIND ENERGY" (increases AIR relative humidity), and "SOLAR ENERGY" (increases water vapour formation) accomplishes DESALINATION PROCESS" {integrates principles of; a) Heat Exchanger: b) Evaporation through Water Air Cooling effect, and; c) Solar Heated BRINE}, 4) "CONDENSER" is fourth DEVICE of the System - Figure 4 Page IV of VI: through MIST cooling - instantly reduces temperature much below DEW Point to CONDENSE the CONDENSATE from the "EVAPORATOR CUM SOLAR HEATER" "WIND" like "SOLAR" is sustainable: combination of the two sustainable "RENEWAL ENERGIES"; "WIND CUM SOLAR"; can solve exploding energy costs and inefficient energy utilization in conventional Systems of sea water / brackish water Desalination; is devoid of Greenhouse Gas Emissions.