Xi'an Jiaotong University

Zhiguo Qu

Qiang Wang

Di Tian

Zhiyuan Jiang

Jiajia Zhang

Jianfei Zhang

Jiaqi Pu

A cyclical salinity-gradient power generating system based on phase change materials and solar photothermal conversion is provided. The system comprises a solution supplying device, a power generating device and a power output device. The solution supplying device provides seawater with high and low concentration as salinity-gradient energy source of the power generating device; the power generating device implements day-and-night cyclical salinity-gradient power generation; the power output device stores electricity, part of which is used as providing power for the pumps inside the system and part of which is used as system output. A cyclical salinity-gradient power generating method based on phase change materials and solar photothermal conversion is also provided.

Cyclical salinity-gradient power generating system and method based on phase change materials and solar photothermal conversion

Disclosed are a solar energy-salinity gradient energy synergistic power generation system and method by using concentrating beam splitting and waste heat recovery. A concentrating beam splitting photovoltaic power generation unit includes a light mirror, a liquid splitter, a bifacial solar cell, and a waste heat collecting tube; a waste heat recovery unit includes a multi-stage phase-change heat reservoir and a heat exchanger; a salinity gradient power generation unit includes first and second chambers, an ion-selective membrane, first and second electrodes; an electricity storage and control unit includes a battery pack and an inverter; and a water supply unit includes a seawater tank and a river water tank. The bifacial solar cell is used for concentrating beam splitting photovoltaic power generation, nanoparticle-containing seawater and nanoparticle-containing river water flow through the splitter for beam splitting and heating themselves, and the multi-stage phase-change heat reservoir collects heat of the splitter.

Solar energy-salinity gradient energy synergistic power generation system and method by using concentrating beam splitting and waste heat recovery

A system and method for treating flue gas of a boiler based on solar energy are provided, wherein a heat pump is connected with a heat collector via first and second valves, a carbon dioxide electrolysis chamber is connected with a flue gas pretreatment chamber and a power distribution control module for electrolyzing and reducing carbon dioxide, a gas phase separation chamber is connected with a gas phase outlet to separate a mixture, and discharge the separated gas phase products; a Fischer-Tropsch reaction chamber is connected with the gas phase separation chamber to pass the separated carbon monoxide and hydrogen into a flowing reaction cell, a liquid phase product separation chamber is connected with a liquid phase outlet to separate the liquid phase hydrocarbon fuel products, and separate and supplement electrolyte; an electrolyte cooling circulation chamber is connected with the liquid phase product separation chamber.

System and method for treating flue gas of boiler based on solar energy

Solar electroosmosis power generation devices and methods thereof are disclosed. In some embodiments, a first electrode in transparent inorganic electrolyte solution is provided in a first temperature chamber including a first light-transmitting wall. A second electrode in transparent inorganic electrolyte solution is provided in a second temperature chamber including a second light-tight wall. The first and second temperature chambers are connected by a cation nano-film with nanoparticles on its surface close to the first temperature chamber. An external circuit connects the first and second electrodes. When the nano-film is irradiated through the first wall by sunlight, the temperature of the first temperature chamber is higher than that of the second temperature chamber. In some embodiments, the solar electroosmosis power generation device improves solar energy utilization efficiency, and can be used in the field of solar light-heat-electric conversion.

Solar electroosmosis power generation device

In a solar water taking and power generating device, a concentrating-cooling plate encloses the opening, and at least one freshwater collecting channel is formed between the seawater tank and the concentrating-cooling plate; a cation exchange membrane includes a semiconductor film body, nanoparticles, and a capillary water-transporting conduit, wherein the semiconductor film body is provided with cation-selective channels; sunlight illuminates the cation exchange membrane and the nanoparticles through the concentrating-cooling plate, so that the first temperature, the first seawater concentration and the first electric potential in the first side are higher than those in the second side, respectively. The evaporated seawater enters the freshwater tank after condensed, and the cations transfer from the first side to the second side to form an ionic current.

Growing community of inventors

Shaanxi, China

Zhiguo Qu