scholarly journals Small seawater desalination system based on loop heat pipe principle

2019 ◽  
Vol 118 ◽  
pp. 02034
Author(s):  
Yunhui Peng ◽  
Yuanzhou Zheng ◽  
Tongyao Miao ◽  
Peiru Zhou ◽  
Yangshi Shao ◽  
...  
Keyword(s):  
Control System ◽  
Energy Consumption ◽  
Water Resources ◽  
Heat Pipe ◽  
Electric Heating ◽  
Loop Heat Pipe ◽  
Seawater Desalination ◽  
Large Ship ◽  
New Type ◽  
Emergency Equipment

The small seawater desalination system based on loop heat pipe principle by using plate capillary pump technology, a new type of radiator spoiler evaporator and soaking plate finned condenser to realize desktop-class solar seawater desalination system. The Venturi tube principle is used to reduce the internal pressure and energy consumption, and solar photoelectric board with electric heating board function is used to solve problems for areas where there is a shortage of electricity and fresh water resources. Full automatic control system is used to realize the full automatic operation of the equipment.Desktop-class light and small seawater desalination equipment enjoys a broad market prospect. It can not only be used in islands, fishing boats, offshore operating platforms and other complex working scenarios, but also can be used as a large ship freshwater resources emergency equipment.

scholarly journals A small shipborne desalination plant based on the principle of loop heat pipe

2020 ◽  
Vol 165 ◽  
pp. 01003
Author(s):  
Tongyao Miao ◽  
Zheng Fang ◽  
Lingzhi Feng ◽  
Yunhui Peng
Keyword(s):  
Energy Consumption ◽  
Heat Pipe ◽  
Fresh Water ◽  
High Energy ◽  
Loop Heat Pipe ◽  
Seawater Desalination ◽  
Low Energy Consumption ◽  
New Type ◽  
Emergency Equipment ◽  
High Energy Consumption

As is well-known, the problem of fresh water has always been a major problem for ocean navigation. The existing marine seawater desalination equipment generally has the disadvantages of large volume, high energy consumption and easy to pollute the environment. Based on this, we proposed a small seawater desalination system based on phase change to enhance heat transfer, which realized low temperature and low energy consumption by using the loop heat pipe technology, a new type of heat sink type spoiler evaporator and an integrated equal-heat plate fin condenser. The device is suitable for islands, fishing boats and other complicated areas where power is scarce and fresh water resources are scarce. It can also be used as fresh water emergency equipment for large ships, saving energy and being portable.

Experimental Study on a Flat Loop Heat Pipe Coupling the Compensation Chamber and the Condenser

2010 ◽  
Author(s):  
Dong-chuan Mo ◽  
Guan-sheng Zou ◽  
Shu-shen Lu
Keyword(s):  
Heat Transfer ◽  
Heat Pipe ◽  
Temperature Oscillation ◽  
Large Temperature ◽  
Loop Heat Pipe ◽  
Normal Type ◽  
Operation Temperature ◽  
High Efficient ◽  
New Type ◽  
Compensation Chamber

Loop heat pipes are high efficient heat transfer loops/devices. Compared to the typical loop heat pipe with cylinder evaporator, loop heat pipe with flat evaporator (flat loop heat pipe, FLHP) can reduce the thermal resistance between the evaporator and the heat loads. In order to remove the heat leak from the evaporator to the compensation chamber to reduce the operation temperature, a new type of FLHP coupling the compensation chamber and the condenser has been developed. Experiments have been conducted to compare the heat transfer characteristics between the normal type and the new type of FLHP. Part of the heat lead from the evaporator to the compensation chamber can be removed in the new type of FLHP, so it gives better heat transfer performance than the normal one. Results show that, the temperatures in the loop of the new type of FLHP are much more stable than the normal one. The evaporator temperatures and the total thermal resistances of the new type are much lower than those of the normal type. For the normal type of FLHP, it may be failed to start up under low power, and usually the larger temperature oscillation will happen. With the power increasing, the frequency of the oscillation is increasing. When the applied power is large enough, the loop can keep running in the design way, and the large temperature oscillation will disappear.

Control System Design of New Nanoelectric Boiler

2014 ◽  
Vol 620 ◽  
pp. 329-334 ◽  
Author(s):  
Ji Feng Shen ◽  
Han Pin Luo ◽  
Jian Bo Cao ◽  
Rui Kun Wang ◽  
Shi Ju E ◽  
...  
Keyword(s):  
Control System ◽  
Conversion Efficiency ◽  
Physical Stability ◽  
Electric Heating ◽  
Electrical Energy ◽  
Low Carbon ◽  
Large Power ◽  
New Type ◽  
Complete Automation ◽  
The One

Traditional electric heating boilers have disadvantages, such as low purity of the heating resistor, low electric conversion efficiency, poor stability, high acquisition, maintenance costs and so on. This paper, on the one hand, analyzed the basic rationale of the current electric heating boilers, and on the other hand, the advantages of nanomaterials. Based on the combination of the basic rationale and the advantages mentioned above, this paper then designed a new type of electric heating boilers, including the relevant control system, which used nanoelectric membranes as the heating component. This new nanoelectric boiler adopts a brand-new heating method, and it does not get heat by the combustion of chemical energy. On the contrary, the electrical energy is directly converted into heat. This new nanoelectric boiler is equipped with the intelligent control system, and uses computers to realize complete automation. It has excellent physical stability, high electric conversion efficiency and power factor as well as a large power density, and low-carbon environment. Compared with the conventional products of the same electric power, this new type of electric heating boilers can save 30% to 50% of energy. Besides, it is environmental-friendly and functional.

scholarly journals Design and Energy Consumption Analysis of Small Reverse Osmosis Seawater Desalination Equipment

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2275
Author(s):  
Zhuo Wang ◽  
Yanjie Zhang ◽  
Tao Wang ◽  
Bo Zhang ◽  
Hongwen Ma
Keyword(s):  
Energy Consumption ◽  
Water Resources ◽  
Reverse Osmosis ◽  
Specific Energy Consumption ◽  
Membrane System ◽  
Energy Utilization ◽  
Utilization Efficiency ◽  
Small Scale ◽  
Reverse Osmosis Membrane ◽  
Seawater Desalination

The reverse osmosis method has developed extremely rapidly in recent years and has become the most competitive seawater desalination technology in the world, and it has been widely used in all aspects. Large-scale reverse osmosis desalination plants cannot provide fresh water resources in areas with insufficient water resources and limited space. Therefore, this paper proposes a research plan for a small seawater desalination device based on reverse osmosis, which is mainly suitable for handling emergencies, disaster relief, desert areas and outdoor activities and other needs for timely freshwater resources. It mainly includes pretreatment modules, a reaction infiltration module, a post-processing module and an energy supply module. Detailed design calculations are carried out for the small-scale reverse osmosis membrane system, including the selection and quantity and arrangement of membranes. Subsequently, the one-stage two-stage small-scale reverse osmosis membrane system was modeled, and its energy consumption was analyzed theoretically from the perspectives of specific energy consumption and energy utilization efficiency; the main influencing factors were clarified, and the optimal recovery rate for system operation was determined to be 20%–30%. Finally, an experimental prototype was built to conduct relevant experiments to determine the influence trend of pressure, temperature, concentration, and flow rate on the operating performance of the reverse osmosis system.

Operation characteristics of a new-type loop heat pipe (LHP) with wick separated from heating surface in the evaporator

2017 ◽  
Vol 123 ◽  
pp. 1034-1041 ◽  
Author(s):  
Kai Zhu ◽  
Xiaoqing Chen ◽  
Baomin Dai ◽  
Mingzhu Zheng ◽  
Yabo Wang ◽  
...  
Keyword(s):  
Heat Pipe ◽  
Heating Surface ◽  
Loop Heat Pipe ◽  
New Type ◽  
Operation Characteristics
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