Inhoudsopgave
Voordelen van de geleidbaarheid van zirkoniumoxide bij toepassingen bij hoge temperaturen
Hoe de geleidbaarheid van zirkoniumoxide de efficiëntie van vaste-oxidebrandstofcellen verbetert
De geleidbaarheid van zirkoniumoxide speelt een cruciale rol bij het verbeteren van de efficiëntie in vaste-oxidebrandstofcellen (SOFC’s). Vaste-oxidebrandstofcellen zijn een veelbelovende technologie voor de productie van schone energie, omdat ze chemische energie efficiënt kunnen omzetten in elektrische energie. Zirkoniumoxide, een soort keramisch materiaal, wordt vaak gebruikt als elektrolyt in SOFC’s vanwege de hoge ionische geleidbaarheid bij hoge temperaturen.
Productnaam
PH/ORP-6900 pH/ORP-zendercontroller
| Meetparameter | Meetbereik | ||
| Resolutieverhouding | Nauwkeurigheid | pH | 0,00\\\～14,00 |
| \\\±0.1 | ORP | 0.01 | \\\（-1999\\\～+1999\\\）mV |
| 1mV | \\\±5mV(elektrische meter) | Temperatuur | \\\（0.0\\\～100.0\\\）\\\℃ |
| 0,1\\\℃ | \\\±0.5\\\℃ | Temperatuurbereik van geteste oplossing | \\\（0.0\\\～100.0\\\）\\\℃ |
| Temperatuurcomponent | Pt1000 thermisch element | ||
| \\\（4~20\\\）mA Stroomuitgang | Kanaalnr. | ||
| 2 kanalen | Technische kenmerken | Geïsoleerd, volledig instelbaar, omgekeerd, configureerbaar, dubbele modus voor instrument/zenden | |
| Lusweerstand | 400\\\Ω\\\（Max\\\）\\\，DC 24V | ||
| Transmissienauwkeurigheid | \\\±0.1mA | ||
| Stuurcontact1 | Kanaalnummer | ||
| 2 kanalen | Elektrisch contact | Halfgeleider foto-elektrische schakelaar | |
| Programmeerbaar | Elk kanaal kan worden geprogrammeerd en wijzen naar (temperatuur, pH/ORP, tijd) | ||
| Technische kenmerken | Voorinstelling van normaal open / normaal gesloten status / puls /PID-regeling | ||
| Laadvermogen | 50mA\\\（Max\\\）AC/DC 30V | ||
| Controlecontact2 | Kanaalnr. | ||
| 1 Kanaal | Elektrisch contact | Relais | |
| Programmeerbaar | Elk kanaal kan worden geprogrammeerd en wijzen naar (temperatuur, pH/ORP) | ||
| Technische kenmerken | Voorinstelling van normaal open / normaal gesloten status / puls /PID-regeling | ||
| Laadvermogen | 3AAC277V / 3A DC30V | ||
| Datacommunicatie | RS485, MODBUS standaardprotocol | ||
| Werkende voeding | AC220V\\\±10 procent | ||
| Algemeen stroomverbruik | 9W | ||
| Werkomgeving | Temperatuur: (0~50) \\\℃ Relatieve vochtigheid: \\\≤ 85 procent (niet-condenserend) | ||
| Opslagomgeving | Temperatuur: (-20~60) C Relatieve vochtigheid: \\\≤ 85 procent (niet-condenserend) | ||
| Beschermingsniveau | IP65 | ||
| Vormgrootte | 220 mm\\\×165mm\\\×60mm (H\\\×W\\\×D) | ||
| Vaste modus | Muurophangtype | ||
| EMC | Niveau 3 | ||
| Level 3 | |||
One of the key advantages of zirconia conductivity is its ability to conduct oxygen ions at high temperatures. This is essential for the operation of SOFCs, as oxygen ions need to migrate through the electrolyte to the cathode where they react with fuel to produce electricity. Zirconia’s high ionic conductivity allows for efficient transport of oxygen ions, resulting in high cell performance and overall efficiency.
In addition to its high ionic conductivity, zirconia also exhibits excellent chemical stability and mechanical strength. This makes it an ideal material for use in SOFCs, where it is exposed to harsh operating conditions such as high temperatures and corrosive environments. Zirconia’s stability and strength ensure the long-term reliability and durability of SOFCs, leading to extended operational lifetimes and reduced maintenance costs.
Furthermore, zirconia conductivity can be further enhanced through the addition of dopants or by optimizing the microstructure of the material. By carefully controlling the composition and structure of zirconia, researchers can improve its ionic conductivity and overall performance in SOFCs. This ongoing research and development efforts are aimed at pushing the boundaries of zirconia conductivity and unlocking even greater efficiency in SOFC technology.
Another important aspect of zirconia conductivity is its impact on the overall efficiency of SOFCs. High ionic conductivity in the electrolyte allows for lower operating temperatures, which in turn reduces energy losses and improves the overall efficiency of the fuel cell. By maximizing zirconia conductivity, researchers can achieve higher power output and lower fuel consumption, making SOFCs a more cost-effective and sustainable energy solution.
Moreover, zirconia conductivity also plays a role in reducing the thermal gradients within SOFCs. By efficiently conducting oxygen ions through the electrolyte, zirconia helps to distribute heat evenly across the cell, preventing hot spots and thermal stress. This thermal management is crucial for maintaining the structural integrity of the fuel cell and ensuring long-term reliability.
In conclusion, zirconia conductivity is a key factor in enhancing efficiency in solid Oxide fuel cells. Its high ionic conductivity, chemical stability, and mechanical strength make it an ideal material for use as an electrolyte in SOFCs. By optimizing zirconia conductivity through dopants and microstructure design, researchers can further improve the performance and efficiency of SOFC technology. With ongoing advancements in zirconia conductivity, solid oxide fuel cells continue to hold great promise as a clean and sustainable energy solution for the future.
