इलेक्ट्रिक-आर्क-भट्टी (ईएएफ) क्या है?
ऐतिहासिक पृष्ठभूमि
मुख्य प्रावधान
8 points- 1.
स्क्रैप धातु को पिघलाने और स्टील का उत्पादन करने के लिए बिजली का उपयोग करता है।
- 2.
पारंपरिक ब्लास्ट फर्नेस की तुलना में अधिक ऊर्जा-कुशल।
- 3.
ब्लास्ट फर्नेस की तुलना में कम ग्रीनहाउस गैस उत्सर्जन का उत्पादन करता है।
- 4.
बिजली की विश्वसनीय आपूर्ति की आवश्यकता है।
- 5.
स्क्रैप धातु की उपलब्धता पर निर्भर।
- 6.
स्टील ग्रेड की एक विस्तृत श्रृंखला का उत्पादन कर सकता है।
- 7.
स्क्रैप धातु को रीसायकल करके एक चक्रीय अर्थव्यवस्था को बढ़ावा देने के लिए महत्वपूर्ण।
- 8.
नवीकरणीय ऊर्जा स्रोतों का उपयोग करके ईएएफ स्टील उत्पादन को और अधिक डीकार्बोनाइज किया जा सकता है।
दृश्य सामग्री
Evolution of Electric Arc Furnace (EAF) Technology
Timeline of key developments in Electric Arc Furnace (EAF) technology.
ईएएफ प्रौद्योगिकी अपने शुरुआती चरणों से विकसित होकर टिकाऊ इस्पात उत्पादन का एक प्रमुख घटक बन गई है, जो पर्यावरणीय चिंताओं और संसाधन दक्षता की आवश्यकता से प्रेरित है।
- 1900sईएएफ प्रौद्योगिकी का प्रारंभिक विकास
- 1950sइस्पात उत्पादन में अधिक अपनाया गया
- 1986पर्यावरण संरक्षण अधिनियम, 1986 (कानूनी ढांचा)
- 2010sरीसाइक्लिंग और कम उत्सर्जन पर बढ़ता जोर
- 2026स्क्रैप संग्रह में सुधार और हरित इस्पात उत्पादन को बढ़ावा देने पर ध्यान दें
हालिया विकास
5 विकासIncreasing adoption of EAF technology globally.
Research and development efforts to improve EAF efficiency and reduce emissions.
Government incentives to promote EAF steel production.
Growing demand for green steel produced using EAFs and renewable energy.
Focus on improving scrap metal collection and processing infrastructure.
सामान्य प्रश्न
61. What is an Electric-arc-furnace (EAF), and what are its key provisions relevant for UPSC GS Paper 3?
An Electric-arc-furnace (EAF) is a furnace that heats charged material by means of an electric arc, primarily used for producing steel from scrap metal. Key provisions include its use of electricity to melt scrap, higher energy efficiency compared to blast furnaces, lower greenhouse gas emissions, reliance on a stable electricity supply, and dependence on scrap metal availability. It is relevant to UPSC GS Paper 3 (Infrastructure, Environment) for understanding industrial decarbonization and the circular economy.
परीक्षा युक्ति
Remember EAF as a key technology for 'Green Steel' production, focusing on its environmental advantages over traditional methods.
2. How does an Electric-arc-furnace (EAF) work in practice, and what makes it more energy-efficient than traditional blast furnaces?
An EAF uses high-voltage electrical discharge (electric arc) to generate intense heat, melting scrap metal. Its energy efficiency stems from directly using electricity for heating, minimizing energy loss compared to blast furnaces that rely on burning fossil fuels like coal. This direct heating reduces the overall energy consumption per ton of steel produced.
परीक्षा युक्ति
Focus on the 'direct heating' aspect of EAF for Prelims questions related to energy efficiency in steel production.
3. What are the limitations of Electric-arc-furnace (EAF) technology?
Limitations of EAF technology include its dependence on a reliable and continuous supply of electricity, and its reliance on the availability of scrap metal. Fluctuations in electricity prices and scrap metal costs can significantly impact the economic viability of EAF steel production.
परीक्षा युक्ति
Consider the supply chain vulnerabilities (electricity and scrap metal) when evaluating the feasibility of EAF projects.
4. What is the significance of Electric-arc-furnace (EAF) technology in the context of India's commitment to reduce carbon emissions?
EAF technology is significant because it produces fewer greenhouse gas emissions compared to traditional blast furnaces. Increasing the adoption of EAF steel production aligns with India's goals for industrial decarbonization and contributes to achieving its climate change commitments under international agreements.
परीक्षा युक्ति
Link EAF adoption to India's Nationally Determined Contributions (NDCs) under the Paris Agreement.
5. What legal frameworks in India are relevant to the operation and promotion of Electric-arc-furnaces (EAFs)?
Relevant legal frameworks include the Environment Protection Act, 1986, which regulates emissions from industrial processes. Additionally, policies promoting recycling and the circular economy indirectly support EAF adoption by ensuring a steady supply of scrap metal. Government incentives may also be in place to promote EAF steel production.
परीक्षा युक्ति
Focus on the Environment Protection Act, 1986 as the primary legislation. Understand how circular economy policies support EAF indirectly.
6. How has the adoption of Electric-arc-furnace (EAF) technology evolved globally, and what are the recent developments in this field?
The adoption of EAF technology has increased globally due to the growing emphasis on recycling and reducing carbon emissions in steel production. Recent developments include ongoing research and development efforts to improve EAF efficiency and reduce emissions, as well as government incentives to promote EAF steel production.
परीक्षा युक्ति
Highlight the link between increasing EAF adoption and global climate change mitigation efforts.