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Short Tricks/Boiler Types Video Lecture - Mechanical Engineering
FAQs on Short Tricks/Boiler Types Video Lecture - Mechanical Engineering
| 1. What are some common types of boilers used in mechanical engineering? |  |
Ans. Some common types of boilers used in mechanical engineering are:
- Fire-tube boilers: These boilers have hot gases flowing inside the tubes and water surrounding them.
- Water-tube boilers: In these boilers, water circulates through the tubes while hot gases surround them.
- Electric boilers: These boilers use electricity to generate heat and produce steam.
- Biomass boilers: Biomass, such as wood pellets or agricultural waste, is used as fuel in these boilers.
- Condensing boilers: These boilers recover heat from the flue gases, increasing their efficiency.
| 2. What is the difference between a fire-tube boiler and a water-tube boiler? | |
Ans. The main difference between a fire-tube boiler and a water-tube boiler is the arrangement of the heating surfaces. In a fire-tube boiler, the hot gases flow through the tubes, and water surrounds them. On the other hand, in a water-tube boiler, water circulates through the tubes, and the hot gases surround them. This difference affects factors such as efficiency, pressure capacity, and response to load changes.
| 3. How do electric boilers work? | |
Ans. Electric boilers work by using electricity to heat up water and generate steam. They consist of heating elements submerged in the water, which heat up when an electric current passes through them. The heated water then produces steam, which can be used for various applications in mechanical engineering. Electric boilers are relatively easy to install and have no emissions, making them environmentally friendly.
| 4. What is the advantage of using biomass boilers? | |
Ans. Biomass boilers offer several advantages in mechanical engineering applications:
- Renewable energy source: Biomass is a renewable energy source, as it comes from organic materials that can be replenished.
- Carbon neutral: Burning biomass releases the same amount of carbon dioxide that the plants absorbed during their growth, making it a carbon-neutral fuel.
- Cost-effective: Biomass fuel is often cheaper than fossil fuels, leading to potential cost savings.
- Reduced dependence on fossil fuels: Using biomass boilers reduces the reliance on fossil fuels, contributing to a more sustainable energy mix.
| 5. How do condensing boilers improve efficiency? | |
Ans. Condensing boilers improve efficiency by recovering heat from the flue gases that would otherwise be wasted. They have a secondary heat exchanger that extracts heat from the hot gases before they are expelled through the flue. This extracted heat is used to preheat the cold water entering the boiler, reducing the energy required to raise its temperature. By utilizing this additional heat, condensing boilers can achieve higher overall efficiency compared to traditional boilers.
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Nov 14, 2024 Last updated |
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