High emissivity coating for energy generation systems

In the energy generation industry, generating more power isn’t enough if you’re losing too much of it to waste. Efficiency matters. Experts often mention energy efficiency as the ‘first fuel’ in clean energy transitions. 

However, generating energy without much energy loss is a real challenge. Energy plants need solutions that are easy to apply, cause minimal downtime, and deliver quick ROI. emiSEAL – a high emissivity coating does precisely that.

What is emiSEAL?

emiSEAL is a high-emissivity ceramic coating. It is engineered to increase the emissivity of the coated surface. This means the coated surface will emit more thermal radiation.

Read our science behind these coatings blog: Simplifying the Science Behind High Emissivity Coatings

Why emiSEAL?

In high-temperature operation, heat is absorbed by the refractory walls, insulation bricks, or structural surfaces (radiant heat loss). Because of this, less heat reaches the load, and more heat is required to produce energy. 

emiSEAL enhances the coated surface’s ability to radiate heat. This means the coated surface will re-emit more energy back into the process instead of letting the walls soak up heat, improving efficiency. 

Still confused about how emissivity can help in managing heat, read our blog: The Key to Effective Thermal Management in Coatings

Where can emiSEAL be used in energy generation?

In the energy generator industry, emiSEAL isn’t helpful for turbines or engines. But it is highly beneficial for high-temperature processes where maintaining optimal radiant heat flow is critical. In power plants, high emissivity coatings on furnaces, boiler tubes, heat exchangers, and combustion chambers improve heat transfer and reduce energy loss. Let us understand each of these in more detail. 

Impact of emiSEAL on combustion chambers:

In a combustion chamber, fuel is burned to generate heat. Refractory walls of these chambers often absorb heat. This slows down the process. emiSEAL is applied on the inner walls of combustion chambers. High emissivity coatings on furnaces and combustion chambers retain heat and significantly reduce the heat-up time. 

This leads to:

  • Reduced radiant heat loss
  • Improved thermal efficiency
  • Consistent combustion
  • Uniform temperature distribution
  • Reduced fuel usage
  • Increased lifespan of refractory linings

Impact of emiSEAL on boilers: 

In a power plant’s boilers, water turns into steam using the heat from the burners. This steam is then used for power. When applied to boiler walls, emiSeal reradiates heat inward, which would have been absorbed by the walls otherwise. 

This leads to:

  • Reduced surface heat loss
  • Faster heat up
  • More steam generation per unit of fuel
  • Less thermal fatigue of machines

Impact of emiSEAL on Heat Recovery Steam Generators (HRSGs)

In combined cycle power plants, HRSGs capture waste heat from a gas turbine’s exhaust and use it to power a steam turbine. Radiant heat is often absorbed by internal surfaces or lost through casing and ductwork. Emiseal is applied to the internal refractory linings. This leads to:

  • Improved heat retention 
  • Stable temperature
  • Reduced fuel usage

emiSEAL on supporting system:

In many energy facilities, auxiliary systems like oil heaters, preheaters, or heat treatment chambers run on high temperatures. Moreover, in thermal-intensive areas where aluminium components are used, high emissivity paint for aluminium can help regulate heat efficiently. 

In fact, high-emissivity ceramic coating can also be used on parts directly exposed to flame or combustion gases, such as flare tips, sulfur recovery units or oxidizers. These help in reducing direct heat stress on the material, making the operation stable and efficient with the least equipment damage. 

emiSEAL to make the energy generator industry sustainable:

Sustainability is not always about using cleaner fuel. It is about using less of it in the first place.emiSEAL helps utilize more of the available heat by minimizing losses. This means systems use less fuel to generate the same level of energy.

emiSEAL is one of a kind coating developed and researched in India by Novota Themotech, a high emissivity ceramic coating manufacturer that focuses on developing solutions to enhance sustainability and make our world greener

Did you know emiSEAL also helps in lowering carbon emissions? Since less fuel is burned, less carbon is emitted, and the power plant’s carbon footprint significantly drops without changing the core process.  

Conclusion:

As high-emissivity ceramic coating manufacturers, we firmly believe that getting the same output with less energy should be a driving factor for any energy generation industry, irrespective of the energy source. Hence, energy generators should consider emiSEAL as a practical & cost-effective upgrade with high returns. 

At Novota Thermotech, as a high-emissivity ceramic coating manufacturer, we develop custom high-emissivity coatings, tailored to your operations.

Still confused if high-emissivity coating can benefit your operation? Connect with our experts

FAQs:

Can emiSEAL be customised for different types of generators or conditions?

At Novota Thermotech, we customise coatings based on your application needs using different technologies. For more info, email us at info@novota.in

Where can I buy or inquire about emiSEAL for my energy plant?

To buy or learn more about emiSEAL, email us at info@novota.in. Our team will get back to you shortly.

Is emiSEAL compatible with high-temperature environments and heavy-duty equipment?

Yes, emiSEAL is engineered to sustain high-temperature environments.

How does emiSEAL improve the efficiency and lifespan of industrial generators?

emiSEAL prevents refractory surfaces from absorbing heat, so the lifespan of these surfaces is enhanced. Moreover, it reduces energy wastage in industrial generators, leading to more efficient operations.

What makes emiSEAL suitable for the energy generator industry?

emiSEAL helps the energy generator industry generate more energy from less fuel. It is suitable for any energy generator that wants to have a better ROI and be sustainable.

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