With increasing air pollution and strict environmental regulations, controlling emissions from diesel generators has become essential. This is where RECD for DG Set plays a crucial role. If you’re new to this concept, this guide will clearly explain the meaning, working, and benefits of RECD in simple terms.
Meaning of RECD for DG Set
RECD stands for Retrofit Emission Control Device.
It is a pollution-control device installed on the exhaust system of an existing diesel generator (DG set) to reduce harmful emissions. Instead of replacing old DG sets, RECD allows them to comply with emission norms by controlling pollutants released into the air.
Why RECD Is Important for DG Sets
Diesel generators emit pollutants such as:
- Particulate Matter (PM)
- Nitrogen Oxides (NOx)
- Carbon Monoxide (CO)
- Unburnt Hydrocarbons (HC)
These emissions are harmful to human health and the environment. To control this, pollution control authorities have made RECD mandatory for many existing DG sets, especially in urban and industrial areas.
Working of RECD for DG Set
The working of RECD is simple and effective:
- Installation on Exhaust Line
RECD is fitted directly to the DG set’s exhaust system. - Pollutant Capture & Treatment
As exhaust gases pass through the RECD:- Harmful particles are trapped or oxidized
- Toxic gases are converted into less harmful substances
- Cleaner Exhaust Release
Treated exhaust gases are released with significantly reduced emissions.
Some modern RECD systems are filterless, meaning they require minimal maintenance while delivering high efficiency.
Types of RECD for DG Set
1. Filter-Based RECD
- Uses filters to trap particulate matter
- Needs periodic cleaning or replacement
2. Filterless RECD
- Uses advanced catalytic or oxidation technology
- Low maintenance and longer life
3. Catalytic RECD
- Converts harmful gases into safer emissions using catalysts
- Highly effective and eco-friendly
Benefits of RECD for DG Set
Installing RECD on a DG set offers multiple benefits:
- Compliance with pollution control norms
- Significant reduction in smoke and particulate matter
- Improved air quality in surrounding areas
- Avoidance of fines, penalties, and DG shutdown
- Environment-friendly operations
- Extended usability of existing DG sets
Is RECD Mandatory for DG Sets?
Yes. In many regions, RECD is mandatory for older and existing diesel generators as per pollution control guidelines. Operating a DG set without RECD can result in:
- Heavy fines
- Legal notices
- Sealing or banning of DG sets
Installing RECD ensures smooth, legal, and uninterrupted operation.
RECD for DG Set Price (Indicative)
The cost of RECD depends on:
- DG set capacity (kVA)
- Technology type (filter-based or filterless)
- Certification and brand
- Installation requirements
Indicative Price Range:
RECD prices typically start from ₹1.5 lakh and can go up to ₹8–10 lakh or more, depending on specifications.
Conclusion
RECD for DG Set is an effective and essential solution to control diesel generator emissions. It helps businesses and institutions comply with emission norms, protect the environment, and avoid regulatory issues—without replacing existing DG sets.
If you operate a diesel generator, installing RECD is not just a legal requirement but a responsible step toward cleaner air and sustainable power solutions.