Reliable power is crucial for industrial development. Diesel generator (DG) sets are a critical part of backup power for manufacturing facilities, hospitals, commercial buildings, IT parks, data centers, hotels, construction sites, telecom infrastructure, and other vital facilities when grid power is unavailable.
DG sets are typically the backbone of operational continuity. However, the exhaust from DG sets contributes to the unsustainability of air quality. With the increasing focus from most industries on regulatory compliance and a cleaner operation, advanced emission control technologies are being adopted to address the impact that diesel generators pose on the environment.
One Such solution is the Retrofit Emission Control Device (RECD)
An RECD is an advanced emission control technology that is integrated into the exhaust of a diesel generator. The primary objective of an RECD is to support industries in enhancing their environmental performance by minimizing the impact of diesel generators on the environment. This is achieved by minimizing the harmful exhaust emissions that are discharged into the atmosphere and assisting industries in meeting the pollution control requirements of greater compliance.
RECD are being widely adopted in multiple sectors to address the critical need for backup power generation and, in turn, allow the more responsible operations of DGs and support sustainability, environmental management, and the continued shift towards cleaner industrial operations.
This comprehensive guide explains everything you need to know about RECD, including how it works, where it is used, its benefits, installation considerations, maintenance practices, and why it has become an important component of modern diesel generator emission management.
Table of Contents
- What is RECD?
- RECD Full Form
- Why Diesel Generator Emissions Matter
- How RECD Works
- Pollutants Addressed by RECD
- Benefits of RECD
- Industries Using RECD
- Environmental Compliance
- Installation Process
- Maintenance
- Choosing the Right RECD
- Frequently Asked Questions (FAQ)
What is RECD?
RECD stands for Retrofit Emission Control Device.
RECD is an emission control solution for diesel generator sets. Rather than replacing the entire generator set, RECD is added to the exhaust system of the diesel generator. This retrofit helps industries enhance the emission performance of the generator set with little to no modifications to the generator set.
The word “retrofit” means to add new technology to older technology. For this reason, RECD is an appealing solution for industries that have diesel generator sets and would like to enhance their emission performance and lessen their environmental impacts, while maintaining their existing generator sets.
Unlike the entire generator set replacement, retrofitting significantly reduces costs and helps improve the emissions performance of the generator set while using a practical approach and minimizing the installation time.
RECD is commonly used in:
- Manufacturing Sector
- Hospitals
- Hotels
- IT Parks
- Commercial Complexes
- Data Centers
- Educational Institutions
- Airports
- Metro Projects
- Telecom Infrastructure
- Construction Projects
- Government Buildings
- Industrial Plants
The main goal of RECD is to improve the emission performance of diesel generator sets while providing reliable diesel generator set operations.
2. RECD Full Form
RECD == Retrofit Emission Control Device.
Each part of the term has a specific meaning:
| Term | Meaning |
| Retrofit | Upgrading existing equipment with improved technology |
| Emission | Exhaust gases released during engine operation |
| Control | Managing and reducing harmful emissions |
| Device | An engineered system installed on existing equipment |
Together, these words tell a story of a newly invented solution designed to make diesel generators less harmful to the environment.
Why Diesel Generator Emissions Matter?
The combustion of a diesel engine is a continuous process. As long as generator sets are functional and running, they will be pumping out harmful exhaust gases that will worsen the quality of the air and the environment.
These emissions become more significant in locations where multiple generators operate regularly or for extended durations.
Examples include:
- Manufacturing facilities
- Hospitals
- Industrial estates
- Commercial buildings
- Data centres
- Construction projects
- Infrastructure developments
As the world urbanizes and becomes more environmentally conscious, so will the businesses.
Improving emission performance offers several advantages:
- Better workplace environmental conditions
- Support for sustainability programmes
- Reduced environmental impact
- Improved corporate responsibility
- Better alignment with regulatory expectations
- Enhanced public perception
Pollutants Commonly Produced by Diesel Generators
There are several emissions that diesel generators can produce.
➜ Nitrogen Oxides (NOx)
Poor air and atmospheric quality are the result of emissions that contain nitrogen oxides, which are generated when combustion reaches high temperatures.
The goal of reducing NOx emissions is becoming a high priority in most industries.
➜ Carbon Monoxide (CO)
Carbon monoxide is also an observable pollutant when combustion is incomplete.
Controlling and mitigating CO emissions also improves the environmental quality of industrial operations.
➜ Hydrocarbons (HC)
Hydrocarbons are unburnt fuel elements that are emitted after combustion.
Reducing hydrocarbon emissions leads to an exhaust that operates more cleanly.
➜ Particulate Matter (PM)
Particulate matter consists of small particles that are emitted after the exhaust leaves the engine.
Reducing particulate emissions improves the air quality surrounding industrial sites.
Why Industries Install RECD
There are several comparable and practical reasons for the use of RECD by the modern industry.
▶ Environmental Responsibility
💡The industry has embraced various sustainability initiatives, with the goal of reducing its operational emissions.
💡RECD allows the diesel generators to have better environmental outcomes and work toward sustainability initiatives.
▶ Regulatory Compliance
💡There are always changing environmental standards aimed at improving air quality.
💡Installing an RECD allows the industry to meet various standards for exhaust emission control. It shows a clear commitment to caring for the environment.
▶ Cost-Effective Upgrade
💡The diesel generators that are in use can be costly to replace.
💡The system mandate allows the industry to achieve better emission outcomes and continue to use and defer the cost of replacing the diesel generators.
▶ Business Continuity
The use of diesel generators that are in full operation continues and allows the industry to have a reliable power support system. The use of modified generators allows the industry to reduce its environmental impact.
Key Benefits of RECD
There are a number of operational and environmental benefits of RECD, which explain the industry’s use of RECD.
| Benefit | Description |
| Cleaner emissions | Helps reduce harmful exhaust emissions |
| Sustainable operations | Supports environmental initiatives |
| Existing DG compatibility | Designed for retrofit applications |
| Operational continuity | Uses existing generators |
| Cost efficiency | Avoids complete generator replacement |
| Environmental responsibility | Contributes to cleaner industrial practices |
| Regulatory support | Helps organisations meet applicable emission expectations |
| Long service life | Engineered for industrial operation |
| Industrial reliability | Suitable for continuous industrial environments |
How RECD Works
RECD are installed directly in line in the exhaust system of the diesel generator.
As exhaust gases flow through the system, the RECD is designed to control and minimize harmful emissions that are about to exit through the exhaust outlet.
This gives the generator the ability to continue providing essential backup power and, at the same time, to discharge exhaust in a cleaner manner.
The exact engineering design may vary depending on:
– Generator Size
– Engine Type and Model
– Operational Conditions
– Application Requirements
– Design Requirements of the Standards of the Industry
Because of these factors, RECD are often chosen after a thorough technical assessment of the diesel generator system.
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