How RECD Kit Works

Retrofit Emission Control Device for Diesel Gensets (RECD) is a sophisticated after-treatment system specifically engineered to cleanse the exhaust gases from older, non-compliant diesel generators. Its core function is to reduce harmful emissions, primarily Particulate Matter (PM), Carbon Monoxide (CO), and Hydrocarbons (HC), to meet the stringent CPCB Approved RECD Kit for DG Sets requirements, which mandate at least a 70% reduction in PM.2 The device is strategically installed in the DG set exhaust line, often replacing the existing silencer. The primary working principles rely on a combination of physical filtration and chemical conversion. Most certified RECDs employ a system that includes a Diesel Oxidation Catalyst (DOC) and a Diesel Particulate Filter (DPF). The DOC initiates the chemical process by oxidizing CO and unburnt HC into less harmful Carbon Dioxide and water. Following this, the DPF, which acts like a high-tech ceramic filter, physically traps the fine soot and ash particles (PM) before the exhaust is released into the atmosphere.

The effectiveness of the RECD Kit for DG Sets Fitting and Installation hinges on the continuous or periodic removal of the trapped Particulate Matter—a process known as Regeneration. For many filter-based systems, this is achieved through Passive Regeneration, where the natural heat of the DG set exhaust gas reacts with a catalyst coating on the DPF, essentially burning off the collected soot into a small amount of ash. The Best RECD Kits for Commercial Diesel Generators are designed to perform this regeneration efficiently without needing external energy or causing excessive backpressure, which could otherwise degrade the DG set performance. Furthermore, some modern Low Emission Diesel Genset Retrofit Solutions utilize innovative Filterless Technology, often based on Electrostatic Precipitation (ESP). In an ESP system, the exhaust gases pass through a high-voltage electrical field. This field imparts an electric charge to the particulate matter, which is then attracted to and captured by oppositely charged collection plates. This method is gaining popularity among RECD Kit Manufacturer and Supplier in Delhi as it eliminates the need for filter cleaning or replacement, offering a robust and low-maintenance option for Industrial DG Sets.

Beyond the core filtration and conversion technologies, the operational intelligence of the RECD kit ensures consistent compliance and engine protection. Every certified device includes an Onboard Diagnostics (OBD) System and a monitoring unit. This sophisticated electronic control system continuously measures vital parameters such as exhaust temperature, gas pressure, and the amount of particulate matter buildup. By monitoring these variables, the RECD ensures that the engine is operating within safe backpressure limits and that the emission control is functioning optimally. This real-time data collection not only facilitates compliance reporting to regulatory bodies but also alerts operators to any potential issues, allowing for proactive maintenance. Ultimately, the way an RECD kit works—be it through advanced catalytic filtration or groundbreaking filterless systems—is by transforming the raw, polluting exhaust of a diesel engine into compliant, cleaner emissions, making it an essential component for any responsible Diesel Generator Emission Control System.