Diesel Generator Combustion Efficiency Optimization Guide

It is well-known that diesel generators use diesel fuel to generate electricity, but diesel combustion can impact environmental quality—especially when diesel generator sets fail to achieve complete combustion, which exacerbates air pollution. Additionally, incomplete combustion may accelerate engine wear, increase fuel consumption, raise power generation costs, and shorten the service life of generator sets. Therefore, improving diesel combustion efficiency has become a critical concern for generator users. This guide explores the causes of incomplete diesel combustion and methods to enhance combustion efficiency.

Key Causes of Low Fuel Combustion Efficiency

1.Poor Fuel Quality

2.Blocked Air Intake

Clogged air filters restrict airflow, preventing sufficient oxygen from supporting complete diesel combustion.

3.Incorrect Fuel Injection Timing

Premature fuel injection timing disrupts the optimal combustion cycle.

4.Faulty Fuel Injectors

Poor sealing of injector needles, leading to fuel leakage or dripping.

Low injection pressure, resulting in inadequate fuel atomization.

5.Excessive Fuel Supply

Over-fueling by the injection pump causes incomplete combustion and deterioration of combustion conditions.

6.Low Cylinder Pressure

Insufficient compression pressure leads to poor fuel atomization and incomplete combustion.

Troubleshooting Incomplete Combustion

1.Verify Fuel Quality

Ensure the diesel fuel meets specified quality standards.

2.Inspect the Air Filter

Check for clogs and clean or replace the air filter if necessary to restore proper airflow.

3.Adjust Fuel Injection Timing

Rotate the diesel engine and insert the camshaft timing pin when the first cylinder is at top dead center (compression stroke).

Check if the injection pump camshaft locking pin can be inserted. If not, the injection timing is incorrect and requires adjustment.

4.Test Fuel Injectors

Verify injection pressure and spray pattern; ensure no fuel dripping occurs. Replace faulty injectors promptly.

Additional Efficiency-Boosting Methods

1.Water Injection in the Intake Manifold

Injecting a small amount of water into the intake manifold lowers combustion temperature and dilutes fuel. During combustion, water droplets undergo micro-explosion, breaking fuel droplets into smaller particles and promoting more complete secondary combustion.

2.Direct Water Addition to Diesel Fuel

Adding a controlled amount of water to diesel fuel causes water to vaporize during combustion. The steam interacts with fuel, creating micro-explosions that enhance fuel atomization and combustion efficiency. This method also reduces combustion temperature and lowers pollutant emissions.

By addressing these factors and implementing the recommended adjustments, users can significantly improve diesel combustion efficiency, reduce environmental impact, and extend the service life of their generator sets.

Guangxi Dingbo Power Equipment Manufacturing Co.,Ltd was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. The company has a registered capital of 218.88 million yuan. The company covers an area of 86,000 square meters and a building area of 55,000 square meters. There are more than 660 employees, including 456 professional technicians and 106 senior technicians. It has 46 sales and service outlets nationwide. The main products are diesel engines, generator sets, and diesel generators, providing users with a one-stop service of design, supply, debugging and maintenance at any time. Dingbo has always insisted on using first-class talents, building first-class enterprises, manufacturing first-class products, creating first-class services, and making every effort to build a first-class domestic enterprise. If any question please feel free to visit our website https://www.dieselgeneratortech.com/ or send email to [email protected].