What is the maximum thermal efficiency of diesel engine?

The average working pressure of modern low-speed diesel engine can reach 1.90- 1.95 MPa, the fuel consumption is below 1.70g/kWh, the efficiency can reach 55%, and the compression ratio/cylinder diameter ratio can reach 4.2. Generally, the low-speed engine directly drives the large-diameter propeller, which can realize reverse rotation, eliminating the transmission requirements such as gear reducer and reducing the cost. In addition, low-quality fuel can be used, and the operating cost is much lower than other types of engines.

Extended data:

Precautions:

Turn the main switch of the diesel generator controller to the manual position to start the diesel generator.

Immediately after the unit is started, check whether the indications of various instruments of the diesel engine are normal and whether the running sound and vibration of the unit are normal. ?

After the unit runs normally, the generator switch can be closed for on-load operation.

After the generator is loaded, the operation of the generator should be checked immediately, and the switches, instruments and signals of each switchboard should be checked. Whether it's lights, cables, connectors, etc. They are all normal, and they are constantly patrolling during operation.

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