Recently, Shanghai Branch of China Classification Society (CCS) issued type approval certificate for CS21DF-M methanol dual-fuel engine independently developed by Shanghai Marine Diesel Engine Research institute (SMDERI).
This is the first domestic methanol dual-fuel engine product with methanol direct injection technology that realizes a replacement rate of more than 90% of the calibrated working conditions, marking a major breakthrough in the development of key technologies of efficient and clean combustion in methanol in-cylinder direct injection and methanol high-pressure direct-injection system of methanol engines for ships of China’s own brand and of great significance to the promotion of the green transformation and development of the shipping industry.
The type testing was carried out in strict accordance with CCS specifications and guidelines. SMDERI’s scientific research team, in collaboration with CCS surveyors, verified the actual engine operation on-site for classification, and all the indexes met the verification requirements.
The CS21DF-M methanol engine has a single-cylinder power of 200 kW, and the whole engine power covers 800-1800 kW with a rated speed of 1000r/min. The emission meets the requirements of IMOTierII and GB15097 China Phase II regulatory limits. Its flexible fuel design concept ensures that the engine can be switched between methanol and diesel modes senselessly, making it ideal for the shipping industry to cope with greenhouse gas emission reduction regulations.
Currently, the CS21 series methanol engine has received orders for 16 sets in the ocean-going and inland vessels, with deliveries to follow in 2025.
SMDERI will launch green and low-carbon products such as methanol single-fuel engines and ammonia-fueled engines, providing integrated solutions of core power products and satisfactory services for the green and low-carbon transformation of the shipping industry.