I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
PDH catalyst Last month, Clariant's Catalyst business (Munich, Germany; www.clariant.com)…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILESOLIDS PROCESSINGENGINEERING PRACTICEEQUIPMENT & SERVICESFOCUS
Focus on Pumps
Self-priming, liquid-ring pumps enable hygienic operation The CFS AS/ASH Series…
NEW PRODUCTS + Show More

Comment

A new gas-engine cogeneration system

By Gerald Ondrey |

Last month, Mitsubishi Heavy Industries, Ltd. (MHI; www.mhi.co.jp) and Tokyo Gas Co. (both Tokyo, Japan; www.tokyo-gas.co.jop) began marketing a jointly developed 1,000-kW gas-engine cogeneration system. Based on the conventional 930-kW system, the new systems engine operates at a reduced speed (1,000 rpm instead of 1,500 rpm), so the wear-rate of components is reduced. This leads to a reduction of the overall maintenance costs by 30%, says MHI. The engine is able to generate a higher output at lower speeds because its piston stroke has been extended by approximately 20% compared to the conventional system. Also, the use of a highly efficient turbocharger has increased the amount of compressed fuel-air mixture supplied into the cylinders, which raises the mean effective pressure by 30% from the conventional system. The new system also features an upgraded engine-control unit that leads to a generating efficiency of 42.3%, which is said to be the highest level in the 1,000-kW class. The thermal efficiency has also been improved by upgrading the one-stage intercooler used on the conventional system to a two-stage intercooler system (diagram) to achieve an overall efficiency of 78.5%. The combination of reduced maintenance costs and…
Related Content
Removing PFAS from wastewater
A new low-cost, safe and environmentally friendly method for removing polyfluorinated alkyl substances (PFAS) from water has been developed by…
A sound way to make MOFs
Researchers from RMIT University (Melbourne, Australia; www.rmit.edu.au) have demonstrated a “green” technique that can produce customized metal organic framework (MOF)…
Chementator Briefs
PDH catalyst Last month, Clariant's Catalyst business (Munich, Germany; www.clariant.com) launched its latest propane dehydrogenation (PDH) catalyst, Catofin 311, which…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
Quadruple Sensor Lifetime with a Retractable Housing
Minimizing Explosion Risk Where Other Solutions Cannot
Minimizing Corrosion with Fast, Robust Gas Analysis
Lower Measurement Point Costs with Automatic pH Sensor Cleaning
Reduce the Risk of Corrosion in Fertilizer Production

View More

Live chat by BoldChat