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Water-cooled hazardous location engine |
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Written by REM Staff
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 Caterpillar has introduced of the C7 ACERT, C9 ACERT and C32 ACERT hazardous location water-cooled manifold engines. Caterpillar designed these engines to meet the requirements of the hazardous location environments often found in offshore applications. These engines are required when running in an application where any ignition source from the engine such as hot skin temp or electrical arching could cause an explosion due to the hazardous chemicals or gases in the environment.
The Cat® hazardous location engines can be configured at the following ratings:
• C7 ACERT: 205, 230, 275 bhp at 2,200 rpm
• C9 ACERT: 340 bhp at 2,200 rpm
• C32 ACERT: 800, 860, 920, 1,100 bhp at 2,100 rpm
These engines meet the most current land and offshore emissions requirements, including EPA Tier 3, EU Stage IIIA, IMO and EPA Marine Tier 2 emissions requirements. Additionally, with the use of the EPA Tier 4 flexibility provisions, the EPA Tier 3 ratings will be applicable for land based applications until 2018.
The new engines, which are currently available for purchase through the Cat global dealer network, provide additional cooling options based on the application. Both the Separate Circuit (water-to-air) Aftercooled (SCAC) and Remote Aftercooled (REMAC) cooling system options are available on the C7 ACERT and C9 ACERT engines to increase flexibility and ease of installation. The C32 ACERT features the Separate Circuit (water-to-air) Aftercooled (SCAC) cooling system.
Cat water-cooled exhaust manifold engines feature water-cooled exhausts and turbochargers to maintain lower engine skin temperatures. Mostly used in offshore applications, the reduced engine skin temperature allows the engine to operate in enclosed areas and around hazardous materials. ATEX safety directives require that engine skin temperatures remain below 200° C (T3). In order to comply, some ATEX configurations come with software to automatically derate engine power to maintain ATEX T3 skin temperatures in all ambient conditions up to 45°C. Check the applicable TMI performance data for specific rating ambient performance and also the appropriate A&I guide for proper engine installation requirements.
www.cat.com
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