Remote Air-Cooled Condenser for Mitsubishi Gas Engines

Mitsubishi gas engines—from the GSR, GSU, GS16R2, GS21R2, GS6R, and GS12R series to the larger GS30R2 models—require stable and efficient cooling to maintain optimal combustion efficiency, electrical output, and long-term engine durability. When these engines are installed indoors or in containerized CHP/generator packages, a remote air-cooled condenser (RACC) offers a reliable and flexible heat-rejection solution.

A remote air-cooled condenser relocates the cooling system away from the engine, transferring heat from the HT (high-temperature) and LT (low-temperature) coolant circuits to ambient air using finned-tube coils and axial fans. This configuration enhances system performance, reduces engine-room thermal load, and simplifies plant integration.

Why Mitsubishi Gas Engines Benefit from Remote Air-Cooled Condensers

1. Stable Cooling for High-Efficiency Engines

Mitsubishi engines are engineered for high electrical efficiency and low emissions. To uphold these performance standards, they require tightly controlled coolant temperatures. A RACC ensures:
• Consistent outlet temperatures under fluctuating electrical loads
• Improved charge-air cooling for stable combustion
• Reduced risk of engine derating, even at elevated ambient temperatures

2. Ideal for Indoor, Containerized, and CHP Installations

Many Mitsubishi gas engine installations—especially in CHP plants, factories, hospitals, and distributed power stations—are housed indoors. A remote condenser:
• Eliminates the need to reject heat inside the engine room
• Lowers noise and vibration inside buildings
• Offers flexible placement on rooftops or outdoor platforms
• Allows the engine hall to remain compact and thermally stable

3. Enhanced Reliability in Harsh Climates

Rooftop or outdoor condenser systems maintain cooling efficiency across a wide range of climate conditions.
• VFD axial fans ensure precise temperature control in hot weather
• Oversized coil banks support full-load operation up to 45–50°C ambient
• Glycol circuits, louvers, or fan modulation stabilize coolant temperature in freezing climates
• Protective coatings (epoxy, hydrophilic, or heresite) ensure coil longevity in corrosive environments

Applications

Remote air-cooled condensers are widely used with Mitsubishi gas engines in:
• Cogeneration (CHP) systems for buildings and factories
• Landfill, biogas, and wastewater treatment power plants
• Distributed power generation and microgrids
• Containerized generator sets
• Industrial and utility standby or prime power installations
• Sites with limited space for engine-mounted radiators

A Remote Air-Cooled Condenser is an optimal cooling solution for Mitsubishi gas engines, ensuring stable engine performance, high electrical efficiency, and long-term operational reliability. With robust construction, advanced fan control, and adaptability to both HT and LT circuits, RACCs support the demanding operational requirements of Mitsubishi’s industrial power systems across diverse environmental and installation scenarios.