Dry Coolers As Air Coolers in Organic Rankine Cycles

Dry Coolers as Air Coolers in Organic Rankine Cycles

Dry coolers play an important role as air coolers in the organic Rankine cycle.

Principle of Operation

In the organic Rankine cycle, the dry cooler mainly through the air and the organic workpiece for heat exchange. From the expander discharged low-pressure, low-temperature organic matter into the dry cooler, and the surrounding air for heat transfer. The air absorbs the heat of the organic matter, so that the organic matter is cooled and condensed into liquid, ready for the next cycle.

Advantages

Energy saving and high efficiency: using air as the cooling medium, no additional cooling water source is needed, which reduces the energy consumption of the system. At the same time, the dry cooler has a high heat transfer efficiency, which can effectively cool organic substances to the required temperature.

High reliability: the structure of the dry cooler is relatively simple, there is no complex water circuit system, reducing the possibility of equipment failure. In addition, air as a cooling medium, not affected by water quality and other factors, more stable and reliable operation.

Environmentally friendly: no water resources are used, avoiding the waste and pollution of water resources. Meanwhile, there is no wastewater discharge during the operation of the dry cooler, which meets the requirements of environmental protection.

Convenient installation and maintenance: the dry cooler is small in size, flexible and convenient to install. Its maintenance cost is also relatively low, only need to regularly clean and replace the air filter to ensure the normal operation of the equipment.

Application Scenarios

Dry coolers are widely used in various organic Rankine circulation systems, especially for water-scarce areas or occasions with strict restrictions on water resources. For example, in the field of solar thermal power generation, industrial waste heat recovery, geothermal power generation, etc., dry coolers play an important role.