Heat exchangers from Kelvion – for greater performance and reduced emissions
With its heat exchanger portfolio, Kelvion serves a diverse range of applications in maritime operations: ranging from standard coolers, including compact and robust heaters and oil coolers, and extending to exhaust gas recirculation coolers that enable reduction of nitrogen oxide emissions by four-fifths.
Exhaust Gas Recirculation Coolers (EGR) for two- and for four-stroke engines
For effective reduction of nitrogen oxide emissions by exhaust gas recirculation, the exhaust gases may be mixed with the charge air only after they have been cooled. Exhaust gas recirculation coolers (EGR) from Kelvion transfer the heat to sea water or treated fresh water. They feature finned-tube configurations and geometric fin characteristics for maximum efficiency: this minimizes contamination on the gas-side cooling surface. In addition, special structures embossed on the surfaces of the fins create turbulence to ensure that the gas to be cooled efficiently flows through all areas of the heat exchanger.
This maximizes heat transfer. Kelvion exhaust gas recirculation coolers consist of stainless steel that is temperature- and corrosion resistant and that offers long service life. For four-stroke engines, the following variants are available: a high-temperature version for exhaust temperatures up to 700 °C, and a low-temperature with downstream drain for exhaust gases up to a maximum of 200 °C. Kelvion exhaust gas recirculation coolers are likewise available for two-stroke diesel engines with performance in medium and top-level ranges. They offer extremely great corrosion resistance: which is necessary owing to the increased corrosion danger for two-stroke diesel engines resulting from the upstream scrubber installed in the gas line.