HRSGs and boilers |
How infrasound reduces the need for sootblowing: Thai experience
reports successful application of its infrasound
Infrasound equipment installed in Thai paper mill boiler
The infrasound cleaning system was installed to reduce soot accumulation on the heat transfer superheater. The goal was to achieve at least a 50% reduction in steam sootblowing while maintaining overall energy efficiency. The installation of infrasound cleaning did indeed enable a 50% reduction in consumption; less wear on heated surfaces; and describes as “slightly more challenging fuel mix conditions during the infrasound period.” The cleaning technique employs long oscillations in the boiler flue gas that remove deposits on heat transfer surfaces.
Czechia, Taiwan, USA and Saudi Arabia
Among significant HRSG projects announced by NEM Energy so far this year was an agreement with Metrostav to supply two state-of-the-art heat plant will also provide district heating. The NEM HRSGs will incorporate district heating modules that ensure a dependable heat supply to the The new natural gas fuelled combined cycle plant will replace coal 2fired units at the power The NEM supplied heat recovery steam generators are being designed as vertical- exhaust-gas-flow drum type HRSGs employing a very modular design. The modular units will be the client to install the units in a very short time frame with less welding requirements on site when gas-flow heat recovery steam generator. The reduced construction time saves the client time modular installations worldwide.
NEM Energy has also reported an order for heat recovery steam generators for a project in
will be installed behind two Siemens Energy SGT6-9000HL gas turbines for the Kuo Kuang 2 growing energy demand in Taiwan with time supporting the shift from coal. efficient power supply to its customers.” The new power plant will be equipped with TM
giving the plant enhanced fast start and allowing it to “operate in harmony with the fluctuating renewables on the grid.”
A further HRSG project reported by NEM expected to be in operation by the end of 2028. The order was placed by Spanish company procurement and construction contractor for the Saudi project. NEM Energy notes that it already has numerous HRSG units in operation across Saudi Arabia.
NEM Energy projects in
Combined cycle plant with NEM exhaust- gas-bypass-equipped heat recovery steam generators.
12 | October 2025|
www.modernpowersystems.com
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