In order to develop the high efficiency and cost-effective particle removal technology, a novel particle removal unit combined flue gas condensation and acoustic agglomeration was designed based on theoretical analysis. The performance of the designed combined particle removal unit was evaluated by the laboratory scale experiments. Compared with the single external field of sound or condensation, the combination of the two external fields made the removal efficiency higher. The maximum total removal efficiency could be up to 70% when the sound frequency was 1500 Hz, the sound pressure level (SPL) was 141 dB, and the cooling water flow rate was 560 L/h. With the increase of flue gas temperature drop, the removal efficiency increased. In addition, more waste water and heat could be recovered from the flue gas. There was an optimal sound frequency range of 1500–2000 Hz for the combined particle removal unit, and the removal efficiency decreased whether the sound frequency increased or decreased. The removal efficiency increased with the rise of SPL, but the considerable improvement was obtained only when the SPL exceeded 120 dB. Therefore, there was an SPL threshold for the application of combined particle removal unit. Through the techno-economic comparisons with other technologies, the novel particle removal unit was proved to be a highly efficient and cost-effective particle removal technology.

为了发展高效，经济的除尘技术，在理论分析的基础上，设计了一种结合烟气冷凝和声团聚的新型除尘装置。通过实验室规模的实验评估了设计的组合式颗粒去除装置的性能。与单个外部声场或凝结声场相比，两个外部声场的结合使去除效率更高。当声频为1500 Hz，声压级（SPL）为141 dB，冷却水流量为560 L / h时，最大总去除效率可高达70％。随着烟气温度下降的增加，去除效率提高。另外，可以从烟道气中回收更多的废水和热量。组合式颗粒去除装置的最佳声频范围为1500–2000 Hz，无论声频增加还是减少，去除效率都会降低。去除效率随着SPL的增加而增加，但是只有在SPL超过120 dB时才能获得相当大的改善。因此，对于组合式颗粒去除装置的应用存在一个SPL阈值。通过与其他技术的技术经济比较，该新型颗粒去除装置被证明是一种高效且具有成本效益的颗粒去除技术。但是只有当SPL超过120 dB时，才能获得可观的改善。因此，对于组合式颗粒去除装置的应用存在一个SPL阈值。通过与其他技术的技术经济比较，该新型颗粒去除装置被证明是一种高效且具有成本效益的颗粒去除技术。但是只有当SPL超过120 dB时，才能获得可观的改善。因此，对于组合式颗粒去除装置的应用存在一个SPL阈值。通过与其他技术的技术经济比较，该新型颗粒去除装置被证明是一种高效且具有成本效益的颗粒去除技术。