Analysis and Optimization on Configuration Scheme of New High Efficient 220 MW Subcritical Turbine
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Abstract
Based on the demand of EPC contract for MAO KHE 2×220 MW thermal power plant project in VIETNAM, after analyzing the technology and economy in detail, comparing with the different characters between 200 MW superhigh pressure turbine and 300 MW subcritical turbine, the subcritical parameters were introduced in the 220 MW turbine. By Optimizing blade type, reducing seal leakage and improving the efficiency of the turbine cylinder, the heat consumption rate decreased to 8 026 kJ/kWh. After the turbine operating successfully, each unit can save standard coal equivalent 10 161.5 ton per year. Therefore, it will improve the economy of power plant and create a greater economic benefits. Furthermore, it can provide a good reference for choosing high efficient turbine in the same class power unit.
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