Standardized Elemental Basis for Gas-Turbine Engine Heat Exchangers is the Key Factor for Their Cost

• 出 处: Journal of Thermal Science
• 发表日期: 2001年03期
• 关键词: Turbine Reduction bundle dimensions similarity nitride sizes fabrication boron e

The competitiveness of the small gas turbine units (GTUs) (Ne<300 kW) in the world power market is dependent on bath the maintenance expenses and the capital costs of production. Reduction in the maintenance expenditures could be achieved by increasing the plant efficiency. This task could be solved by some methods: increasing the cycle inlet temperature TIT, getting the cycle more complex (use of heat regeneration and compressed air intermediate cooling), cutting the power consumption on heat-stressed parts cooling. Putting the above into effect is linked with introduction of novel structural materials, a sharp increase in the mass-size values and the plant manufacture expenditures, in particular, at provision of its self-regulation. In connection with the above, the development of the combined metal-ceramic airheaters and standardization of the elemental basis of the metal gas-gas heat exchangers will promote reduction in the expenditures of the maintenance and the manufacture of the small-size independent power GTEs.

The competitiveness of the small gas turbine units (GTUs) (Ne <300 kW) in the world power market is dependent on bath the maintenance expenses and the capital costs of production. Reduction in the maintenance expenditures could be achieved by increasing the plant efficiency. This task could be solved by some methods: increasing the cycle inlet temperature TIT, getting the cycle more complex (use of heat regeneration and compressed air intermediate cooling), cutting the power consumption on heat-stressed parts cooling. Putting the above into effect linked with introduction of novel structural materials, a sharp increase in the mass-size values ​​and the plant manufacture expenditures, in particular, at provision of its self-regulation. In connection with the above, the development of the combined metal-ceramic airheaters and standardization of the elemental basis of the metal gas-gas heat exchangers will promote reduction in the expenditures of the maintenance and the manufacture of the small-size independent power GTEs.