![](/assets/images/picto-drapeau-france-3a76576a5d60a512053b4612ab58dae5.png)
1. Internal cooling for turbine blades
Since the 1960s, cooling techniques have evolved considerably (figure 1 ). Initially, blades were cooled using radial pipes. In the 1970s, multiple-feed systems with film cooling were developed. For today's gas turbines, external heat transfer techniques using film cooling and internal convection have been significantly improved: multi-pass channels with turbulence promoters, fine needle-like fins (or fine pine, as the English term will be used in the rest of this text), impact jet cooling.
1.1 Examples of cooling techniques
In the following, we will briefly describe the blade cooling techniques developed by GE Aircraft Engine...
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference
This article is included in
Hydraulic, aerodynamic and thermal machines
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Internal cooling for turbine blades
References
Exclusive to subscribers. 97% yet to be discovered!
You do not have access to this resource.
Click here to request your free trial access!
Already subscribed? Log in!
![](/assets/images/logo-eti-286623ed91fa802ce039246e516e5852.png)
The Ultimate Scientific and Technical Reference