What type of air seal is used in the...

Question 1 / 270705eccef9fbacbc34ba4d46b25

Question 1 of 270705eccef9fbacbc34ba4d46b25

What type of air seal is used in the combustor and turbine midframe of a gas turbine?

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Question 1 of 27070

Q

What type of air seal is used in the combustor and turbine midframe of a gas turbine?

🔍 Key Concepts

• Typical sealing methods used in high-temperature sections of gas turbines • Characteristics of contact vs. non-contact air seals • Why turbine midframes need minimal wear and good sealing despite thermal expansion

💭 Think About

• Which seal designs can tolerate very high temperature and expansion without rubbing or rapid wear? • Which option is most commonly associated with gas turbine hot section air seals, especially between rotating and stationary parts? • Think about which seals are usually used for oil sealing vs. air sealing—which category fits the combustor/turbine area?

✅ Before You Answer

• Identify which seal types are contact seals (rub against a surface) and which are non-contact, clearance-type seals • Consider which design is noted in textbooks and manufacturer manuals as standard for gas turbine hot gas path sealing • Eliminate any options more commonly used for shaft oil seals or low-temperature service rather than combustor/turbine areas

Question 1 of 27070

Q

What type of air seal is used in the combustor and turbine midframe of a gas turbine?

A

Pneumatic carbon ring

B

Fishmouth

C

Labyrinth-Honeycomb

D

Lip-type

Question 1 / 270705eccef9fbacbc34ba4d46b25

Question 1 of 270705eccef9fbacbc34ba4d46b25

What type of air seal is used in the combustor and turbine midframe of a gas turbine?

Back

Question 1 of 27070

Q

What type of air seal is used in the combustor and turbine midframe of a gas turbine?

🔍 Key Concepts

• Typical sealing methods used in high-temperature sections of gas turbines • Characteristics of contact vs. non-contact air seals • Why turbine midframes need minimal wear and good sealing despite thermal expansion

💭 Think About

• Which seal designs can tolerate very high temperature and expansion without rubbing or rapid wear? • Which option is most commonly associated with gas turbine hot section air seals, especially between rotating and stationary parts? • Think about which seals are usually used for oil sealing vs. air sealing—which category fits the combustor/turbine area?

✅ Before You Answer

• Identify which seal types are contact seals (rub against a surface) and which are non-contact, clearance-type seals • Consider which design is noted in textbooks and manufacturer manuals as standard for gas turbine hot gas path sealing • Eliminate any options more commonly used for shaft oil seals or low-temperature service rather than combustor/turbine areas