Question
Download Solution PDFHow does the spear valve inside the nozzle enhance the operational efficiency of a Pelton turbine?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFPelton wheel
The
Pelton turbine is a tangential flow impulse turbine that transforms water's potential energy into kinetic energy in the form of a water jet.
Function of the spear valve:
In a Pelton turbine, the spear valve (or needle valve) is positioned inside the nozzle and plays a crucial role in:
- Regulating the flow rate of water hitting the turbine buckets.
- Adjusting the jet velocity to match varying load demands.
- Ensuring efficient energy conversion under fluctuating operating conditions without causing water wastage or mechanical stress.
This dynamic control enhances the turbine's operational efficiency.
Last updated on Jun 16, 2025
-> RRB JE CBT 2 answer key 2025 for June 4 exam has been released at the official website.
-> Check Your Marks via RRB JE CBT 2 Rank Calculator 2025
-> RRB JE CBT 2 admit card 2025 has been released.
-> RRB JE CBT 2 city intimation slip 2025 for June 4 exam has been released at the official website.
-> RRB JE CBT 2 Cancelled Shift Exam 2025 will be conducted on June 4, 2025 in offline mode.
-> RRB JE CBT 2 Exam Analysis 2025 is Out, Candidates analysis their exam according to Shift 1 and 2 Questions and Answers.
-> The RRB JE Notification 2024 was released for 7951 vacancies for various posts of Junior Engineer, Depot Material Superintendent, Chemical & Metallurgical Assistant, Chemical Supervisor (Research) and Metallurgical Supervisor (Research).
-> The selection process includes CBT 1, CBT 2, and Document Verification & Medical Test.
-> The candidates who will be selected will get an approximate salary range between Rs. 13,500 to Rs. 38,425.
-> Attempt RRB JE Free Current Affairs Mock Test here
-> Enhance your preparation with the RRB JE Previous Year Papers.