ISRO Conducts Short-Duration Hot Test of Semicryogenic Engine at IPRC

Why in the News

The Indian Space Research Organisation (ISRO) has successfully conducted a short-duration hot test of its semicryogenic engine at the ISRO Propulsion Complex (IPRC), Mahendragiri, Tamil Nadu, on April 24, 2025.

The Indian Space Research Organisation (ISRO) achieved another significant breakthrough in its propulsion technology by successfully conducting a short-duration hot test of its semicryogenic engine at the ISRO Propulsion Complex (IPRC) in Mahendragiri, Tamil Nadu. This test, conducted on April 24, 2025, marks the second milestone after the successful first hot test in March 2025. The latest ignition test validates crucial engine systems and sequences, essential for future launch vehicle missions.

About the Test

  • Testing Centre: ISRO Propulsion Complex (IPRC), Mahendragiri, Tamil Nadu.
  • Date of Test: April 24, 2025.
  • Type of Test: Short-duration hot test of Semicryogenic Engine (Engine Power Head Test Article).
  • Component Tested: Engine Power Head Test Article (excluding the thrust chamber).

Objective and Features

  • To validate the engine start-up sequence.
  • To ensure stable ignition and performance at 60% of the rated power level.

To examine the operation of crucial subsystems like,

  • Low-pressure turbo pumps
  • High-pressure turbo pumps
  • Pre-burner
  • Associated control systems.

Key Results

  • The engine was successfully ignited.
  • It operated up to 60% of its rated capacity.
  • Stable and controlled performance was achieved.

Importance of the Test

  • It is part of a series of evaluations planned for the semicryogenic engine development.
  • Provides critical data for finalising the operational sequencing of the complete engine system.
  • Enhances ISRO’s ability to develop more powerful and efficient launch vehicles.

Future Plan

  • Further qualification tests are scheduled.
  • Comprehensive validation of the full semicryogenic engine.
  • Ultimate goal: Integration into ISRO’s future launch vehicles to enhance payload capacity and reduce launch costs.
Summary/Static Details
Why in the news? ISRO Conducts Short-Duration Hot Test of Semicryogenic Engine at IPRC
Organisation ISRO
Test Location ISRO Propulsion Complex (IPRC), Mahendragiri, Tamil Nadu
First Hot Test March 28, 2025
Date of Second Test April 24, 2025
Engine Tested Semicryogenic Engine (Engine Power Head Test Article)
Power Achieved 60% of rated power level
Main Subsystems Tested Turbo pumps (low and high pressure), pre-burner, control systems
Objective Validate engine start-up sequence and subsystem performance
Future Steps Conduct qualification tests; integrate engine into launch vehicles

Shivam

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