Preprint Technical Note Version 1 Preserved in Portico This version is not peer-reviewed

Heat Transfer Equipment for Space Shuttle Orbiter, Its Main Engine (Aerojet Rocketdyne RS 25), Thermal (Passive and Active), Environmental Control and Life Support System

Version 1 : Received: 10 June 2022 / Approved: 13 June 2022 / Online: 13 June 2022 (10:07:32 CEST)

How to cite: Rafique, M.M.A. Heat Transfer Equipment for Space Shuttle Orbiter, Its Main Engine (Aerojet Rocketdyne RS 25), Thermal (Passive and Active), Environmental Control and Life Support System. Preprints 2022, 2022060182. https://doi.org/10.20944/preprints202206.0182.v1 Rafique, M.M.A. Heat Transfer Equipment for Space Shuttle Orbiter, Its Main Engine (Aerojet Rocketdyne RS 25), Thermal (Passive and Active), Environmental Control and Life Support System. Preprints 2022, 2022060182. https://doi.org/10.20944/preprints202206.0182.v1

Abstract

Space shuttle has been a hall mark of American space program since its inception. Despite its temporary shutdown few years ago, with the recent interest in space exploration which includes revitalizing human outpost in microgravity and transportation required to build it, realize other experiments (e.g. in space telescopes, in space manufacturing) and interplanetary voyages, it has regained attention. Its superior design, manufacturing, materials, performance, durability, and efficiency place it among the best, in fact, the only effort by mankind to build a reusable craft horizontally, launch vertically like a rocket and fly back like a plane. Various requirements emerge during its design (thermal, fluid, acoustics, vibration and structural) and design of its main engine (Aerojet Rocketdyne RS 25) which requires considerable attention, heat transfer being most important. This facilitated and necessitated use of various types of heat exchangers such as single coil, heat pipe, built in internal heat exchanger (IHEX), external heat exchanger (EHEX), condensing heat exchanger (CHEX), Interface heat exchangers (InHEX), regenerative heat exchanger (RHEX) and compact heat exchangers (CoHEX), change, manipulate and optimize their configurations in piping and instrumentation diagrams (PIDs). In this short narrative, an effort has been made to summarize them, and their developments over time with a focus on the application, design, manufacturing, materials, and performance (in service and final operation).

Keywords

heat transfer; thermodynamics; evaporation; condensation; regeneration

Subject

Engineering, Mechanical Engineering

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