@proceedings{1170, author = {Cronin Vining and G. Bennett}, title = {Power for Science and Exploration: Upgrading the General-Purpose Heat Source Radioisotope Thermoelectric Generator (GPHS-RTG)}, abstract = {

The General-Purpose Heat Source Radioisotope Thermoelectric Generator (GPHS-RTG)has been the workhorse nuclear power source of the space science community for over 20years having powered such challenging missions as Galileo, Ulysses, Cassini and NewHorizons. At ≥300 We beginning of life (BOL) power, the GPHS-RTG is the highestpoweredradioisotope power source (RPS) ever flown with the highest specific power (5.3We/kg). However, recent changes in the design of the GPHS fuel modules would reduce thenumber of modules that could be emplaced in the GPHS-RTG thereby reducing the power.This paper explores several options including modifications to the converter housing and theinsulation that could reclaim the advantages of the GPHS-RTG even with the new thicker,heavier GPHS modules. Coupled with the existence of over 3,100 GPHS-RTGthermoelectric elements (“unicouples”) it would be possible to power future outer planetmissions with the performance advantages of the original GPHS-RTG.

}, year = {2010}, journal = {46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 25 - 28 July 2010, Nashville, TN}, month = {07/2010}, publisher = {AIAA}, url = {https://cvining.com/system/files/articles/vining/Vining-JointPropulsionConference-2010.pdf}, language = {eng}, }