This effort will design and demonstrate by a computer simulation a typical spacecraft temperature-control system system that uses a non-azeotropic, two-phase fluid as the working medium. the innovation lies in the use of the non-azeotropic fluid. existing research and existing designs are based on… More

We propose to design and evaluate three novel regenerator concepts that have the potential for significantly improvingthe coefficient of performance of stirling-cycle cryocoolersat temperatures below 20 k. the innovations consist of two types of active regenerators and a novel combination of… More

We propose to develop a fortran computer program to determine the thermal radiant interchange factors among real, non-diffuse, non-specular surfaces. the innovation lies in our solution procedure, which yields, in one step, an exact solution to the computational problem. previous methods for real… More