DEVELOPMENT OF NONTOXIC HEAT TRANSPORT FLUIDS FOR HABITAT TWO-PHASE THERMAL CONTROL SYSTEMS

THIS PHASE I PROJECT WILL DETERMINE THE FEASIBILITY OF USINGA COMPUTATIONAL CHEMISTRY DATABASE SYSTEM FOR THE DEVELOPMENT OF A NONTOXIC, TWO-PHASE, HEAT TRANSPORT FLUID FOR SPACECRAFT THERMAL CONTROL SYSTEMS. EXPERIMENTAL DATA ON THE PHYSICAL AND CHEMICAL PROPERTIES OF AS MANY COMPOUNDSAS POSSIBLE WILL BE ADDED TO THE DATABASE. A COMPUTATIONAL CHEMISTRY DATABASE SYSTEM WILL THEN BE USED TO PREDICT MOLECULES WITH IMPROVED PROPERTIES OVER PREVIOUS FLUIDS. THE PROPERTIES OF THE IMPROVED FLUIDS WILL THEN BE DETERMINED AND COMPARED WITH THE PREDICTION. THE PROPERTIESOF THE IMPROVED COMPOUNDS WILL BE ADDED TO THE DATABASE, EXPANDING AND IMPROVING IT. THUS, THE FOUNDATION FOR PHASE II WILL BE LAID BY DETERMINING THE FEASIBILITY OF THIS WORKING-FLUID DEVELOPMENT METHOD. PHASE II WILL CONTINUE THE ITERATIVE PROCESS STARTED IN PHASE I UNTIL THE SUITABLE FLUID IS DEVELOPED. THIS PHASE I PROJECT WILL DETERMINE THE FEASIBILITY OF USINGA COMPUTATIONAL CHEMISTRY DATABASE SYSTEM FOR THE DEVELOPMENT OF A NONTOXIC, TWO-PHASE, HEAT TRANSPORT FLUID FOR SPACECRAFT THERMAL CONTROL SYSTEMS. EXPERIMENTAL DATA ON THE PHYSICAL AND CHEMICAL PROPERTIES OF AS MANY COMPOUNDSAS POSSIBLE WILL BE ADDED TO THE DATABASE. A COMPUTATIONAL CHEMISTRY DATABASE SYSTEM WILL THEN BE USED TO PREDICT MOLECULES WITH IMPROVED PROPERTIES OVER PREVIOUS FLUIDS. THE PROPERTIES OF THE IMPROVED FLUIDS WILL THEN BE DETERMINED AND COMPARED WITH THE PREDICTION. THE PROPERTIESOF THE IMPROVED COMPOUNDS WILL BE ADDED TO THE DATABASE, EXPANDING AND IMPROVING IT. THUS, THE FOUNDATION FOR PHASE II WILL BE LAID BY DETERMINING THE FEASIBILITY OF THIS WORKING-FLUID DEVELOPMENT METHOD. PHASE II WILL CONTINUE THE ITERATIVE PROCESS STARTED IN PHASE I UNTIL THE SUITABLE FLUID IS DEVELOPED.