author = "Silva, D{\'e}bora de Oliveira and Riehl, Roger Ribeiro",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)}",
                title = "Experimental and Numerical Study of the Thermal Performance of 
                         Water-Stainless Steel Heat Pipes Operating in Mid- Level 
            booktitle = "Proceedings...",
                 year = "2018",
         organization = "Heat Powered Cycles Conference",
             keywords = "heat pipe, experimental heat pipe, simulation, thermal 
             abstract = "Thermal performance of water-stainless steel screen mesh wick heat 
                         pipes was investigated in this study. Three screen mesh wick heat 
                         pipes were fabricated and tested all different inclinations, and 
                         their thermal conductance in different modes were compared 
                         (experimental, calculated and numerical). The different mesh 
                         numbers can bring different meanings in terms of both liquid flow 
                         resistance and capillary pumping. The aim was to analyze the 
                         thermal behavior in the permanent and transient regime for each 
                         power when operated with the power step and power cycles in 
                         mid-level temperature, for use in several industrial and aerospace 
                         applications when those levels of temperature are required. The 
                         calculated thermal conductances based on the thermal resistance 
                         analysis were used to be compared with the obtained experimental 
                         thermal conductances. An adjustment factor was calculated with the 
                         objective of being used in the results of the calculated thermal 
                         conductances to bring them closer to the actual results that were 
                         obtained experimentally with the water-stainless heat pipes. The 
                         numerical approaches undertaken in analysing the transient thermal 
                         performance was used the multifluid model where two different 
                         fluid zone were created to represent vapour flow in the middle and 
                         liquid flow in the porous wick. The predicted surface temperatures 
                         with varying heat inputs (25 W - 125 W) from the numerical model 
                         and experimental tests were used for thermal conductance 
                         (numerical and experimental) were compared with calculated thermal 
  conference-location = "Germany",
      conference-year = "16-19 sept.",
             language = "en",
           targetfile = "silva_experimental.pdf",
        urlaccessdate = "23 nov. 2020"