Blar i Institutt for kjemisk prosessteknologi på forfatter "Nekså, Petter"
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Experimental Observation of CO2 Dry-ice Behavior in an Evaporator/Sublimator
Yamasaki, Haruhiko; Yamaguchi, Hiroshi; Hattori, Kazuyuki; Nekså, Petter (Journal article; Peer reviewed, 2017)In the evaporator/sublimator process of CO2 (R744) ultra-low temperature cascade heat pump system, it is known, as a problem, that dry-ice blockage makes the system operation fail. The design of an expanding channel for ... -
Systematic design of advanced control structures
Lúa, Adriana Reyes (Doctoral theses at NTNU;2020:71, Doctoral thesis, 2019)PID-based advanced control structures are commonly used in process industries. However, their design mostly relies on the experience of the control and process engineers, and not always considers optimal operation. This ...