Now showing items 111-115 of 115
Multiphysics Impact Analysis of Carbon Fiber Reinforced Polymer (CFRP) Shell
(Journal article; Peer reviewed, 2019-07-30)
With increasing popularity of Carbon Fiber Reinforced Polymer (CFRP) over time, the need for research in the field has increased dramatically. Many industries, i.e. aeronautical, automotive, and marine are opting to install carbon fiber in their structures to account for harsh environments like cold temperatures applications, but the research on the temperature exposure behavior of the materials are ...
Performance and Design Study of Optimized LNG Mixed Fluid Cascade Processes
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-26)
Mixed Fluid Cascade (MFC) processes are often claimed to be one of the most efficient methods to liquefy natural gas. Their performance depends on both operating conditions such as ambient temperature, and system design parameters such as exchanger sizes. The performance of the standard MFC process can be further improved by modifying the design with additional equipment, such as liquid refrigerant ...
A comparative study of CO2 heat pump performance for combined space and hot water heating
(Journal article; Peer reviewed, 2019-08-20)
Heat pumps used for combined space and hot water heating are often used in modern energy-efficient buildings. Performance depends on both system design (exchanger sizes, compressor efficiency, etc.) and operating conditions (inlet water temperature, ratio between space and water heating, etc.). Designs using both CO2 and HFCs, such as R410A, are available, but the relative performance of these is ...
Interpreting teaching for conceptual and for procedural knowledge in a teaching video about linear algebra
(Journal article; Tidsskriftartikkel, 2018)
The aim of this study is to investigate teaching videos about mathematics, seeking to uncover research-based foundations for their quality. By drawing on the notions of procedural and conceptual knowledge, the research was operationalized by asking professionals in undergraduate mathematics education (n=18) to interpret sections of a teaching video. The video dealt with a topic in linear algebra. ...
Droplet distribution spectrum effects on dry ice growth on cylinders
(Journal article; Peer reviewed, 2019-01-06)
A detailed parametric analytical study along with a series of viscid multiphase numerical simulations of ice accretion were performed in comparison with experimental data of ice accretion on a 30 mm diameter cylinder. The study was performed for droplet distribution spectra, Langmuir (A-J), in addition to an experimental droplet distribution obtained in an icing tunnel.<br>Analysis shows that droplet ...