Essays about: "freezing technology"

Showing result 16 - 20 of 64 essays containing the words freezing technology.

  1. 16. An Initial Analysis of Slurry Transportation in Subarctic Environment

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Wilhelm Friberg; [2021]
    Keywords : Slurry Transport;

    Abstract : In today’s economy, it is important to have a sustainable business model where as little as possible goes to waste or finding solutions to create something useful out of by-products. Therefore, LKAB are looking to make a large investment into creating an infrastructure of several plants to turn tailings from the production of iron ore into usable products for several industries which LKAB has designated project ReeMAP (Rear Earth Elements and MonoAmmonium Phosphate). READ MORE

  3. 17. Frosting and Defrosting on Air Source Heat Pump Evaporators

    University essay from KTH/Energiteknik

    Author : Camilla Sandström; [2021]
    Keywords : ;

    Abstract : Air source heat pumps has become increasingly popular for residential households as they are considered an energy efficient alternative on the heating market. The air source heat pumps use the outdoor air as heat source and can operate in cold climates around -15 to -20°C, but as the temperatures drops below 6°C the heat pump experiences problems with frost accumulating on the heat exchanger. READ MORE

  4. 18. Cryoballoon Catheters with sensors for treatment of AF

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Axel Anderberg; [2021]
    Keywords : Atrial fibrillation; balloon; catheter; cryoablation; flexible electronics; Ballong; flexibel elektronik; förmaksflimmer; kateter; kryoablation;

    Abstract : Atrial fibrillation is a cardiac condition in which the heart rate is abnormally fast and/or irregular. While not yet proven to be fatal on its own, it severely increases the probability of developing further medical conditions including a five times higher risk of getting stroke. READ MORE

  5. 19. Aqua Ammonia as Secondary Fluid in Ice Rink Applications

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Brianna Kilberg; [2020]
    Keywords : Ice rink; secondary fluid; aqua ammonia; ammonia water; thermophysical properties; corrosion; pressure drop; pumping power; refrigeration;

    Abstract : Refrigerant management is crucial in the attempts to slow climate change. Emissions from the refrigeration sector are primarily due to poor management and unsafe destruction of refrigerants currently in circulation. Safe refrigerant management and improving system operating efficiency can result in a reduction of emissions. READ MORE

  6. 20. Tamper Protection for Cryptographic Hardware : A survey and analysis of state-of-the-art tamper protection for communication devices handling cryptographic keys

    University essay from Linköpings universitet/Informationskodning

    Author : Emil Johansson; [2020]
    Keywords : ;

    Abstract : This master's thesis was conducted at Sectra Communications AB, where the aim of the thesis was to investigate the state of the art of physical hardware tampering attacks and corresponding protections and mitigations, and finally combining this to a protection model that conforms to the FIPS 140-2 standard. The methods used to investigate and evaluate the different attacks were literature searching, looking for articles presenting different attacks that have been used against real targets, and attacks that there are no records of being attempted on a real target, but are theoretically possible. READ MORE