Sökning: "liquid water"

Visar resultat 31 - 35 av 378 uppsatser innehållade orden liquid water.

  1. 31. Real time estimations of kLa and viscosity in a fermentation pilot plant

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Arvid Norberg; [2022]
    Nyckelord :Oxygen transfer; Viscosity; Fermentation; Biotechnology; Direct method; kLa; OUR; DO; Online monitoring; Soft sensor; Fungus; Fungal fermentation; A. oryzae; A. niger; Herschel-Bulkley; Power law; Shear thinning; Novozymes; Enzymes; Technology and Engineering;

    Sammanfattning : Fermentation is a process that utilizes live microorganisms to produce different biological products such as enzymes. The oxygen mass transfer rate is often the limiting factor in aerobic fermentations and thereby an important process parameter. LÄS MER

  3. 32. The effect of temperature on the chemical stability of Vitamin C in a cosmetic product – Development of an HPLC-method for quantitative analysis

    Master-uppsats, KTH/Tillämpad fysikalisk kemi

    Författare :Sofia Thuresson; [2022]
    Nyckelord :Vitamin C; HPLC; Stability; Degradation; Antioxidant; Vitamin C; HPLC; Stabilitet; Nedbrytning; Antioxidant;

    Sammanfattning : Vitamin C är en populär ingrediens i hudvårdsprodukter, bland annat på grund av dess positiva effekter på kollagen-produktionen i huden och dess antioxidativa egenskaper. Dessvärre är vitamin C en känslig ingrediens som lätt bryts ned av ljus, syre, hög temperatur eller fel pH-värde. LÄS MER

  4. 33. Potential of tall oil pitch as phase change material in lignin-shelled hybrid nanocapsules for thermal energy storage.

    Master-uppsats, Mittuniversitetet/Institutionen för kemiteknik

    Författare :Helena Viberg Nissilä; [2022]
    Nyckelord :phase change materials PCM ; tall oil pitch TOP ; lignin; nanocapsules; hybrid material; thermal storage;

    Sammanfattning : A prospect in utilizing thermal energy in development of energy systems is by the useof phase change materials (PCMs). PCMs are materials that can store and releaseenergy during phase changes, e.g. from solid to liquid. LÄS MER

  5. 34. Experimental assessment of properties for a non-aqueous and precipitating alkanolamine absorption system

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Erik Robertsson; [2022]
    Nyckelord :AMP; DMSO; CCS; BE-CCS; Viscosity; Density; Freezing Temperature; Chemical Engineering; Technology and Engineering;

    Sammanfattning : With increasing atmospheric carbon dioxide (CO2) concentrations, energy efficient carbon capture and storage (CCS) technologies could prove important to enable reductions in the global CO2 emissions. The aim was to investigate a novel, non-aqueous, and precipitating chemical absorption system of dimethyl sulfoxide (DMSO) and 2-amino-2-methyl-1-propanol (AMP), which forms solid carbamate salt crystals with CO2. LÄS MER

  7. 35. TOTEN. A lighting installation, an ode to rain

    Magister-uppsats, KTH/Ljusdesign

    Författare :Monica Marin; [2022]
    Nyckelord :rainwater; optical illusion; refraction; communication; colors;

    Sammanfattning : In a society where people are always making plans and running in-between places, uncontrollable scenarios, such as rain, can be read as mere obstacles to the much acclaimed ‘routine’. With a strong appreciation for unexpected events, I instead want to propose a solution to make people approach rain in a more curious way, building for it a celebrative setting. LÄS MER