Essays about: "nrel"

Showing result 1 - 5 of 12 essays containing the word nrel.

1. 1. Investigation of Milled Wood Lignin Extraction Using Enzymatic Hydrolysis for Application in Hydrophobic Barriers in the Food Packaging Industry

   University essay from Lunds universitet/Kemiteknik (CI)

   Author : Anna Wagne; [2023]
   Keywords : Lignin; extraction; hydrophobicity; chemical engineering; Technology and Engineering;

   Abstract : The objective of this report is twofold: to optimise the extraction method of lignin from spruce altering a few process parameters and to investigate the use of lignin as a hydrophobic barrier in food applications. The process used was STEX (steam explosion) pretreatment followed by enzymatic hydrolysis and MWL (milled wood lignin) extraction using a mixture of dioxane-water. READ MORE

3. 2. Economic analysis of ethanol and biogas production in Sri Lanka using waste as feedstock

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

   Author : Josef Samak; [2022]
   Keywords : ;

   Abstract : The purpose of the report is divided into two parts. The first part is to make an economic analysis for a potential ethanol and biogas plant that uses waste as its raw material instead of the conventional method of planting and cultivating raw materials for production. READ MORE

4. 3. QUANTIFYING ERRORS IN PITCH ANGLE POSITION USING BEM THEORY

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Sai Varun Kollappillai Murugan; [2021]
   Keywords : NREL; Qblade; SCADA; Pitch angle errors; Wind turbines;

   Abstract : The wind industry is always seeking ways to better understand the performance of a wind turbine and improve its efficiency. During the operation phase and maintenance, wind turbines go through regular optimization. Due to the regular change in wind speed and direction, wind turbines need to be regulated and positioned accordingly. READ MORE

5. 4. Sn-Pb-mixtures for Perovskite Solar Cells

   University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

   Author : Fanny Amanda Karolina Baumann; [2020]
   Keywords : Perovskite Solar Cells; PSC; Sn; Tin; Lead; Pb; FAPI; Renewable Energy; Compositional Engineering; Interfaces; Morphology; PL; Photoluminescence; Thin film stability; Technology and Engineering;

   Abstract : Perovskite research has quickly gone from non-existent to one of the biggest reseach areas in Photo- voltaics. There are still many questions to be solved regarding the stability, environmental impact, reproducible large area devices, efficiency and module fabrication cost of Perovskite Solar Cells, PSCs, before commercial up-scaling. READ MORE

6. 5. Machine Learning for Solar Energy Prediction

   University essay from Högskolan i Gävle/Avdelningen för elektronik, matematik och naturvetenskap

   Author : Claudia Ferrer Martínez; [2018]
   Keywords : Machine Learning; Solar Energy; Forecasting; MATLAB; Supervised Learning; Regression Model;

   Abstract : This thesis consists of the study of different Machine Learning models used to predict solar power data in photovoltaic plants. The process of implement a model of Machine Learning will be reviewed step by step: to collect the data, to pre-process the data in order to make it able to use as input for the model, to divide the data into training data and testing data, to train the Machine Learning algorithm with the training data, to evaluate the algorithm with the testing data, and to make the necessary changes to achieve the best results. READ MORE