Dissertations in Acoustics and Audio Signal Processing
This page lists doctoral dissertations in acoustics and audio signal processing, which have been conducted at the Aalto Acoustics Lab since the year 2010.
Prominent art at Aalto University
Aalto University promotes visibility and impact of art and creativity both in society and at our own campus. Aalto University uses one percent of building costs to fund art.
How we are organized
Research in the HYBER Centre of Excellence is organized into three broad research areas: composites, colloids, and dynamics.
Teaching at Aalto Acoustics Lab
Professors of the Aalto Acoustics Lab provide Master's level teaching in the major of Acoustics and Audio Technology, and doctoral courses in the research field of Acoustics and Speech Technology.
The application period for Master's studies in Acoustics and Audio Technology is from 30 Nov 2023 until 2 Jan 2024!
Aalto University Academic Affairs Committee
The Aalto University Academic Affairs Committee (AAC) is a joint, university-level administrative body consisting of several members. It serves to promote a high quality of research, teaching, and artistic activity.
TwinRotor
The TwinRotor project conducted between 2017 and 2019 aimed to create a digital twin of a rotor system. A proof of concept digital twin system was conceived during the project and a data driven machine learning model for the dynamic behaviour of the rotor was created. Further applications of similar data driven methods are virtual sensors utilizing collected data from a fleet of installed products, which can improve condition monitoring and predictive maintenance services.
SmartCom
The project will develop and establish the basis for an unambiguous, universal, safe and uniform communication of metrological data in the Internet of Things (IoT) and Industry 4.0.
DigiTwin research project
The DigiTwin research project utilizes the overhead crane equipped with extensive digital systems that Konecranes donated ºÚÁÏÍø University in 2016. The highest potential of digital twins and the focus of the research project is in the coupling of the crane and its digital twin with product configuration, product design, and product life cycle. Â
Collaborators
At this point potential partners for commercializing the process have been identified as lime and fertilizer producers, waste transportation and processing companies and companies that offer process solutions.
Process and optimization
Optimization tests were run with a lab scale pilot plant. The reject water tested came from HSY (Helsingin seudun ympäristöpalvelut, Environmental services for Helsinki area) Viikinmäki waste water treatment plant and HSY Ämmässuo biogas plant.
Nitrogen availability
There are several types of waste which can be recycled after major or minor treatment. Cattle manure and compost from organic waste has been reused for several decades but there are other waste streams which are not easily acceptable to use in agriculture.
Marketing potential
The reject waters of digesters in Finland have an interesting marketing potential for NPHarvest-technique. The amount of biogas plants has increased over the last decade: in 2017 total amount of 330 000 tons of sludge or organic waste was digested. Reject water was produced over 5 million cubic meters.
Economic feasibility
A rough estimate of the economic viability was prepared. It is the comparison between traditional process costs and NPHarvest process costs.
Results
Our results have been divided into two sections: marketing potential and process. Marketing potential includes the economic aspect of the project while process focuses on the technical nature.
Background of the project
Removing nitrogen and phosphorous from wastewater is expensive and consumes lot of energy. On the other hand also fertilizer production consumes energy and resources. Using different liquid, nutrient rich waste fractions as fertilizer would be a good solution to this problem.
Education on Industrial Internet
Aalto University offers students and industry education on Industrial Internet.