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Specific energy consumption of vacuum filtration: Experimental evaluation using a pilot-scale horizontal belt filter
(Taylor and Francis Inc., 2019-03-07)
Horizontal vacuum belt filters are used for continuous solid–liquid separation in a wide variety of industrial processes. Despite the low pressure difference (usually Δp < 0.8 bar), the high air pumping requirement to ...
Bothnian Bay Hydrogen Valley – Research report
(LUT University, 2021-10-31)
This report is part of a commissioned research, ordered jointly by Fortum and St1. The re-search was carried out by LUT University between 1.4.2021 – 31.10.2021. The purpose of the study was to perform a hydrogen ecosystem ...
Modification of face masks with zeolite imidazolate framework-8: A tool for hindering the spread of COVID-19 infection
(Elsevier, 2022-02-21)
The worldwide spread of the SARS-CoV-2 virus has continued to accelerate, putting a considerable burden on public health, safety, and the global economy. Taking into consideration that the main route of virus transmission ...
Applicability of Power-Line Communications to Data Transfer of On-line Condition Monitoring of Electrical Drives
(2003-08-29)
The research of power-line communications has been concentrated on home automation, broadband indoor communications and broadband data transfer in a low voltage distribution network between home andtransformer station. ...
Neo-Carbon Food concept: A pilot-scale hybrid biological–inorganic system with direct air capture of carbon dioxide
(Elsevier, 2020-08-22)
The pace at which the human population is growing raises serious concerns related to food security while at the same time conventional agriculture-based food production is becoming a major cause of environmental pollution ...
Variable-speed-drive-based method for the cost optimization of air filter replacement timing
(Elsevier, 2021-03-13)
The flow resistance of air filters accounts for a significant share of the electric energy consumed by fan systems. Due to their inevitable fouling, filters must be replaced periodically. This paper presents a novel ...
Mitigation of inverter-induced noncirculating bearing currents by introducing grounded electrodes into stator slot openings
(IEEE, 2020-12-23)
Modern converter-supplied AC motors are exposed to bearing currents. Despite extensive research and development, the industry still does not have a final solution with acceptable cost and high efficiency. This paper focuses ...
Comparison of Model-Based Flow Rate Estimation Methods in Frequency-Converter-Driven Pumps and Fans
(Springer, 2014)
Fluid handling systems such as pump and fan systems are found to have a significant potential for energy efficiency improvements. To deliver the energy saving potential, there is a need for easily implementable methods to ...
A life cycle environmental sustainability analysis of microbial protein production via power-to-food approaches
(Springer, 2020-09-21)
Purpose
Renewable energy produced from wind turbines and solar photovoltaics (PV) has rapidly increased its share in global energy markets. At the same time, interest in producing hydrocarbons via power-to-X (PtX) ...
Power quality and reactive power of water electrolyzers supplied with thyristor converters
(Elsevier, 2020-03-28)
Industrial water electrolyzers apply direct current in kiloampere ranges. Therefore, rectifiers are typically based on thyristors despite the high amplitude current fluctuation excited by the rectifier. This paper studies ...