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After a tank has been exposed to crash violence, or an external fire, it might, in some situations, be judged dangerous to move the vessel due to the risk of a sudden tank rupture. Therefore, Swedish rescue services have a long history of using rifles to penetrate and therefore depressurize the vessels. In this paper, some first steps on providing guidance on the selection of ammunition and requirAfter a tank has been exposed to crash violence, or an external fire, it might, in some situations, be judged dangerous to move the vessel due to the risk of a sudden tank rupture. Therefore, Swedish rescue services have a long history of using rifles to penetrate and therefore depressurize the vessels. In this paper, some first steps on providing guidance on the selection of ammunition and requir

A major challenge in the design of electrochemical biodevices is to achieve fast rates of electron exchange between proteins and electrodes. In this work, we show that a significant increase in the direct electron transfer rate between a graphite electrode and Tobacco Peroxidase takes place when a surface exposed leucine, located in the vicinity of the heme pocket, is replaced by tryptophan. The a

Models for dynamic simulation of a parabolic trough concentrating solar power plant were developed in Modelica for the simulation software Dymola. The parabolic trough power plant has a two-­‐tank indirect thermal storage with solar salt for the ability to dispatch electric power later in the evening and during the night when little or no solar irradiation is present. The complete system consists

En grundläggande princip inom konkursrätten är att konkursboet inte ansvarar för gäldenärens tidigare förpliktelser. Miljörätten däremot är uppbyggd runt syftet att kunna utkräva ansvar från en stor krets av fysiska och juridiska personer, detta i syfte att skydda nuvarande och kommande generationer. Det problematiska är att kombinera dessa två lagstiftningar och syften. Syftet för den här framsA fundamental principle within the bankruptcy law is that the bankruptcy estate is not responsible for the debtor’s prior obligations. The environmental law is built around the purpose of enabling the enforcement system to demand accountability from a large group of corporations and persons. This, for the purpose of protecting present and future generations. An important matter is how to combine t

Power electronics are used to convert and control electrical power in many different ways, and can be said to be a cornerstone of almost all electrical energy management. For example, power electronics are used to efficiently convert voltage and current from solar cells or wind turbines into a form suitable for transmission over large distances. Power electronics are used to convert 3-phase AC vol

https://www.iea.lth.se/en/research/electrical-drive-systems - 2026-07-21

Post-harvest losses in the himalayan regions of Nepal and Bhutan are high, and current drying methods are in need of improvement. This report improves on a previously developed solar dryer design and evaluates thermal storage solutions for the ’SolarFood: Reducing post-harvest losses through improved solar drying’ project. This report uses experimental measurements to compare different dryer confi

The marine sector contributes significantly to global greenhouse gas (GHG) emissions and a reduction is required in the sector’s environmental impact to meet present climate change targets. This thesis conducts a well-to-wake life-cycle assessment of potential decarbonization solutions for the marine industry, aiming to identify the most promising alternative fuels and evaluate the impact of inclu

A novel insertion device for electron storage rings called the MAX-Wiggler has been constructed at MAX-lab. The MAX-Wiggler is a cold bore superconducting wiggler magnet with 47 3.5-T poles and. a period length of 61 mm aimed for the production of X-rays at the 1.5-GeV electron storage ring MAX-II at MAX-lab. The MAX-Wiggler consists of 98 racetrack coils connected in series in the superconducting

The terahertz region of the electromagnetic spectrum is an important research area allowing insights into fundamental science such as inter-molecular interactions, and with applications in the environmental, medical and security field. Using femtosecond lasers, it is possible to design compact and efficient terahertz generation schemes, resulting in few-cycle broadband pulses. This master thesis i

Recent developments in European energy policy reveal an increasing interest in implementing the so-called ‘Tradable White Certificate’ (TWC) schemes to improve energy efficiency. Based on three evaluation criteria (cost-effectiveness, environmental effectiveness and distributional equity) this paper analyses the implications of implementing a European-wide TWC scheme targeting the household and co

Four dilute-acid pretreated and hydrolysed lignocellulosic raw materials were evaluated as substrates for fermentative hydrogen production by Caldicellulosiruptor saccharolyticus. Their fermentability was ranked in the order: barley straw > wheat straw > corn stalk > corn cob. The content of 5-hydroxymethylfurfural (HMF) in medium with hydrolysates prepared from corn cob (1.0 g/L) and corn stalk (

Popular Abstract in Swedish Förbränningsmotorer används på flera platser i samhället där energi behöver göras tillgänglig i form av mekaniskt arbete eller elektrisk energi. Den kanske mest kända tillämpningen är som kraftkälla i en personbil. Förbränningsmotorerna har givetvis ett antal fördelar som bidragit till deras popularitet och omfattande användning - lågt pris, kompakthet, driftsäkerhet ocCurrent combustion engines provide excellent performance for vehicle propulsion and power generation. However, recent demands from society ask for higher efficiencies and lower emissions. These requirements are hard to meet with current technology and call for new solutions. Homogeneous Charge Compression Ignition, HCCI, offers a potential to combine high efficiency with very low emissions. It op

Swedish climate policy targets net zero greenhouse gases (GHG) by mid-century, with road transport independent of fossil fuels by 2030, requiring far-reaching changes in the way energy is used. Forest management is expected to support carbon sequestration and provide biomass for various uses, including energy. In this paper, we combine two energy scenarios with four forest scenarios and quantify G

A small-scale experiment for salinity-gradient solar pond has been constructed and operated at the Dead Sea area over a period of 3 months. The pond has a volume of 5m3 with dimensions of (L, H, W) as 2.0, 2.0 and 1,25 meter respectively. The two parameters temperature and salinity concentration profiles were evaluated through the measurements of the solar pond with respect to time. The experiment

An experiment for salinity-gradient solar pond has been constructed and operated at the Dead Sea area over a period of 3 months. The pond has a volume of 5m3 with dimensions of (L, H, W) as 2.0m, 2.0m and 1,25m respectively. The two parameters temperature and salinity concentration profiles were evaluated through the measurements of the solar pond with respect to time. The experimental result show