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Regulations to promote the application of renewable energy in the electricity sector are crucial to achieve the government’s target of increasing the share of renewable energy to 10 TWh within 10 years. Feed-In tariffs provides the highest certainty to accomplish a significant growth of renewable energy since it provide high certainty to investors and are easy to implement. For the design of a Fee

The world production of paper and paperboard products, which increased 3.3% per year since 1980, reached 243 million tonnes in 1991 and is expected to continue to grow by about 2.5% per year over the next decade. Consumption levels in 1990 ranged from 2.8 kg per capita in India to 313 kg per capita in the United States. The biggest producers of pulp are the United States, Canada and the Scandinavi

This master thesis contributed to a project financed by the Swedish Energy Agency and managed by the housing company Eksta AB in collaboration with the consulting Company WSP. The main aim of this master thesis was to perform a theoretical optimization on the usage of own used solar electricity by transferring the surplus PV between buildings in a demonstration area in a DC-microgrid. To achieve th

Experiences early in life strongly shape values, attitudes and behaviour and serve as reference points ever after. Those who grew up in a society where resources are scarce may behave differently in an affluent society than those who got used to affluence even as children. This hypothesis was tested among 600 households in a major Swedish city who responded to questions about energy related behavi

With growing urbanization and increase in energy demand for space heating and cooling in buildings, reliability, security, distribution of energy and its efficient end use is of utmost importance particularly when emissions from energy use and indoor thermal comfort of the end users isof question. Numerous solutions have been put forth in the field of effective distribution of thermal energy to me

Recent outlooks suggest a long-term relevance of internal combustion engines for both power generation and transportation. Nonetheless, stringent pollutant reduction requirements combined with new CO2 mandates draws a challenging scenario, requiring intensive research and development activities to develop and optimize combustion modes to fulfill these requirements. Among the recent advancements, t

After a historic introduction, today's wind power technology is reviewed on a systems level, with some details, and with some brave suggestions for wind technology 2030 when power electronics (PE) will be some 2000 GW. Eternal themes like "electricity storage" are avoided. Aspects of drive-trains in towers and collection grids in parks are concisely described in the paper's core, including: 1) a p

Alberta’s energy sector provides a reliable supply of energy and contributes to the economy of Alberta. In addition to these positive aspects, there are concerns about the environmental, economic and social performance of the energy sector. The purpose of this thesis is to critically examine the production side of Alberta’s energy sector and offer constructive ideas about how the sector could be b

The laser wake-field accelerator (LWFA) traditionally produces high brightness, quasi-monoenergetic electron beams with Gaussian-like spatial and angular distributions. In the present work we investigate the generation of ultra-relativistic beams with ring-like structures in the blowout regime of the LWFA using a dual stage accelerator. A density down-ramp triggers injection after the first stage

Developing high-performance, low-cost oxygen evolution reaction (OER) catalysts is crucial for advancing anion exchange membrane water electrolysis (AEMWE) in large-scale industrial green hydrogen production. Herein, We report a glucose-mediated spray pyrolysis method for synthesizing amorphous NiFe bimetal oxide hollow microspheres (A-NiFeOx) with controlled crystallinity, hierarchical porosity,

Popular Abstract in Swedish Many of the energy needs in today’s modern society are fulfilled by sources based on fossil fuels, including non-domestic oil and coal. It is well known that the increase in CO2 emission is the result of human activities, mostly fossil fuel consumption. The use of such fuels is unsustainable and has led to the phenomena such as climate change, political instability in sThe gasification of biomass is a promising route to increase the share of renewable sources in the energy mix. Besides having an overall higher thermal efficiency than combustion, it also offers the possibility of producing gaseous and liquid biofuels that can be used in the transport sector. The use of biomass gasification for energy purposes can help lower the net emissions of greenhouse gases,

Professor Kontaktinformation E-post: michael [dot] ljungberg [at] med [dot] lu [dot] se Telefon: +46 46 17 35 65 Mobil: +46 70 817 31 15Organisation Medicinsk strålningsfysik, Lund Besöksadress: Barngatan 2:1, Lund Rumsnummer: SUS Lund Kampradhuset 12-11 Hämtställe: 32 WebbplatsMichael Ljungbergs profil i Lunds universitets forskningsportalAndra roller Projektledare Nuclear Medicine PhysicsPersona

https://www.msf.lu.se/michael-ljungberg - 2026-06-06

A Swedish submarine often operates in colder waters, resulting in a cold on-board climate and a low temperature in the batteries. The batteries reaches their maximum capacity when they are at a temperature of 30°C, which they rarely are during the winter months when the temperature often is lower than 7°C. The diesel engines are producing a significant amount of waste heat that is just dispersed i