This bachelor thesis examines to what extent a co-create community called Bobyggetin Herrljunga, Sweden, can be food self-sufficient. To obtain a more comprehensiveresult, the difference between a vegetarian and non-vegetarian diet, as well as howtime spent on farming and available cultivation area affects the outcome, are studied.Moreover, difficulties regarding food self-sufficiency are brought up and discussed.Linear programming is used to maximise the amount of calories obtained fromfarming at Bobygget. The result shows that the degree of self-sufficiency at Bobyggetreaches 21% with vegetarian food, and 27% with non-vegetarian food. With thepreconditions regarding the available area of Bobygget, the maximum work time peradult is 9 min per day for vegetarian food, and 13 min per day for non-vegetarianfood. Difficulties concerning self-sufficiency, including time consumption and basicfarming knowledge, are identified. Possible solutions, such as starting modestly withfew crops and small area, consider contract farming, and create a knowledge base forBobygget, are presented.

This dissertation addresses the issues of climate change and depletion of non-renewable resources of energy and water, and aims at eliminating the use of non-renewable resources of energy and water for the building operation in single-family detached residences in the U.S. With this aim, this study investigated the feasibility of the off-grid, off-pipe design approach in six climate locations across the U.S. to achieve self-sufficiency in a house for building energy, indoor water use, and household wastewater and sewage disposal using only on-site available renewable resources. For the analysis, a 2,500 ft2, 2000/2001 International Energy Conservation Code standard reference house with typical building and usage characteristics was selected as the base case. The six U.S. climate locations included: Minneapolis, MN, Boulder, CO, Atlanta, GA, Houston, TX, Phoenix, AZ, and Los Angeles, CA. The renewable resources considered for this study included: solar radiation, wind, biomass for building energy needs; rainwater for indoor water use. In addition, the building site was considered for the disposal of household wastewater and sewage. The selected climate locations provided different scenarios in terms of base-case building energy needs and availability of renewable resources. Depending on these, energy and water efficiency measures were selected for reducing the building needs. For the reduced building needs, the sizing of systems for self-sufficiency was performed, including: solar thermal system for building’s space heating and water heating needs, photovoltaic and wind power systems for building’s electricity needs; rainwater harvesting system for indoor water needs; and septic system for the on-site disposal of household wastewater and sewage. In this manner, an integrated analysis procedure was developed for the analysis and design of off-grid, off-pipe homes, and was demonstrated for six U.S. climate locations. The results of the analysis indicated that achieving self-sufficiency for energy, water and sewage disposal was possible is all climates provided the systems for the collection and storage of renewable resources were large. On the other hand, the utilization of these systems was small for locations, where the year-to-year and seasonal variations in the weather conditions and availability of climate resources was large. For increased system utilization, minimization of the peak building needs, utilization of harvested energy for secondary purposes, and considering alternative systems for such applications are preferred.

This thesis analyzes the concept of Friendship in Aristotle&rsquo / s Nicomachean Ethics with its main aspects. Book VIII and Book IX of the Nicomachean Ethics are devoted specifically to the concept of Friendship to explore the moral and political aspects of it. Friendship has been one of the prominent topics for moral philosophers and hence contemporary discussions lead the Nicomachean account of friendship come to the fore. Thus, the main features of friendship in the Nicomachean Ethics as well as contemporary perspectives and discussions on that topic will be analyzed and explored in depth.

Orust Kretsloppsakademi is a nonprofit organisation, with a goal of annually generate the same amount of electrical energy that is consumed. Orust is an island on the west coast of Sweden, north of Gothenburg. The population of 15 000 reaches 40 000 during summer, due to the large amount of vacationer. The total electricity demand is 174 GWh a year with a maximum power need of 32 MW. This report presents an analysis for the plausibility of their plan and from a power system stability perspective, the effects on the electrical grid. The conclusion is that the restraints for development of power generation from wind, solar and wave generation, are the power systems capability to transfer power, primarily in the transformers of the grid. Various actions, such as constraints of power output at certain times, and clever location of generation facilities, reduces the utilisation rate of the line segments. In order to substantially decrease the utilisation rate of the line segments, the actions need to be combined. Executed simulations showed that Orust needs to be provided with reactive power, even if Orust is self-sufficient of active power, through its connection to the Swedish power system. The need for reactive power decreased when the feeding transformer allowed a reduced voltage in the regional network. Additionally, generation of reactive power could further increase the possibility for Orust to become self-sufficient on electricity generation.

Diploma thesis deals with the possibilities of the realization of self-sustainable buildings in Czech republic. Thesis uses facts from the enviromental protection, landscaping and urbanism to prove the social and enviromental need of this type of structures. Using the define case of Earthships -- self-sufficient houses from recycled materials, thesis describes specific functional principles and adaptation of Earthships to czech climate and legislativ. The main objective of this paper is to give an integrated overview of this topic and really survey the possibilities of this concept to be realized in Czech republic.

The aim with this research is to investigate if there is a relationship between import of meat and the price on livestock in Sweden. It also investigates if the Swedish membership of the European Union has affected both the price on livestock and the quantity of import of meat to Sweden. The research is based on a publication from Swedish Board of Agriculture, which indicates that the membership of the European Union has affected the consumer price on agricultural products. This gave the idea that this could have happened on prices of livestock as well. The data is collected from Swedish Board of Agriculture and SCB, for the years of 1970-2019. Regression analysis and paired t-test were supposed to be used for data analysis. The results of stationarity tests implies that regression analysis should not be used regarding the non-stationary result. Therefor were only the stationarity tests and the t-test used. The result of t-test showed that the membership of European Union has affected both price and import in Sweden. To exclude other reasons for the price decrease and the increase of import than the membership is not possible. When comparing the data with other factors and literature the conclusion is that events in the end of the 20th century did affect the price level of livestock and the increased demand for imported meat. Key

Yes / The biomass gasification process is widely accepted as a popular technology to produce fuel for the application in gas turbines and Organic Rankine Cycle (ORC). Chemical reactions of this process can be separated into three reaction zones: pyrolysis, combustion, and reduction. In this study, sensitivity analysis with respect to three input parameters (gasification temperature, equivalence ratio, and steam-to-biomass ratio) has been carried out to achieve energy self-sufficient conditions in a steam gasification process under the criteria that the carbon conversion efficiency must be more than 70%, and carbon dioxide gas is lower than 20%. Simulation models of the steam gasification process have been carried out by ASPEN Plus and validated with both experimental data and simulation results from Nikoo & Mahinpey (2008). Gasification temperature of 911 °C, equivalence ratio of 0.18, and a steam-to-biomass ratio of 1.78, are considered as an optimal operation point to achieve energy self-sufficient condition. This operating point gives the maximum of carbon conversion efficiency at 91.03%, and carbon dioxide gas at 15.18 volumetric percentages. In this study, life cycle assessment (LCA) is included to compare the environmental performance of conventional and energy self-sufficient gasification for steam biomass gasification. / Financing of this research was supported by the Thailand Research Fund (TRF) under Grant Number PHD57I0054 and the Institutional Research Grant by the Thailand Research Fund (TRF) under Grant Number IRG 5780014 and Chulalongkorn University, Contact No. RES_57_411_21_076.

The thesis brings urban planning and sustainable development. Introduces low-energy construction and its types. Closer focuses on self- sufficient house, describing his characteristics, principles, and selection of suitable location. Finally, the work addresses the legislation associated with the placement of a self-sufficient house on suitable parcel.

The Swedish magazine Åter, which offers a forum for people with an interest in making a self-sufficient household, constitutes the material for this study. The magazine is exemined with an interest in finding outspoken and unspoken ideological values that may be considered as the motivation to actively choose an alternative lifestyle such as the one a self-sufficient household represents. The main interest for doing so is to elucidate any views on modernity from the many voices in the magazine. Previous studies of similar lifestyle choices have had a focus on them being a part of a social movement or a result of an enviromental awareness. This study increases the understanding of this lifestyle as being a reaction against a modernity that does not agree with their individual experiences of a meaningful existence. Several complementary theoretical perspectives have been regarded in order to examine the ample material, with main emphasis on Ulrich Beck and his notion of subpolitics and reflexive modernity. As a result, the study suggests that the magazine offers an intellectural fellowship for people interested in creating a self-sufficient household. Within that community spirit several issues are raised against the industrial modernity, as well as numerous suggestions for how to create a new, reflexive, modernity.

Självförsörjande småhus gör att beroendet av de kommunala näten försvinner ochflexibiliteten ökar. Det finns fortfarande stor potential till utveckling av tekniska lösningaräven om mycket teknik redan finns på marknaden för exempelvis elproduktion,säsongslagring, uppvärmning, vatten och avlopps samt ventilation. Helt förnybaraenergikällor behöver prioriteras och en övergång till dessa kräver en förändring ibeteendemönster och mer energieffektivt byggande för att minska energianvändningen.Vid utformning av självförsörjande hus kan med fördel solen användas vilket kan påverkaorientering och taklutning. Ytterligare aspekter som kan tas hänsyn till är valet avbyggnadsmaterial, teknikutrymme, klimatskalets uppbyggnad och dispositionen avplanlösningen. / Self-sufficient small housing makes the dependence of the municipal sustentation to minimizeand the flexibility increases. There is still a high potential for developing technical solutionseven though a lot of the technology already exists on the market regarding for examplesolutions for energy production, seasonal storage, heating, water supply, draining system andventilation. Renewable energy sources need to priorities and a transition to 100 % renewableenergy require a change in pattern of behavior and more energy efficient buildings to lowerthe consumption. When designing self-sufficient houses, the sun is a good source for both energy and heatingwhich can have an impact on the orientation of the building and the slope of the roof. Otheraspects to consider can be the choice of building material, technical space, the climate shelland the disposition of the plan.