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524 Uppsatser om Remediation of mine waste - Sida 16 av 35
Studie av verkningsgrad potentialen för ett vatten baserat Waste Heat Recovery system med kolvexpander
SammanfattningEn ånganna monterades i EGR (Exhaust Gas Recirculation) slingan på en 12,7 liters Scania Euro V motor (DC1306). En modell som beskriver Rankine cykel togs fram med vatten som köldmedium i simuleringsverktyget GT-Power. Ångpannan i GT-power modellen kalibrerades m.h.a experimentell data.Simuleringarna visade att det optimala ångtrycket, det trycket där högst effekt kan erhållas från expandern, är beroende av EGR temperaturen. Det innebär att ju högre EGR inloppstemperatur desto högre optimalt ångtryck. EGR temperaturen i punkt 2 i ESC cykeln är 514? C för denna motor, vilket resulterar i ett optimalt tryck på 120 bar enligt simuleringen.
Ekonomin i Sala gruvby omkring 1500 till 1600 : en jämförande studie av myntfynd från Sala gruvby och kyrkfynd
The subject of this essay in archaeology is the economy at the mining village of Saladuringthe 16th and early 17th century. The silvermine in Sala was once the foremost producer of silver in Sweden, and the mine as well as the mining village had had a long and rich history. This history can be seen in historical documents as well as in archaeological findings. The lure of silver attracted many different people to the mining village. This in turn madetrade an important part of the mining village.
Dynamisk selektivitet i Kankbergsgruvan
Underjordsgruvor är i konstant utbyggnad neråt i berget på jakt efter mineraler. Detta medför andra utmaningar gällande elektrifieringen än vad som finns vid en installation ovan jord där den är mer permanent. Att bibehålla en god selektivitet i en underjordsgruva är en sådan utmaning. Kabellängder förändras och delar i anläggningen tillkommer eller tas bort.I en del av ABB:s vision om ?Smart Mine Power? har New Boliden AB visat sitt intresse av att modernisera elektrifieringen i Kankbergsgruvan och undersöka ifall det är möjligt att införa en dynamisk selektivitet.
Konsumentbeteenden och h?llbarhet. En kvalitativ studie av hur konsumentbeteenden p?verkar h?llbarhetsaspekterna av online f?rs?ljning av kosmetiska produkter, inklusive returer
The ever-growing e-commerce brings many opportunities for society's consumers and businesses. Digitization has strongly contributed to these opportunities and has, among other things, facilitated the search for information and increased the range for the customer. While the opportunities are many, the increased consumption has also brought consequences. The increase in consumption contributes, among other things, to quantities of deliveries and returns as well as increased waste, all of which results in environmental destruction. The issue of sustainability is very topical today and is influenced by almost everything today.
In connection with the markets changing, the consumers' behaviors and expectations also change.
Den nya marknaden i Japan : En fallstudie av svenska cleantechföretags möjligheter på den japanska markanden
The purpose of this study is to facilitate sustainable building by the use of BIM. The goal is to determine which aspects of sustainable building, which can be analyzed mainly with BIM tools, but also other aids.The study is based on literature studies and interviews. The literature review examines aspects important for sustainable building by studying environmental certification systems applicable in Sweden, as well as the BIM tools available on the market to analyze these aspects. The literature also includes the concepts of BIM and sustainability in order to provide a clearer view of its meaning. The interviews have brought the study's overall understanding of the industry and guidance on the subject.The results are presented in a table, where the aspects relevant to sustainable building are listed.
Ett dedikert sportprodukt till klatring for mennesker med amputert arm
The purpose of this study is to facilitate sustainable building by the use of BIM. The goal is to determine which aspects of sustainable building, which can be analyzed mainly with BIM tools, but also other aids.The study is based on literature studies and interviews. The literature review examines aspects important for sustainable building by studying environmental certification systems applicable in Sweden, as well as the BIM tools available on the market to analyze these aspects. The literature also includes the concepts of BIM and sustainability in order to provide a clearer view of its meaning. The interviews have brought the study's overall understanding of the industry and guidance on the subject.The results are presented in a table, where the aspects relevant to sustainable building are listed.
Kalhygge : Skåpets källa
Mitt examensarbete fra?n Designprogrammet ? ha?llbar utveckling, a?r en under- so?kning av flera dimensioner. Det o?vergripande arbetet a?r ett platsspecifikt insamlande av framtida visioner hos inva?nare, kommun och kreato?r. Visualiseringen involverar samtliga av de ovan na?mnda parterna i skapandet av en ny mo?tes- plats i ett medialt kategoriserat miljonprogramsomra?de.
Militärtekniskt perspektiv på AUV
Sweden is dependent on secure sea transport. Shorter disruption of imports of fuel and crude oil can be managed with an emergency stock, but a prolonged halt in imports creates problems. For industry, the vulnerability is greater. Fragmented production chains in combination with expenditure reductions in inventory causes a dependency on proper transport of intermediate goods in the manufacturing industry. A lengthy disruption thus involves disruption of production for both domestic consumption and for export goods containing imported parts.In order to secure shipping routes with a limited number of vessels, Mine Counter Measures (MCM) capacity is required, and according to the Armed Forces, developed with new sensors and autonomous vehicles.
Ödebygdsmusik : att gräva där man står
Mitt examensarbete fra?n Designprogrammet ? ha?llbar utveckling, a?r en under- so?kning av flera dimensioner. Det o?vergripande arbetet a?r ett platsspecifikt insamlande av framtida visioner hos inva?nare, kommun och kreato?r. Visualiseringen involverar samtliga av de ovan na?mnda parterna i skapandet av en ny mo?tes- plats i ett medialt kategoriserat miljonprogramsomra?de.
Laktester för riskbedömning av förorenad mark :
Using leaching test is a way to get a picture of pollutants retention and leaching in a risk assessment on contaminated land. There are several different types of standardised leaching tests today, where the natural leaching processes are speeded up to make it possible to predict the leaching of pollutants. These leaching tests have been developed for waste and there are no specific guidelines on how to judge the results from the tests, when making a risk assessment on contaminated land. This work is an investigation on how to use leaching test in this type of risk assessments. The strengths and weaknesses of the different types of tests are discussed.
Depending on what type of information you want from your leaching test, different types of tests are suitable.
Erfarenhetsåterföring : Hur kan en verkningsfull återföring skapas mellan produktion och kalkyl?
Sweden is dependent on secure sea transport. Shorter disruption of imports of fuel and crude oil can be managed with an emergency stock, but a prolonged halt in imports creates problems. For industry, the vulnerability is greater. Fragmented production chains in combination with expenditure reductions in inventory causes a dependency on proper transport of intermediate goods in the manufacturing industry. A lengthy disruption thus involves disruption of production for both domestic consumption and for export goods containing imported parts.In order to secure shipping routes with a limited number of vessels, Mine Counter Measures (MCM) capacity is required, and according to the Armed Forces, developed with new sensors and autonomous vehicles.
Förslag till kväverening i Forsåsystemet genom våtmarksetablering
The last hundred years humans have drastically changed the amount of available nitrogen in nature. Today human activities release twice as much available nitrogen as all natural processes are doing together. We also have degraded nature´s possibilities to take care of nitrogen through the draining of wetlands and straightening of rivers. In order to regain the potential of nitrogen retention in the water systems there now requires a reshape of the landscape we live in. A planned expansion of the mining activities in Garpenberg, Dalarna, would double the content of nitrogen in the waters below the mine.
Let´s Dance : För att utveckla motoriken?
AbstractDancing and the body`s ability to express itself has been an interest of mine for a long time. For that reason I would like to find out more on how you as a pedagogue can work with dancing as a way to develop motoric activity. The purpose of my research is to find out how pree-school-pedagogue`s and sportsteacher`s are working with dancing, and also how children in a pree-school class apprehends the idea of dancing before and after a dancelesson.My question for this paper is:How can dancetutoring in pree-school develop children`s motoric activity?To find out the answer for this question I have also chosen to use relevant litterature within the subject. Since the examination covers only the answers from four pedagogue`s and six children I can not make a generell conclusion that covers all children or pree-schools.
Kompostering i kommunal regi: en fallstudie i Arvika Parkf?rvaltning
Arvika Fastighets AB is a municipal subsidiary tasked with managing all green areas in the
municipality, with a strong focus on the City Park and plant beds in the city centre. These areas
generate large amounts of green waste, which is currently transported to the municipality's
composting area at Lycke. Currently, the material is piled up and turned once a year without using
the resulting soil for flowerbeds, lawns, and shrub/tree plantings. The purpose of the study is to
determine if Arvika can compost the green waste in a more efficient manner and produce weed-free
soil ready to be mixed into various substrates for different purposes. Interviews with the Swedish
Church and several municipalities in Sweden have been conducted to learn from their experiences
and knowledge of how they make their composting work.
BIM för Hållbart Byggande
The purpose of this study is to facilitate sustainable building by the use of BIM. The goal is to determine which aspects of sustainable building, which can be analyzed mainly with BIM tools, but also other aids.The study is based on literature studies and interviews. The literature review examines aspects important for sustainable building by studying environmental certification systems applicable in Sweden, as well as the BIM tools available on the market to analyze these aspects. The literature also includes the concepts of BIM and sustainability in order to provide a clearer view of its meaning. The interviews have brought the study's overall understanding of the industry and guidance on the subject.The results are presented in a table, where the aspects relevant to sustainable building are listed.