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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Passivhus - lönsamt eller ej? : En jämförelse mellan ett passivhus och ett konventionellt hus

Ekblom, Anna, Ernér, Anna January 2010 (has links)
<p>As a result of increased energy prices more and more energy-efficient homes are coveted. An energy-efficient alternative is passive houses, which is characterized by an extremely well insulated building envelope that recovers the heat without the use of radiators or under floor heating. But a passive house requires a higher investment cost than a conventional building project, since it will require more construction materials, training of construction workers, greater land area, and long construction period. But the lower operating cost expects to pay back the higher cost of investment. We therefore question how profitable a passive house is in relation to houses built according to modern conventional building techniques.</p><p>The aim of our study is to investigate the viability of passive houses compared to convent­ional houses. By using economic tools we intend to pursue this question of profitability to see where, when and how costs and revenues emerge.</p><p>Our report resulted in a case study where we looked closer at the passive house project Oxtorget and the conventional project Apollofjärilen, which both are owned by Finnveds­bostäder in Värnamo. Through interviews with Per-Magnus Rylander, project manager for Oxtorget, and Jan-Olof Fag, operation manager for Oxtorget, we got access to sufficient infor­mation about the two projects to compare the various profitability calculations, to finally discover which of the two projects that was most profitable.</p><p>With the help of our collected empirical data and economic tools, we concluded that Oxtorget became an unnecessarily expensive passive house project. This is because Oxtorget was built in such an early stage that information and experience from passive technology was missing, which involved a cost to the construction team to learn new technologies. Besides, there were only two offers, which meant less competition and therefore a high price. But it is primarily Oxtorgets planning cost that has affected our profitability calculations adversely. Since the building was appealed it required two planning’s which made Oxtorgets investment cost more difficult to recoup. But thanks to government contributions and low rates, we could still come to the conclusion that Oxtorget was a profitable venture, but nowhere near as profitable as we initially expected. Finally, we found out that we believe that if a similar comparative study carried out in which the passive house project follows a normal building process we will see a significant change of the result. We have also realized that the rate plays a significant role on projects profitability. For this reason, we have finally found that minimized investment costs are the most important thing to ensure that a passive house is more profitable than a convent­ional house.</p>
2

Passivhus - lönsamt eller ej? : En jämförelse mellan ett passivhus och ett konventionellt hus

Ekblom, Anna, Ernér, Anna January 2010 (has links)
As a result of increased energy prices more and more energy-efficient homes are coveted. An energy-efficient alternative is passive houses, which is characterized by an extremely well insulated building envelope that recovers the heat without the use of radiators or under floor heating. But a passive house requires a higher investment cost than a conventional building project, since it will require more construction materials, training of construction workers, greater land area, and long construction period. But the lower operating cost expects to pay back the higher cost of investment. We therefore question how profitable a passive house is in relation to houses built according to modern conventional building techniques. The aim of our study is to investigate the viability of passive houses compared to convent­ional houses. By using economic tools we intend to pursue this question of profitability to see where, when and how costs and revenues emerge. Our report resulted in a case study where we looked closer at the passive house project Oxtorget and the conventional project Apollofjärilen, which both are owned by Finnveds­bostäder in Värnamo. Through interviews with Per-Magnus Rylander, project manager for Oxtorget, and Jan-Olof Fag, operation manager for Oxtorget, we got access to sufficient infor­mation about the two projects to compare the various profitability calculations, to finally discover which of the two projects that was most profitable. With the help of our collected empirical data and economic tools, we concluded that Oxtorget became an unnecessarily expensive passive house project. This is because Oxtorget was built in such an early stage that information and experience from passive technology was missing, which involved a cost to the construction team to learn new technologies. Besides, there were only two offers, which meant less competition and therefore a high price. But it is primarily Oxtorgets planning cost that has affected our profitability calculations adversely. Since the building was appealed it required two planning’s which made Oxtorgets investment cost more difficult to recoup. But thanks to government contributions and low rates, we could still come to the conclusion that Oxtorget was a profitable venture, but nowhere near as profitable as we initially expected. Finally, we found out that we believe that if a similar comparative study carried out in which the passive house project follows a normal building process we will see a significant change of the result. We have also realized that the rate plays a significant role on projects profitability. For this reason, we have finally found that minimized investment costs are the most important thing to ensure that a passive house is more profitable than a convent­ional house.
3

VA-system i omvandlingsområden - vad kostar de?

Näslund, Olov January 2016 (has links)
När fler människor flyttar ut till sina fritidshus och bor där hela året om bildas så kallade omvandlingsområden där användningen av vatten och avlopp förändras. Detta leder ofta till högre vattenanvändning och kraven på avloppssystemen ökar därmed. Det finns tre huvudtyper av lösningar som vanligtvis används för att möta kravet på bättre avloppssystem i omvandlingsområden: enskilda lösningar på varje fastighet, en samfälld lösning eller en lösning i kommunal regi. Syftet med studien var att utvärdera kostnader för VA-system i omvandlingsområden i Sverige. Fem olika områden studerades med avseende på beräknade kostnader jämfört med det verkliga utfallet. Beräkningar gjordes på totala investeringskostnader, kostnad per fastighet såväl som kapitalkostnad och drift- och underhållskostnad. Jämförelser gjordes också med andra lösningar som var aktuella innan området byggde ut den valda VA-lösningen. Arbetet berörde även metodiken för hur kommuner väljer VA-system i omvandlingsområden. Det var billigare för en samfällighetsförening, 1 000 kr/m, att gräva ledningar än för en kommun, 4 400 - 5 900 kr/m. Grundare ledningsgravar var en av orsakerna till detta. En annan slutsats var att befintlig infrastruktur från tidigare VA-system kan göra samma typ av VA-system billigare om delar av det befintliga fortfarande är i gott skick. Driftkostnaden för enskilda system beror mycket på hur många personer som nyttjar systemet och under hur stor del av året. Vid samtal med kommuner framkom det att valet av VA-system i omvandlingsområden i regel inte föregås av en jämförelse mellan olika VA-system. Istället är det oftast en överföringsledning till ett befintligt kommunalt nät som väljs. / More and more people choose to live permanently in houses built as vacation houses, thereby creating transition areas. The increased occupancy in the houses tends to lead to larger water usage and often demands improved wastewater systems. There are three main ways in which this demand usually is met: each property builds an on-site system, the properties jointly build a facility through a community association, or the properties connect to the municipality’s network. The aim was to evaluate the costs of water and wastewater systems in transition areas in Sweden. This was done by studying five different improved transition areas and comparing the estimated costs with the actual cost of the systems. Both total investment costs and cost per property were calculated, as well as capital costs, and operation and maintenance costs. How the municipalities choose the sanitation system to be implemented was also a part of the study.  It was much more expensive for the municipality to build pipes than for a community association. One reason for this was shallower pipe placement. Another conclusion was that if part of a sanitation system already exists and is in good shape, this will lead to lower investment costs for a new system using that part. The operation costs for on-site systems on each property will be much higher for a family living there permanently, compared to that of a family living there only part time. Municipalities in Sweden generally do not compare different types of systems before deciding on an improved water and sanitation system in a transition area. Instead they almost always build a transmission line for water and wastewater to connect the area to an already existing centralized system.
4

Lagerplats och logistiklösningar / Stock location and logistic solution

Anongdeth, Alexander, Mikaelsson, Oskar January 2021 (has links)
Examensarbetet utfördes under våren 2021 på ett svenskt företag i Centrala Sverige. Uppdraget har som syfte haft att få en objektiv inblick i företagets lagersituation för försäljningen i EMEA. Uppdragets mål var att undersöka vart kostnadsbesparingar kunde göras, hur koldioxidutsläpp kunde reduceras för transporter av SMT produkter och hur servicenivån till kunderna kunde öka med att korta ned interna och externa ledtider. För att möjliggöra dessa kriterier undersöktes den befintliga lagersituationen mot en omställning för att komma närmare kunderna i EMEA. Med syfte att minska på transportdistanserna från lager till kund och från produktion till lager. För att möjliggöra arbete har information givits av företaget där ansvariga personer för respektive avdelning och en förstudie om vart ett lager bör placeras. Förstudien har jämförts mot den interna datainsamlingen. Interndatasamlingen har bestått av intervjuer och analyser utav tidigare arbeten i form av säljvolym och kundlokalisation granskats för att få en inblick i hur materialet flödar vid försäljning i EMEA. Logistiken för nuläget har gett en djupare förståelse i hur problemet uppstått och varför förbättringar önskats. När slut produktionen ligger närmare slutkunden än vad det befintliga central lagret gör i dagensläge antas att förbättringar kan göras. Med en granskning av företagets transportkostnader, lagerkostnader och distansen till samtliga kunder har resultatet visat på att vinningar kan göras på samtliga punkter. / This thesis project was carried out in the spring of 2021 at a Swedish owned company located in central Sweden. The purpose of the assignment was to gain an objective insight into the company’s stock situation for sales in EMEA. Then to investigate where cost savings could be made, how carbon dioxide emissions could be reduced for transport of SMT, and finally how the level of service to customers could increase by shorting internal and external lead times. To enable these criteria, the existing stock situation was examined towards a changeover to get closer to the customers in EMEA. Thus aiming to reduce the transport distance from warehouse to customer and from production to warehouse. To enable this project, information has been provided by the people responsible for each department and a feasibility study was carried out on where the warehouse should be located. The feasibility study has been compared with the internal data collection. This collection has consisted of interviews and analyzes of previous work in the form of sales volume. Customer locations has also been examined to get an insight into how the material flows during sales in EMEA. The logistics for the current situation provide a deeper understanding of how the problem arose and why improvements were needed. When the finishing production is closer to the customers of the company than what the existing warehouse does in the current situation, it is assumed that improvements can be made. With a careful examination of the company’s transport costs, warehouse costs and the distance to all customers in EMEA, the results have shown that gains can be made on all points.

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