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851 Uppsatser om Heat recovery - Sida 5 av 57

Att bli varse det ordlösa : Psykoterapeutstudenters upplevelse av momentet spädbarnsobservation

The objective of this study is to understand how people with psychiatric diseases who are enrolled at a psychiatric clinic experience the recovery process and which internal motivations and external factors influence the process. The study is based on interviews with five people who have been enrolled at a psychiatric clinic. Another aim of the study is to understand how the importance of the outpatient care for the personal recovery and the improvement opportunities of the support from the rehabilitation unit that the interviewees see. The study is qualitative and abductive approach was chosen. This means that the study is based on empirical data supported by established theories.

Fjärrvärme, vad annars? : Fjärrvärme och dess alternativ

AbstractBackgroundThe Swedish district heat market of today is a subject being discussed regarding the reasonableness of the heat district supplier?s price settings. The issue is currently on a government level where a new investigation is being executed at the time of writing. Many real estate owners are growing tired of the situation where the heat district suppliers are taking advantage of their monopoly position, thus feeling that the price of district heating has been increasing far too much for many years. The market can be described as a natural monopoly because the real estate owner has no possibility to choose another supplier if they are unsatisfied with the present.

Luft/luftvärmepump : - Med möjlighet till återvinning

Sweden has long had access to low electricity prices due to the wide availability of hydro and nuclear power. This has now changed because of today's rising electricity rates resulting in increasing heating costs for properties, especially in the properties with electric heating systems."Ankaret" is a parish for "Svenska Alliansmissionen", which is located at "Gullbrannagården".The parish has installed electrical radiators and an exhaust ventilation system that makes the energy demand high due to the large ventilation flows. The building was built as the price of electricity was still low and would reduce energy use today by combining its heating system with an air/air heat pump. The heat pump delivers more heat into the room than the electrical energy that it uses. This lowers the electricity needs.

X-heat, hanteringsutrustning för gipsrullar

En hanteringsutrustning för att underlätta förberedelser av gips på sjukhus.

Latent värmelagring i vattenburet uppvärmningssystem med elpanna för byggnadsapplikationer

Latent heat storage is a way to store thermal energy when a phase change material undergoes a phase change. The advantage of latent heat storage is the capability to store more energy per mass unit than other heat storage methods. The most commonly used phase change in latent heat storage is the transition between solid and liquid. Phase change materials can be divided into organics, inorganics and eutectics.In the Nordic electricity market the price of electricity is set every hour by Nordpool spot, which leads to price fluctuations because of changes in demand. The main goal of this report is to create a latent heat storage system in a single-family home and investigate the possibility to save money by charging the latent heat storage system when the price of electricity is low, and discharge when the price is high.The thermodynamic model consisted of a ?tube-in-tube? heat exchanger with phase change material in the outer tube and water as the heat transfer fluid in the inner tube.

Brännkammare för träpulver : Teoretisk analys och praktisk försök

The thesis describes a completely new biofuel system to generate particle-free heat from combustion of ash-containing biofuel particles at high temperatures.The suggested system gives opportunities to introduce biofuels in new areas.Main components in the suggested system is a heat radiating combustion chamber intended for pulverized wood, combined with regenerators to extract heat from flue gases and simultaneously preheating the combustion air.The thesis contains a description of the suggested system, theoretical considerations, calculations regarding the combustion, and includes results from tests performed.The results from calculations and tests performed concludes that the system is workable and possible to apply..

Med hjälp av folk och fä : Att återhämta sig från psykisk ohälsa i lantlig miljö

AbstractAuthors: Mikael Gustafsson & Kristofer von WachenfeldtTitle: With help from people and cattle; to recover from mental illness in a rural environment [translated title]Supervisor: Kent-Inge PerseiusPurpose: The aim of this study was to examine feelings of recovery from mental illness in the perspective of individuals participating in Nymålen; a rural- situated facility focusing on recreation- and work- related interventions. The study took place outside of Oskarshamn, Sweden. The study focused on if, and in that case how, Nymålen contributes to recovery from mental illness. We were also interested in which factors affecting the recovery-process, as expressed by the participants themselves.Method: Eight individuals from Nymålen participated in individually performed semi- structured interviews. The collected data was then coded and categorized to enable further analysis by using Qualitative content analysis inspired by Graneheim & Lundman (2003).

Solenergi och värmelagring i kvarteret Lagern

Humanity stands before a huge challenge to lower its emissions of carbon dioxide and its use of energy at the same time as the global population is rising and the developing countries are being industrialized. A lot of newly built buildings are due to this challenge, designed to be more energy efficient but also use renewable energy resources instead of pollutant fossil fuels .Solar energy is one of the purest forms of energy that exists in abundant amounts, which is why it is most likely that it could come to play a major part in the future energy market. The main purpose of this report is to investigate the possibility to implement a sustainable energy system with solar thermal heat and  heat storage as main sources of energy in the neighborhood ?kvarteret Lagern?, which is the area where the old football stadium ?Rasunda Stadion? was located. New developments within different heat storage techniques have opened up new approaches to enable buildings an all year round heat supply from solar energy. This report will focus on heat storage in boreholes. At the present here is only a preliminary plan of how the neighborhood is supposed to be designed.

Företagsstudie om värmeöverföring : Beskrivning av värmeflöden hos en lagerbyggnad

The study took place at a food corporation in Växjö, Sweden. It describes a building that contains four tanks in which glucose syrup is stored. The purpose of the study was to calculate the amount of heat that leaves the building and the amount of heat that is supplied by the installed heating equipment. Before the calculations could be implemented, all the systems that supply the building with heat had to be examined. With a small amount of information from earlier studies, the work to gather all the data necessary for the calculations began.

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.

Värmeöverföring i bergvärmesystem : En numerisk analys av den ringformade koaxiala borrhålsvärmeväxlaren

The borehole heat exchangers of today suffer from poor thermal and hydrodynamic performance. The purpose of this thesis is to improve the performance of ground source heat pump systems and thermal energy storages by increasing the energy efficiency of the borehole heat exchangers. For this reason, the annular coaxial borehole heat exchanger (CBHE) has been analyzed. This type of heat exchanger is interesting in terms of both thermal and hydrodynamic performance. A model has been set up in the program Comsol Multiphysics in order to investigate the heat transfer characteristics along the borehole.

Återvinning av industriell restvärme som värdeskapande process : En fallstudie på SSAB EMEA i Borlänge

The industrial sector accounts for a large share of greenhouse gas emissions. To reduce its negative impact on the environment is crucial in the quest for a sustainable future. In discussions of the industrial sector's impact on the environment guidelines have been highlighted as a tool to assist the industries in their efforts to change the relationship between the consumption of energy and production. This by improving energy efficiency and a shift to the best available technology. During the past 30 years the steel industry has reduced its energy consumption per ton of steel produced by 50 percent.

Undsättning, en skyldighet eller förmån : Sverige och Personnel Recovery?

Syftet med denna uppsats är att undersöka varför Personnel Recovery som officiell funktion inteutvecklats och implementerats i det svenska försvaret. Den belyser också frågan som underlag fören diskussion om behovet av Personnel Recovery och dess utformning i Sverige.Graham Allisons teorier om organisatoriskt beslutsfattande har utgjort den vetenskapliga ramenför att förklara vad som kan ha påverkat beslutsprocesserna. Metoden har varit att pröva femstycken hypoteser kring varför försvaret inte utvecklat och implementerat Personnel Recovery. Ihypoteserna finns tankar kring rationalitet, standardiserat agerande, rivalitet, ekonomi och externtstöd. Hypoteserna har prövats mot resultatet från en kvalitativ granskning av olika källor, texteroch intervjuer.

Ny teknik för småskalig kraftvärme : - med fokus på Organisk RankineCykel (ORC)

As a part of the fight against the global warming the energy production needs to be more efficient and redirected towards sustainable options. One alternative is cogeneration, which means that electricity and heat is produced in one plant. The purpose with this survey is to examine if there are any commercial available combined heat and power techniques, based on combustion of solid moist biomass, which are suitable to small-scale applications. The technique must be able to produce between 2 and 10 MW thermal and the heat demand is a Swedish district-heating system. When already published reports had been studied, the Organic Rankine Cycle (ORC) was chosen as the most suitable technique.

Beräkningsalgoritm för fouling i pelletervärmeväxlare inom plasttillverkning

Sweden?s energy consumption is divided into three major sectors. One of them is the industry sector. One third of Sweden?s energy consumption is converted in the industries.

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