Översyn av uppvärmning
The heating of companies premises is today functional with electrical heating and heating offossil fuel. The energy cost for these kinds of heating in buildings has heavily increased duringthe last years and the influence on the environment has become more visual. This leads to thatenterprises today become more anxious to render energy more effective and find alternativesolutions to their ancient heating systems. This is something that Skandinaviska kraftprodukterAB in Halmstad has become aware of.The purpose with this examination is to find the most cost-efficient and environmental measuresfor the office and workshop premises of SKP AB. Where one of the bigger things is to find agood alternative for their current oil furnace, which was heating the workshop. Another big thingwas to take forward suggestions for measures of rendering energy more effective for thebuildings. By taking contact with people in the business and by inspecting the premises and theheating system, we got an idea about the measures that could be of current interest. We analysedthese measures to see if they could last financially and environmentally. At the financial analysiswe used LCC-method which means that you calculate the cost of the investment during its life.With the heating system this means, among other things, running, maintenance and initial costs.To examine the affect on the environment from the different heating alternatives we chose tomake a easier LCA, which we based on the local conditions.In an existing building it is the simple measures of rendering energy that dominates financially,the bigger investments don?t create financial expectations high enough with the energy prices oftoday. In the workshop it was foremost a number of industrial gates that led to great heatinglosses, which would best be taken care off by PVC-stripes curtain or automatic shutoff of theheating system when the gates are open. Another alternative would be to invest in aircurtain. Thiswould reduce the heating losses a lot, but because of the large investment cost is this not anoption. The most cost-efficient measure is to increase the awareness of the employees, about howtheir behaviour is affecting the use of energy and to make sure that heat and ventilation doesn?trun unnecessarily.While going through possible heating alternatives for the workshop, three alternatives seemed themost interesting, air-to-air heat pump district heating and pellets. When it came to the financialaspects where there no great difference between the three alternatives, when you looked at acalculation period over 30 years. Environmentally heat pump was the best choice because theelectricity of HEM is water produced. The district heating had the highest affect on theenvironment because it partially comes from waste burning, which leads to large emissions. Fromcomfort and maintenance point of view we think that the district heating is the best alternative forthe enterprise, foremost because you don?t have to maintain the system and it can heat thepremises even during the coldest days. The downside with pellets is that it brings a curtainamount of maintenance and that pellets storage takes a lot of place. The downside of heat pump isthat it doesn?t have enough effect to cope with the coldest days.Our recommendation of heating system is district heating. It is true it has the biggest influence onthe environment but because it can handle the need for heat during all parts of the year and that itis free of maintenance ways up for its influence on the environment.