Given that the oil prices have risen and the environmental regulations has become more stringent, the interest in operating efficiency has increased. The project has investigated the possibility of producing electricity from waste heat generated in the diesel process. One technique to utilize and convert energy into electricity is the ORC (Organic Rankine Cycle). This process is based on the Rankine process (the steam process), the difference from the traditional Rankine process is that instead of water as a working medium, an organic substance is used. The main component used in the process is a evaporator, a turbine, a condenser and a pump. Opcon is a company that markets a product based on the ORC technology, called the Powerbox. During autumn 2011 and spring 2012, a feasibility study commissioned by Stena RoRo to investigate whether the Powerbox is suitable for Stenas RoRo ship series Mk II for electricity generation, in terms of economic viability and proper placement on the basis of the necessary peripherals. The survey shows that the Powerbox can be placed on the ship series Mk II. Stena has stated that this investment should have a pay-back time in three years. The Powerbox will be paid off after eight years. / Med anledning av att oljepriset har stigit och att miljökraven blivit strängare har intresset för driftoptimering ökat. Projektet har undersökt möjligheten att utvinna elektricitet från den spillvärme som uppkommer i dieselprocessen. En teknik som finns för att tillvarata och omvandla energin till elektricitet är ORC (ORGANIC RANKINE CYCLE). Denna process bygger på Rankines process (ångprocessen), skillnaden mot den traditionella Rankineprocessen är att istället för vatten som arbetsmedium används ett organiskt ämne. De huvudkomponenter som används i processen är förångare, turbin, kondensor och en pump. Opcon AB är ett företag som marknadsför en produkt som bygger på ORC-tekniken, en så kallad Powerbox. Under ht 2011 och vt 2012 har en förstudie gjorts på uppdrag av Stena RoRo för att undersöka om Opcons Powerbox är lämplig på Stenas fartygsserie Mk II för elproduktion, med avseende på ekonomisk lönsamhet samt lämplig placering utifrån nödvändig kringutrustning. Undersökningen visar att Powerboxen kan placeras på fartygsserien Mk II. Stena har uppgett att denna investering bör ha en avbetalningstid på tre år. Powerboxen kommer att vara avbetalad efter åtta år.

Software size estimation/measurement has been the objective of a lot of research in the software engineering community due to the need of reliable size estimates. FSM Methods have become widely used in software project management to measure the functional size of software since its first publication, late 1970s. Although all FSM methods measure the functional size by quantifying the FURs, each method defined its own measurement process and metric. Therefore, a piece of software has several functional sizes when measured by different methods. In order to be able to compare functional sizes of software products measured by different methods, we need to convert them to each other. In this thesis study, the similarities and differences between four FSM methods, IFPUG FPA, Mark II FPA, COSMIC FFP and ARCHI DIM FSM are investigated and the common core concepts are presented. Accordingly a unification model of the measurement process of all four methods is proposed. The main objective of this model is to measure the functional size of a software system by applying all four methods simultaneously, using a single source of data. In order to have an infrastructure to validate the unification model by conducting empirical studies, a software tool is designed and implemented based on the unification model. Two empirical studies are conducted by utilizing the data of a real project to evaluate both the unification model proposed and the developed tool and the measurement results are discussed.

Popular Object Oriented size metrics and estimation methods are examined. A case study is conducted. Five of the methods (&ldquo / LOC&rdquo / , &ldquo / OOPS&rdquo / , &ldquo / Use Case Points Method&rdquo / , &ldquo / J.Kammelar&rsquo / s Sizing Approach&rdquo / and &ldquo / Mark II FP&rdquo / ) are applied to a project whose requirements are defined by means of use cases. Size and effort estimations are made and compared with the actual results of the project.