Search for dissertations about: "payback"

Showing result 1 - 5 of 24 swedish dissertations containing the word payback.

  1. 1. Energy efficient renovation in a life cycle perspective : A case study of a Swedish multifamily-building

    Author : Ricardo Ramirez Villegas; Ola Eriksson; Thomas Olofsson; Harpa Birgisdottir; Högskolan Dalarna; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; Buildings; renovation; greenhouse gas emissions; district heating; energy efficiency; building environmental assessment tools; energy use; space heating; life cycle assessment; life cycle costing; payback; scenarios simulation; Byggnadsrenovering; växthusgasutsläpp; fjärrvärme; energieffektivitet; system för miljöcertifiering av byggnader; energianvändning; byggnadsuppvärmning; livscykelanalys; livscykelkostnader; återbetalning; scenariosimulering; Reesbe företagsforskarskola; Reesbe företagsforskarskola;

    Abstract : Energy use in the European Union is increasing. At the same time, it is estimated that by the year 2050 most of the EU population will be living in currently existing buildings. Some of these buildings are or will be in need of renovation, and they have identified a target to reduce overall energy use. READ MORE

  2. 2. Process Integration of Industrial Heat Pumps in Grass-Root and Retrofit Situations

    Author : Erik Wallin; Chalmers University of Technology; []
    Keywords : process integration; pinch technology; retrofit; industrial heat pumps; grass-root;

    Abstract : In several works, methods for process integration of heat pumps (HPs) have been developed, which in turn have been used for case studies in different industrial types. HP integration has thus proven to be a promising technique for utility savings and attractive payback periods. READ MORE

  3. 3. Industrial Bioprocess Developments for Biogas and Ethanol Production

    Author : Karthik Rajendran; Högskolan i Borås; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; biogas; ethanol; process design; techno-economic analysis; simulation; modeling; Resource Recovery; Resursåtervinning;

    Abstract : Current biofuels face a noteworthy misfortune on commercialization because of its economiccomparison with low-cost fuel from the oil reserves. To compete with gasoline as a fuel, thebiofuels need to be economically feasible and demonstrated on a large-scale. READ MORE

  4. 4. Energy Analysis of the Closed Greenhouse Concept : Towards a Sustainable Energy Pathway

    Author : Amir Vadiee; Viktoria Martin; Halime Paksoy; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; thermal energy storage; closed greenhouse; energy analysis; energy management; SRA - Energy; SRA - Energi;

    Abstract : The closed greenhouse is an innovative concept in sustainable energy management. The closed greenhouse can be considered as a large commercial solar building. In principle, it is designed to maximize the utilization of solar energy through seasonal storage. In a fully closed greenhouse, there are not any ventilation windows. READ MORE

  5. 5. Feasibility Analysis of Biogas Based Polygeneration for Rural Development in Bangladesh

    Author : MD. Ershad Ullah Khan; Andrew Martin; Josiah Knight; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Anaerobic digester; polygeneration; cooking gas; gas engine; electricity; membrane distillation; arsenic safe water; Energiteknik; Energy Technology;

    Abstract : Around three-quarters of Bangladeshis (total population 164 million) live in rural areas: only 25% of these households have access to grid electricity with non-reliable supply despite the country’s successful rural electrification program, kerosene is the predominant source for lighting, and woody biomass is virtually the only option available for cooking. Aside from this energy service challenges the rural population also struggles with unsafe drinking water in terms of widespread arsenic contamination of well water. READ MORE