Essays about: "district heating"

Showing result 1 - 5 of 295 essays containing the words district heating.

  1. 1. Production optimization for district heating : Short-term planning of district heating grid in Gävle, Sweden

    University essay from Mälardalens högskola/Akademin för ekonomi, samhälle och teknik; Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Author : Nicolas Lindgren; Karl Brogren; [2019]
    Keywords : Short-term planning; Optimization; District heating; Linear programming; Mixed integer non-linear programming; Branch and bound; Heat storage; MATLAB; TOMLAB;

    Abstract : Energy systems with a high portion of renewable energy from wind and solar power can suffer from fluctuations in production due to weak winds or cloudy weather, which may affect the electricity price. When producing heat and power in a combined heat and power plant, an additional heat storage tank can be used to store the heat surplus which is obtained when the power production is high, and the heat demand is low. READ MORE

  2. 2. DISTRICT HEAT PRICE MODEL ANALYSIS : A risk assesment of Mälarenergi's new district heat price model

    University essay from Mälardalens högskola/Akademin för ekonomi, samhälle och teknik; Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Author : Erik Landelius; Magnus Åström; [2019]
    Keywords : district heating; multilinear regression; Bootstrapping; Mälarenergi; weather parameters; heat prediction; statistical inference; Unscrambler;

    Abstract : Energy efficiency measures in buildings and alternative heating methods have led to a decreased demand for district heating (DH). Furthermore, due to a recent increase in extreme weather events, it is harder for DH providers to maintain a steady production leading to increased costs. These issues have led DH companies to change their price models. READ MORE

  3. 3. Simulation of Colorless Distributed Combustion

    University essay from Lunds universitet/Institutionen för Energivetenskaper

    Author : Hampus Olsson; [2019]
    Keywords : Computational Fluid Dynamics; Combustion; Gas Turbine; Emission reduction; Flameless Combustion; Colorless Distributed Combustion; Technology and Engineering;

    Abstract : Colorless distributed combustion (CDC) is a promising novel technology to reduce emissions of carbon monoxide and nitrogen oxides in gas turbine combustors. CDC features a different flame regime than conventional gas turbine combustors, associated with a distributed reaction zone and low and uniform temperatures due to dilution of combustion air with exhaust gases. READ MORE

  4. 4. Climate Impact from Operational Energy Use in Facilities & Households

    University essay from KTH/Hållbar utveckling, miljövetenskap och teknik

    Author : Eveline Haugaard; [2019]
    Keywords : Operational energy use; Climate impact; LCA methodology; Environmental evaluation of energy;

    Abstract : In 2017, the Swedish Parliament voted for a climate aim which says Sweden should achieve zero net emissions of greenhouse gases in 2045. The building and construction sector is one of the sectors that needs to reduce it’s climate impact. As of 2016, 12. READ MORE

  5. 5. Development and validation of a combined heat and power plant model for integration in DYESOPT

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : José Angel García; [2019]
    Keywords : ;

    Abstract : The liberalization of electricity markets and a growing penetration of renewables has led many countries to feel changes in the operation of their grids. The boundary conditions for the operation of conventional power plants are changing and, as such, an improved understanding of the varying loads and prices on the electricity grid is required to assess the performance of emerging combined cycle gas turbine (CCGT) concepts and to further optimize their design for these new markets in the pursuit of increasing their profitability, especially when considering co-generation of heat and power. READ MORE