Essays about: "economizer"

Found 5 essays containing the word economizer.

  1. 1. Evaluation of an economizersolution for a heat pump

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

    Author : Elsa Forsgren; [2020]
    Keywords : ;

    Abstract : This thesis evaluates the performance of a heat pump intended to be used as an economizer. The idea is to use the heat from still hot refrigerant after the condenser in a larger heat pump, running on propane, as the heat source for the economizer pump. READ MORE

  3. 2. Experimental Study to Reduce CO Emissions in Skellefteå Kraft's 16 MW Bubbling Fluidized Bed Boiler

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : William Johansson; [2019]
    Keywords : ;

    Abstract : Skellefteå Kraft has had high CO emissions problems in a bubbling fluidized bed (BFB) boiler in Malå.Statistical emissions data from 2013 to 2019 shows plant average emissions of 1230 ppm. Thisexceeds the recommended 440 ppm (6 % O2) that Naturvårdsverket proposes (Naturvårdsverket,2005). READ MORE

  4. 3. 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; [2018]
    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

  5. 4. Comparative Study of Different Organic Rankine Cycle Models: Simulations and Thermo-Economic Analysis for a Gas Engine Waste Heat Recovery Application

    University essay from KTH/Kraft- och värmeteknologi

    Author : Tihomir Rusev; [2015]
    Keywords : ORC; Waste Heat Recovery; Aspen Plus; Cascaded Cycle; Thermo-Economic; ORC Simulations; ORC Models; ORC Model Comparisons; Gas Engine Waste Heat Recovery; Hot Exhaust Gases; Multiple Waste Heat Sources; ORC Waste Heat Power Generation; Heat and Power; Combined Cycle; Siloxane;

    Abstract : Increasing the efficiency of conventional power plants is a crucial aspect in the quest of reducing the energy consumption of the world and to having sustainable energy systems in the future. Thus, within the scope of this thesis the possible efficiency improvements for the Wärtsilä 18V50DF model gas engine based combine power generation options are investigated by recovering waste heat of the engine via Organic Rankine cycle (ORC). READ MORE

  6. 5. Modeling of Heat Transfer

    University essay from Akademin för hållbar samhälls- och teknikutveckling

    Author : Tobias Wahlberg; [2011]
    Keywords : Boiler; steam; superheater; condenser; overall heat transfer coefficient; heat exchanger; Dymola; Modelica; heat transfer; fouling; economizer; process; simulator; evaporator; värmeöverföring; kondensor; överhettare; ekonomiser; värmeväxlare; ånga; ångteknik; kondensering; energiteknik; förångare; simulator;

    Abstract : Modeling of heat transfer using Dymola. In this report a evaporator, economizer and superheater where modeled. The report describes how the models where modeled and what input was most suitable for a accurate model. . READ MORE