Sökning: "isobutane"

Hittade 4 uppsatser innehållade ordet isobutane.

  1. 1. Investigation of new refrigerants for a large-scale heat pump and evaluation of system performance

    Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

    Författare :Hanna Grahn; Matilda Eriksson; [2023]
    Nyckelord :Large-scale heat pump; refrigerant; COP;

    Sammanfattning : Heat production accounted in 2021 for 50 % of the energy end use globally, where a strongconnection to fossil sources still exists. Large-scale electrical heat pumps can therefore have akey role in the energy system to enable a decreased reliance on fossil fuels and at the same timecontribute to stable system when incorporating more intermittent renewable sources. LÄS MER

  3. 2. Performance comparison between reciprocating and scroll compressor heat pumps with R600a refrigerant

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :CHRISTOFER KRONSTRÖM; [2021]
    Nyckelord :Heat pump; R600a; isobutane; scroll compressor; reciprocating compressor; piston compressor; Värmepump; R600a; isobutan; scrollkompressor; kolvkompressor;

    Sammanfattning : A performance comparison of heat pumps using a scroll (Sanden) and a reciprocating (Bitzer) compressor was conducted experimentally. The refrigerant used was R600a (isobutane). LÄS MER

  4. 3. Evaluation of an economizersolution for a heat pump

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Elsa Forsgren; [2020]
    Nyckelord :;

    Sammanfattning : 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. LÄS MER

  5. 4. Thermal energy recovery of low grade waste heat in hydrogenation process

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Sofia Hedström; [2014]
    Nyckelord :Low-grade waste heat; Waste heat recovery; Organic Rankine Cycle; Absorption Refrigeration; Aspen Plus; Steady-state simulations; Modeling and design;

    Sammanfattning : The waste heat recovery technologies have become very relevant since many industrial plants continuously reject large amounts of thermal energy during normal operation which contributes to the increase of the production costs and also impacts the environment. The simulation programs used in industrial engineering enable development and optimization of the operational processes in a cost-effective way. LÄS MER