Browsing Institutt for energi og prosessteknikk by Journals "Energy"
Now showing items 41-52 of 52
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Process design and economic optimization of boil-off-gas re-liquefaction systems for LNG carriers
(Peer reviewed; Journal article, 2019)Recent LNG carriers are equipped with high pressure gas injection engines. However, there has been a lack of research on liquefaction processes for boil-off gas (BOG) on LNG ships driven by high pressure fuel. Thus, this ... -
Process integration of organic Rankine cycle (ORC) and heat pump for low temperature waste heat recovery
(Peer reviewed; Journal article, 2018)Organic Rankine cycles (ORCs) have been a mature technology for low temperature waste heat utilization. However, the relatively low thermal efficiency and incomplete waste heat recovery limit the power output of ORC systems. ... -
Selection and design of post-combustion CO2 capture process for 600 MW natural gas fueled thermal power plant based on operability
(Journal article, 2017)Post-combustion CO2 capture (PCC) plant for a typical 600 MW natural gas fueled thermal power plant was designed as a trade-off between operability and mitigation of the efficiency penalty. Two modified PCC plant configurations ... -
Splitting measurements of the total heat demand in a hotel into domestic hot water and space heating heat use
(Journal article; Peer reviewed, 2020)To achieve more efficient energy use in buildings, space heating (SH) and domestic hot water (DHW) heat use should be analysed separately. Unfortunately, in many buildings, the heat meters measure the total heat use only, ... -
A study of working fluids for Organic Rankine Cycles (ORCs) operating across and below ambient temperature to utilize Liquefied Natural Gas (LNG) cold energy
(Peer reviewed; Journal article, 2019)Liquefied Natural Gas (LNG) contains significant amounts of cold exergy, which is normally wasted during regasification at receiving terminals. This paper addresses working fluid screening for Organic Rankine Cycles (ORCs) ... -
System model derivation of the CO2 two-phase ejector based on the CFD-based reduced-order model
(Journal article; Peer reviewed, 2017)The developed reduced-order model (ROM) of the R744 two-phase ejector was presented in this paper. The proper orthogonal decomposition (POD) model was employed together with the radial basis function (RBF) to evaluate the ... -
Techno-economic versus energy optimization of natural gas liquefaction processes with different heat exchanger technologies
(Peer reviewed; Journal article, 2022)The energy intensity of the natural gas liquefaction process in LNG value chains is considerable, and therefore a number of energy optimization studies have been conducted to obtain optimal operating conditions and maximize ... -
Technoeconomic analysis of a waste tire to liquefied synthetic natural gas (SNG) energy system
(Peer reviewed; Journal article, 2020)Thermochemical conversion of solid wastes through gasification offers the dual benefit of production of high-value fuels and environmentally friendly waste disposal. In this paper, we propose a novel process for production ... -
The development of a hydrocarbon high temperature heat pump for waste heat recovery
(Journal article; Peer reviewed, 2019)Waste heat is an abundant resource that if recovered with a heat pump would increase energy efficiency in industrial processes. This will provide improvements in heat utilization and reduce the environmental impact of ... -
Use of exergy efficiency for the optimization of LNG processes with NGL extraction
(Peer reviewed; Journal article, 2020)In this paper, processes for liquefied natural gas (LNG) production with upstream or integrated natural gas liquids (NGL) removal have been optimized and compared. Since the NGL and LNG production systems use both work and ... -
Weight and power optimization of steam bottoming cycle for offshore oil and gas installations
(Journal article; Peer reviewed, 2014)Offshore oil and gas installations are mostly powered by simple cycle gas turbines. To increase the efficiency, a steam bottoming cycle could be added to the gas turbine. One of the keys to the implementation of combined ... -
Work and Heat Integration: An emerging research area
(Journal article; Peer reviewed, 2018)The extension from Heat Integration (HI) and design of Heat Exchanger Networks (HENs) to including heating and cooling effects from pressure changing equipment has been referred to as Work and Heat Integration and design ...