Blar i Institutt for energi og prosessteknikk på tittel
Viser treff 1835-1854 av 4137
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Heat Recovery in Combination with Different Heat Pump Solutions for Energy Supply
(Master thesis, 2015)The main purpose of this Master's thesis has been to investigate the performance of different methods of heat recovery from ventilation air. Comparisons have been made with regard to delivered energy for heating of domestic ... -
Heat recovery ventilation design limitations due to LHC for different ventilation strategies in ZEB
(Journal article; Peer reviewed, 2022) -
Heat release rate response of azimuthal thermoacoustic instabilities in a pressurized annular combustor with methane/hydrogen flames
(Journal article; Peer reviewed, 2022)In this study, the heat release rate (HRR) response during self-excited azimuthal thermoacoustic instabilities in a pressurized annular combustor is investigated for hydrogen/methane blended flames. The equivalence ratio ... -
Heat Storage for Cooking: A Discussion on Requirements and Concepts
(Peer reviewed; Journal article, 2023)Methodologies for direct and indirect solar energy for cooking are discussed. Clean and renewable energy solutions for cooking are, in particular, in demand in the sub-Saharan region where fuel wood is the main source of ... -
Heat Storage for oil based solar concentrators
(Master thesis, 2012)As the world’s energy demand increases, more and more focus is directed towards different solar energy solutions. In many African countries, a great share of the population cook their food with firewood as the energy source. ... -
Heat Storage for Vapour Based Solar Concentrators
(Master thesis, 2012)In a world where energy demand, population, and environmental concern are increasing by the day, the use of solar energy and other renewable energy sources becomes ever more important. Most of the African population lives ... -
Heat to H2 - Hydrogen production in a closed loop RED-system
(Master thesis, 2018)Reverse electrodialysis (RED) in an alternative for production of storable, renewable energy for the future. In the context of climate change, fossil fuel scarcity and international agreements such as the Paris Treaty, ... -
Heat to H2: Using Waste Heat for Hydrogen Production through Reverse Electrodialysis
(Journal article; Peer reviewed, 2019)This work presents an integrated hydrogen production system using reverse electrodialysis (RED) and waste heat, termed Heat to H2. The driving potential in RED is a concentration difference over alternating anion and cation ... -
Heat to H2: Using Waste Heat to Set Up Concentration Differences for Reverse Electrodialysis Hydrogen Production
(Journal article; Peer reviewed, 2018)The present work suggests two concepts for producing hydrogen by reverse electrodialysis. Reverse electrodialysis is a technology that uses concentration differences to create electrical energy. In this work, the energy ... -
Heat to Hydrogen by RED—Reviewing Membranes and Salts for the RED Heat Engine Concept
(Peer reviewed; Journal article, 2022)The Reverse electrodialysis heat engine (REDHE) combines a reverse electrodialysis stack for power generation with a thermal regeneration unit to restore the concentration difference of the salt solutions. Current approaches ... -
Heat to Hydrogen by Reverse Electrodialysis—Using a Non-Equilibrium Thermodynamics Model to Evaluate Hydrogen Production Concepts Utilising Waste Heat
(Peer reviewed; Journal article, 2022)The reverse electrodialysis heat engine (REDHE) is a promising salinity gradient energy technology, capable of producing hydrogen with an input of waste heat at temperatures below 100 °C. A salinity gradient drives water ... -
Heat transfer and pressure drop characteristics of the silicone-based plate heat exchanger
(Journal article; Peer reviewed, 2019)The paper presents an experimental investigation of a silicone based heat exchanger, with passive heat transfer intensification by means of surface enhancement. The main objective of this paper was to experimentally ... -
Heat transfer and pressure drop of supercritical CO2 in brazed plate heat exchangers of the tri-partite gas cooler
(Peer reviewed; Journal article, 2021)The heat transfer characteristic of supercritical CO2 is an essential research topic due to its significant influence on the performance of heat exchangers and systems. In this paper, the heat transfer and pressure drop ... -
The heat transfer coefficient similarity between binary and single component flow condensation inside plain pipes
(Peer reviewed; Journal article, 2022)To identify the heat transfer mechanisms during flow condensation of binary mixtures inside pipes has motivated vast research in the past decades. While the prediction capabilities of models have substantially improved due ... -
Heat-to-power conversion from variable surplus heat sources utilizing a thermal energy storage
(Master thesis, 2019)Målet med dette arbeidet var å undersøke den potensielle nytten av termisk buffring i et varmegjennvinningssystem. Arbeidet undersøkte muligheten for å integrere en form for termisk lagring inn i et varmegjennvinningssystem ... -
Heating and Ventilation of Highly Energy Efficient Residential Buildings: Environmental Assessment of Technology Alternatives
(Master thesis, 2011)The aim of this study was to determine the level of environmental impact and primary energy resulting from demands placed on residential ventilation and heating systems; a conventional residential house built to the 2007 ... -
Heating performance enhancement of a new design trombe wall using rectangular thermal fin arrays: An experimental approach
(Journal article; Peer reviewed, 2019)It has been nowadays recognized that addressing energy use in buildings can reduce the fossil fuels usage and CO2 emission. Trombe wall is a widely applicable passive solar design option that can significantly reduce the ... -
Heating power at room and building levels in passive houses and low-energy buildings
(Master thesis, 2015)This master thesis investigates the Norwegian standard for calculating necessary power demand, NS-EN 12831:2003- Varmesystemer i bygninger - Metode for beregning av dimensjonerende effektbehov. In that context, it is also ... -
Heating system performance estimation using optimization tool and BEMS data
(Journal article, 2008)Causes and effects of a few real faults in a hydronic heating system are explained in this paper. Since building energy management system (BEMS) has to be utilized in fault detection and diagnosis (FDD), practical explanations ... -
Helium Extraction from LNG End Flash
(Master thesis, 2014)Helium is an invaluable element as it is widely used in industry such as cryo-genics and welding due to its unique properties. However, helium shortage is expected in near future because of increasing demand and the anxiety ...