Searched for: mods_note_programme_s%3A%22Energy%255C+Technology%22
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Van Miltenburg, R.M. (author)
Most of the heat in Dutch district heating networks is produced by fossil fuels. In this study the limits and most promising configurations for the feed-in of solar heat from consumers have been investigated. The results have been evaluated in terms of total annual solar gain, solar gain per collector area, solar fraction, CO2 reduction and...
master thesis 2016
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Liang, X. (author)
In the oil and gas industry, pipeline networks are used to transport the production fluids from wells to production plants. During normal operation, the pipelines need regular cleaning and inspection. Typically, the pipeline maintenance is performed by pigging, which refers to using devices known as “pigs ”(Pipeline Inspection Gauges) to perform...
master thesis 2015
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Meijn, G. (author)
Cavitation is defined as the process of formation and disappearance of a vapor phase in a liquid when this liquid is subjected to reduced pressures, followed by an increase of pressure. One of the main challenges in the design and application of centrifugal pumps is the ability to control and limit the development of cavitation. It is generally...
master thesis 2015
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Iyer, S.V. (author)
In recent years, the scientific community has shown increased interest in the use of uncertainty quantification techniques for complex thermodynamic systems. One such complex system is the Organic Rankine Cycle (ORC) power system for which a turbine is often the prime mover. These systems operate in a region close to the critical conditions of...
master thesis 2015
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Shreedharan, V.A. (author)
Extraction of hydrocarbons from the sub-surface is becoming harder with the reservoirs getting smaller and the formations increasingly tighter. Considering the current circumstances, production enhancement otherwise known as “stimulation” techniques, play a vital role in ensuring economic returns from a hydrocarbon reservoir. The use of water...
master thesis 2015
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Van den Berg, A.H.W.F. (author), Verkooijen, A.H.M. (author)
Large-scale coal-fired power plants are typically designed as base-load units. This means that they are traditionally run at continuous high loading levels, most often full-load. The current energy market asks for more flexibility as renewable energy sources continue to penetrate the energy market. Coal-fired power plants are forced to operate...
master thesis 2015
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Wang, M. (author)
In the Netherlands, green residues such as verge grass are a possible alternative to (partially) replace traditional fossil fuels. A feasible way of doing this, without large modification costs on existing power plants, is biomass co-firing. However, grass has high moisture content, poor grindability properties and high ash content, which have...
master thesis 2015
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Groot, S. (author)
In this report a district heating system is analyzed at the Tata steel site. A case study is made for a number of buildings, which are currently heated with a gas boiler. A computer model is developed to calculate the optimal piping path and diameters for such a network. The heat losses of this network are calculated with the complex potential...
master thesis 2014
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Hernandez Aita, D.C. (author)
master thesis 2014
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Ismail, U. (author)
Report PRE-2628. The Algebraic Structure Based Model (ASBM) of Langer and Reynolds (2003) provides an innovative approach for modeling the turbulent stresses, while incorporating information on the structure of turbulence and providing closure for Reynolds-averaged Navier-Stokes equations. The normal turbulent stresses, for which the ASBM has...
master thesis 2014
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Hermans, C.W.M. (author)
In this research a new rotary chemical looping combustion (CLC) reactor was developed which is suitable for larger scales and solves some of the issues of both fluidized bed and fixed bed configurations. It should therefore be able to produce a continuous hot gas flow, in order to make it compatible with large-scale energy or heat production.To...
master thesis 2013
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Michas, D. (author)
The desalination industry has grown exponentially the last four decades as countries seek solutions to water scarcity caused by population growth, climate change, pollution and industrial development. All source water types included, reverse osmosis is the prevalent desalination process, accounting for more than half of the global capacity. The...
master thesis 2013
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Van Eckeveld, A. (author)
Enhanced greenhouse gas emisions in the past century contributed to the global average temperature rise. The emission of greenhouse gases, therefore, should be limited in the coming decades. One way to do so is by capturing the greenhouse gasses (like CO2) from industrial flue gases (post-combustion capture). This can be achieved in a chemical...
master thesis 2013
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Patel, A. (author)
In the present work, a comprehensive review on different mechanisms affecting heat transfer characteristics of supercritical flows is carried out. The physical mechanism of heat transfer is then further investigated using inhouse DNS data. In addition, RANS simulations of a heated vertical pipe with supercritical CO2 are carried out using...
master thesis 2013
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Hattiangadi, A. (author)
The Organic Rankine Cycle is an energy conversion cycle similar to the conventional Rankine cycle which runs on a working fluid other than water. The selection of a working fluid is a critical part of designing an Organic Rankine Cycle (ORC) system. The number of fluid types actually used in commercial ORC power plants do not justify the number...
master thesis 2013
document
Hattiangadi, A. (author)
The Organic Rankine Cycle is an energy conversion cycle similar to the conventional Rankine cycle which runs on a working fluid other than water. The selection of a working fluid is a critical part of designing an Organic Rankine Cycle (ORC) system. The number of fluid types actually used in commercial ORC power plants do not justify the number...
master thesis 2013
document
Suarez Raspopov, R.S.R. (author)
In aircraft engines, especially in turbomachinery components, large part of the flow along the surface is laminar or transitional. The boundary layer development, losses, efficiency and heat transfer are greatly affected by the location and extend of the laminar-to-turbulent transition. The accurate prediction of the transition process is...
master thesis 2013
document
Van Wijhe, A. (author)
Flue gas from combustion or syngas from gasification can contain fine particles, so called aerosols. These can be potentially harmful for downstream equipment or if emitted to the atmosphere, be inhaled by humans and cause respiratory problems. Standard practice to mitigate this is to use a cyclone which has a low filtration efficiency for sub...
master thesis 2013
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Stathis, V. (author)
The introduction of renewable energy technologies such as wind and solar energy in the electricity market cause the increase of load variations and rapid load changes of large Gas Turbine Combined Cycle (GTCC) power plants. This leads to the evolution of extra thermal stresses in critical parts of the plant such as the boiler. The present study...
master thesis 2013
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Verburg, M.W. (author)
Current energy production is done in a way that cannot be sustained ultimately. Biomass is ideal as a sustainable alternative because it can be used in the existing energy infrastructure. For coal power plants verge grass is one of the products being considered for co-firing. The moisture content and its bioactivity currently prevent direct co...
master thesis 2013
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