Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 296 for “"Heater"”.
-
A new unity power factor quasi-resonant induction heater
… resonant converter provides AC for the induction heater coil. This AC current flowing in the induction coil creates an alternating electromagnetic field for the workpiece. An induction heating coil has been designed and built by using electrical equivalent coil design method. A novel control …
-
Pyroelectric emission from PbZr20Ti80O3 emitter coupled on silicon heater
… (PZT) film emitters coupled on silicon heater. The silicon heater is designed for generating joule heating on heater regions using low dosage ion implantation, while bridging electric connection on leg areas from high doped silicon. Sharp nano-meter scale tip arrays are fabricated to …
-
The performance of an integral greenhouse solar air-heater
The Baird-type solar collector is a solar air-heater, utilising black shade-cloth as the absorber, that is incorporated as part of the roof of a greenhouse. It is intended to be used, in conjunction with a heat storage device, to provide greenhouse heating (and cooling), and so to assist in …
-
Masonry heater performance evaluation: efficiency, emissions, and thermal modeling
… methods, have been modified for use on masonry heaters. The applicability of the two methods has been verified with 6 tests on two masonry heaters. Each test starts with a cold heater and requires five firings to achieve two different burn rates. The efficiencies calculated for each firing are …
-
Improvements on performance of a heat pump water heater system
Heat Pump Water Heater (HPWH) is classified as one renewable energy efficient technology, which could be explained by their environmentally friendly nature with low energy consumption. The Coefficient of Performance (COP) of the HPWH can be influenced by multiple factors: ambient temperature, …
-
The design of a combination room heater and hair dryer
Thesis (B.S.) Massachusetts Institute of Technology. Dept. of Mechanical Engineering, 1951.
-
Load Frequency Control for Electric Water Heater Using DBSCAN Algorithm in real-time
… a novel control strategy for residential water heaters to provide demand-side frequency regulation while maintaining customer comfort. The approach employs Density-Based Spatial Clustering of Applications with Noise (DBSCAN) algorithm to dynamically group water heaters based on their thermal …
-
Modeling and control of a silicon substrate heater for carbon nanotube growth experiments
… The computer program that controls the heater is user-adaptable, so that an experimenter can easily change the desired temperatures at various points of the process. Later, this heating system will become part of a much larger system that also incorporates a controlled flow rate. The …
-
Emissions, efficiency, and combustion chamber conditions of a smokeless, hand-fired coal heater
… Prince 76, a clean-burning, hand-fired coal heater developed by the British have been studied. It was desired to determine if the downdraft design of the Prince would lead to low emissions when operated on American coals. Temperature and species concentrations were measured in the unit's …
-
Design and fabrication of the microcantilever heater for rapid chemical vapor deposition graphene synthesis
… the fabrication process of the microcantilever heater for rapid chemical vapor deposition (CVD) graphene synthesis. Two types of 300 nm thick catalytic metals, copper and nickel, are integrated into the heater region ranging from 5 by 5 μm to 20 by 12 μm in size. The microcantilever heater is …
-
Transient distribution of refrigerant and oil in a residential heat pump water heater system
… distribution in a residential heat pump water heater (HPWH) system. In the experiments, R134a is used to pair with POE 22 oil as the working fluid. Quick Closing Valve Technique (QCVT) is employed to localize refrigerant and oil into each component of the system. Remove and Weigh Technique …
-
Development of a performance-based high pressure feed water heater model for Flownex SE
Feed-water heaters (FWHs) are an integral part of the power plant with respect to the overall heat recovery, and thus its efficiency. While the main purpose of the FWHs is to heat up the feed-water before being sent to the boiler, there are more added advantages owing to the installation of this …
-
An assessment of financial incentives for encouraging South Africa's domestic solar water heater market
SA has a demand for domestic hot water, which is supplied by a number of different technologies. For a number of reasons, including health reasons and versatility, Government has encouraged the demand for electricity to meet domestic requirements. But currently there is a shortage of electricity …
-
Design and implementation of a 6 kW wind powered water heater controller with PI control
In our quest to use more renewable energy to reduce our dependence on non-renewable fuels man has been harnessing wind, solar and hydro energy for many years. While hydo and solar energy are well established, it is only during the last decade that serious progress in wind energy has been made. …
-
Modeling Compact Non-Volatile Photonic Switching Based on Optical Phase Change Material and Graphene Heater
… driven by an integrated single-layer graphene heater, providing high electro-thermal efficiency, low absorption loss, and rapid switching speed. Computational simulations demonstrate reversible phase transitions of Sb₂Se₃ facilitating 2 working states with crosstalk (CT) down to -24 dB at 1550 …
-
Experimental study of transient pool boiling heat transfer under exponential power excursion on plate-type heater
… the thermal behavior of plate-type fuels or heaters in contact with a single-phase coolant. On the other hand, transient boiling heat transfer is a scarcely studied and much less understood phenomenon. Although, earlier studies have shown that important features of the boiling curve (i.e. …
-
Comparison of measured to predicted performance of owner-built solar integral collector storage water heater systems
… collector storage (ICS) passive solar water heater systems installed at various geographic locations in Virginia to predicted values calculated using Annual Performance Methodology (APM). APM is a prediction method developed by Alan Zollner that offers quick and easy comparisons of design …
-
Design, fabrication and testing of a parabolic trough solar collector air heater for a greenhouse solar dryer.
… a parabolic trough solar collector (PTSC) air heater for a GSD and testing its performance. Additionally, the performance of the modified GSD with and without the PTSC was investigated. Quantitative research design was employed in carrying out of this research study. The specific methodological …
-
Design, fabrication and testing of a parabolic trough solar collector air heater for a greenhouse solar dryer.
… a parabolic trough solar collector (PTSC) air heater for a GSD and testing its performance. Additionally, the performance of the modified GSD with and without the PTSC was investigated. Quantitative research design was employed in carrying out of this research study. The specific methodological …
Page 1 of 15