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.
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Showing 1 to 20 of 99 for “"chilled"”.
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Opportunities for marketing chilled Indian samosas in Australia
… paper are to: • quantify the market size for chilled samosas; and • evaluate the feasibility of manufacturing chilled samosas in Australia. For this purpose, feasibility was determined on the following indices: • minimum return of investment of 10% per annum; and • minimum net profit of …
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A scale model study of displacement ventilation with chilled ceilings
… a comfortable space is between 25 and 40 W/m2. Chilled ceilings can be added to increase the cooling capacity of the system. A scale model study was carried out to determine comfort levels at different conditions, to establish maximum cooling loads and to observe flow patterns in a typical …
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Optimal Allocation of Building Cooling Loads to Chilled Water Plant Equipment
… systems that control the operation of the chilled water plant. The system that controls the chilling equipment selects the temperatures of the water streams and the speed of the cooling tower fans to meet the building loads. In a system with several chillers or towers, the system also …
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Optimal Design and Operation of A Hybrid Gas/Electric Chilled Water Plant
The design of a chilled water plant involves selecting the size and type of chillers to be employed and determining the operating strategy. The types may include both gas engine and electric motor driven chillers. The issues that have to be considered in the selection problem are to incorporate …
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Modeling of Passive Chilled Beams for use in Efficient Control of Indoor-Air Environments
… of indoor air environments. Halton passive chilled beams are used to cool rooms and the focus of this work is to model the beams. This work also reviews the mesh making process in Gmsh. ANSYS Fluent was used throughout the entire research and this thesis describes the software and a careful …
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Evaluating the performance of passive chilled beams with respect to energy efficiency and thermal comfort
<p>Existing modeling approaches for passive chilled beams determined from tests on individual chilled beams in a laboratory are not adequate for assessing overall energy usage and occupant comfort within building simulation programs. In addition, design guidelines for passive chilled beam systems …
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Impact of strain variability on the risk presented to chilled foods by non-proteolytic clostridium botulinum
… microbial risk assessment for minimally heated chilled foods by including information on variability of non-proteolytic Clostridium botulinum at strain level. The research on strain variability covers practical experiments as well as literature surveys and focuses on heat resistance properties …
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The effect of tris aloe vera (barbadensis miller) gel on chilled and frozen-thawed bull spermatozoa quality
… gel extender was assessed after the semen was chilled at 5 0C in a refrigerator for different storage times up to 120 hours, and frozen in liquid nitrogen at -196 0C for 5 days in experiment two. Assessment was done for morphology, motility, and viability of bull spermatozoa. Semen samples were …
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The effect of inlet conditions and tank geometry on the thermal performance of stratified chilled water storage
… demand charges on consumption during peak hours. Chilled water storage has emerged as one of the simplest and most effective methods for shifting on-peak cooling loads to off-peak hours. With estimates of the electricity consumed by space cooling at nearly 50% of the summer peak, chilled water …
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Factors affecting the quality and shelf-life of cooked chilled foods with special reference to full meal vending.
… industry indicated that the shelf-life of chilled menu items served from vending machines rarely exceeded 24 hours. This necessitated food production and distribution to vending sites on a daily basis. The short life coupled with unpredictable consumer demand may result in high food wastage …
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Cooling system design tool for rapid development and analysis of chilled water systems aboard U.S. Navy surface ships
… to study the heat transfer process within the chilled water system and the auxiliary seawater system and develop a Cooling System Design Tool (CSDT) based on the thermodynamic laws that govern heat transfer as well as the hydrodynamic principles that govern fluid flow, specifically the …
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Cooling system early-stage design tool for naval applications
… Whereas in the past, the relatively compact Chilled Water system could be tucked away where space was available, the higher demand for chilled water has resulted in a potentially exponential growth in size and weight of the components which make up this system; as a result, the design of the …
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Meta-modeling and Optimization of Computational Fluid Dynamics (CFD) analysis in thermal comfort for energy-efficient Chilled Beams-based Heating, Ventilation and Air-Conditioning (HVAC) systems
… associated with workspaces conditioned by chilled beams and evaluated the methods to reduce energy consumption.
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An experimental simulation of liquid fuel injection into a heated subsonic gas crossflow
… properties to a simulated case where a chilled injectant was injected into an ambient subsonic airstream. This task was accomplished through injection of chilled Freon-12 into the Virginia Tech 23 x 23 cm. blow-down wind tunnel at a freestream Mach number of 0.44. The freestream …
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Antarctic phytoplankton and climate change using Holocene sedimentary DNA, fossils and chemical proxies.
… (ii) Test the viability of frozen versus chilled cores for sedaDNA and define best practice (iii) Quantify whole-community change, including phytoplankton, zooplankton, viruses and microbes, and coupling to climate. (iv) Compare northern (Maxwell Bay) and southern (Börgen Bay) responses to …
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Alkaline igneous rocks of the coastal belt, south of Luderitz, South West Africa : a petrological study
… can be recognised. The first phase produced chilled nepheline syenites beneath the roof of the intrusion. These chilled rocks grade downwards into coarse-grained foyaites. The second phase was the emplacement of the Inner Foyaite which crystallized as a cylindrically zoned plug, capped by a …
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An open source controlled environment agriculture platform : exploration of root zone temperature effects and thermal management
… of 22.7°C, and in the second trial, the RZT was chilled to an average temperature of 20.5°C. For both trials, the air temperature was controlled to mimic a warm climate, with set temperatures of 300°C during the daytime and 25°C at night. The basil in the chilled RZT condition exhibited poor …
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