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 13 of 13 for “"heating requirements"”.
-
Modelling building heating requirements.
… model for the assessment of building heating requirements. The model has been incorporated into a FORTRAN computer program, ENMAN, which allows the rapid production of tabular and graphical comparisons between actual monthly fuel consumption and calculated requirements. The program was …
-
Heat recovery and thermal storage : a study of the Massachusetts State Transportation Building
… water thermal storage system to provide building heating and cooling. The potential benefits of this type of system include both energy savings and operating and equipment cost savings when compared to more conventional building heating and cooling systems. The study involved monitoring of …
-
Sunspaces for passive building heating: calculation models and utilization of empirical data
… focuses on the reduction of winter energy requirements due to the presence of a sunspace, it analyses the involved physical phenomena, and it considers tools to design sunspaces and to optimize them from the point of view of energy requirements. Particular attention is given to the …
-
Investigation of a Fuel Cell Based Total Energy System for Residential Applications
… and thermal energy for space and domestic water heating. Total energy systems (TES) which provide both electricity and thermal energy can meet these needs more effectively than conventional systems because thermal energy rejected during the on-site production of electricity can be recovered to …
-
Optimal trajectories for hypervelocity flight
… problem is studied: (P4) minimize the peak heating rate. Numerical solutions for Problems (P1), (P2), (P3), (P4) are obtained by means of the sequential gradient-restoration algorithm for optimal control problems. The engineering implications of the results obtained are discussed. In …
-
Membrane distillation for high salinity desalination
… the feed stream resulted in lower fluxes, larger heating requirements and lower GOR values. The second law efficiency, however, is higher under these conditions since the least heat for separation increases faster than the system's specific energy consumption with increase in salinity. Under high …
-
Scale-up and Measurement Enhancements of a BioGenerator Bioreactor
… near Cobalt, Ontario to provide the aeration and heating requirements of the system. Novel methods of accurately measuring dissolved oxygen and volumetric mass transfer coefficient in ferric sulfate broth using microbial biooxidation stoichiometry and electrochemical amplification processes were …
-
Anaerobic Co-digestion of Wastewater Treatment Pond Algae with Wastewater Sludge
… An engineering model was developed to estimate heating requirements and net electricity production for full-scale algae digesters. For two example climates (Mediterranean and continental desert), the model predicted that despite the lower methane production of algae digestion, heat recovered …
-
Thermal Modelling, Management, and Electrical Safety Assessment for Containerised Vanadium Flow Battery Systems
… of tanks and stacks without additional heating in regions with low ambient temperatures. It is better to isolate the inverters from the inside of the container in scenarios when the ambient temperature is high. Passive cooling is not sufficient to maintain VFB normal operation for high …
-
Evaluation of anaerobic membrane bioreactors and hydrothermal catalytic gasification for enhanced conversion of organic wastes to renewable fuels
… of theoretical methane). However, HCG’s higher heating requirements may lead to AD being more energetically favorable when processing organics with high moisture contents. Further analysis with newspaper feedstock, taking into account operational heating and catalyst embedded energy costs, …
-
Heating, ventilating and air-conditioning system energy demand coupling with building loads for office buildings.
… nondomestic buildings’ total energy consumption. Heating, ventilating and air conditioning (HVAC) systems are the largest energy end use in the nondomestic sector, with energy consumption close to 50% of total energy consumption. Different HVAC systems have different energy requirements when …
-
An analysis of annual environmental conditions and heat gains, and theoretical assessment of approaches to improve summer thermal comfort, of the Energy Research Centre at the University of Cape Town
… ERC thermal zones. The Base Case annual cooling requirements were determined to be 27.64 MWhth, while peak cooling load was found to be 66.87 kWth. Sensible cooling dominated total cooling loads in summer months. East and west facing thermal zones required the greatest cooling energy (normalised …
-
Developing a Probabilistic Stock Turnover System Dynamics Model to Forecast Whole-life Energy of Chinese Urban Residential Building Stock
… to the urban context in north China, where space heating requirements are most significant, and integrating it with the probabilistic stock turnover model, the operational energy is forecast. The results show that embodied and operational energy are likely to peak around 2027 and 2051, …