A core task of engineers is to analyse energy related problems. The analytical treatment is usual... more A core task of engineers is to analyse energy related problems. The analytical treatment is usually based on principles of thermodynamics, fluid mechanics and heat transfer, but is increasingly being handled computationally.This unique resource presents a practical textbook, written for both undergraduates and professionals, with a series of 7D computer workbooks on an accompanying CD-ROM. The workbooks/spreadsheets are based on MS-Excel 20D0 (suitable for use with Windows 95/98/2000 or XP) and contain property data, formulae and iterative routines. However, electronic calculators can still be used if preferred, as all formulae and mathematical relationships are provided within the text.The book emphasises how complex problems can be decomposed in a series of simple steps. All thermophysical property computations are illustrated using diagrams within the text and on the companion CD-ROM, which are integrated with Excel workbooks and so allow the student or user to see how the output relates to real world phenomena. The results may then be copied electronically onto adjacent sheets, enabling otherwise tedious and time-consuming iterative calculations to be performed readily. As a simple application of the Excel workbooks, it becomes possible, using interactive graphs, to examine the effects on heat loss of variations of insulation thickness, to perform optimisation calculations, or to handle a variety of other tasks quickly and accurately. As a higher end of application, it is possible to combine large thermodynamic property databases to solve multi-mode heat transfer problems such as analysing steam generation within the super heater section of boiler tubes. Two-dimensional steady-state as well as transient heat conduction problems can also be solved using a Graphical User Interface to generate a given mesh. Mesh size variation is also manageable by the user and its effect on speed and accuracy of the numerical solution of partial differential equations may be investigated.
ABSTRACT Due to rapidly increasing numbers of vehicles, growing traffic congestion and the very l... more ABSTRACT Due to rapidly increasing numbers of vehicles, growing traffic congestion and the very limited use of emission control strategies, motor vehicles are emerging as the largest source of urban air pollution globally. The effectiveness of any control strategy depends on accurate emission models. This study is an attempt to estimate vehicular driving patterns in the Slovenian city of Celje. Using the TangoGPS program for measuring important driving parameters while a vehicle is in motion in traffic, the urban driving cycle of this small city is estimated and then compared with the driving cycles of other cities in Europe. As predicted and demonstrated in the present paper the average speed of vehicles in smaller cities is higher than in larger ones.
Building Services Engineering Research and Technology, 2008
A simple low cost Integrated Collector Storage Solar Water Heater (ICS-SWH) was proposed for simu... more A simple low cost Integrated Collector Storage Solar Water Heater (ICS-SWH) was proposed for simulation in Scottish weather conditions. The system takes the form of a rectangular-shaped design incorporating the solar collector and storage tank into a single unit and the simplicity of construction and installation make this type of SWH a popular choice of solar water heater. A 3-month experimental and numerical study on the ICS-SWH was undertaken in order to compare the results with a newly developed macro model. Improvements were incorporated into the macro model by differentiating non-finned and finned collectors. The macro model was able to compare the water bulk temperature variation in different SWH collector material, with or without fins, internal temperature and external weather conditions for a given aspect ratio. Numerical results obtained by this new tool were found to be in close agreement with the experimental data. Practical applications: Direct comparison of measured s...
Building Services Engineering Research and Technology, 2010
The climate is changing, both globally and in the UK. To adapt effectively, engineers and planner... more The climate is changing, both globally and in the UK. To adapt effectively, engineers and planners need as much information as possible on how the climate will evolve. The UK Climate Impacts Programme (UKCIP) provided this in 2002 with UKCIP02 and the latest data UKCP09, which provides data to a resolution of 5 km square grids over the UK. Data sets from these were used in this study along with the historical measured data for three locations — Bracknell (London), Manchester and Edinburgh — to analyse critically the likely changes that may occur in the key climate variables, that is temperature, sunshine duration and solar irradiation. These parameters have an important bearing on the design and function of buildings and building services. Sunshine duration is the main variable that is used to obtain solar radiation in the UKCP09 5 km grid data. For the grids containing Bracknell, Manchester and Edinburgh, most of the UKCP09 data sets for the years 2050 and 2080 showed abnormally el...
48 Computational Study Of An Integrated Collector Storage Solar Water Heater Celine Garnier Schoo... more 48 Computational Study Of An Integrated Collector Storage Solar Water Heater Celine Garnier School of Engineering and Built Environment c. garnier@ napier. ac. uk A simple low cost Integrated Collector Storage(ICS) solar water heater (SWH) was proposed for simulation in Scottish ...
This chapter discussed electric vehicle technology and its energy consumption. Lithium as an ener... more This chapter discussed electric vehicle technology and its energy consumption. Lithium as an energy source and taking fossil fuels place is presented in the following section. Battery technology is a relatively underdeveloped technology. When the battery nears full capacity, the charging time slows down due to the chemical relationship between electrons and electrolyte. Various urban, rural, and motorway driving styles are discussed. A model to predict propulsion energy is also presented by the present work.
A core task of engineers is to analyse energy related problems. The analytical treatment is usual... more A core task of engineers is to analyse energy related problems. The analytical treatment is usually based on principles of thermodynamics, fluid mechanics and heat transfer, but is increasingly being handled computationally.This unique resource presents a practical textbook, written for both undergraduates and professionals, with a series of 7D computer workbooks on an accompanying CD-ROM. The workbooks/spreadsheets are based on MS-Excel 20D0 (suitable for use with Windows 95/98/2000 or XP) and contain property data, formulae and iterative routines. However, electronic calculators can still be used if preferred, as all formulae and mathematical relationships are provided within the text.The book emphasises how complex problems can be decomposed in a series of simple steps. All thermophysical property computations are illustrated using diagrams within the text and on the companion CD-ROM, which are integrated with Excel workbooks and so allow the student or user to see how the output relates to real world phenomena. The results may then be copied electronically onto adjacent sheets, enabling otherwise tedious and time-consuming iterative calculations to be performed readily. As a simple application of the Excel workbooks, it becomes possible, using interactive graphs, to examine the effects on heat loss of variations of insulation thickness, to perform optimisation calculations, or to handle a variety of other tasks quickly and accurately. As a higher end of application, it is possible to combine large thermodynamic property databases to solve multi-mode heat transfer problems such as analysing steam generation within the super heater section of boiler tubes. Two-dimensional steady-state as well as transient heat conduction problems can also be solved using a Graphical User Interface to generate a given mesh. Mesh size variation is also manageable by the user and its effect on speed and accuracy of the numerical solution of partial differential equations may be investigated.
ABSTRACT Due to rapidly increasing numbers of vehicles, growing traffic congestion and the very l... more ABSTRACT Due to rapidly increasing numbers of vehicles, growing traffic congestion and the very limited use of emission control strategies, motor vehicles are emerging as the largest source of urban air pollution globally. The effectiveness of any control strategy depends on accurate emission models. This study is an attempt to estimate vehicular driving patterns in the Slovenian city of Celje. Using the TangoGPS program for measuring important driving parameters while a vehicle is in motion in traffic, the urban driving cycle of this small city is estimated and then compared with the driving cycles of other cities in Europe. As predicted and demonstrated in the present paper the average speed of vehicles in smaller cities is higher than in larger ones.
Building Services Engineering Research and Technology, 2008
A simple low cost Integrated Collector Storage Solar Water Heater (ICS-SWH) was proposed for simu... more A simple low cost Integrated Collector Storage Solar Water Heater (ICS-SWH) was proposed for simulation in Scottish weather conditions. The system takes the form of a rectangular-shaped design incorporating the solar collector and storage tank into a single unit and the simplicity of construction and installation make this type of SWH a popular choice of solar water heater. A 3-month experimental and numerical study on the ICS-SWH was undertaken in order to compare the results with a newly developed macro model. Improvements were incorporated into the macro model by differentiating non-finned and finned collectors. The macro model was able to compare the water bulk temperature variation in different SWH collector material, with or without fins, internal temperature and external weather conditions for a given aspect ratio. Numerical results obtained by this new tool were found to be in close agreement with the experimental data. Practical applications: Direct comparison of measured s...
Building Services Engineering Research and Technology, 2010
The climate is changing, both globally and in the UK. To adapt effectively, engineers and planner... more The climate is changing, both globally and in the UK. To adapt effectively, engineers and planners need as much information as possible on how the climate will evolve. The UK Climate Impacts Programme (UKCIP) provided this in 2002 with UKCIP02 and the latest data UKCP09, which provides data to a resolution of 5 km square grids over the UK. Data sets from these were used in this study along with the historical measured data for three locations — Bracknell (London), Manchester and Edinburgh — to analyse critically the likely changes that may occur in the key climate variables, that is temperature, sunshine duration and solar irradiation. These parameters have an important bearing on the design and function of buildings and building services. Sunshine duration is the main variable that is used to obtain solar radiation in the UKCP09 5 km grid data. For the grids containing Bracknell, Manchester and Edinburgh, most of the UKCP09 data sets for the years 2050 and 2080 showed abnormally el...
48 Computational Study Of An Integrated Collector Storage Solar Water Heater Celine Garnier Schoo... more 48 Computational Study Of An Integrated Collector Storage Solar Water Heater Celine Garnier School of Engineering and Built Environment c. garnier@ napier. ac. uk A simple low cost Integrated Collector Storage(ICS) solar water heater (SWH) was proposed for simulation in Scottish ...
This chapter discussed electric vehicle technology and its energy consumption. Lithium as an ener... more This chapter discussed electric vehicle technology and its energy consumption. Lithium as an energy source and taking fossil fuels place is presented in the following section. Battery technology is a relatively underdeveloped technology. When the battery nears full capacity, the charging time slows down due to the chemical relationship between electrons and electrolyte. Various urban, rural, and motorway driving styles are discussed. A model to predict propulsion energy is also presented by the present work.
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