Analytical solutions of the steady or unsteady heat conduction
... Heat transfer is one of the most salient and fundamental research areas for any engineer, due to its ubiquity. Today the energy efficiency requirements are becoming more and more demanding. This motivates engineers to continuously improve the efficiency of heat transfer processes. For such analysis ...
... Heat transfer is one of the most salient and fundamental research areas for any engineer, due to its ubiquity. Today the energy efficiency requirements are becoming more and more demanding. This motivates engineers to continuously improve the efficiency of heat transfer processes. For such analysis ...
Recent advances in thermoregulation (Review)
... homeostasis and for a wide variety of physiological and clinical applications. It is covered in most elementary physiology courses, but often with a degree of superficiality and dogma, due to time and content constraints. As research in this area has progressed over the last few decades, major advan ...
... homeostasis and for a wide variety of physiological and clinical applications. It is covered in most elementary physiology courses, but often with a degree of superficiality and dogma, due to time and content constraints. As research in this area has progressed over the last few decades, major advan ...
Condensation Targeter II: Modelling surface
... Because of the relatively high vapour resistivity of most building fabrics diffusion is a negligible factor accounting for approximately 1% of the moisture transferred by bulk air movement. The hygroscopic impact is far more difficult to predict and several attempts have been made to find simple met ...
... Because of the relatively high vapour resistivity of most building fabrics diffusion is a negligible factor accounting for approximately 1% of the moisture transferred by bulk air movement. The hygroscopic impact is far more difficult to predict and several attempts have been made to find simple met ...
Prediction of Effective Thermal Conductivity of Refractory Materials
... the densities of the raw materials and the measured value of overall porosity 8. The grain size distributions of the constituents were measured by means of laser diffraction analysis and are modelled using either the lognormal distribution or the Rosin-Rammler-Sperling-Bennett 10 – 12 (RRSB) distrib ...
... the densities of the raw materials and the measured value of overall porosity 8. The grain size distributions of the constituents were measured by means of laser diffraction analysis and are modelled using either the lognormal distribution or the Rosin-Rammler-Sperling-Bennett 10 – 12 (RRSB) distrib ...
226_che.pdf
... and cost effective [5-6]. Theoretical approaches include numerical modeling or analytical derivation. For a complicated problem as the current investigation, the derivation of the thermal performance through an analytical approach is not very practical. This makes numerical modeling more attractive. ...
... and cost effective [5-6]. Theoretical approaches include numerical modeling or analytical derivation. For a complicated problem as the current investigation, the derivation of the thermal performance through an analytical approach is not very practical. This makes numerical modeling more attractive. ...
2+0+0+2 - Tunceli Üniversitesi
... diagrams. bending under general loads, axial load and bending. Bending, twisting, and the collapse of the beams, the elastic curve, integration, moment area and superposition by the method of calculating the effect of shear deformation of the elastic curve, energy methods, Castiqliano theorem and pr ...
... diagrams. bending under general loads, axial load and bending. Bending, twisting, and the collapse of the beams, the elastic curve, integration, moment area and superposition by the method of calculating the effect of shear deformation of the elastic curve, energy methods, Castiqliano theorem and pr ...
Dynamic Modeling and Control Strategies for a
... the solar input (e.g., due to clouds). However, input temperatures during normal operation may still vary as much as ±20◦ C throughout the year. Furthermore, using readily-available components, like re-purposed HVAC (heating, ventilation, and air conditioning) scroll compressors for expansion, while ...
... the solar input (e.g., due to clouds). However, input temperatures during normal operation may still vary as much as ±20◦ C throughout the year. Furthermore, using readily-available components, like re-purposed HVAC (heating, ventilation, and air conditioning) scroll compressors for expansion, while ...
merino for performance activewear
... How fabrics regulate heat and moisture flows are intrinsically linked. To illustrate this, consider the case of active sportswear. Such apparel should ideally support the thermoregulation of the athlete by promoting evaporative heat transmission (Pessenhofer et al. 1991). Such heat transmission aris ...
... How fabrics regulate heat and moisture flows are intrinsically linked. To illustrate this, consider the case of active sportswear. Such apparel should ideally support the thermoregulation of the athlete by promoting evaporative heat transmission (Pessenhofer et al. 1991). Such heat transmission aris ...
AN1029 Maximum Power Enhancement Techniques for SO-8 Power MOSFETs 1. Introduction
... the purpose of this paper is to aid the user in maximizing the power handling capability of the SO8 Power MOSFET offered by Fairchild Semiconductor. This effort allows the user to take full advantage of the exceptional performance features of Fairchild’s state-of-the-art Power MOSFET which offers ve ...
... the purpose of this paper is to aid the user in maximizing the power handling capability of the SO8 Power MOSFET offered by Fairchild Semiconductor. This effort allows the user to take full advantage of the exceptional performance features of Fairchild’s state-of-the-art Power MOSFET which offers ve ...
Heat Transfer Through Buildings - Fabric Heat Gain/Loss
... consider the thermal capacity of the walls and roof. Due to the finite and often large thermal capacity of the buildings, the heat transfer rate from outside to the outer surface is not equal to the heat transfer rate from the inner surface to the indoor space 1 . In addition, the thermal capacity ...
... consider the thermal capacity of the walls and roof. Due to the finite and often large thermal capacity of the buildings, the heat transfer rate from outside to the outer surface is not equal to the heat transfer rate from the inner surface to the indoor space 1 . In addition, the thermal capacity ...
Heat Sink Performance Testing
... polycarbonate sheet which has a very low thermal conductivity. It is used as an insulator to ensure that most of the heat generated goes up through the heat sink. On the top of the polycarbonate sheet is the heating pad, and on the top of the heating pad is the heat sink with high thermal conductivi ...
... polycarbonate sheet which has a very low thermal conductivity. It is used as an insulator to ensure that most of the heat generated goes up through the heat sink. On the top of the polycarbonate sheet is the heating pad, and on the top of the heating pad is the heat sink with high thermal conductivi ...
chapter 11 - Description
... ordinary building forms and materials. Under these circumstances, when passive systems were the only available solutions, human comfort and wellbeing suffered. Active systems provide another option. A building surface influences comfort primarily through its surface temperature; secondarily, a surfa ...
... ordinary building forms and materials. Under these circumstances, when passive systems were the only available solutions, human comfort and wellbeing suffered. Active systems provide another option. A building surface influences comfort primarily through its surface temperature; secondarily, a surfa ...
Aluminum and Stainless Steel Heat Exchangers in - Weil
... are named according to how their microstructure resembles a similar microstructure in steel. The properties of these classes differ but are essentially the same within the same class. Ferritic and austenitic stainless steels are used primarily because of the corrosion resistance, and good mechanical ...
... are named according to how their microstructure resembles a similar microstructure in steel. The properties of these classes differ but are essentially the same within the same class. Ferritic and austenitic stainless steels are used primarily because of the corrosion resistance, and good mechanical ...
Multilayer Insulation Testing at Varible Boundary Temperatures
... The National Aeronautics and Space Agency (NASA) is working toward going back to the Moon and beyond. Currently they are developing a dewar that can store liquid hydrogen (LH2) and liquid oxygen (LO2) in space so the capsule may refuel past the moon in order to continue toward Mars. However, thermal ...
... The National Aeronautics and Space Agency (NASA) is working toward going back to the Moon and beyond. Currently they are developing a dewar that can store liquid hydrogen (LH2) and liquid oxygen (LO2) in space so the capsule may refuel past the moon in order to continue toward Mars. However, thermal ...
Analysis of combined natural convection and thermal radiation heat
... step for energy equation. At each inner iteration, the linear system of the radiosities equations (Eq. 10) is solved by a direct method (Gauss elimination). Indeed, the grid was constructed such that the boundaries of physical domain coincided with the velocity grid lines. The points for pressure an ...
... step for energy equation. At each inner iteration, the linear system of the radiosities equations (Eq. 10) is solved by a direct method (Gauss elimination). Indeed, the grid was constructed such that the boundaries of physical domain coincided with the velocity grid lines. The points for pressure an ...
HIGH PERFORMANCE COMMMERCIAL BUILDINGS
... External shading devices should be designed according to the orientation of façade. For instance on North orientation minimum or no shading is required. On South orientation external shades should be designed after studying the sun path. Shading devices on South orientation could be permanent in na ...
... External shading devices should be designed according to the orientation of façade. For instance on North orientation minimum or no shading is required. On South orientation external shades should be designed after studying the sun path. Shading devices on South orientation could be permanent in na ...
11Chapter11_MEEB12-W..
... ordinary building forms and materials. Under these circumstances, when passive systems were the only available solutions, human comfort and wellbeing suffered. Active systems provide another option. A building surface influences comfort primarily through its surface temperature; secondarily, a surfa ...
... ordinary building forms and materials. Under these circumstances, when passive systems were the only available solutions, human comfort and wellbeing suffered. Active systems provide another option. A building surface influences comfort primarily through its surface temperature; secondarily, a surfa ...
Advances in dehydration of foods
... The term humidi®cation has been used in engineering to describe the interface transfer of mass and energy between a gas and a pure liquid when they are brought into contact. The term covers not only humidi®cation but also dehumidi®cation of the gases, measurement of vapor content, and cooling of bot ...
... The term humidi®cation has been used in engineering to describe the interface transfer of mass and energy between a gas and a pure liquid when they are brought into contact. The term covers not only humidi®cation but also dehumidi®cation of the gases, measurement of vapor content, and cooling of bot ...
AIR CONDITIONING
... temperature of a vapour and the boiling point of a liquid. AC systems use pressure to transfer heat – from the vehicle cabin to the AC system and from the refrigerant to the air outside the vehicle. ...
... temperature of a vapour and the boiling point of a liquid. AC systems use pressure to transfer heat – from the vehicle cabin to the AC system and from the refrigerant to the air outside the vehicle. ...
Influence of coupled pinch point temperature difference and
... temperature and the PPTD on the net power output and the costeffective performance. The lowest temperature of the flue gas at the evaporator outlet should exceed 90 C in order to avoid the low temperature corrosion. At the given external heat and cold source conditions, the optimum performance of t ...
... temperature and the PPTD on the net power output and the costeffective performance. The lowest temperature of the flue gas at the evaporator outlet should exceed 90 C in order to avoid the low temperature corrosion. At the given external heat and cold source conditions, the optimum performance of t ...
Review on thermal management systems using phase change
... Since there were no big differences in the melting time and maximum temperature of heater, the effect of the orientation on the thermal performance of the PCM package was thought to be negligible. The work by Wang et al. [54] also indicated the effect of orientation was limited. The thermal manageme ...
... Since there were no big differences in the melting time and maximum temperature of heater, the effect of the orientation on the thermal performance of the PCM package was thought to be negligible. The work by Wang et al. [54] also indicated the effect of orientation was limited. The thermal manageme ...
Heat Transfer Performance of Functionalized Graphene
... many water-based nanofluid studies have been carried out lately [8–10]. Despite the fact that nanofluids are two-phase systems (solid and liquid phases), many authors such as Pak and Cho [11], Xuan and Li [7], and Fard et al. [12] agree that their behavior is similar to that of a pure substance with ...
... many water-based nanofluid studies have been carried out lately [8–10]. Despite the fact that nanofluids are two-phase systems (solid and liquid phases), many authors such as Pak and Cho [11], Xuan and Li [7], and Fard et al. [12] agree that their behavior is similar to that of a pure substance with ...
Introduction to mantle convection 1 The fluid mantle
... already aware that there are plumes in the mantle. This is (probably) because the mantle is not only heated by radioactive decay, but also has a basal heat flux from the hotter core. Secular cooling of the core produces a thermal boundary layer at the base of the mantle (as shown in Figure 3), which ...
... already aware that there are plumes in the mantle. This is (probably) because the mantle is not only heated by radioactive decay, but also has a basal heat flux from the hotter core. Secular cooling of the core produces a thermal boundary layer at the base of the mantle (as shown in Figure 3), which ...
Temporal and spatial dispersion of human body temperature during
... All patients suffered from severe cardiac diseases or abnormalities that provided an indication for surgical reconstruction (American Society of Anesthesiologists Classification, ASA IV) and received open-heart surgery. Exclusion criteria were met if a proper fixation of the cranial double sensor th ...
... All patients suffered from severe cardiac diseases or abnormalities that provided an indication for surgical reconstruction (American Society of Anesthesiologists Classification, ASA IV) and received open-heart surgery. Exclusion criteria were met if a proper fixation of the cranial double sensor th ...
IECEC-2007-Intermediate-Temperature-Fluids-Life-Tests
... (LHPs) in the intermediate temperature range of 450 to 725 K (170 to 450°C), including space nuclear power system radiators, fuel cells, and high temperature electronics cooling. Historically, water has been used in heat pipes at temperatures up to about 425 K (150°C). Recent life tests, updated bel ...
... (LHPs) in the intermediate temperature range of 450 to 725 K (170 to 450°C), including space nuclear power system radiators, fuel cells, and high temperature electronics cooling. Historically, water has been used in heat pipes at temperatures up to about 425 K (150°C). Recent life tests, updated bel ...