Radiant Cooling: Thermally Active Floors
... For hydronic transport to be successful, the coupling between the transport medium, and the space must be maximized. To maximize this coupling, radiant conditioning systems often use the most extensive surfaces in the building, the floor and the ceiling. These surfaces have the advantage of convecti ...
... For hydronic transport to be successful, the coupling between the transport medium, and the space must be maximized. To maximize this coupling, radiant conditioning systems often use the most extensive surfaces in the building, the floor and the ceiling. These surfaces have the advantage of convecti ...
Thermoregulation
... boundary layer of a large rock, while Sauromalus moves about freely. – At mid-day, Uta climbs a shrub and uses convection to cool, while Sauromalus avoids radiative heat exchange and finds its rock pile retreat. ...
... boundary layer of a large rock, while Sauromalus moves about freely. – At mid-day, Uta climbs a shrub and uses convection to cool, while Sauromalus avoids radiative heat exchange and finds its rock pile retreat. ...
test and comparison of hot water stores for solar combisystems
... determine e. g. the volume of the auxiliary heated part or the buffer volume. However, these parameters cannot be compared or assessed in a direct way. Figure 2 shows the domestic hot water draw-off profiles of the four combistores as well as the temperatures measured at the individual positions of ...
... determine e. g. the volume of the auxiliary heated part or the buffer volume. However, these parameters cannot be compared or assessed in a direct way. Figure 2 shows the domestic hot water draw-off profiles of the four combistores as well as the temperatures measured at the individual positions of ...
Solar water heaters proposed for the British University in
... the collector to be able to absorb radiation with minimum reflection as the radiation in perpendicular to the tube at all angle, this allows absorption all the time through the day with the same efficiency throughout the whole year. In addition to that, the plates are well insulated from the back an ...
... the collector to be able to absorb radiation with minimum reflection as the radiation in perpendicular to the tube at all angle, this allows absorption all the time through the day with the same efficiency throughout the whole year. In addition to that, the plates are well insulated from the back an ...
printer-friendly sample test questions
... Explain how heat is being transferred in the stove-pot-water system. A. Heat is being transferred from the stove to the pot through convection and from the pot to the water through conduction. B. Heat is being transferred from the stove to the pot through conduction and from the pot to the water thr ...
... Explain how heat is being transferred in the stove-pot-water system. A. Heat is being transferred from the stove to the pot through convection and from the pot to the water through conduction. B. Heat is being transferred from the stove to the pot through conduction and from the pot to the water thr ...
Aalborg Universitet Heiselberg, Per Kvols
... Direct evaporative cooling of buildings can be achieved by packaged evaporative cooling units. This can be considered as an active system. The other solution is that evaporative system can be an integrated part of the building itself and these systems are defined as passive systems. Passive systems ...
... Direct evaporative cooling of buildings can be achieved by packaged evaporative cooling units. This can be considered as an active system. The other solution is that evaporative system can be an integrated part of the building itself and these systems are defined as passive systems. Passive systems ...
the mars hopper: an impulse driven, long range
... Research in thermoelectric materials suggests that significant improvements in efficiency are possible through the development of high performance materials including e.g. oxide thermoelectrics, rareearth intermetallics, engineered crystal lattices and skutterudite-based materials which have thermal ...
... Research in thermoelectric materials suggests that significant improvements in efficiency are possible through the development of high performance materials including e.g. oxide thermoelectrics, rareearth intermetallics, engineered crystal lattices and skutterudite-based materials which have thermal ...
Specific Heat of Copper
... A 25kg cylinder of copper is heated from room temerature. The same 374kJ of thermal energy were used during the heating process but this time the copper’s temperature rose from room temperature to only 58.4ºC. Calculate the specific heat capacity of this piece of copper. Answer: 390J Solving for ...
... A 25kg cylinder of copper is heated from room temerature. The same 374kJ of thermal energy were used during the heating process but this time the copper’s temperature rose from room temperature to only 58.4ºC. Calculate the specific heat capacity of this piece of copper. Answer: 390J Solving for ...
Thermal Applications
... Where possible, applications access common data so that it is never necessary to re-enter values in order to carry out different types of analysis. The efficiency of data input is further enhanced by the use of objects called Templates. Templates bring together groups of thermal input variables so t ...
... Where possible, applications access common data so that it is never necessary to re-enter values in order to carry out different types of analysis. The efficiency of data input is further enhanced by the use of objects called Templates. Templates bring together groups of thermal input variables so t ...
Analysis of a Flat-plate Solar Collector
... systems, and control systems. The major component unique to active systems is the solar collector. This device absorbs the incoming solar radiation, converting it into heat at the absorbing surface, and transfers this heat to a fluid (usually air or water) flowing through the collector. The warmed f ...
... systems, and control systems. The major component unique to active systems is the solar collector. This device absorbs the incoming solar radiation, converting it into heat at the absorbing surface, and transfers this heat to a fluid (usually air or water) flowing through the collector. The warmed f ...
A new Passive House Design Tool and its Application in Cold
... first assumption, but it might be more realistic to create specific time schedules. Basically, the main difference of both models is the level of detail. A much more detailed simulation needs more time to compute. The monthly method is fast. An ordinary PC can compute all results in real-time. The d ...
... first assumption, but it might be more realistic to create specific time schedules. Basically, the main difference of both models is the level of detail. A much more detailed simulation needs more time to compute. The monthly method is fast. An ordinary PC can compute all results in real-time. The d ...
5.1 The Nature of Heat
... Water Can Take the Heat • Heat absorption: the rate at which materials absorb heat • Specific heat capacity: measures a substance’s ability to absorb or lose heat – Water has a high specific heat so it can take on a lot of heat energy without increasing it’s temperature too much ...
... Water Can Take the Heat • Heat absorption: the rate at which materials absorb heat • Specific heat capacity: measures a substance’s ability to absorb or lose heat – Water has a high specific heat so it can take on a lot of heat energy without increasing it’s temperature too much ...
Thermal Applications Category User Guide
... Where possible, applications access common data so that it is never necessary to re-enter values in order to carry out different types of analysis. The efficiency of data input is further enhanced by the use of objects called Templates. Templates bring together groups of thermal input variables so t ...
... Where possible, applications access common data so that it is never necessary to re-enter values in order to carry out different types of analysis. The efficiency of data input is further enhanced by the use of objects called Templates. Templates bring together groups of thermal input variables so t ...
FDR_5_2_07_840am
... Design Strategy Not yet complete. Needs: – Describe all of the trade studies you are considering in this project – Describe the trade study conclusions and any other design decisions that you have already made – Discuss the unfinished trade studies and what effect they will have on your design – Sum ...
... Design Strategy Not yet complete. Needs: – Describe all of the trade studies you are considering in this project – Describe the trade study conclusions and any other design decisions that you have already made – Discuss the unfinished trade studies and what effect they will have on your design – Sum ...
Summer Heat Protection
... Phase shifting is the time span between the highest external temperature and the highest internal temperature. In the above example this is the 12 hours between 14:00 hrs and 02:00 hrs. The aim of summer heat protection is to delay the heat transfer through the fabric of the building so that the hig ...
... Phase shifting is the time span between the highest external temperature and the highest internal temperature. In the above example this is the 12 hours between 14:00 hrs and 02:00 hrs. The aim of summer heat protection is to delay the heat transfer through the fabric of the building so that the hig ...
Heat and its Transfer Study Guide
... It is a sunny day outside. The sun’s rays warm the Earth. The sun is a star made up of hot, glowing gases. It is the main source of heat and light on Earth. Energy from the sun is called solar energy and is transmitted by waves of radiation. Heat is a kind of energy that moves from one place to anot ...
... It is a sunny day outside. The sun’s rays warm the Earth. The sun is a star made up of hot, glowing gases. It is the main source of heat and light on Earth. Energy from the sun is called solar energy and is transmitted by waves of radiation. Heat is a kind of energy that moves from one place to anot ...
Thermodynamics study the thermal energy (often called the internal
... A thermodynamic system is defined as a collection of many particles such as atoms and/or molecules. A simple thermodynamic system is a system that is macroscopic, homogeneous, isotropic, uncharged, chemically inert, and experiences no change in its total mechanical energy. The system is sufficiently ...
... A thermodynamic system is defined as a collection of many particles such as atoms and/or molecules. A simple thermodynamic system is a system that is macroscopic, homogeneous, isotropic, uncharged, chemically inert, and experiences no change in its total mechanical energy. The system is sufficiently ...
Heat Transfer
... Example 19-4: Unknown specific heat determined by calorimetry. An engineer wishes to determine the specific heat of a new metal alloy. A 0.150-kg sample of the alloy is heated to 540°C. It is then quickly placed in 0.400 kg of water at 10.0°C, which is contained in a 0.200-kg aluminum calorimeter c ...
... Example 19-4: Unknown specific heat determined by calorimetry. An engineer wishes to determine the specific heat of a new metal alloy. A 0.150-kg sample of the alloy is heated to 540°C. It is then quickly placed in 0.400 kg of water at 10.0°C, which is contained in a 0.200-kg aluminum calorimeter c ...
Literature review summary
... relation between wind speed and direction, and the performance of UTSC’s. Results showed that maximum performance (collector efficiency) does not occur at zero wind speed, for unknown reasons. Heat exchange effectiveness and pressure drop for air flow through perforated plates with and without cross ...
... relation between wind speed and direction, and the performance of UTSC’s. Results showed that maximum performance (collector efficiency) does not occur at zero wind speed, for unknown reasons. Heat exchange effectiveness and pressure drop for air flow through perforated plates with and without cross ...
Thermal Energy Storage Capacity of some Phase changing
... Introduction Thermal Energy and its Storage The demand and supply gap for energy sources is widening day by day. Moreover, the fact that the energy can neither be created and nor destroyed has resulted in focussing of scientific research in the direction of storing the different forms of energy usin ...
... Introduction Thermal Energy and its Storage The demand and supply gap for energy sources is widening day by day. Moreover, the fact that the energy can neither be created and nor destroyed has resulted in focussing of scientific research in the direction of storing the different forms of energy usin ...
evaluating fenestration products for zero
... tools are used by manufacturers as part of the design process so that they understand what changes to products are necessary to meet certain target performance factors (U, SHGC, VT). These tools and the associated rating system have been effective in increasing the use of low-e coatings and gas fill ...
... tools are used by manufacturers as part of the design process so that they understand what changes to products are necessary to meet certain target performance factors (U, SHGC, VT). These tools and the associated rating system have been effective in increasing the use of low-e coatings and gas fill ...
Power point about heat transfer
... • Heat: Heat is energy! Heat is the energy transferred (passed) from a hotter object to a cooler object. • Heat Transfer: The transfer (passing) of heat from one object to another. Heat always moves in the direction from: higher temperatures to lower temperatures. warm to cool • Always! Always! Alwa ...
... • Heat: Heat is energy! Heat is the energy transferred (passed) from a hotter object to a cooler object. • Heat Transfer: The transfer (passing) of heat from one object to another. Heat always moves in the direction from: higher temperatures to lower temperatures. warm to cool • Always! Always! Alwa ...
Passive solar building design
In passive solar building design, windows, walls, and floors are made to collect, store, and distribute solar energy in the form of heat in the winter and reject solar heat in the summer. This is called passive solar design because, unlike active solar heating systems, it does not involve the use of mechanical and electrical devices.The key to design a passive solar building is to best take advantage of the local climate performing an accurate site analysis. Elements to be considered include window placement and size, and glazing type, thermal insulation, thermal mass, and shading. Passive solar design techniques can be applied most easily to new buildings, but existing buildings can be adapted or ""retrofitted"".