A pre-feasibility study to assess the potential of Open Loop Ground
... renewable energy sources. Ground source heat presents such a viable alternative, having been hydrogeologically and economically refined through much research, design and development in the European Union and elsewhere over the past 20 years. This study investigated the hydrogeologic potential of usi ...
... renewable energy sources. Ground source heat presents such a viable alternative, having been hydrogeologically and economically refined through much research, design and development in the European Union and elsewhere over the past 20 years. This study investigated the hydrogeologic potential of usi ...
Fundamentals of Heat Pipes
... (channels through which the liquid travels in the wick) results in a large pumping (capillary) pressure. 2. Permeability - large pore radius results in low liquid pressure drops and low flow resistance. Design choice should be made that balances large capillary pressure with low liquid pressure dr ...
... (channels through which the liquid travels in the wick) results in a large pumping (capillary) pressure. 2. Permeability - large pore radius results in low liquid pressure drops and low flow resistance. Design choice should be made that balances large capillary pressure with low liquid pressure dr ...
C140
... well. For the nucleate pool boiling with distilled water, the authors concluded that tunnels inclined from the surface had higher heat transfer compared to ones normal to the surface. The same was true for the circular reentrant cavities, as well as for the orthogonal intersecting tunnels. As a non- ...
... well. For the nucleate pool boiling with distilled water, the authors concluded that tunnels inclined from the surface had higher heat transfer compared to ones normal to the surface. The same was true for the circular reentrant cavities, as well as for the orthogonal intersecting tunnels. As a non- ...
Heat Resistance, Water Resistance and Bin Storage Stability in
... with the larger particle size hydrotalcite (KW2100) has at least two possible explanations. The first is increased chemical reactivity. The second is an increased tendency to build heat due to the higher compound viscosity. In any event, the scorch safety of the KW2100 stock is equivalent to that of ...
... with the larger particle size hydrotalcite (KW2100) has at least two possible explanations. The first is increased chemical reactivity. The second is an increased tendency to build heat due to the higher compound viscosity. In any event, the scorch safety of the KW2100 stock is equivalent to that of ...
Methods of Increasing Net Work Output of Organic - Purdue e-Pubs
... In heat engine design, the usual objective is to maximize thermal efficiency. However, for heat engines applied to waste heat recovery, an appropriate objective is to maximize power production by converting as much of the waste heat as possible into work. An organic Rankine cycle (ORC) is particular ...
... In heat engine design, the usual objective is to maximize thermal efficiency. However, for heat engines applied to waste heat recovery, an appropriate objective is to maximize power production by converting as much of the waste heat as possible into work. An organic Rankine cycle (ORC) is particular ...
An analysis of a packed bed latent heat thermal energy storage
... external surface of the capsule shell, Rc is the thermal resistance due to conduction through the capsule wall and Rin(t) is the resistance due to the solidified/melt PCM layer inside the capsule. It is a function of time. The external resistance Rext between the capsule wall and the heat transfer flu ...
... external surface of the capsule shell, Rc is the thermal resistance due to conduction through the capsule wall and Rin(t) is the resistance due to the solidified/melt PCM layer inside the capsule. It is a function of time. The external resistance Rext between the capsule wall and the heat transfer flu ...
Cooling&Heating load-rev
... • This discussion also holds good for roofs which have non-air conditioned rooms above them. • For sunlit roofs with false ceiling, the U value may be obtained by assuming the false ceiling to be an air space. However, the CLTD values obtained from the tables may not exactly fit the specific roof. ...
... • This discussion also holds good for roofs which have non-air conditioned rooms above them. • For sunlit roofs with false ceiling, the U value may be obtained by assuming the false ceiling to be an air space. However, the CLTD values obtained from the tables may not exactly fit the specific roof. ...
International Journal of Food Engineering
... microbes or nutrient species would not be transported that easily out of stagnant zone. Therefore, the movement and evolution of the SHZ, is an important aspect for CFD analysis to explore, e.g. the work by Datta and Teixeira (1987, 1988) and that by Kumar et al (1990). Without the presence of natur ...
... microbes or nutrient species would not be transported that easily out of stagnant zone. Therefore, the movement and evolution of the SHZ, is an important aspect for CFD analysis to explore, e.g. the work by Datta and Teixeira (1987, 1988) and that by Kumar et al (1990). Without the presence of natur ...
IEEE Transactions on Magnetics
... Fuzzy logic is a method which can be used to model the experiments, and it has been introduced for the first time in 1965 by Zadeh . Modeling of experiments can be helpful to reduce its costs. By using the models, we can predict results of experiments, which have not performed, or are not possible t ...
... Fuzzy logic is a method which can be used to model the experiments, and it has been introduced for the first time in 1965 by Zadeh . Modeling of experiments can be helpful to reduce its costs. By using the models, we can predict results of experiments, which have not performed, or are not possible t ...
Numerical Analysis of Flow and Heat Transfer Characteristics of
... abundant and non-combustible. As the supercritical CO2 reaches near to its critical point, the physical properties shows extremely rapid variations with a change in temperature and pressure, which makes it as the most important characteristics [1]. The current refrigerants, such as chlorofluorocarbo ...
... abundant and non-combustible. As the supercritical CO2 reaches near to its critical point, the physical properties shows extremely rapid variations with a change in temperature and pressure, which makes it as the most important characteristics [1]. The current refrigerants, such as chlorofluorocarbo ...
Thermal performance of buildings with heavy walls
... Side-by-side test buildings were used to investigate the effect of wall thermal mass on thermal comfort and auxiliary heating energy use. The test buildings were nearly identical apart from the level of thermal mass in their walls. One had lightweight exterior-insulated timber-framed walls and the o ...
... Side-by-side test buildings were used to investigate the effect of wall thermal mass on thermal comfort and auxiliary heating energy use. The test buildings were nearly identical apart from the level of thermal mass in their walls. One had lightweight exterior-insulated timber-framed walls and the o ...
ch1010 heat transfer unit i heat conduction
... Transient heat conduction problems can be divided into periodic heat flow and non periodic heat flow problems. Periodic heat flow problems are those in which the temperature varies on a regular basis, eg., the variation of temperature of the surface of the earth during a twenty four hour period.. I ...
... Transient heat conduction problems can be divided into periodic heat flow and non periodic heat flow problems. Periodic heat flow problems are those in which the temperature varies on a regular basis, eg., the variation of temperature of the surface of the earth during a twenty four hour period.. I ...
154 | Thermodynamics REFERENCES AND SUGGESTED
... 3–14C A perfectly fitting pot and its lid often stick after cooking, and it becomes very difficult to open the lid when the pot cools down. Explain why this happens and what you would do to open the lid. 3–15C It is well known that warm air in a cooler environment rises. Now consider a warm mixture ...
... 3–14C A perfectly fitting pot and its lid often stick after cooking, and it becomes very difficult to open the lid when the pot cools down. Explain why this happens and what you would do to open the lid. 3–15C It is well known that warm air in a cooler environment rises. Now consider a warm mixture ...
11 Infrared heating
... the 1960s in East Germany, Jubitz carried out substantial work on infrared heating and in France Déribéré and Leconte did some work on different applications on infrared irradiation in various industries. During this time Pavlov in the Soviet Union carried out a lot of work on infrared heating an ...
... the 1960s in East Germany, Jubitz carried out substantial work on infrared heating and in France Déribéré and Leconte did some work on different applications on infrared irradiation in various industries. During this time Pavlov in the Soviet Union carried out a lot of work on infrared heating an ...
Heat Loss Calculations And Principles
... Although it is not necessary to understand the physics of heat movement, it is useful to understand it in general terms. Heat transfer is the tendency of heat or energy to move from a warmer space to a cooler space until both spaces are the same temperature. Obviously the greater the difference in t ...
... Although it is not necessary to understand the physics of heat movement, it is useful to understand it in general terms. Heat transfer is the tendency of heat or energy to move from a warmer space to a cooler space until both spaces are the same temperature. Obviously the greater the difference in t ...
CHAPTER 3 - RIT
... Steady Heat Conduction In Plane Walls 3-1C (a) If the lateral surfaces of the rod are insulated, the heat transfer surface area of the cylindrical rod is the bottom or the top surface area of the rod, As D 2 / 4 . (b) If the top and the bottom surfaces of the rod are insulated, the heat transfer ...
... Steady Heat Conduction In Plane Walls 3-1C (a) If the lateral surfaces of the rod are insulated, the heat transfer surface area of the cylindrical rod is the bottom or the top surface area of the rod, As D 2 / 4 . (b) If the top and the bottom surfaces of the rod are insulated, the heat transfer ...
Heat
... heat inside the oven. Air at the bottom of the oven is heated by burning gas or an electric element. The heated air becomes less dense and rises to the top of the oven. The cooler air sinks to the bottom. ...
... heat inside the oven. Air at the bottom of the oven is heated by burning gas or an electric element. The heated air becomes less dense and rises to the top of the oven. The cooler air sinks to the bottom. ...
Case Studies In TRIZ: A Novel Heat Exchanger
... This idea of improving the system by preserving the function while removing components was one of the product evolution trends observed by Altshuller’s team (1) and as such may be found in both the trend known as ‘Trimming’ and in his thinking relating to long term product development strategy and t ...
... This idea of improving the system by preserving the function while removing components was one of the product evolution trends observed by Altshuller’s team (1) and as such may be found in both the trend known as ‘Trimming’ and in his thinking relating to long term product development strategy and t ...
UCON™ Heat Transfer Fluid 50-HB-260-Y3
... to limit exposure. See Health Information. Consumer exposure to products containing UCON Heat Transfer Fluid 50-HB-260-Y3 – Dow does not sell UCON Heat Transfer Fluid 50-HB-260-Y3 for direct consumer use, but it may be used in the treatment or processing of consumer goods. Individual consumer expo ...
... to limit exposure. See Health Information. Consumer exposure to products containing UCON Heat Transfer Fluid 50-HB-260-Y3 – Dow does not sell UCON Heat Transfer Fluid 50-HB-260-Y3 for direct consumer use, but it may be used in the treatment or processing of consumer goods. Individual consumer expo ...
2. Energy Balance of Buildings
... Internal Heat Gain (Qi) The internal heat gain stems from all heat emitting objects within the house. This includes human beings, lamps and other electric appliances like refrigerators, freezers, microwave ovens, fans, televisions and computers. Human beings emit about 100 Watt when awake and 50 Wat ...
... Internal Heat Gain (Qi) The internal heat gain stems from all heat emitting objects within the house. This includes human beings, lamps and other electric appliances like refrigerators, freezers, microwave ovens, fans, televisions and computers. Human beings emit about 100 Watt when awake and 50 Wat ...
Effect of vapor condensation on forced convection heat transfer of
... The energy loss in a boiler is mainly due to the heat released by the exhaust flue gas to the atmosphere. For a conventional boiler, in order to avoid low temperature corrosion, the exit flue gas temperature is usually higher than 150C, sometimes as high as 200C. At such temperatures, the water va ...
... The energy loss in a boiler is mainly due to the heat released by the exhaust flue gas to the atmosphere. For a conventional boiler, in order to avoid low temperature corrosion, the exit flue gas temperature is usually higher than 150C, sometimes as high as 200C. At such temperatures, the water va ...
Refurbishment of a multistorey resi- dential building in st. Petersburg to
... Every year the price of heating in Russian Federation is getting higher and higher. Because of this residents think energy efficiency in their houses to save money. In the nearest future some measures must be done about energy efficiency. One of these measures is refurbishment. During the refurbishm ...
... Every year the price of heating in Russian Federation is getting higher and higher. Because of this residents think energy efficiency in their houses to save money. In the nearest future some measures must be done about energy efficiency. One of these measures is refurbishment. During the refurbishm ...
Influence of coupled pinch point temperature difference and
... This paper presented the analysis on the influence of the pinch point temperature difference (PPTD) and the evaporation temperature on the performance of organic Rankine cycle (ORC) in recovering the low temperature waste heat of the flue gas. Both the net power output and the heat transfer area of th ...
... This paper presented the analysis on the influence of the pinch point temperature difference (PPTD) and the evaporation temperature on the performance of organic Rankine cycle (ORC) in recovering the low temperature waste heat of the flue gas. Both the net power output and the heat transfer area of th ...
Advances in dehydration of foods
... preservation through the partial removal of water content dates back several centuries. This article provides essential information on the fundamental, including psychrometry, and applied engineering aspects of food dehydration with up-to-date available commercial applications. The evolution of dryi ...
... preservation through the partial removal of water content dates back several centuries. This article provides essential information on the fundamental, including psychrometry, and applied engineering aspects of food dehydration with up-to-date available commercial applications. The evolution of dryi ...
Solar water heating
Solar water heating (SWH) is the conversion of sunlight into renewable energy for water heating using a solar thermal collector. Solar water heating systems comprise various technologies that are used worldwide increasingly.In a ""close-coupled"" SWH system the storage tank is horizontally mounted immediately above the solar collectors on the roof. No pumping is required as the hot water naturally rises into the tank through thermosiphon flow. In a ""pump-circulated"" system the storage tank is ground- or floor-mounted and is below the level of the collectors; a circulating pump moves water or heat transfer fluid between the tank and the collectors.SWH systems are designed to deliver hot water for most of the year. However, in winter there sometimes may not be sufficient solar heat gain to deliver sufficient hot water. In this case a gas or electric booster is used to heat the water.