Apparent Latent Heat of Evaporation from Clothing
... a cool environment, the heat balance determined in the standard manner did not add up, producing unrealistically high values for dry heat loss. They suggested that in that condition the evaporative cooling of the human body when calculated from clothed mass loss may be underestimated. Furthermore it ...
... a cool environment, the heat balance determined in the standard manner did not add up, producing unrealistically high values for dry heat loss. They suggested that in that condition the evaporative cooling of the human body when calculated from clothed mass loss may be underestimated. Furthermore it ...
Passivhaus primer: Designer`s guide A guide for the design team
... predictions designers are recommended to achieve a figure of 5% overheating frequency or less (using current day data) and to make provision for additional seasonal shading devices to combat future overheating risks. A number of further strategies are available to reduce overheating risk in Passivha ...
... predictions designers are recommended to achieve a figure of 5% overheating frequency or less (using current day data) and to make provision for additional seasonal shading devices to combat future overheating risks. A number of further strategies are available to reduce overheating risk in Passivha ...
Forced-Circulation Air-Cooling and Air-Heating Coils
... Forced-Circulation Air-Cooling Coil. A heat exchanger, with or without extended surfaces, through which either cold water, cold aqueous ethylene glycol or aqueous propylene glycol solutions, or volatile refrigerant is circulated, for the purpose of total cooling (sensible cooling plus latent cooling ...
... Forced-Circulation Air-Cooling Coil. A heat exchanger, with or without extended surfaces, through which either cold water, cold aqueous ethylene glycol or aqueous propylene glycol solutions, or volatile refrigerant is circulated, for the purpose of total cooling (sensible cooling plus latent cooling ...
Geoneutrinos and the energy budget of the Earth
... To estimate the continental heat flux, we have used a data base containing more than 18,000 heat flux measurements from the continents and their margins. This number includes many additions to the data in the compilation by Pollack et al. (1993). The measurements are very unevenly distributed geograph ...
... To estimate the continental heat flux, we have used a data base containing more than 18,000 heat flux measurements from the continents and their margins. This number includes many additions to the data in the compilation by Pollack et al. (1993). The measurements are very unevenly distributed geograph ...
Thermal properties of rocks at the investigation sites
... Thermal properties (conductivity, specific heat capacity and diffusivity) are necessary parameters needed in planning of a final repository for spent nuclear fuel in deep bedrock. Bedrock temperatures are expected to increase in the immediate vicinity of the repository after the final disposal due t ...
... Thermal properties (conductivity, specific heat capacity and diffusivity) are necessary parameters needed in planning of a final repository for spent nuclear fuel in deep bedrock. Bedrock temperatures are expected to increase in the immediate vicinity of the repository after the final disposal due t ...
Chapter 19 - Clg Coils
... the same form as those for sensible heat exchangers to produce an analogy solution that can be directly solved to yield a simple but accurate representation of coil performance. A description of the processes that occur inside a cooling coil is important to the formulation of the heat and mass trans ...
... the same form as those for sensible heat exchangers to produce an analogy solution that can be directly solved to yield a simple but accurate representation of coil performance. A description of the processes that occur inside a cooling coil is important to the formulation of the heat and mass trans ...
Global distribution of the lithosphere-asthenosphere
... Hamza et al. (2008), this hypothesis, which implies down flow of cold water into hot crust and up flow of hot water from cold crust, contradicts the basic principles of thermal convection in geologic media. In addition, the half- space cooling models assume conductive heat loss from stagnant fluid b ...
... Hamza et al. (2008), this hypothesis, which implies down flow of cold water into hot crust and up flow of hot water from cold crust, contradicts the basic principles of thermal convection in geologic media. In addition, the half- space cooling models assume conductive heat loss from stagnant fluid b ...
EssentialHeatTransfer - University Courses in Electronic Materials
... of heat flow, Q ′, and the temperature difference, ∆T, correspond to the current, Ι, and potential difference, ∆V, respectively. Thermal resistance is the thermal analog of electrical resistance and its thermal circuit representation is shown in Figure 3 (b). It should be remarked that Eq. (3-1) is ...
... of heat flow, Q ′, and the temperature difference, ∆T, correspond to the current, Ι, and potential difference, ∆V, respectively. Thermal resistance is the thermal analog of electrical resistance and its thermal circuit representation is shown in Figure 3 (b). It should be remarked that Eq. (3-1) is ...
Böttcher N, Watanabe N, Kolditz O OpenGeoSys Tutorial Basics of
... community (www.opengeosys.org). These voluntary contributions are highly ...
... community (www.opengeosys.org). These voluntary contributions are highly ...
1 - AgEcon Search
... thermal diffusivity can be evaluated on the basis of fruit temperature response. Because of the finite heat transfer resistance at the surface, the reciprocal of the Biot number is so small it can be neglected. However, acurate evaluation by the conventional method requires not only that specified b ...
... thermal diffusivity can be evaluated on the basis of fruit temperature response. Because of the finite heat transfer resistance at the surface, the reciprocal of the Biot number is so small it can be neglected. However, acurate evaluation by the conventional method requires not only that specified b ...
Overheating in new homes
... and changes in dwelling design, more people may be affected by adverse health outcomes from rising temperatures. Population demographics are also changing globally, and particularly within the UK. As the UK population ages a greater proportion of the population will be exposed to higher indoor tempe ...
... and changes in dwelling design, more people may be affected by adverse health outcomes from rising temperatures. Population demographics are also changing globally, and particularly within the UK. As the UK population ages a greater proportion of the population will be exposed to higher indoor tempe ...
The Use of Conduction Tracers Vs Bare Tracers
... Because of the heat transfer compound, a conduction tracer always has a good thermal connection with the process pipe, resulting in high heat transfer rates and predictable results. The heat transfer coefficient from bare tracing, on the other hand, is entirely dependent upon the quality of the inst ...
... Because of the heat transfer compound, a conduction tracer always has a good thermal connection with the process pipe, resulting in high heat transfer rates and predictable results. The heat transfer coefficient from bare tracing, on the other hand, is entirely dependent upon the quality of the inst ...
Evaporators and Condensers
... the liquid is sent to the evaporator. This reduces the flow through the evaporator. As the liquid evaporates the vapor leaves, usually with a small amount of superheat, and is sent to the compressor. The chilled water is then circulated to coils where it cools and dehumidifies and air stream. Direct ...
... the liquid is sent to the evaporator. This reduces the flow through the evaporator. As the liquid evaporates the vapor leaves, usually with a small amount of superheat, and is sent to the compressor. The chilled water is then circulated to coils where it cools and dehumidifies and air stream. Direct ...
A comparison of laboratory and in situ methods to determine soil
... TRT presented itself at a Central London development site. The TRT was done on a test pile constructed by Concept Consultants Limited, as part of a site investigation to determine the geotechnical and thermal properties of the ground, and hence evaluate the ground source energy potential of the site ...
... TRT presented itself at a Central London development site. The TRT was done on a test pile constructed by Concept Consultants Limited, as part of a site investigation to determine the geotechnical and thermal properties of the ground, and hence evaluate the ground source energy potential of the site ...
ARMATHERM™ Minimize building energy loss and improve
... or prevented by using materials with low thermal conductivities or creating a thermal break in the ...
... or prevented by using materials with low thermal conductivities or creating a thermal break in the ...
Chondrites as samples of differentiated planetesimals - Scripts
... To calculate heat fluxes, the possibility of a core dynamo, and temperature gradients in the unmelted crust, we assume instantaneous accretion and solve the heat conduction in a sphere with initial 26Al evenly distributed (Hevey and Sanders, 2006). The body is heated homogeneously but radiates energy ...
... To calculate heat fluxes, the possibility of a core dynamo, and temperature gradients in the unmelted crust, we assume instantaneous accretion and solve the heat conduction in a sphere with initial 26Al evenly distributed (Hevey and Sanders, 2006). The body is heated homogeneously but radiates energy ...
Chen2011-Entransy_a_novel_theory_in_heat_transfer+
... which means that in a heat dissipating process, minimizing the entransy dissipation leads to the minimum averaged temperature over the entire domain. Based on the results from Eqs. (18), (19) and (23), it can be concluded that the entransy dissipation extremum (EDE) lead to the optimal heat transfer ...
... which means that in a heat dissipating process, minimizing the entransy dissipation leads to the minimum averaged temperature over the entire domain. Based on the results from Eqs. (18), (19) and (23), it can be concluded that the entransy dissipation extremum (EDE) lead to the optimal heat transfer ...
226_che.pdf
... the favor of electronic devices with diverse functions, portability and very high performance, the design of electronic components has being pushed to a new domain that mainly considers higher I/O densities, smaller packaging size, and faster operation frequency. This inevitably increases the consum ...
... the favor of electronic devices with diverse functions, portability and very high performance, the design of electronic components has being pushed to a new domain that mainly considers higher I/O densities, smaller packaging size, and faster operation frequency. This inevitably increases the consum ...
2011 Lynch JT
... calculation, and subsequently verified by thermocouple measurements, to be less than 2% of the input heat flux for both types of endwalls. The radiation losses from the high-emissivity endwalls were estimated to be less than 18% of the input heat flux, assuming blackbody radiation exchange with isot ...
... calculation, and subsequently verified by thermocouple measurements, to be less than 2% of the input heat flux for both types of endwalls. The radiation losses from the high-emissivity endwalls were estimated to be less than 18% of the input heat flux, assuming blackbody radiation exchange with isot ...
Ultra-Thin Flexible Heaters
... It is recommended that you select the heater that is closest to your specification for proof-of-concept testing first before working on a customized solution. When defining the specifications, consider the followings: 1. Dimensions, 2. Voltage and 3. Temperature Rise, then select the most suitable U ...
... It is recommended that you select the heater that is closest to your specification for proof-of-concept testing first before working on a customized solution. When defining the specifications, consider the followings: 1. Dimensions, 2. Voltage and 3. Temperature Rise, then select the most suitable U ...
Apparent latent heat of evaporation from clothing: attenuation and
... wrapped over the skin, which did not affect the mass change of the clothed person but did prevent evaporation from the skin. Havenith and Lotens (22) observed a similar effect when testing semi-permeable vs. impermeable rainwear in a cool environment, showing that total heat loss rates in both garme ...
... wrapped over the skin, which did not affect the mass change of the clothed person but did prevent evaporation from the skin. Havenith and Lotens (22) observed a similar effect when testing semi-permeable vs. impermeable rainwear in a cool environment, showing that total heat loss rates in both garme ...
Project no. FP6-018505 Project Acronym FIRE PARADOX Project
... necessary to study the interaction of wildland fires and buildings. As previously stated, if the gas and solid phases were completely decoupled, ignition times could be predicted without the need to completely resolve the solid phase. This is particularly important in the use of atmospheric wildfire ...
... necessary to study the interaction of wildland fires and buildings. As previously stated, if the gas and solid phases were completely decoupled, ignition times could be predicted without the need to completely resolve the solid phase. This is particularly important in the use of atmospheric wildfire ...
Natural Convection and Entropy Generation in Nanofluid Filled
... Natarajan et al. [10] numerically studied the natural convection in a trapezoidal cavity with uniform and non-uniform heating of bottom wall for a range of Rayleigh and Prandtl numbers using finite element method. They showed that non-uniform heating of the bottom wall produces greater heat transfer ...
... Natarajan et al. [10] numerically studied the natural convection in a trapezoidal cavity with uniform and non-uniform heating of bottom wall for a range of Rayleigh and Prandtl numbers using finite element method. They showed that non-uniform heating of the bottom wall produces greater heat transfer ...
uncorrected page proofs
... Heat can be gained by the human body from the external environment through radiation, conduction and convection. This heat gain occurs when the external (ambient) temperature is higher than the body temperature. Heat can be lost from the human body to the external environment through the processes o ...
... Heat can be gained by the human body from the external environment through radiation, conduction and convection. This heat gain occurs when the external (ambient) temperature is higher than the body temperature. Heat can be lost from the human body to the external environment through the processes o ...
BHTC2011_KarlBrown et al - TARA
... For the time averaged data, the local heat transfer coefficients are calculated using the method of infrared thermography. A thin stainless steel foil, with one side coated in a layer of matt black paint, is ohmically heated. This approach creates a uniform wall flux boundary condition. The foil is ...
... For the time averaged data, the local heat transfer coefficients are calculated using the method of infrared thermography. A thin stainless steel foil, with one side coated in a layer of matt black paint, is ohmically heated. This approach creates a uniform wall flux boundary condition. The foil is ...
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.