AIR CONDITIONING
... Refrigerant is a specially-formulated chemical that passes through the AC system to exchange heat from inside the cabin to outside the vehicle. Refrigerant is a liquid that absorbs heat easily at low temperatures and turns easily into vapour. ...
... Refrigerant is a specially-formulated chemical that passes through the AC system to exchange heat from inside the cabin to outside the vehicle. Refrigerant is a liquid that absorbs heat easily at low temperatures and turns easily into vapour. ...
Thermal fluid flow through porous media containing obstacles
... porous media has attracted the attention of many engineers and scientific researchers because of its wide applications. The porous medium are usually used for enhancing heat transfer in industry such as fuel cells, nuclear Reactors cooling, heat pipes, packed bed reactors and heat exchangers. Kavian ...
... porous media has attracted the attention of many engineers and scientific researchers because of its wide applications. The porous medium are usually used for enhancing heat transfer in industry such as fuel cells, nuclear Reactors cooling, heat pipes, packed bed reactors and heat exchangers. Kavian ...
finite volume analysis of convective heat transfer augmentation from
... perforation under natural convection compared to the equivalent solid (none perforated) fin using finite volume method. The parameters considered were geometrical dimensions and thermal properties of the fin and that of the perforations. This study shows that the heat dissipation from the perforated ...
... perforation under natural convection compared to the equivalent solid (none perforated) fin using finite volume method. The parameters considered were geometrical dimensions and thermal properties of the fin and that of the perforations. This study shows that the heat dissipation from the perforated ...
Investigation of Link between Air Exchange Rate and Operational
... curves fit well with the simulation results in all cases. Using these curves, the naturally ventilated buildings can be categorized as follows: Category I (e.g., Fig 5a): In this category, buildings have capabilities to significantly increase the percentage of year that the indoor thermal environmen ...
... curves fit well with the simulation results in all cases. Using these curves, the naturally ventilated buildings can be categorized as follows: Category I (e.g., Fig 5a): In this category, buildings have capabilities to significantly increase the percentage of year that the indoor thermal environmen ...
TechTopics No. 74 - Heat generation estimation for type
... shut the heaters off at a temperature of approximately 110 ºF. Therefore, in an air-conditioned room, the heaters would be energized continuously. 2. Heat generated by current transformers is ignored as it is usually insignificant and varies according to the CT ratio as well as the loading. 3. The ...
... shut the heaters off at a temperature of approximately 110 ºF. Therefore, in an air-conditioned room, the heaters would be energized continuously. 2. Heat generated by current transformers is ignored as it is usually insignificant and varies according to the CT ratio as well as the loading. 3. The ...
Entransy Dissipation Analysis for Optimal Design of Heat Exchangers
... The entransy expression of the first law is that the entransy of any thermodynamic system is in balance, and that of the second law is that the entransy flow will never be transported from a low temperature body to a high temperature body automatically and the entransy dissipation always exists [4]. ...
... The entransy expression of the first law is that the entransy of any thermodynamic system is in balance, and that of the second law is that the entransy flow will never be transported from a low temperature body to a high temperature body automatically and the entransy dissipation always exists [4]. ...
- UM Research Repository
... The centrifugal microfluidic compact disc (CD) platform allows for miniaturization and full automation of complex diagnostic processes. The core component of the platform is the plastic CD which is low cost and portable, making it suitable for use as a point-of-care diagnostic tool [1-3]. The CD con ...
... The centrifugal microfluidic compact disc (CD) platform allows for miniaturization and full automation of complex diagnostic processes. The core component of the platform is the plastic CD which is low cost and portable, making it suitable for use as a point-of-care diagnostic tool [1-3]. The CD con ...
Dynamic insulation
Dynamic insulation is a form of insulation where cool outside air flowing through the thermal insulation in the envelope of a building will pick up heat from the insulation fibres. Buildings can be designed to exploit this to reduce the transmission heat loss (U-value) and to provide pre-warmed, draft free air to interior spaces. This is known as dynamic insulation since the U-value is no longer constant for a given wall or roof construction but varies with the speed of the air flowing through the insulation (climate adaptive building shell). Dynamic insulation is different from breathing walls. The positive aspects of dynamic insulation need to be weighed against the more conventional approach to building design which is to create an airtight envelope and provide appropriate ventilation using either natural ventilation or mechanical ventilation with heat recovery. The air-tight approach to building envelope design, unlike dynamic insulation, results in a building envelope that provides a consistent performance in terms of heat loss and risk of interstitial condensation that is independent of wind speed and direction. Under certain wind conditions a dynamically insulated building can have a higher heat transmission loss than an air-tight building with the same thickness of insulation.