Powerpoint
... and formed a solid crust over molten interior • If solid crust floats (e.g. plagioclase on the Moon) then it will insulate the interior, which will cool slowly (~ Myrs) • If the crust sinks, then cooling is rapid (~ kyrs) • What happens once the magma ocean has solidified? ...
... and formed a solid crust over molten interior • If solid crust floats (e.g. plagioclase on the Moon) then it will insulate the interior, which will cool slowly (~ Myrs) • If the crust sinks, then cooling is rapid (~ kyrs) • What happens once the magma ocean has solidified? ...
printer-friendly sample test questions
... 2. The idea that matter is made up of small particles that are in constant motion is called the A. Law of Conservation of Matter B. Kinetic Theory of Matter C. Thermal Energy D. Transfer of Heat 3. The total energy of the particles in an object is often called A. temperature. B. thermal energy. C. k ...
... 2. The idea that matter is made up of small particles that are in constant motion is called the A. Law of Conservation of Matter B. Kinetic Theory of Matter C. Thermal Energy D. Transfer of Heat 3. The total energy of the particles in an object is often called A. temperature. B. thermal energy. C. k ...
The Specific Heat Capacity of Metals
... it to boil for about five minutes so that the metal reaches the temperature of the boiling water. Take the temperature of the water. Assume this is also the temperature of the metal. Record this temperature in the table. 3. Add 100 g of cold water to an insulated cup. Quickly remove the metal sample ...
... it to boil for about five minutes so that the metal reaches the temperature of the boiling water. Take the temperature of the water. Assume this is also the temperature of the metal. Record this temperature in the table. 3. Add 100 g of cold water to an insulated cup. Quickly remove the metal sample ...
Corporate Profile
... • Isolated system – no exchange of matter or energy with the surroundings • Closed system – exchange of energy, but no exchange of matter with the surroundings • Open system – exchange of both energy and matter ...
... • Isolated system – no exchange of matter or energy with the surroundings • Closed system – exchange of energy, but no exchange of matter with the surroundings • Open system – exchange of both energy and matter ...
Unit 3 Homework
... thermal conductivity and observe the temperature dependence at low temperatures. Assume that the velocity and mean free path are independent of temperature and carrier energy. 4. Specific heat of a diatomic chain Consider the diatomic chain studied in week 1 with atomic masses m1 , m2 (m2 > m1 ) and ...
... thermal conductivity and observe the temperature dependence at low temperatures. Assume that the velocity and mean free path are independent of temperature and carrier energy. 4. Specific heat of a diatomic chain Consider the diatomic chain studied in week 1 with atomic masses m1 , m2 (m2 > m1 ) and ...
Cooling guidelines PL
... 2. Utilisation in a simple way of the natural energy resources of the ground at small depth for cooling and heating of the ventilation air stream 3. Use of e ground heat exchanger is purely a way to use renewable energy resource. An investor who makes a decision to construct such equipment may apply ...
... 2. Utilisation in a simple way of the natural energy resources of the ground at small depth for cooling and heating of the ventilation air stream 3. Use of e ground heat exchanger is purely a way to use renewable energy resource. An investor who makes a decision to construct such equipment may apply ...
RECYCLE theRmal Energy reCoverY eleCtricaL systEms
... along with optimised electrical power networks support such increase in electrical power demand. There are two main ways of electricity generation through which waste heat are converted to electrical energy, namely dynamic conversion and static conversion. In the process of dynamic conversion, mecha ...
... along with optimised electrical power networks support such increase in electrical power demand. There are two main ways of electricity generation through which waste heat are converted to electrical energy, namely dynamic conversion and static conversion. In the process of dynamic conversion, mecha ...
(C, ° F ) u = internal energy (J/kg, Btu
... M = molecular weight (g/mol, lbm/mol) P = pressure (Pa, psi) V = volume (m3, ft3) v = specific volume (m3/kg, ft3/lbm) T = absolute temperature (K, °R) t = temperature (C, °F) u = internal energy (J/kg, Btu, lbm) h = enthalpy (J/kg, Btu/lbm) ...
... M = molecular weight (g/mol, lbm/mol) P = pressure (Pa, psi) V = volume (m3, ft3) v = specific volume (m3/kg, ft3/lbm) T = absolute temperature (K, °R) t = temperature (C, °F) u = internal energy (J/kg, Btu, lbm) h = enthalpy (J/kg, Btu/lbm) ...
Weather Dynamics
... An example of Relative Humidity Why is the air so dry in homes in the winter? The temperature outside is say -12oC and the relative humidity is 75%. That air is pulled into your house and heated to 20oC. What is the RH now?? (using table 13.4) Remember that cold air can hold less moisture that warm ...
... An example of Relative Humidity Why is the air so dry in homes in the winter? The temperature outside is say -12oC and the relative humidity is 75%. That air is pulled into your house and heated to 20oC. What is the RH now?? (using table 13.4) Remember that cold air can hold less moisture that warm ...
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.