
Protection against cold in prehospital care: thermal insulation
... secured with adhesive tape. All materials were secured with two straps, one around the chest and the other around the upper legs. After the application of the insulation ensemble, fans were either kept turned off for low wind conditions or adjusted to the desired air velocities for moderate and high ...
... secured with adhesive tape. All materials were secured with two straps, one around the chest and the other around the upper legs. After the application of the insulation ensemble, fans were either kept turned off for low wind conditions or adjusted to the desired air velocities for moderate and high ...
Module 6 How to implement thermal insulation to HVAC Services
... Hot water tanks are another common opportunity. Although the hot water tank will almost certainly be insulated, inspection hatches are often exposed, again due to insulation being removed at some time in the past during maintenance and was not reinstated or replaced. It is recommended that new jacke ...
... Hot water tanks are another common opportunity. Although the hot water tank will almost certainly be insulated, inspection hatches are often exposed, again due to insulation being removed at some time in the past during maintenance and was not reinstated or replaced. It is recommended that new jacke ...
IMPACT OF AIR RETURN STRATEGY ON BUILDING ENERGY
... Many buildings are conditioned and ventilated by centralized air distribution systems. In current commercial construction practices, supply air systems are almost always ducted, while return air systems utilize ducts or unducted ceiling plenums and architectural shafts. Hydeman et al. (2003), in a v ...
... Many buildings are conditioned and ventilated by centralized air distribution systems. In current commercial construction practices, supply air systems are almost always ducted, while return air systems utilize ducts or unducted ceiling plenums and architectural shafts. Hydeman et al. (2003), in a v ...
7. EnergyPro reports and reporting energy data
... About the EnergyPro Handbook This handbook is designed to be a resource for participating contractors in the Clean Energy Sacramento program who are modeling commercial project upgrades using EnergyPro. This guide will present the basics of completing an energy simulation model in EnergyPro, communi ...
... About the EnergyPro Handbook This handbook is designed to be a resource for participating contractors in the Clean Energy Sacramento program who are modeling commercial project upgrades using EnergyPro. This guide will present the basics of completing an energy simulation model in EnergyPro, communi ...
Insulation – Improving the Thermal Envelope - Strunk
... Air Sealing: Air sealing is important, not only because drafts are uncomfortable, but because air leaks carry both moisture and energy, usually in the direction you do not want. For example, air leaks can carry hot, humid outdoor air into your house in the summer, or can carry warm moist air from a ...
... Air Sealing: Air sealing is important, not only because drafts are uncomfortable, but because air leaks carry both moisture and energy, usually in the direction you do not want. For example, air leaks can carry hot, humid outdoor air into your house in the summer, or can carry warm moist air from a ...
Experimental study of Collector heat removal factor and
... into the atmosphere. Thermocouples were used to measure absorber and air temperature at different location in the solar air heaters as flow progresses. The output of the thermocouple fed to digital micro voltmeter displays directly the temperature values. Mass flow rate of air through these collecto ...
... into the atmosphere. Thermocouples were used to measure absorber and air temperature at different location in the solar air heaters as flow progresses. The output of the thermocouple fed to digital micro voltmeter displays directly the temperature values. Mass flow rate of air through these collecto ...
MECHANICAL AND ELECTRICAL EQUIPMENTS
... - energy conservation have reduced the air circulation rate in many central air handling systems moving less air reduces the energy used by fans. One result can be low distribution efficiency, which causes poorly mixed air within the occupied spaces. With local (individual space) air filtering equip ...
... - energy conservation have reduced the air circulation rate in many central air handling systems moving less air reduces the energy used by fans. One result can be low distribution efficiency, which causes poorly mixed air within the occupied spaces. With local (individual space) air filtering equip ...
Near-wall Electrically Induced Vortices for Quasi
... field. Friction from side wall boundary layers parallel to magnetic field, known as Hartmann layer, acts to dampen turbulence. This damping works against the desire to maximise turbulent mixing and convective heat transfer. For a review of liquid-metal flows in magnetic confinement fusion reactor bl ...
... field. Friction from side wall boundary layers parallel to magnetic field, known as Hartmann layer, acts to dampen turbulence. This damping works against the desire to maximise turbulent mixing and convective heat transfer. For a review of liquid-metal flows in magnetic confinement fusion reactor bl ...
Convective heat transfer for fluids passing through
... over 90%. Additionally, the sizes and the number of ‘windows’ between individual cells are sufficiently high to enable a relatively unobstructed flow of fluids through the cellular space. That reduces the loss of pressure and hence the energy required to pass the fluid through that structure. In cas ...
... over 90%. Additionally, the sizes and the number of ‘windows’ between individual cells are sufficiently high to enable a relatively unobstructed flow of fluids through the cellular space. That reduces the loss of pressure and hence the energy required to pass the fluid through that structure. In cas ...
FSK Shield
... FSK Shield™ is an economy grade single-sided foil facing that is comprised of 0.0003" aluminum foil bonded to 30 lb. natural kraft paper with a flame retardant adhesive and is reinforced with tri-directional fiberglass scrim. FSK Shield™ is intended for use as an attic, roof, or wall radiant barrier ...
... FSK Shield™ is an economy grade single-sided foil facing that is comprised of 0.0003" aluminum foil bonded to 30 lb. natural kraft paper with a flame retardant adhesive and is reinforced with tri-directional fiberglass scrim. FSK Shield™ is intended for use as an attic, roof, or wall radiant barrier ...
A Numerical Investigation of Cuo-Water Nanofluid in Different
... Velocity profile at the outlet of duct for Re=100 & triangle (1:1:1) cross-section duct Like other plots, the convective heat transfer increases with particle volume fraction. But the enhancement in heat transfer is less than square; while the enhancement about 28% observed in square, the enhancemen ...
... Velocity profile at the outlet of duct for Re=100 & triangle (1:1:1) cross-section duct Like other plots, the convective heat transfer increases with particle volume fraction. But the enhancement in heat transfer is less than square; while the enhancement about 28% observed in square, the enhancemen ...
Experience on Commissioning of Heating/Cooling System and
... materials from the factory exactly. Whether the equipment is accepted as merchandize for the house maker is determined following JIS or other similar performance testing methods. The commissioning in situ of the equipment ...
... materials from the factory exactly. Whether the equipment is accepted as merchandize for the house maker is determined following JIS or other similar performance testing methods. The commissioning in situ of the equipment ...
FSK Shield - Fi-Foil
... FSK Shield™ is an economy grade single-sided foil facing that is comprised of 0.0003" aluminum foil bonded to 30 lb. natural kraft paper with a flame retardant adhesive and is reinforced with tri-directional fiberglass scrim. FSK Shield™ is intended for use as an attic, roof, or wall radiant barrier ...
... FSK Shield™ is an economy grade single-sided foil facing that is comprised of 0.0003" aluminum foil bonded to 30 lb. natural kraft paper with a flame retardant adhesive and is reinforced with tri-directional fiberglass scrim. FSK Shield™ is intended for use as an attic, roof, or wall radiant barrier ...
Radiant Barrier Training 7-2013 - Fi-Foil
... Heat is conducted through roofing materials and reradiated to the mass insulation and ceiling below. Attic air temperatures climb to superheated levels…typically 140 degrees Fahrenheit in the summer. Radiant heat transfers into air conditioning ducts increasing energy costs. Attic structure and cont ...
... Heat is conducted through roofing materials and reradiated to the mass insulation and ceiling below. Attic air temperatures climb to superheated levels…typically 140 degrees Fahrenheit in the summer. Radiant heat transfers into air conditioning ducts increasing energy costs. Attic structure and cont ...
example report - DRW – DR Wastchak
... unwanted fumes and particulate into the conditioned interior of the house. Especially when combined with pressure imbalances, high building leakage is a main contributor to poor performance and can be a good opportunity for improvement. Extremely low building leakage in absence of designed mechanica ...
... unwanted fumes and particulate into the conditioned interior of the house. Especially when combined with pressure imbalances, high building leakage is a main contributor to poor performance and can be a good opportunity for improvement. Extremely low building leakage in absence of designed mechanica ...
Heat Transfer and Friction Characteristics in Turbulent
... decrease appreciably as the acute apex angle θ is decreased. The rate of decrease of f0/fp is smaller than that of j0/jp, therefore (j0/f0)/(jp/fp) also decreases with θ. The square duct should give the best performance among the present five rhombic ducts in terms of friction and heat transfer prop ...
... decrease appreciably as the acute apex angle θ is decreased. The rate of decrease of f0/fp is smaller than that of j0/jp, therefore (j0/f0)/(jp/fp) also decreases with θ. The square duct should give the best performance among the present five rhombic ducts in terms of friction and heat transfer prop ...
... (assume constant specific heat). f) Find the net work produced by the air during one cycle. An engine working with 0.1 kg of air follows the Camot cycle. The high temperature reservoir is at 940 K, and at the beginning of isothermal expansion at this temperature the air pressure is 8.4 MPa. The heat ...
Duct (flow)

Ducts are used in heating, ventilation, and air conditioning (HVAC) to deliver and remove air. The needed airflows include, for example, supply air, return air, and exhaust air.Ducts commonly also deliver ventilation air as part of the supply air. As such, air ducts are one method of ensuring acceptable indoor air quality as well as thermal comfort.A duct system is also called ductwork. Planning (laying out), sizing, optimizing, detailing, and finding the pressure losses through a duct system is called duct design.