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57 Cards in this Set
- Front
- Back
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Sensible heat |
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Latent heat |
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Specific heat |
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Short and long wave length |
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Resistance R-value |
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Emissivity |
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How many BTUs for 1lb of water from freezing to boiling |
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Heating load calculation (3factors) |
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Infiltration formula |
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Cooling load calculation (5factors) |
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The psychrometric chart |
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Enthalpy |
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Wet bulb temp |
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Saltshaker |
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Thermosiphoning |
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Open loop closed loop |
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Desiccant system |
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Absorption refrigeration |
Lithium bromide (aka desiccant) |
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DC / AC |
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Synchronous inverter |
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Savonius |
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Darvieus |
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Leading turbine / trailing |
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Refrigeration cycle |
1 Compressor: HP HT vapor 2 Condenser: rejects heat (warm air outcome) w outside air (liquid is subcool) 3 filler drier: removes moisture 4 valve /metering: LP LT liquid 80-20% gas 5 evaporator (absorbs heat, cool air out) - LP LT vapor
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Plant types |
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Refrigeration liquid |
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Evaporative chiller |
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Blowdown |
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Heat pump |
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Hydroflurocarbons |
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Distribution types |
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Hydronic systems |
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Deck temperature |
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Forced air systems |
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Fan coil system |
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Heat sink |
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Induction |
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Centrifugal fan |
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Filter types (3 types) |
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Plant sizing (area) |
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Heating load / cooling load |
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Sizing a duct |
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Duct air velocities |
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Static head |
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Current |
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Resistance |
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Ohm's law |
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DC formula |
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AC formula power factor |
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3-phase circuit formula |
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Solenoid |
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external combustion air |
energy-efficient designs, the air used for combustion is sometimes brought in directly from outside, instead of wasting the warmed and humidified building air. |
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Lowboy |
If the furnace is reduced to approximately five feet in height so that it can fit in an overgrown closet or even an attic it is called a lowboy. |
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Typical refrigerant |
Refrigerant 410A (which is actually a family of several chlorofluorocarbon or CFC gases), circulated in a closed loop |
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condenser |
The pump increases the pressure of the fluid, forcing the Refrigerant 410A to condense, |
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Evaporator |
ABSORBING latent heat of evaporation |
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Heat pump system |
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