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  2. Glossary of HVAC terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_HVAC_terms

    Glossary of HVAC terms. HVAC (heating, ventilation, and air conditioning) is a major sub discipline of mechanical engineering. The goal of HVAC design is to balance indoor environmental comfort with other factors such as installation cost, ease of maintenance, and energy efficiency. The discipline of HVAC includes a large number of specialized ...

  3. Heat pump and refrigeration cycle - Wikipedia

    en.wikipedia.org/wiki/Heat_pump_and...

    e. Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. A heat pump is a mechanical system that transmits heat from one location (the "source") at a certain temperature to another location (the "sink" or "heat sink") at a higher temperature. [1]

  4. Heating, ventilation, and air conditioning - Wikipedia

    en.wikipedia.org/wiki/Heating,_ventilation,_and...

    In the lower middle is the capacitor. Heating, ventilation, and air conditioning (HVAC) is the use of various technologies to control the temperature, humidity, and purity of the air in an enclosed space. Its goal is to provide thermal comfort and acceptable indoor air quality.

  5. Northwest Airlines Flight 188 - Wikipedia

    en.wikipedia.org/wiki/Northwest_Airlines_Flight_188

    During the investigation, Cheney and Cole told National Transportation Safety Board investigators that they were going over schedules using their laptop computers—a serious breach of piloting fundamentals, as well as a violation of Delta Air Lines policy (Delta had recently merged with Northwest).

  6. Northwest Airlines - Wikipedia

    en.wikipedia.org/wiki/Northwest_Airlines

    Website. www.nwa.com. Northwest Airlines (often abbreviated as NWA) was a major airline in the United States that operated from 1926 until it merged with Delta Air Lines in 2010. [ 1 ] The merger made Delta the largest airline in the world until the American Airlines–US Airways merger in 2013. [ 2 ][ 3 ] Northwest was headquartered in Eagan ...

  7. Here's What Delta Air Lines' Big News Means to Investors - AOL

    www.aol.com/heres-delta-air-lines-big-111000451.html

    Data source: Delta Air Lines presentations. YoY is year over year. Bp is basis points where 100bp=1%. Why investors should warm to the update. As alluded to earlier, the trading update was very ...

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