enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Back pressure - Wikipedia

    en.wikipedia.org/wiki/Back_pressure

    Back pressure is the term used for the hydraulic pressure required to create a flow through a chromatography column in high-performance liquid chromatography, the term deriving from the fact that it is generated by the resistance of the column, and exerts its influence backwards on the pump that must supply the flow.

  3. Surface condenser - Wikipedia

    en.wikipedia.org/wiki/Surface_condenser

    An air-cooled condenser is however, significantly more expensive and cannot achieve as low a steam turbine exhaust pressure (and temperature) as a water-cooled surface condenser. Surface condensers are also used in applications and industries other than the condensing of steam turbine exhaust in power plants.

  4. Condenser (heat transfer) - Wikipedia

    en.wikipedia.org/wiki/Condenser_(heat_transfer)

    A condenser unit used in central air conditioning systems typically has a heat exchanger section to cool down and condense incoming refrigerant vapor into liquid, a compressor to raise the pressure of the refrigerant and move it along, and a fan for blowing outside air through the heat exchanger section to cool the refrigerant inside. A typical ...

  5. Condenser (laboratory) - Wikipedia

    en.wikipedia.org/wiki/Condenser_(laboratory)

    The two hoses connected to the condenser circulate water through the space between the inner and outer walls. In chemistry, a condenser is laboratory apparatus used to condense vapors – that is, turn them into liquids – by cooling them down. [1] Condensers are routinely used in laboratory operations such as distillation, reflux, and ...

  6. Rankine cycle - Wikipedia

    en.wikipedia.org/wiki/Rankine_cycle

    Constant pressure heat rejection in condenser The wet vapour then enters a condenser , where it is condensed at a constant pressure to become a saturated liquid . In an ideal Rankine cycle the pump and turbine would be isentropic: i.e., the pump and turbine would generate no entropy and would hence maximize the net work output.

  7. Distillation - Wikipedia

    en.wikipedia.org/wiki/Distillation

    Reflux is a flow from the condenser back to the column, which generates a recycle that allows a better separation with a given number of trays. Equilibrium stages are ideal steps where compositions achieve vapor–liquid equilibrium, repeating the separation process and allowing better separation given a reflux ratio.

  8. Heat pump and refrigeration cycle - Wikipedia

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

    Vapor-compression refrigeration [6] For comparison, a simple stylized diagram of a heat pump's vapor-compression refrigeration cycle: 1) condenser, 2) expansion valve, 3) evaporator, 4) compressor (Note that this diagram is flipped vertically and horizontally compared to the previous one) [7] Temperature–entropy diagram of the vapor-compression cycle.

  9. Feedwater heater - Wikipedia

    en.wikipedia.org/wiki/Feedwater_heater

    This kind of heater will normally require a feed pump at both the feed inlet and outlet since the pressure in the heater is between the boiler pressure and the condenser pressure. A deaerator is a special case of the open feedwater heater which is specifically designed to remove non-condensable gases from the feedwater.