When.com Web Search

  1. Ad

    related to: how to calculate surge pressure in water line for basement ceiling heating

Search results

  1. Results From The WOW.Com Content Network
  2. Compressor characteristic - Wikipedia

    en.wikipedia.org/wiki/Compressor_characteristic

    Surge control line is the line which works as the indicating line for the surge control mechanism so that surge can be prevented in the system and proper steps can be taken. The line can vary for different surge control systems as it is up to the system to decide the margin between operating point and the surge point. [13]

  3. Water hammer - Wikipedia

    en.wikipedia.org/wiki/Water_hammer

    Effect of a pressure surge on a float gauge. Hydraulic shock (colloquial: water hammer; fluid hammer) is a pressure surge or wave caused when a fluid in motion is forced to stop or change direction suddenly: a momentum change. It is usually observed in a liquid but gases can also be affected.

  4. Surge in compressors - Wikipedia

    en.wikipedia.org/wiki/Surge_in_compressors

    This adverse pressure gradient naturally decelerates flows in the whole system and reduces the mass flow rate. The slope of a constant speed line near surge line is usually zero or even positive, which implies that the compressor cannot provide a much higher pressure as lowering the mass flow rate.

  5. Enthalpy–entropy chart - Wikipedia

    en.wikipedia.org/wiki/Enthalpy–entropy_chart

    The Mollier enthalpy–entropy diagram for water and steam. The "dryness fraction", x , gives the fraction by mass of gaseous water in the wet region, the remainder being droplets of liquid. An enthalpy–entropy chart , also known as the H – S chart or Mollier diagram , plots the total heat against entropy, [ 1 ] describing the enthalpy of a ...

  6. Hydronic balancing - Wikipedia

    en.wikipedia.org/wiki/Hydronic_balancing

    Hydronic balancing, also called hydraulic balancing, is the process of optimizing the distribution of water in a building's hydronic heating or cooling system by equalizing the system pressure. In a balanced system every radiator is set to receive the proper amount of fluid in order to provide the intended indoor climate at optimum energy ...

  7. Wikipedia:Reference desk/Archives/Science/2011 February 23 ...

    en.wikipedia.org/wiki/Wikipedia:Reference_desk/...

    A spring attached to a ceiling has mass of 500 g suspended from it such that the spring stretches 4.0 cm. Calculate the spring constant. I have taken two approaches to this question, but they seem to yield different answers! The first, dynamic approach: kx = mg k = mg / x = 0.5*9.8/0.04 = 122.5 N/m The second, energy approach: ½kx² = mgx

  8. Rayleigh flow - Wikipedia

    en.wikipedia.org/wiki/Rayleigh_flow

    However, due to the form of the T/T* equation, a complicated multi-root relation is formed for M = M(T/T*). Instead, M can be chosen as an independent variable where ΔS and H can be matched up in a chart as shown in Figure 1. Figure 1 shows that heating will increase an upstream, subsonic Mach number until M = 1.0 and the flow chokes.

  9. Surge control - Wikipedia

    en.wikipedia.org/wiki/Surge_control

    Surge control products have been used in many industries to protect the maximum working pressure of hydraulic system for decades. Typical applications for surge relief equipment is in pipelines at pump stations, receiving manifolds at storage facilities, back pressure control, marine loading/off loading, site specific applications where pressure surges are generated by the automation system ...