When.com Web Search

  1. Ads

    related to: intoxilyzer vs breathalyzer water heater conversion chart

Search results

  1. Results From The WOW.Com Content Network
  2. Energy factor - Wikipedia

    en.wikipedia.org/wiki/Energy_factor

    The energy factor metric only applies to residential water heaters, which are currently defined by fuel, type, and input capacity. [5] Generally, the EF number represents the thermal efficiency of the water heater as a percentage, since it is an average of the ratio of the theoretical heat required to raise the temperature of water drawn to the amount of energy actually consumed by the water ...

  3. Breathalyzer - Wikipedia

    en.wikipedia.org/wiki/Breathalyzer

    For example, a breathalyzer measurement of 0.10 mg/L of breath alcohol characterises approximately 0.0001×2251 g/L, or 0.2251 g/L of arterial blood alcohol concentration (equivalent to 0.2251 permille or 0.02251% BAC). [15] The ratio of venous blood alcohol content to breath alcohol content may vary significantly, from 1300:1 to 3100:1.

  4. Energy conversion efficiency - Wikipedia

    en.wikipedia.org/wiki/Energy_conversion_efficiency

    An ideal electrolysis unit operating at a temperature of 25 °C having liquid water as the input and gaseous hydrogen and gaseous oxygen as products would require a theoretical minimum input of electrical energy of 237.129 kJ (0.06587 kWh) per gram mol (18.0154 gram) of water consumed and would require 48.701 kJ (0.01353 kWh) per gram mol of ...

  5. Ignition interlock device - Wikipedia

    en.wikipedia.org/wiki/Ignition_interlock_device

    The Swedish Transport Agency trialed it in 1999 and offered a programme of alcohol interlock device with medical certificates for drivers convicted with a BAC level between 0.2 and 0.9 g/l and a 2 year programme for convicted repeat offenders (within a five-year period), and offenders with a BAC level of at least 1.0 g/. As of 2020, about 3,000 ...

  6. Heating seasonal performance factor - Wikipedia

    en.wikipedia.org/wiki/Heating_seasonal...

    The higher the HSPF rating of a unit, the more energy efficient it is. An electrical resistance heater, which is not considered efficient, has an HSPF of 3.41. [3] Depending on the system, an HSPF ≥ 9 can be considered high efficiency and worthy of a US Energy Tax Credit. [4]

  7. 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 ...

  1. Ad

    related to: intoxilyzer vs breathalyzer water heater conversion chart