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2. Thermocouple - Wikipedia

   en.wikipedia.org/wiki/Thermocouple

   A thermocouple (the right most tube) inside the burner assembly of a water heater Thermocouple connection in gas appliances. The end ball (contact) on the left is insulated from the fitting by an insulating washer. The thermocouple line consists of copper wire, insulator and outer metal (usually copper) sheath which is also used as ground. [33]

3. Pilot light - Wikipedia

   en.wikipedia.org/wiki/Pilot_light

   When the pilot light goes out, electrical circuitry connected to the photoresistor shuts off the gas valve. Use of a pilot generator or a thermocouple in the flame provides heating appliance safety as it generates enough electric current from the burning flame to hold the gas valve open. If the pilot light goes out, the pilot generator cools ...

4. File:Active Indirect Water Heater Diagram.svg - Wikipedia

   en.wikipedia.org/wiki/File:Active_Indirect_Water...

   English: Active indirect water heater. 1: Municipal water feed 2: Fluid from water storage tank to external (passive) heat source; passive heat source can be the ground (soil or groundwater), sun or air; eg via heat pump, or thermodynamic solar panel 3: Fluid from heat pump, or thermodynamic solar panel to water storage tank 4: Pump, actuator, controller and other parts 5: Water heater 6 ...

5. Heat flux sensor - Wikipedia

   en.wikipedia.org/wiki/Heat_flux_sensor

   Second, the flow of water through the soil also represents a flow of energy, going together with a thermal shock, which often is misinterpreted by conventional sensors. The third aspect of soil is that by the constant process of wetting and drying and by the animals living on the soil, the quality of the contact between sensor and soil is not ...

6. Pipe marking - Wikipedia

   en.wikipedia.org/wiki/Pipe_marking

   Name of the substance/content, e.g. NATURAL GAS; Flow direction indicator arrows, ... Water 2138 6010 Grass green Gas 2149 1004 Golden yellow Acid 2163 4001

7. File:Thermocouple circuit Ktype including voltmeter ...

   en.wikipedia.org/wiki/File:Thermocouple_circuit...

   The following other wikis use this file: Usage on anp.wikipedia.org तापयुग्म; Usage on cs.wikipedia.org Termočlánek; Usage on eu.wikipedia.org

8. Thermostat - Wikipedia

   en.wikipedia.org/wiki/Thermostat

   The illustration is the interior of a common two wire heat-only household thermostat, used to regulate a gas-fired heater via an electric gas valve. Similar mechanisms may also be used to control oil furnaces, boilers, boiler zone valves , electric attic fans, electric furnaces, electric baseboard heaters, and household appliances such as ...

9. Thermodynamic diagrams - Wikipedia

   en.wikipedia.org/wiki/Thermodynamic_diagrams

   If the gas is heated so that the temperature of the gas goes up to T 2 while the piston is allowed to rise to V 2 as in Figure 1, then the pressure is kept the same in this process due to the free floating piston being allowed to rise making the process an isobaric process or constant pressure process. This Process Path is a straight horizontal ...