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2. Oil heater - Wikipedia

   en.wikipedia.org/wiki/Oil_heater

   An oil heater, also known as an oil-filled heater, oil-filled radiator, or column heater, is a common form of convection heater used in domestic heating. Although filled with oil , it is electrically heated and does not involve burning any oil fuel ; the oil is used as a heat reservoir (buffer).

3. Hot water storage tank - Wikipedia

   en.wikipedia.org/wiki/Hot_water_storage_tank

   Some manufacturers offer an extended warranty kit that includes a replacement anode rod. Because conventional hot water storage tanks can be expected to leak every 5 to 15 years, high-quality installations will include, and most US building/plumbing codes now require, a shallow metal or plastic pan to collect the seepage when it occurs.

4. Expansion tank - Wikipedia

   en.wikipedia.org/wiki/Expansion_tank

   Expansion tank in a central heating system. An expansion tank or expansion vessel is a small tank used to protect closed water heating systems and domestic hot water systems from excessive pressure.

5. Flameless ration heater - Wikipedia

   en.wikipedia.org/wiki/Flameless_ration_heater

   The instructions advise that the heater should rest against a "rock or something" The flameless ration heater is issued in a plastic bag with instructions printed on it. Inside the bag is a small quantity of metallic powders, which does the actual heating. To heat a meal, the bag is first torn open, and a sealed food pouch is placed inside.

6. Feedwater heater - Wikipedia

   en.wikipedia.org/wiki/Feedwater_heater

   A Rankine cycle with two steam turbines and a single open feedwater heater. A feedwater heater is a power plant component used to pre-heat water delivered to a steam generating boiler. [1] [2] [3] Preheating the feedwater reduces the irreversibilities involved in steam generation and therefore improves the thermodynamic efficiency of the system ...

7. Bubble column reactor - Wikipedia

   en.wikipedia.org/wiki/Bubble_column_reactor

   The slug and the annular flow regimes are usually observed in small-diameter bubble columns with an inner diameter of less than 0.15 m. [3] The former is characterized by giant bubbles, named Taylor bubbles, that occupy the entire cross-sectional area of the column. The latter is characterized by a central core of gas surrounded by a thin ...