Lynde, Carleton John, b. 1872 · New York, Macmillan · leaf 111
FIG. 70. — A convectioncurrent in water. 96 PHYSICS OF THE HOUSEHOLD radiator by two pipes. The system works as. follows: Whena fire is lighted in the fire box, the water in the boiler is heated.It therefore expands and becomes lighter, per cubic foot, thancold water. The cooler water in the… … 71.— A hot-water heating system. hot water up from the boiler into the radiator. This hot watergives up its heat to the air in the room, and thus cools, contracts,and becomes heavier. It then sinks back into the boiler, andforces more hot water into the radiator. This convectioncurrent continues as…
Physics · Home Economics
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