Verbatim report of the ... Annual Meeting of the American Street-Railway Association (1884)
American Street Railway Association. Meeting · Brooklyn, N.Y. : Office of the Association · leaf 234
pound of water one degree Fahrenheit, indicated here as B. T. U. If we require 20,000 British thermal units in zero weather, when the outside temperature is 11% degrees Fahr. we only require 16,000 British thermal units per hour; when it is 25 degrees we only require 12,000 British thermal units… … FIG. 10. necessary to be given to a car in order to maintain an even temperature of 65 degrees inside. Now what I want to call your attention to is this — if you have electric heaters capable of generating 20,000 thermal units — supposing that to be 20,000, or your maximum, what is the use of using…
Electric railroads · Street-railroads
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
