This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1881 Excerpt: ...of coke burnt to heating surface, in feet, 1 to 6. Grate space to capacity of fire-box, in inches, 1 to 178. Heating surface to cube contents, in inches, 1 to 31. The total heating surface of each stove is 296 square feet, and the radiating surface 779 square feet. The work actually done by each stove in warming air is ...
Read More
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1881 Excerpt: ...of coke burnt to heating surface, in feet, 1 to 6. Grate space to capacity of fire-box, in inches, 1 to 178. Heating surface to cube contents, in inches, 1 to 31. The total heating surface of each stove is 296 square feet, and the radiating surface 779 square feet. The work actually done by each stove in warming air is as follows: No. 1 stove--1,192 cubic feet of air thrown into room at 312 Fahr., outer air being at 520, difference 2600. By multiplying the cubic feet of air by its weight in pounds per cubic foot at 312 and by its specific heat per pound, which is constant at all temperatures, and by the number of degrees Fahr. that the temperature of the air is raised--the heat units per minute are given as under, and these, multiplied by 60, give the units per hour. G 82 Arlington Baths, Glasgow. No. I Stove. 1,192 cubic feet raised to 312, 3,465-28 units x 60--207,916.8 units. No. 2 Stove. 788 7 cubic feet raised to 2600, 2.14739 units x 60 = 128,843-4 A total of 336,760-2 To produce this result the consumption of gas coke is 60 cwts. in cold, and 48 cwts. in warm weather. The temperature being at 520 during these observations, the latter amount has been taken, giving 97-7 lbs. of coke consumed per hour, or 48, 8 lbs. per stove. The heating power of coke, when fully burnt with sufficient air, is 10,970 units per pound. This consumption, therefore, yields 1,071,769 units per hour for both, or 535,844-5 units per stove. This shows that 735,009 units of the coke used per hour are wasted, so far as the heating of air is concerned. Partly by radiation through brickwork casing, &c, partly by imperfect combustion of coke (too little air being supplied), and partly by over-faring, a great part of the heat is sent up the chimney. The great wast...
Read Less
Add this copy of Practical Ventilation and Warming to cart. $56.29, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2015 by Palala Press.