House Heating by Steam and Water: Improved Methods of Installing Heating Apparatus in the Home ... Etc

Εξώφυλλο
Plumbers Trade Journal, 1907 - 265 σελίδες
 

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Άλλες εκδόσεις - Προβολή όλων

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Δημοφιλή αποσπάσματα

Σελίδα 11 - The most common unit is the British thermal unit (btu), the quantity of heat necessary to raise the temperature of one pound of water one degree Fahrenheit.
Σελίδα 11 - It may be noted from these data that the difference between the temperature of the air in the room and the...
Σελίδα 155 - The amount of heat required to raise one pound of water through one degree Fahrenheit.* Q.
Σελίδα 23 - HEAT UNITS LOST BY CONVECTION FROM HORIZONTAL PIPES PER SQUARE FOOT OF SURFACE PER HOUR, FOR A TEMPERATURE DIFFERENCE OF 1° F.
Σελίδα 60 - At sea level the pressure of the atmosphere is 14.7 pounds per square inch, and water will begin to boil at a temperature of 212° Fahrenheit.
Σελίδα 155 - ... Calories per kilogram 1 Calorie per kilogram... = .556 BTU per pound To reduce calories per kilogram to BTU, per pound, multiply by 1.8 Ultimate Analysis. — All fuels depend for their heating value upon the amount of carbon and hydrogen they contain. Solid fuels contain, in addition to these useful elements, other substances which have no heating value, such as ash, water and oxygen, the latter being combined with the hydrogen and carbon. Small percentages of sulphur and nitrogen are also usually...
Σελίδα 11 - Btu ) , a calorific unit representing the amount of heat necessary to raise the temperature of one pound of water one degree Fahrenheit. This...
Σελίδα 16 - This is not so difficult as it may seem, and it is just as easy to learn to do a thing right as it is to acquire the habit of doing it wrong.

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