38 THE BUREAU OF SCIENCE 



Hospital. It is very desirable that a second gas generator be 

 installed in order to furnish a continuous supply of producer 

 gas for the engine. During the night shift, when the producer- 

 gas plant is running, a boiler is kept at high steam-pressure to 

 operate one of the steam engines in case of accident in the gas 

 engine in order to avoid any possible interruption of the light 

 service in the hospital. 



Engine room. — We have produced a slightly greater quantity 

 of electric current than heretofore and have reduced the cost 

 per kilowatt hour very materially when the producer-gas unit 

 was operating. The amounts generated and delivered at the 

 switchboard from July 1 to December 31, 1913, and for the 

 calendar year 1914 are 125,881 and 272,742 kilowatt hours, 

 respectively. For the fiscal year 1913 the average unit cost was 

 PO. 10129 per kilowatt hour. The average cost for the calendar 

 year 1914 is 1P0.0895763. The lowest unit cost is ?=0.069091 per 

 kilowatt hour for the month of July, when the producer-gas 

 plant was operated continuously except for fifty-three hours and 

 the price of coal was comparatively high. The fluctuating 

 monthly cost per kilowatt hour was due to the variable price 

 of coal and the length of time that the gas engine was run — 

 that is, the more the gas engine was run, the less the cost per 

 kilowatt hour. Of the total amount of current generated, 49.8 

 per cent was consumed in the Philippine General Hospital, 7.2 

 per cent in the College of Medicine and Surgery, and 43 per cent 

 in the Bureau of Science. The total amount of steam generated 

 in the boilers from July 1 to December 31, 1913, and for the 

 calendar year 1914 is 5,262,185 and 10,518,377 kilograms, 

 respectively. 



Boiler room. — The unit cost of generating the last-named 

 quantity of steam at 125 pounds per square inch gauge pressure 

 is ?=0. 002813 per kilogram. Of the total weight of steam gen- 

 erated 56.4 per cent was used in the Philippine General Hospital, 

 13.7 per cent in the Bureau of Science, and the remaining 29.9 

 per cent was consumed by the steam engines to generate electric 

 power. 



Mansfield gas-generating plant. — The total production of gas 

 generated from the retorts from July 1 to December 31, 1913, 

 and for the calendar year 1914, manufactured from kerosene 

 and Cape lubricating oil, amounted to 298,681 cubic feet (8,458 

 cubic meters) and 645,124 cubic feet (18,270 cubic meters), 

 respectively. 



