MICROFICHE REFERENCE LIBFUUW - Cd3wd.com

150Table 5.6 Typical energy values and performance of fuelsenergy valueperformance*fuel BTU/gal hp-hr/gal BHP-hr/ga?gas01 ine 126,000 50 6-10diesel145,000 55 6-15kerosenebutanepropanenaturalelectricitycoalgasbituminouslignite*after Pair (1969)118,000 47 S-10102,000 40 4-892,000 36 4-81, 100/ft3 0.4/ft3 5-7/100 ft3-- 1.34/ kw-hr 0.5-1.2/kw-hr13,000/1b7,000/1b-- ---- --Again, geography will influence cost, e.g., in Asia $1,000 might buy abouta 3-5 hp engine. A few other typical U. S. prices for gasoline engines are:3 hp (1 cyl.) -- $ loo6 hp (1 cyl.) -- 32020 hp (2 cyl.) -- 72030 hp (4 cyl.) -- 95065 hp (4 cyl.) -- 1700While, for comparison, a 3 hp diesel sells for about $700, and a 30 hpis about $2,300. Regular maintenance replacement parts (e.g., lube, plugs,filters) are usually about 15 percent of fuel costs. In addition, repairson an engine can usually be expected to be about 200 percent of originalcost, over the engine’s life time.The choice then between which type of engine or motor depends ontheir prices i;nd availability, the price and availability of fuel (or