CIGR handbook of agricultural ENgineering volum IV

... reserved Any use is subject to the Terms of Use as given at the website Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION MODERN POWER-PLANT CYCLES AND EQUIPMENT CYCLE ANALYSES 1.4 ... estimation of various frequencies Use the listing of C values shown below to determine the mode of vibration Note that C is a factor determined by the end conditions of the tu...

Ngày tải lên: 09/11/2013, 04:15

... (0.28 kg) of water per pound (kg) of dry air Since the water content of the air is a function of the partial pressures, (0.622) (0.5067) / [(2 ϫ 0.5067)] ϭ 0.673 lb of water per lb of dry air ... m2) of condensing surface, a circulating-water flow rate of 10,000 gal / (630.8 L / s), 3⁄4-in (1.9-cm) no 16 BWG tubes, a water flow rate of ft / s (2.1 m / s), external friction of...

Ngày tải lên: 09/11/2013, 04:15

... (0.0283 cu m) of natural gas; 1300 cu ft of air (36.8 cu m) per gal (0.003785 cu m) of No fuel oil; 1450 cu ft of air (41 cu m) per gal of No fuel oil; 1500 cu ft of air (42.5 cu m) per gal of No fuel ... combustion of lb (0.45 kg) of coal ϭ sum of nitrogen and oxygen required ϭ 8.4228 ϩ 2.5444 ϭ 10.9672 lb (4.975 kg) of air per pound (kilogram) of coal burned Compute...

Ngày tải lên: 17/12/2013, 11:15

... lb of moisture per lb fuel burned; Ma ϭ lb of moisture per lb of dry air to furnace; Cb ϭ lb of carbon burned per lb of fuel burned ϭ C ϭ RCr; Cr ϭ lb of combustible per lb of refuse; R ϭ lb of ... Related Calculations Developing the performance characteristics of each piece of equipment as a function of load is the key to determining the mode of operation and loadin...

Ngày tải lên: 17/12/2013, 11:15

... output of the existing system is increased, as noted, because of increasing flow to the steam turbine’s condenser This increased output offsets the cost of interconnection to the boiler Related Calculations ... the number of tubes per pass Assume the heater has only one pass, and compute the number of tubes required Once the number of tubes is known, a decision can be made about...

Ngày tải lên: 17/12/2013, 11:15

... average heat of vaporization of 1000 Btu / lb (2330 kJ / kg) of steam, this exhaust gas flow could generate 8,880,000 / 1000 ϭ 8880 lb / h (4032 kg / h) of steam If oil with a heating value of 145,000 ... mid-rise of ce buildings Title 24 is a section of the State of California Administrative Code that deals with energy-conservation standards for construction applicable to of c...

Ngày tải lên: 17/12/2013, 11:15

... this handbook Once the required flow rate is determined, apply a suitable factor of safety The value of this factor of safety can vary from a low of percent of the required flow to a high of 50 ... Companies All rights reserved Any use is subject to the Terms of Use as given at the website Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION PUMPS AND PUMPI...

Ngày tải lên: 17/12/2013, 11:15

... surges result The amplitude of the pressure surge is a function of the rate of change in the velocity of the mass of fluid This procedure shows how to compute the amplitude of the pressure surge with ... stainless-steel pipes of different diameters, Fig 3, conveys 40 gal / (2.5 L / s) of water The length of each section of Downloaded from Digital Engineering Library @ McG...

Ngày tải lên: 17/12/2013, 11:15

... curve of a typical air motor Note how a built-in governor can change the shape of the curve by limiting the maximum speed of the air motor (Product Engineering) Downloaded from Digital Engineering ... (339.6 m3 / min) of air at a pressure of 14 lb / in2 (abs) (96.46 kPa) and a temperature of 60ЊF (15.6ЊC) Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitale...

Ngày tải lên: 17/12/2013, 11:15

... FACILITIES ENGINEERING TABLE Results of Trial Calculations 1st Trial Number of tubes Shell diameter, in Baffle spacing, in Product of factors: Tubeside Shellside Tube wall Fouling Total sum of products ... tube manufacturer’s engineering data show that a finned tube of these dimensions has 5.8 ft2 of area per linear foot (1.8 m2 / lin m) of tube To compute the linear feet L...

Ngày tải lên: 17/12/2013, 11:15

... is the work of Norman R Sparks, Professor and Head, Department of Mechanical Engineering, The Pennsylvania State University, and Charles C DiLio, Associate Professor of Mechanical Engineering, ... is the work of Norman R Sparks, Professor and Head Department of Mechanical Engineering, The Pennsylvania State University, and Charles C DiLio, Associate Professor of Mechanic...

Ngày tải lên: 17/12/2013, 11:15

... Filiform corrosion Filiform corrosion is a localized form of corrosion that occurs under a variety of coatings Steel, aluminum, and other alloys can be particularly affected by this form of corrosion, ... lowest concentration of oxygen at the head Coated alloy Tail Back of head X Front of head Head Direction of propagation Figure 1.10 Illustration of the filament nature...

Ngày tải lên: 22/12/2013, 23:17

... results of collective efforts of many authors, the Handbook of Corrosion Engineering is the result of an extensive survey of state-ofthe-art information on corrosion engineering by a principal author ... production of the Handbook of Corrosion Engineering are drastically different than other handbooks dealing with the same subject While other corrosion handbook...

Ngày tải lên: 22/12/2013, 23:17

... website Source: HANDBOOK OF MECHANICAL ENGINEERING CALCULATIONS SECTION 13 WASTEWATER TREATMENT AND CONTROL Kevin D Wills, M.S.E., P.E Consulting Engineer Stanley Consultants, Inc Design of a Complete-Mix ... of the sludge to be disposed of daily by the digester will be lower due to its operation days per week (the ‘‘bugs’’ not take the weekends off) Therefore the volume of...

Ngày tải lên: 25/12/2013, 23:18

... Values of r for 1000 ft (304.8 m) of Pipe Based on the Hazen-Williams FormulaЊ TABLE Value of the 0.85 Power of Numbers Downloaded from Digital Engineering Library @ McGraw-Hill (www.digitalengineeringlibrary.com) ... foot of length Enter Table 20 at the flow depth of 0.2 ft (0.06 m), and project to the depth of depression of the gutter of in (102 mm) Opposite this depth, r...

Ngày tải lên: 25/12/2013, 23:18