procedures amp techniques of mechanical therapy
Handbook of Mechanical Engineering Calculations P1
... 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 tube bundle Mode of vibration ... and off-design performance of an HRSG, such as that in Fig 16, under different conditions of exhaust flow, temperature, and auxiliary firing without delving into the mechanical design aspects of ... nonhalogenated materials, will be phased out by the end of the decade because of environmental considerations (destruction of the ozone layer) Use of nonhalogenated refrigerants is expected to increase...
- 124
- 633
- 1
Handbook of Mechanical Engineering Calculations P2
... (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 ... Determine the quantity of steam, lbm / h (kg / h), lost from the condenser Calculation Procedure: Compute the mass rate of flow per hour of the air leakage The mass rate of flow per hour of the estimated ... 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 20 ft of water...
- 28
- 692
- 0
Tài liệu Handbook of Mechanical Engineering Calculations P3 pdf
... (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 the weight of the products of combustion ... and increases the weight of the products of combustion per pound (kilogram) of coal burned Therefore, the weight of the products of combustion is the sum of the weight of the combustion products...
- 24
- 744
- 0
Tài liệu Handbook of Mechanical Engineering Calculations P4 pptx
... 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 ... / lb of fuel ϭ Wc(14,150), where Wc ϭ lb of unconsumed carbon in refuse per lb of fuel fired With an ash and refuse of 9.42 percent of the dry coal and combustible in the ash and refuse of 32.3 ... Developing the performance characteristics of each piece of equipment as a function of load is the key to determining the mode of operation and loading of each type of steam producer For best results,...
- 80
- 634
- 0
Tài liệu Handbook of Mechanical Engineering Calculations P5 pdf
... the above calculation with this rule of thumb shows reasonably good agreement Determine the heater volume With a capacity of W lb / h of water, the volume of a direct-contact or open-type heater ... 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 the number of passes ... (number of tubes per pass)(passes)(area per ft of tube) Or, tube length for pass ϭ 92.7 / [(14)(1)(0.1636)] ϭ 40.6 ft (12.4 m) The area per ft of tube length is obtained from a table of tube...
- 16
- 616
- 1
Tài liệu Handbook of Mechanical Engineering Calculations P6 pdf
... 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 ... the denominator of the equation of step Thus, for a mixture of 50 percent glycol and 50 percent water, the constant ϭ 436, instead of 500 The method presented here is the work of Duane E Marquis, ... four types of fuels and the internal-combustion engines using them Note that where the cost of the fuel is high, the cost of the engine is low; where the cost of the fuel is low, the cost of the...
- 44
- 734
- 0
Tài liệu Handbook of Mechanical Engineering Calculations P7 docx
... calculation procedures given throughout 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 ... expressed in ft (m) of water To determine the pipe friction, use Fig 30 of this section and Table 17 and Fig of the Piping section of this handbook in the following manner Find the product of the liquid ... is highest at the end of a PHA study, the best time for rating the criticality of equipment is toward the end of such safety evaluations From Table 1, the NFPA rating, N, of process chemicals...
- 86
- 916
- 14
Tài liệu Handbook of Mechanical Engineering Calculations P8 doc
... velocity of a flowing fluid is changed by opening or closing a valve, pressure surges result The amplitude of the pressure surge is a function of the rate of change in the velocity of the mass of fluid ... factor of for traps installed between a boiler and the end of a steam main; traps at the end of a long steam main or ahead of pressure-regulating or shutoff valves usually have a safety factor of ... specific gravity of S, the weight of ft3 of oil ϭ (S )[weight of ft3 (1 m3) of fresh water at 60ЊF (15.6ЊC)] ϭ (0.80)(62.4) ϭ 49.92 lb / ft3 (799.2 kg / m3) Since gal (3.8 L) of liquid occupies...
- 136
- 560
- 0
Tài liệu Handbook of Mechanical Engineering Calculations P9 pdf
... / in2 (620 kPa) The weight of this motor, Table 1, is 135 lb (61.3 kg) Compare the advantages of air motors to other types of motive power Air motors have a number of advantages over their usual ... ft3 / min, of each tool Enter this value in column 1, Table Next list the number of each type of tool that will be used in the system in column Find the maximum probable air consumption of each ... conditions The displacement of an air compressor is the volume of air displaced per unit of time, usually stated in ft3 / In a multistage compressor, the displacement is that of the low-pressure cylinder...
- 44
- 648
- 1
Tài liệu Handbook of Mechanical Engineering Calculations P11 doc
... capacity of an electric heater to heat a pot containing 600 lb (272.2 kg) of lead from the charging temperature of 70ЊF (21.1ЊC) to a temperature of 750ЊF (398.9ЊC) if 600 lb (272.2 kg) of the ... heat Hm Btu required to melt a solid is Hm ϭ (weight of solid melted, lb)(heat of fusion of the solid, Btu / lb) Since the heat of fusion of lead is 10 Btu / lb (23.2 kJ / kg), Hm ϭ (600)(10) ... layouts are used when mechanical cleaning of the outside of the tubes is required Sometimes, widely spaced triangular patterns facilitate cleaning Both types of square pitches offer lower pressure...
- 86
- 620
- 0
Tài liệu Handbook of Mechanical Engineering Calculations P12 pdf
... kg) of water ice in 24 h, the rate of heat removal is a ton (3.516 kW) of refrigeration Since the heat of melting (sublimation) of lb (0.454 kg) of water ice is 144 Btu (151.9 kJ), a ton of refrigeration ... procedure 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, ... procedure 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,...
- 80
- 512
- 0
Tài liệu Some Pre-Analysis Techniques of Remote Sensing Images for Land-Use in Mekong Delta docx
... on pre-enhancement/analysis techniques as well as algorithms for interpretation of remote sensing images Green et al (2000) reviewed applying fields of remote sensing techniques in landuse detection, ... showed the resolution of the image Select Spot channel for creating RGB colour composie Tranform from RGB to IHS Result of IHS LEE filter of RADAR image Histogram adjustment of RADAR corresponding ... Backtranform from IHS to RGB Result of RGB Image fusion Figure 2: Flow scheme of performed steps in image fusion method (b) (c) Figure 3: Results of enhancement methods of RADARSAT in Camau region (a)...
- 9
- 531
- 1
Tài liệu Handbook of Mechanical Engineering Calculations P13 doc
... 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 sludge to be disposed of ... acceleration force (G), defined as multiples of gravity, is a function of the rotational speed of the bowl and the distance of the particle from the axis of rotation In the centrifuge, the centrifugal ... wastewater is to have a BOD5 of 20 mg / L Both filters are to have a depth of feet (2.1 m) and a recirculation ratio of Filter media will consist of rock Size both stages of the trickling filter assuming...
- 56
- 569
- 0
Tài liệu Handbook of Mechanical Engineering Calculations P14 pptx
... 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, read the inlet capacity per foot of length ... known of the efficiency of the average air-lift installation in small waterworks Tests show efficiencies in the neighborhood of 45 percent for depths of 50 ft (15 m) down to 20 percent for depths of ... quantity, in terms of percentage of total flow, for each part of the piping system In assuming a flow quantity note that (a) the loss of head due to friction between any two points of a closed circuit...
- 38
- 461
- 0
Tài liệu Handbook of Mechanical Engineering Calculations P15 docx
... (2.1 cm / m) of length? Calculation Procedure: Sketch the building roof Figure 13 shows the building roof and machinery room roof Indicate on the sketch the major dimensions of the roof and machinery ... roof area to be drained Two roof areas must be drained, the machinery-room roof and the main roof The respective areas are: machinery room roof area ϭ 50 ϫ 100 ϭ 5000 ft2 (464.5 m2); main roof ... sizes of brass pipe of standard internal diameter that correspond to the velocity limit of and ft/s (1.2 and 2.4 m / s), and to the friction limit of 4.0 lb/in2 / 100 ft (0.9 kPa / 100 m) of total...
- 62
- 457
- 0
Tài liệu Handbook of Mechanical Engineering Calculations P16 doc
... heat load The ventilation heat load ϭ (volume of air inflow)(number of air changes / hour)(density of air)(specific heat of air)(temperature rise of entering air) For this building, ventilation ... of the heating system times the heating value of the fuel as fired In such calculations, remember that ft2 (0.37 m2) of steam radiation are equivalent to a condensation rate of lb (0.454 kg) of ... moment of inertia for each part of the assembly The motor and fan are arranged as in Fig 15 Find the moment of inertia of the fan from Iƒ ϭ (fan weight / 32.2 ft / s ⅐ s)(1⁄12 in / ft)(radius of...
- 144
- 602
- 1
Tài liệu Handbook of Mechanical Engineering Calculations P17 doc
... In the winter, for example, an average recovery of 40 percent of 1200 Btu / ft2 (3785 W / m2) of solar energy of sloping surface would require approximately 100 ft2 (9.3 m2) of collector for the ... intake and return passages of the solar system The wheels permit the transfer of thermal energy from the return to the intake side of the system and offer a means of controlling humidity For ... (1032.3 m2) of evacuatedtube solar panels on the roof of their single-level parking structure These panels provide heating, cooling, and domestic hot water for two of the buildings on the campus Energy...
- 42
- 504
- 1
Tài liệu Handbook of Mechanical Engineering Calculations P19 pptx
... product of the plate thickness and the length of the cut Each square inch of the sheared area offers a resistance equal to the ultimate shearing strength of the material punched During stamping, ... Use the speed ration of the shafts to determine the diameter of the small sheave The speed ratio of the shafts is the ratio of the speed of the high-speed shaft to that of the low-speed shaft, ... web, each corresponding to one of the forms shown in Table 14 Then, the moment of inertia WK of the wheel will be equal to the direct sum of the moments of inertia of all the parts as calculated...
- 52
- 482
- 2
Tài liệu Handbook of Mechanical Engineering Calculations P20 pptx
... What is the moment of inertia of the high-speed and low-speed assemblies of this gearset? Calculation Procedure: Compute the moment of inertia of each gear The moment of inertia of a cylindrical ... of the gears is driven by another gear; the second gear of the compound set drives another gear In a compound gear train, the product of the number of teeth of the driving gears and the rpm of ... effect of two idler gears The effect of more than one idler is the same as that of a single idler—i.e., the speed of the driving and driven gears remains the same, regardless of the number of idlers...
- 38
- 361
- 0
Tài liệu Handbook of Mechanical Engineering Calculations P21 docx
... percent of rated torque to protect the gears and other parts of the drive Space limitations dictate an upper limit of in (10.2 cm) and a lower limit of 2.5 in (6.35 cm) for the diameters of the ... for a reasonable wear rate The shear of the screw threads with a factor of safety of and the shear stress determined earlier gives a length of engagement of Le,screw ϭ f.s pQ ditiss, screw with ... This procedure is the work of Richard M Phelan, Associate Professor of Mechanical Engineering, Cornell University SI vales were added by the handbook editor SELECTION OF A RIGID FLANGE-TYPE SHAFT...
- 50
- 462
- 1
Tìm thêm: hệ việt nam nhật bản và sức hấp dẫn của tiếng nhật tại việt nam khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra đối với đối tượng giảng viên và đối tượng quản lí khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ mở máy động cơ lồng sóc đặc tuyến hiệu suất h fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến tốc độ rôto n fi p2 động cơ điện không đồng bộ một pha sự cần thiết phải đầu tư xây dựng nhà máy phần 3 giới thiệu nguyên liệu từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008 chỉ tiêu chất lượng 9 tr 25