Section15 Pressure Vessel Design
... Applicable for any wall thickness- to-radius ratio. Cylinder under Pressure Consider a cylinder, with capped ends, subjected to an internal pressure, p i , and an external pressure, p o , ... under internal pressure verses external pressure: Internal Pressure Only 2 0 (Text Eq.4-55) 42 i t r it l pd Hoop Stress t By Definition pd Capped Case t σ σ σ σ = = == External Pressure Only ... 4-52) Two Mechanical Design Cases 1. Internal Pressure Only ( 0= o p ) 2. External Pressure Only ( 0= i p ) Design Case 1: Internal Pressure Only • Only one case to consider — the...
Ngày tải lên: 18/10/2013, 05:15
... the ASME Boiler and Pressure Vessel Code,” or “meet the requirements of the ASME Boiler and Pressure Vessel Code.” The ASME Symbol shall be used only for stamping and nameplates as specifically ... and including 1 in. (25 mm), a full thickness specimen shall be used for each required tension test. (b) For plate thickness greater than 1 in. (25 mm), full thickness specimens or multiple specimens ... in lieu of full thickness specimens, each set shall represent a single tension test of the full plate thickness. Collectively, all of the specimens required to represent the full thickness of the...
Ngày tải lên: 19/01/2014, 21:20
DESIGN PROCEDURE FOR PRESSURE VESSEL
... completed vessel filled with water shall be subjected to test pressure which is equal to 1 ½ times the maximum allowable working pressure to be marked on the vessel or 1 ½ the design pressure ... PRESSURE: The maximum gage pressure permissible at the top of a completed vessel in its operating position for a designed temperature. This pressure is based on the weakest element of the vessel ... cause permanent set. DESIGN PRESSURE: The pressure used in determining the minimum permissible thickness or physical characteristics of the different parts of the vessel. (Code UG-60) DESIGN...
Ngày tải lên: 12/03/2014, 16:34
Ngày tải lên: 02/04/2014, 09:28
An international code 2007 asme boiler & pressure vessel code doc
Ngày tải lên: 11/07/2014, 20:20
An international code 2007 asme boiler & pressure vessel code I pdf
Ngày tải lên: 11/07/2014, 20:20
An international code 2007 asme boiler & pressure vessel code IX docx
Ngày tải lên: 11/07/2014, 20:20
CAN INFORMATION SYSTEMS SAVE U.S STEEL (Liệu hệ thống thông tin có thể cứu nguy cho công ty Thép Hoa Kỳ hay không).docx
... TÌNH HUỐNG Tổng công ty thép Hoa Kì U.S .Steel (U.S Steel) được thành lập vào năm 1901 và nhanh chóng trở thành công ty thép lớn nhất tại Hoa Kì. U.S Steel có trụ sở chính tại Pittsburgh, Pennsylvania, ... US Steel rớt giá xuống còn 45,66 USD/ cổ phiếu, giảm 6,6%. (2) 1.2. Các vấn đề khác mà U.S Steel đang phải đối mặt Dù được xem là nhà sản xuất thép lớn nhất Hoa kỳ và Bắc Mỹ nhưng U.S Steel ... Hoa Kì (U.S Steel) . Cụ thể nội dung của bài nghiên cứu là “ Liệu hệ thống thông tin có thể cứu nguy cho công ty Thép Hoa Kì (U.S Steel) hay không?” 2. GIỚI THIỆU CHUNG VỀ U.S STEEL: Tổng công...
Ngày tải lên: 21/09/2012, 17:09
Steel Casting Handbook
... dimensional tolerances for steel castings have been developed by the SFSA. These SFSA 2000 steel casting dimensional tolerances should be used instead of the specific steel casting tolerance ... appendix describes the tolerances, which may be achieved on steel castings produced in sand molds and for steel investment castings. Steel sand castings may be produced by molding processes such ... General pattern allowance values for common steel casting alloys Alloy Pattern Allowance Carbon and low alloy steel 2.08% 1/4 in/ft High alloy steels 2.60% 3/16 in/ft The pattern allowance...
Ngày tải lên: 23/10/2012, 09:10
Báo cáo y học: " High blood pressure, antihypertensive medication and lung function in a general adult population"
... medication irrespective of high blood pressure. Furthermore, an effective blood pressure treatment and an ineffective blood pressure treatment, meaning high blood pressure despite the use of antihypertensive ... Quanjer et al. [18]. Blood pressure, medication and other determinats Blood pressure was measured using a validated automatic device (OMRON HEM 705-CP). Three independent blood pressure measurements ... following classes of high blood pressure based on the blood pressure measurement (HBP ≥ 140/90 mmHg) and antihyperten- sive medication were defined: - A. HBP: high blood pressure regardless of its...
Ngày tải lên: 25/10/2012, 10:45
Báo cáo y học: "Effects of p-Synephrine alone and in Combination with Selected Bioflavonoids on Resting Metabolism, Blood Pressure, Heart Rate and Self-Reported Mood Changes"
... Table 2 shows changes in blood pressures and resting heart-rates from baseline to the ending test for each of the five study groups. The average baseline blood pressures and resting heart-rates ... ef- fects by many authors [see for example, 20, 21, 33-35]. However, no effects on heart rate or blood pressure were observed in response to p-synephrine or p-synephrine in combination with naringin ... effects [38], particularly in caffeine-sensitive individuals [39]. The absence of changes in blood pressure, rest- ing heart-rate and self-ratings in the four treatment groups involving p-synephrine,...
Ngày tải lên: 25/10/2012, 11:04
Báo cáo y học: "Effect of Acute Administration of an Herbal Preparation on Blood Pressure and Heart Rate in Humans"
... 79.2 ± 6.4 92.4 ± 7.3 0.83 ±0.07 PL: Placebo; DS: Dietary Supplement; BP: Blood Pressure; MAP: Mean Arterial Pressure; RER: Respiratory Exchange Ratio. Each value is the mean +SD. Table ... 78.8 ±7.5 93.5 ±8.0 0.83 ±0.05 PL: Placebo; DS: Dietary Supplement; BP: Blood Pressure; MAP: Mean Arterial Pressure; RER: Respiratory Exchange Ratio. Each value is the mean + SD. Int. J. ... No effects of the dietary supplement on heart rate, systolic and diastolic blood pressure or mean arterial pressure were observed. No between or within group differences were observed when...
Ngày tải lên: 25/10/2012, 11:10
Báo cáo y học: " Carotid Intima-media thickness in childhood and adolescent obesity relations to abdominal obesity, high triglyceride level and insulin resistance"
... et al. Systolic and pulse blood pressures (but not diastolic blood pressure and serum cholesterol) are associated with alterations in carotid inti- ma-media thickness in the moderately hypercholesterolaemic ... weight, body mass index, waist circumference, waist to hip ratio, systolic blood pressure, diastolic blood pressure, fasting insulin, homoeostasis model assessment-insulin resistance, triglyceride, ... circumfe- rence was measured at the widest part at the gluteal region. Systolic blood pressure (SBP) and diastolic blood pressure (DBP) were measured twice at the right arm after a 10-minute rest in...
Ngày tải lên: 25/10/2012, 11:40
Báo cáo y học: "Discriminating between elderly and young using a fractal dimension analysis of centre of pressure"
... Int. J. Med. Sci. 2004 1(1): 11-20 12 1. Introduction Centre of pressure (COP) traces derived from force readings have the potential to inform us about the control ... to eliminate order effects. Force data, collected at 20 Hz, were measured using a Kistler force plate (type 9281B, Kistler Instrumente AG, Winterthur, Switzerland) to provide anterior/posterior ... reserved Discriminating between elderly and young using a fractal dimension analysis of centre of pressure Research paper Received: 2004.1.21 Accepted: 2004.2.05 Published:2004.3.10 Tim L....
Ngày tải lên: 03/11/2012, 10:09
Bạn có muốn tìm thêm với từ khóa: