Exergetic performance analysis of high pressure air systems on ships

2022 ◽  
Vol 37 (1) ◽  
pp. 74
Author(s):  
Asim Sinan Karakurt ◽  
Ibrahim Ozsari ◽  
Veysi Bashan
Keyword(s):  
High Pressure ◽  
Performance Analysis

Exergetic performance analysis of high pressure air systems on ships

2022 ◽  
Vol 37 (1) ◽  
pp. 74
Author(s):  
Veysi Bashan ◽  
Asim Sinan Karakurt ◽  
Ibrahim Ozsari
Keyword(s):  
High Pressure ◽  
Performance Analysis

Vibration Analysis of High-Pressure Cylindrical Cylinders

2015 ◽  
Vol 757 ◽  
pp. 127-132
Author(s):  
Zhong Bao Qin ◽  
Jian Feng Guo ◽  
Fei Meng ◽  
Xiao Long Hu
Keyword(s):  
High Pressure ◽  
Performance Analysis ◽  
Vibration Analysis ◽  
Safety Performance ◽  
Vibration Frequencies ◽  
Plate And Shell ◽  
Simulation Calculation ◽  
Vibration Problems ◽  
Similarities And Differences ◽  
Shell Vibration

In order to solve the vibration problems of car high-pressure cylindrical cylinders, Plate and Shell Vibration Theory is used for the calculation and analysis of the vibration characteristics. The vibration frequencies and modes of such cylinders are obtained. At the same time, the corresponding results are gotten through ANSYS12.0 simulation calculation. The similarities and differences of the both vibration frequencies and the changes of the respective modes are compared and analyzed to support the farther safety performance analysis of such cylinders in the vibration environment.

Performance Analysis of Single Stage Compression Cycle with an Internal Heat Exchanger

2013 ◽  
Vol 753-755 ◽  
pp. 1401-1404
Author(s):  
Gui Jun Xue ◽  
Da Wei Liang ◽  
Guang Da Liu ◽  
Shui Qing Li ◽  
Zhen Jiang Zhou
Keyword(s):  
High Pressure ◽  
Heat Exchanger ◽  
Performance Analysis ◽  
Internal Heat ◽  
Single Stage ◽  
Outlet Temperature ◽  
Outlet Pressure ◽  
Internal Heat Exchanger ◽  
Compression Cycle ◽  
Increasing Trend

With the increase of outlet pressure to compressor, all cycle COP is a reducing trend except R744, in addition, R744 compression cycle has an optimum high pressure. When the inlet temperatures of compressor gradually increase, the performances of all cycles basically unchanged, but the R744 compression cycle has an increasing trend. With the increasing of outlet temperature to the condenser, the performances of all cycles are decreased; instead with increasing of the evaporating temperature, all cycle COP is an increasing trend.

Performance Analysis of Single Stage Compression Cycle with an Internal Heat Exchanger

2012 ◽  
Vol 602-604 ◽  
pp. 1068-1071
Author(s):  
Hong Li Wang ◽  
Hui Qin Liu ◽  
Qi Long Tang ◽  
Ning Jia
Keyword(s):  
High Pressure ◽  
Heat Exchanger ◽  
Performance Analysis ◽  
Internal Heat ◽  
Single Stage ◽  
Outlet Temperature ◽  
Internal Heat Exchanger ◽  
Compression Cycle ◽  
Increasing Trend

With increasing of high pressure, the performances of all kinds refrigerants except for R744 are all declined, transcritical R744 compression cycle has an optimum high pressure. With increasing of the evaporating temperature, all cycle COP is an increasing trend, with increasing of outlet temperature of condenser, the performances of all cycles are decreased. Under the same comparison conditions, the performance of R22 refrigerant cycle is superior to the cycles of other refrigerants, and the cycle of R11 refrigerant has the worst performance.

Performance Analysis of Refrigerants R134a Two Stage Compression Cycle with Two Gas Cooler

2013 ◽  
Vol 753-755 ◽  
pp. 2782-2785
Author(s):  
Gui Jun Xue ◽  
Da Wei Liang ◽  
Guang Da Liu ◽  
Shui Qing Li ◽  
Zhen Jiang Zhou
Keyword(s):  
High Pressure ◽  
Performance Analysis ◽  
Downward Trend ◽  
Outlet Temperature ◽  
Two Stage ◽  
Intermediate Pressure ◽  
Compression Cycle ◽  
Increasing Trend

With increasing of high pressure, the two stage compression cycle with two gas cooler has a downward trend. With increasing of the evaporating temperature, the two stage compression cycle with two gas cooler has an increasing trend. With increasing of outlet temperature of condenser; the two stage compression cycle with two gas cooler has a downward trend. With increasing of intermediate pressure, the performances of the two stage compression cycle with two gas cooler are decreased.

Performance Analysis of Refrigerants R1234yf Single Stage Compression Cycle with a Throttle Valve and an Expander

2013 ◽  
Vol 753-755 ◽  
pp. 2790-2793
Author(s):  
Jing Rui Tian ◽  
Hong Li Wang ◽  
Gui Jun Xue ◽  
Qing Hua Zhang
Keyword(s):  
High Pressure ◽  
Performance Analysis ◽  
Pressure Ratio ◽  
Single Stage ◽  
Cycle Performance ◽  
Outlet Temperature ◽  
Throttle Valve ◽  
Compression Cycle ◽  
Increasing Trend ◽  
Better Than

In range of high pressure, the performance of single stage cycle with an expander (SCE) is better than the cycle with a throttling valve (SCV). With increasing of the evaporating temperature or decreasing outlet temperature of condenser, the performance of the two cycles is an increasing trend. With increasing of pressure ratio, the performances of all cycles are decreased. Under the same comparison conditions, expander cycle performance superior to the throttle valve performance.

Performance Analysis of Single Stage Compression Cycle with a Throttle Valve

2013 ◽  
Vol 753-755 ◽  
pp. 2679-2682
Author(s):  
Jing Rui Tian ◽  
Hong Li Wang ◽  
Gui Jun Xue
Keyword(s):  
High Pressure ◽  
Performance Analysis ◽  
Single Stage ◽  
Outlet Temperature ◽  
Throttle Valve ◽  
Compression Cycle ◽  
Increasing Trend

With increasing of high pressure, the performances of all kinds refrigerants except for R744 are all declined and transcritical R744 compression cycle has an optimum high pressure. With increasing of the evaporating temperature, all cycle COP is an increasing trend, with increasing of outlet temperature of condenser, the performances of all cycles are decreased. Under the same comparison conditions, the performance of R134a refrigerant cycle is superior to the cycles of other refrigerants, and the cycle of R11 refrigerant has the worst performance.

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