Test Of An Hydraulic Air Compressor
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Test Of An Hydraulic Air Compressor
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Author : William O. Webber
language : en
Publisher:
Release Date : 1901
Test Of An Hydraulic Air Compressor written by William O. Webber and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1901 with categories.
Developing Test Method For Evaluating Air Entrainers On An Hydraulic Air Compressor
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Author : Cheri Eslinger
language : en
Publisher:
Release Date : 2000
Developing Test Method For Evaluating Air Entrainers On An Hydraulic Air Compressor written by Cheri Eslinger and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Air-compressors categories.
Hydraulic Air Compressors
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Author : Leroy E. Schulze
language : en
Publisher:
Release Date : 1954
Hydraulic Air Compressors written by Leroy E. Schulze and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1954 with Air-compressors categories.
Inspection And Test Of Air And Other Gas Compressors
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Author :
language : en
Publisher:
Release Date : 1991
Inspection And Test Of Air And Other Gas Compressors written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Air-compressors categories.
Commissioning And Verification Of Compressed Air Yield On The Hydraulic Air Compressor Demonstrator
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Author : Justin Sivret
language : en
Publisher:
Release Date : 2018
Commissioning And Verification Of Compressed Air Yield On The Hydraulic Air Compressor Demonstrator written by Justin Sivret and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
The completion of the hydraulic air compressor (HAC) demonstrator at Dynamic Earth in Sudbury, Ontario marks the beginning of a series of research activities to increase the efficiency of compressed air production and build confidence in future commercial applications. Before any proper experiments could be conducted on the HAC Demonstrator a series of commissioning activities and testing was completed to i) calibrate the instruments, ii) check and understand losses, and iii) verify, or otherwise, some of the assumptions made during the system design. The practical work associated with this master's thesis included the development of a human machine interface (HMI) to allow for automated control of the HAC. Instrumentation and control equipment was installed and routed to a control panel providing conditioned power and routes for signals. Within the control panel, these are digitised and transmitted using TCP/ IP/ MODBUS protocol, operating over a TopServer (Software toolbox, 2009) OPC backbone. The OPC Client toolbox in MATLAB was adopted to interface with the OPC Server, and MATLAB's App Designer adopted for authoring the HMI. All I/O functionality is thus routed to MATLAB in which a PID control loop was established between the HAC separator water level and the HAC's compressed air motorized globe valve. Thus, a reliable, flexible, scientific control interface and data storage infrastructure was established for this novel compression plant as part of the master's work. The HAC Demonstrator can now effectively run a variety of experiments while recording a wide range of data for analysis. To date, a series of 90 benchmark tests for compressor performance have been completed in a systematic manner on the demonstrator to create a database of real HAC operating conditions. This thesis thus represents the first formal publication of the HAC Demonstrator's complete performance under the baseline operating conditions. Previous predictions of the compressed air yield and efficiency of a HAC of this size have been made by Millar (2014), upgraded to weakly couple solubility loss by Pavese et al. (2016) and refined using Young's (2017) detailed coupling of solubility and psychrometric phenomena. The predictions made by these models have been tested. The 1D hydrodynamic solubility models also predicted a small beneficial 'airlift' effect on compressor performance, due to exsolution of formerly dissolved compressed gas, that has also been reported upon. One unexpectedly important factor that has been found to affect HAC performance that was not anticipated in any of the models included the absolute surface roughness of rubber lined pipe, in comparison to that of bare steel pipe. High precision experiments are reported upon that have produced reliable values for absolute surface roughness for rubber lining materials, that have now been adopted in the HAC models, and may be adopted more widely too. The occurrence of detrainment, water jet-free fall and air re-entrainment is speculated upon as the source of previously unreported loss in the air-water mixing process, based on pressure profiling observations undertaken over the complete performance envelope of the Dynamic Earth HAC Demonstrator.
Tank Mounted Air Compressors
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Author :
language : en
Publisher:
Release Date : 1956
Tank Mounted Air Compressors written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1956 with Air-compressors categories.
Air Entrainment And Air Water Separation In Hydraulic Air Compressors
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Author : Alex Hutchison
language : en
Publisher:
Release Date : 2018
Air Entrainment And Air Water Separation In Hydraulic Air Compressors written by Alex Hutchison and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
A hydraulic air compressor (HAC) is an isothermal gas compressor that uses hydropower to compress air, originally developed by Charles Taylor in the 1890s to supply industry with compressed air. In the modern revival of this technology, the hydropower will be provided by pumps rather than natural sources. As such, energy efficiency is an important driver of component design; all of the hydropower is consumed either to overcome irreversibility or to compress air. The compressor relies on the increasing pressure of water flowing downward in a downcomer to compress air in the form of bubbles being dragged along with the flow. The air entrainment process at the top of the downcomer is facilitated by a mixing head. At the bottom of the downcomer, the bubbles are separated from the flow in a separator vessel. The objective of this thesis is to develop the design methodology for the air entrainment and air-water separation components on either end of the downcomer process. Several mixing heads were tested on a small (4.5 m height) prototype HAC. The test without a mixing head successfully entrained air, confirming that air entrainment is a system effect. Two heads with dissimilar geometry were associated with the lowest irreversibility, leading to the conclusion that the best design at that scale is a mixing head incorporating some form of vortex breaker. Air entrainment is driven by a system energy balance and not exclusively by a local Venturi geometry. The fraction of the air successfully captured in the plenum of the separator is called the separator effectiveness. Mechanistic models have been created to characterize both the irreversibility and separator effectiveness of two types of gravity separator (horizontal and vertical orientation) for iv the design of separators for future commercial-scale compressors. The separator effectiveness models require as input the flow field information from computational fluid dynamics analysis and the bubble size distribution at inlet. The bubble size distribution was measured on the small prototype and used to select a bubble size prediction model for testing on a much larger scale (29 m height) demonstrator HAC. The displacement model for horizontal separators matched the actual performance at the prototype scale well, particularly at high flow rate. The vertical velocity model produced a good match for the separator on the demonstrator HAC, but not for the same bubble size model identified on the small prototype.
Air Operated Pump Tests
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Author : Hydraulic Institute
language : en
Publisher:
Release Date : 2016
Air Operated Pump Tests written by Hydraulic Institute and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Compressed Air Handbook
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Author : Compressed Air and Gas Institute
language : en
Publisher:
Release Date : 1947
Compressed Air Handbook written by Compressed Air and Gas Institute and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1947 with Air-compressors categories.
Air Operated Pump Tests
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Author : Hydraulic Institute
language : en
Publisher:
Release Date : 2021
Air Operated Pump Tests written by Hydraulic Institute and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.