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Showing 1 to 20 of 634 for “"pipes"”.
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Butt fusion welding of polyethylene pipes
… used in the joining of polyethylene (PE) pipes by the water and gas industries. This welding process although deceptively simple, is rather poorly understood, with much of the initial developments being of a rather empirical nature. The Water Research centre (WRc) have funded the present …
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Water hammer in pipes and relative phenomena
Made available in DSpace on 2014-09-18T16:21:05Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) waterhammerinpip00enge_0.pdf: 10975182 bytes, checksum: b924bb2131dbf7fbfc45a1c7d2b68ed7 (MD5) Previous issue date: 1911
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Method of testing and voicing organ pipes
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Physics, 1922.
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An investigation into gravity independent oscillating heat pipes
… AUTHOR'S REQUEST.] A number of oscillating heat pipes (OHPs) with unbalanced structures were investigated in an effort to develop methods enabling OHPs to be gravity independent. The unbalanced structures investigated herein include the effects of uneven turn and check valves. Two 2-D and two 3-D …
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Viscous Fluid Flow in Bifurcating Channels and Pipes
… fluid in a bifurcation of thin three-dimensional pipes with a diameter-to-length ratio of order O(epsilon) is studied. The model is based on the steady-state Navier-Stokes equations with pressure conditions on the in- and outflow boundaries. Existence and local uniqueness is proven under the …
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Modelling of linebreak in high-pressure gas pipes
… the heat transfer i. e. one for the case of pipes exposed to the atmosphere and buried pipes have been incorporated with the model. Experimental data from full-scale pipeline tests is used to validate the computer models. Results from the computer model simulations show good agreement with …
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CFD studies of complex fluid flows in pipes
… length by a large factor, so that much shorter pipes can be used to achieve a desired exit temperature. These effects increased with both vibration frequency and amplitude but were more sensitive to the amplitude. Higher fluid viscosities required larger amplitudes and/or frequencies to achieve …
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Leakage Characterisation in Bulk Pipes using Pressure Tests
The supply of water is becoming increasingly strained as the demand for this essential and limited resource continues to increase. A significant amount of this resource is, however, lost through leakage. Not only does this result in a waste of a precious resource, but it also leads to a direct loss …
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Acoustic transmission through fluid-filled pipes in boreholes
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1991, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1991.
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The simulation of passive water hammer in pipes
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1996.
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Acoustical wave propagation in buried water filled pipes
… specific application in water-filled underground pipes. The problem is studied in two stages: First the pipe is considered to be very stiff in relation to the contained fluid and then the stiffness of the pipe and the soil are taken into account. In both cases the solution process can take into …
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Drag reduction by polymer solutions in riblet pipes
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1995.
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A Barkhausen Noise Testing System for CANDU Feeder Pipes
… of residual stresses in CANDU reactor feeder pipes. The system consists of a four-channel arbitrary waveform flux control system (FCS), and the spring-loaded tetrapole prototype (SL4P) BN probe. The combination of the FCS and SL4P was shown to provide repeatable BN measurements on feeder pipe …
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Soil thermal properties and heat loss from buried pipes
… a knowledge of the heat loss from buried pipes under diverse conditions. The heat loss can be estimated by various theoretical equations provided the thermal conductivity of the soil (k) and a temperature difference (Äè) between the pipes and the surrounding soil are known. Therefore, the …
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