xdxadmin
08-31-2004, 11:31 AM
A test program was conducted during June and July, 2002 to determine the effects of the XDX valve on the performance of a shell and tube evaporator. The evaporator tested was a 30 ton model using R22 and water as the heat transfer fluids. The procedure for the testing was to establish a baseline performance without the XDX valve; and to then, test the same evaporator with the XDX valve to determine the benefits.
The results of these tests indicate that the use of the XDX valve at the inlet of the evaporator increased the steady-state capacity by approximately 3 to 6 percent. The transient response test indicated that the time to reach a temperature of 44◦F with the XDX valve at the entrance to the evaporator was approximately one-half the time required to reach the same temperature without the XDX valve.
At transient conditions; however, the benefit of the XDX valve was more apparent. This effect could be beneficial to systems, such as test chambers or food processing equipment, which require quick temperature reduction.
Key: Food Processing, Wineries, Chillers, Shell & Tube Evaporators
The results of these tests indicate that the use of the XDX valve at the inlet of the evaporator increased the steady-state capacity by approximately 3 to 6 percent. The transient response test indicated that the time to reach a temperature of 44◦F with the XDX valve at the entrance to the evaporator was approximately one-half the time required to reach the same temperature without the XDX valve.
At transient conditions; however, the benefit of the XDX valve was more apparent. This effect could be beneficial to systems, such as test chambers or food processing equipment, which require quick temperature reduction.
Key: Food Processing, Wineries, Chillers, Shell & Tube Evaporators