Heat Exchanger
Written by:
Jinpeng Wang
1University of Missouri-Columbia Department of Chemical Engineering, CHE ENG 3423 Fall2014
Group: F1
Group members:
Cade Robinson Jinpeng Wang Phillip Weltmer Nathan Little
Submission Date: March 17, 2014
2Summary Heat exchanger is used to transfer heat from one medium to another. The media may be separated by a solid wall such as a pipe to prevent the media from contacting directly. 3To gain a better understanding of how the heat exchanger work, a simple experiment of Double Pipe heat exchanger was undertaken. 4A Double Pipe heat exchanger was operated at different hot and cold flow rate in two different conditions (Counter Current and Co-current) by changing the three-way valves. During the experiment the temperature was collected.
Using this data the , and of both conditions can be calculated. It was found that Counter-Current was much more efficient than Co-current, since the difference of cold temperature of Counter-Current was bigger than Co-Current, that caused the Counter-Current can provide a bigger driving force for transferring heat.
Experimental Method Figure 1. 3Double pipe Heat Exchanger
As displayed in the diagram, the fluid in the Double Pipe heat exchanger was operated by valves. The thermocouples were used to measure the beginning and end temperature of the pipe. The Counter-current and Co-current were exchanged by the three-way valves.
Initially, the valve 7, 11 and 12 should be completely opened. 5After switching the pump and two water heaters, the valve 7 should be opened completely to allow the system to reach steady- state. One the system reached steady-state, the valve 8 was used to change the flow value between 0.5 and 2 gallons per mi...
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...2.5349 -3.0664
= -5.286kW solve Co-Current: = -5.322kW solve
Persons Assigned Tasks Tasks Start data duration End data All Perform Data Analysis 8-Mar 3 10-Mar All Make Figure/Tables 8-Mar 3 10-Mar Jinpeng Wang Sample Calculations 8-Mar 3 10-Mar Jinpeng Wang Experimental Section 10-Mar 2 11-Mar Jinpeng Wang Results and Discussion Section 10-Mar 4 13-Mar Jinpeng Wang Conclusion Section 13-Mar 2 14-Mar Jinpeng Wang Recommendation Section 13-Mar 2 14-Mar Jinpeng Wang Reference formatting 13-Mar 2 14-Mar Jinpeng Wang Summary Section 14-Mar 2 15-Mar Jinpeng Wang Title Page 14-Mar 2 15-Mar Jinpeng Wang Assemble Appendix 11-Mar 4 14-Mar Jinpeng Wang Assemble report draft 15-Mar 2 16-Mar Jinpeng Wang Check formatting/mechanics 15-Mar 2 16-Mar Jinpeng Wang Turn in Draft 17-Mar 1 17-Mar Draft corrections 19-Mar 4 23-Mar Jinpeng Wang Turn in Final version 2-Apr 1 24-Mar
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