Student Projects
Video showing actual performance of the Experiment
Contact Information
University: College Of Engineering, Pune
Team Members: Anjali A. Patil,
Rajesh S. Kaje,
Rohan A. Paranjpe,
Prashik D. Khadse
Faculty Advisor: Prof. P.R. Dhamangaonkar
Email Address: anjali.patil89@gmail.com,
Project Information
Title: Virtual Experimental Set-up to Study Heat Exchanger.
Description:
Virtual labs are a fusion of creative engineering andobjective conceptualization techniques to yield an interactive experience. It isa set of teaching and learning tools designed to enhance a student's learningexperience. Computer animation and visualization can help to illustrate complexphysical phenomena easily. Furthermore, they give us additional insight intoproblems during classroom teaching as well as in the individual study process.
Products:
LabVIEW 8.6
The Challenge:
Development of experiment“Determination of heat exchanger effectiveness” involves the study of conceptslike types of heat exchanger, various flow types in heat exchanger, LMTD,effectiveness and overall heat transfer. Heat transfer rate as well as outlettemperature of cold water can be calculated by heat balance equation. Heatbalance equation states that heat given by hot fluid is equal to the heat takenby cold fluid. LMTD calculation requires input and output temperatures of thefluids used in the experiments. Effective surface area can be calculated byusing dimensions of heat exchanger tube. Overall heat transfer coefficient canbe determined from heat transfer rate, effective area of heat exchanger andLMTD.
The Solution:
The calculations for parallel flow andcounter flow heat ex
changer are separated by the use of case structure. Property nodes are also used for sequential displaying ofall parameters on front panel in desired order. Outputs are represented inobservation table on front panel. For obtaining this table in user accessibleform, function write spreadsheet file is used. For representing observation tableon panel, standard array is used. While loop is used for sequential data entryin this table. All the data is converted from numeric form to fractional stringand given to observation table. To facilitate the performance and use of setup,instructions are also provided in procedure window. User can access detailedinstructions by open a separate VI on click of ‘theory’ specific button. This isachieved by use of special property nodes and invokes nodes. For continuousexecution this process is achieved by use of while loop. The VI property waschanged to run on start for execution of VI as soon as it is opened. Thisavoided the need of providing separate start button on front panel.
Figure: Actual set-up of the experiment
Open File named 'Heat Exchanger Experiment'
