Go Back   Physics Help Forum > High School and Pre-University Physics Help > Thermodynamics and Fluid Mechanics

Thermodynamics and Fluid Mechanics Thermodynamics and Fluid Mechanics Physics Help Forum

Reply
 
LinkBack Thread Tools Display Modes
Old Jul 10th 2013, 06:34 AM   #1
Junior Member
 
Join Date: Jul 2013
Posts: 1
Callender and Barnes' Continuous Flow Method

Hi there, I was revising through my Thermal Physics notes and found that they weren't very detailed in describing the Continuous Flow Method for measuring Specific Heat Capacity of a liquid.

It says that by adjusting the current and potential when using a different mass flow rate till temperatures at the inlet and outlet are the same for the 2 sets of data, the rate of heat loss to the surrounding is constant.

Here's my questions:
What exactly is the heat loss from? By radiation from the water and heating coil?

Why is it that maintaining constant temperatures at inlet/outlet makes the rate of heat loss to surroundings constant? My understanding is that since a different mass flow rate is used, shouldn't rate of heat loss change? As the mass of water flowed through per unit time is different and thus heat loss from a different mass of water is different?

Thanks!
taenyfan is offline   Reply With Quote
Old Jul 10th 2013, 01:42 PM   #2
Senior Member
 
Join Date: Jun 2010
Location: NC
Posts: 418
Apparatus...

Hi taenyfan:

Is there an apparatus schematic for this event? Or what is the
measurement technique called?

Thanks, JP
THERMO Spoken Here is offline   Reply With Quote
Old Jul 11th 2013, 10:05 AM   #3
MBW
Senior Member
 
MBW's Avatar
 
Join Date: Apr 2008
Location: Bedford, England
Posts: 668
I am not familiar with this method.
Do you perhaps calibrate it with known fluids?

If so then I'm guessing that the difference in flow-rate needed to maintain the same temperature gradient for different fluids will be a measure of the differences in Specific Heat Capacity of the different fluids.
MBW is offline   Reply With Quote
Reply

  Physics Help Forum > High School and Pre-University Physics Help > Thermodynamics and Fluid Mechanics

Tags
barnes, callender, continuous, flow, method



Search tags for this page
Click on a term to search for related topics.
Thread Tools
Display Modes


Similar Physics Forum Discussions
Thread Thread Starter Forum Replies Last Post
whammer method of characteristics reistyle Thermodynamics and Fluid Mechanics 0 Apr 22nd 2016 01:37 PM
deflection od continuous beam psyclone Advanced Mechanics 3 Apr 20th 2015 08:20 AM
controlling the inlet flow and outlet flow simonsam86 Thermodynamics and Fluid Mechanics 5 Sep 1st 2009 03:39 AM
Which method? Morgan82 Kinematics and Dynamics 1 Sep 22nd 2008 04:02 PM
No parallax method werehk Light and Optics 2 Sep 19th 2008 08:11 PM


Facebook Twitter Google+ RSS Feed