- #1

- 59

- 0

I wish to calculate the heat flux on a bottom plate of a hot water tank. Would simply (m*c*t)/area give me the correct results.

Please help?

- Thread starter chetanladha
- Start date

- #1

- 59

- 0

I wish to calculate the heat flux on a bottom plate of a hot water tank. Would simply (m*c*t)/area give me the correct results.

Please help?

- #2

- 688

- 1

Is the bottom plate sitting on the ground or elevated? Is the tank insulated?

- #3

- 59

- 0

Yes the tank is insulated,and sitting on ground.

Now the upper surface of plate is in contact with the fluid (hot water). How can i find the heat flux?

- #4

- 688

- 1

There are some nice "freeware" packages that will compute this. PM me if you are interested.

Yes the tank is insulated,and sitting on ground.

Now the upper surface of plate is in contact with the fluid (hot water). How can i find the heat flux?

If you want to calculate it yourself, do this:

q = U A (T-water - T-outisde)

where,

q = heat loss

U = heat transfer coefficient

A = surface area

T-water = water temperature inside tank

T-outside = outside air temperature.

The heat transfer coefficient is given by:

U = 1 / [ 1/hi + twall/kwall + tins/kins + 1/ho ]

where,

hi = natural convection heat transfer coefficient on inside of tank

twall = tank wall thickness

kwall = tank thermal conductivity

tins = insultation thickness

kins = insulation thermal conductivity

ho = natural convection heat transfer coefficient on outside of tank

Let me know if you need any help figure these values out.

- Replies
- 3

- Views
- 6K

- Replies
- 4

- Views
- 1K

- Replies
- 6

- Views
- 20K

- Replies
- 3

- Views
- 1K

- Replies
- 7

- Views
- 2K

- Replies
- 5

- Views
- 6K

- Last Post

- Replies
- 12

- Views
- 15K

- Last Post

- Replies
- 6

- Views
- 652

- Replies
- 2

- Views
- 507

- Replies
- 8

- Views
- 13K