6560
LOGIN
Hebrew
Toggle navigation
עברית
search
laboratory equipment
balances
measuring meters
material testing
home page
laboratory equipment
Circulators Heaters
Circulators Heaters
Water Heating Time Calculations The specific heat of water is 4.186 J/g°C The equation for calculating the needed energy value for a certain water heating process is: Q=c*m*(dT) c-specific heat (J/g°K) of the heated liquid m- the mass of the liquid that needs to be heated (g) dT- temperature difference during the process (°K) Q- needed amount of energy for the process (J) For example: In order to heat up 200L of water from 45°C to 90°C, we'll use the equation above: Q = 4.186 J/g K *200,000g * 45K = 37,674,000J Conversion of the energy (Q) to power (P): 1 Watt=1 J/s Thus, in order to calculate the time needed for the process (given a heating element of 2000W power) : t(s)=Q/P time=37,674,000J/2000(J/s)=18,837s=313.95min=5.23h=05:14:00 Meaning, it takes about 5 hours to heat up 200L of water from 45°C to 90°C with 2000W heating power. A few examples of the time needed to heat up various volumes of water in different powers: Assumptions: Optimal conditions, no heat is lost to the environment, full conversion of the heating element's voltage into heat. If we were to increase the power twice- the heating time will shorten in half for the same volume, and so on.
Water heating time calculating
MORE ABOUT Circulators Heaters
CLOSE
58227
Your Choice:
products
filter:
Temperature Range [°C]
ambient to 100°C
Ambient + 5°C - 95°C
Immersion Min./Max (mm)
60/155
/176
/170
/150
/130
CP-13_
Circulation pump 13l/min,13cm depth
1
CP-17
Circulation pump 13l/min,17cm depth
1
TEPS-1
Analog immersion heater+ circulation pump + safety
1
TEPS-2
immersion thermostat
1
TEPS-4_
Digital immersion heater+ circulation pump + safety
1
TEPS-4-3KW-D350
DIGITAL IMMERSION THERMOSTAT+SAFETY
1
TEPS-V-6
DIGITAL IMMERSION THERMOSTAT+SAFETY
1
TRPS-4
DIGITAL IMMERSION THERMOSTAT+SAFETY+VARIABLE FLOW
1