Calibration Results + Heat Equations

A project log for Isothermal Calorimeter

This project is a Heat Conduction Isothermal Calorimeter based on the designs of Dr Lars Wadsö, Sweden.

Ahmed Hefnawi (Volta) • 04/18/2015 at 02:41•0 Comments

Calibration Coefficient as well as baseline was calculated using the calibration procedure explained in the previous log.

$\color{White} \large \color{White} \large \varepsilon = 21.707, U_{bl} = 62.50 \mu V$

Next, I'll start calculating the heat of hydration for a cement sample with the help of a PhD student at my University.

$\color{White} \large U(t\big) = U(t\big) - U_{bl}$

$\color{White} \large P \big(t\big) = \varepsilon . U(t\big)$ $\color{White} \large Q= \int_{t=t_{i}}^{t_{f}} P . dt$ $\color{White} \large Q \big(t_{f}\big) = \frac{Q}{m_{c}}$ Where,

U: Calorimeter Output in Volts (V)

P: Thermal Power in Watts (W)

Q: Heat Produced in Joules (J) or J/g

mc: Cement Weight in grams (g)

The duration of the experiment will be 3 days.

Also the calorimeter readings are logged every 5 seconds onto the microSD card.

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Calibrating the Calorimeter

04/08/2015 at 16:07 • 0 comments

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NaHCO3 Raw Readings

04/18/2015 at 20:04 • 0 comments

Calibration Results + Heat Equations

Calibrating the Calorimeter

NaHCO3 Raw Readings

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