On the thermal balance issue of heat transfer oil
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As the title suggests, how should the thermal balance of heat transfer oil be calculated... (1) Calculate the calorific value of the heat sources (coal, fuel oil)； (2) Calculate the heat consumption of each user of the heat transfer oil. So how should the thermal efficiency be calculated?
The value of the heat source is easy to determine; one can calculate the average fuel consumption per hour and then multiply it by the calorific value. As for the user’s consumption, that depends on the circumstances What is it used for, exactly? Then a one-to-one ratio will do
You should take a look at Chapter 17 of this book, \"Handbook on the Design of Chemical Industry Furnaces – Design and Calculation Examples\"! ! !
We use heat transfer oil as a heat source to generate steam, and it’s also used for heating purposes. How should these things be calculated?
Measure the circulation flow rate V1 of the heat transfer oil, as well as the oil temperatures at the inlet and outlet, T1 and T2. Look up the specific heats of the heat transfer oil, C1 and C2. Then, Q1 = (C1T1 – C2T2)V1. Measure the amount of vaporized fluid, M, as well as the temperature of the liquid at the inlet, T1, and the temperature of the steam, T2. Look up the enthalpy values C1 and C2; Q2 = (C2T2 – C1T1)M. The thermal efficiency is given by Q1/Q2
Thank you. Also, how should the heating heat from water and gas heating be calculated?
It can be analogized to heat transfer oil; by calculating Q, the heat amount can be determined
However, I can’t determine the temperature of the water in the heating system. Is it possible to calculate it based on the heating area and the indoor temperature?