Measuring heat/energy injected into an asphalt storage tank
Measuring heat/energy injected into an asphalt storage tank
(OP)
thread391-125441: Bitumen tank - Heat transfer rate
We are trying to come up with a way to accurately measure the amount of heat/energy that is expended in heating asphalt tanks within our bulk terminal, so that we can account and bill our various customers for heat. We are heating the tanks with a thermoil system consisting of one hot oil heater connected to circulation pipeline loops in each tank. Has anyone had experience with this, or can possibly direct me to a company that provides a solution. We are thinking that we can meter the flow through each tank as well as the input and outflow temperatures which would be sent to and recorded by a computing device that would also calculate the heat (loss?)to arrive at a consumption amount. We thank you in advance for your ideas and input!
We are trying to come up with a way to accurately measure the amount of heat/energy that is expended in heating asphalt tanks within our bulk terminal, so that we can account and bill our various customers for heat. We are heating the tanks with a thermoil system consisting of one hot oil heater connected to circulation pipeline loops in each tank. Has anyone had experience with this, or can possibly direct me to a company that provides a solution. We are thinking that we can meter the flow through each tank as well as the input and outflow temperatures which would be sent to and recorded by a computing device that would also calculate the heat (loss?)to arrive at a consumption amount. We thank you in advance for your ideas and input!





RE: Measuring heat/energy injected into an asphalt storage tank
flow*density*heat_capacity*temperature_change = power
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RE: Measuring heat/energy injected into an asphalt storage tank
since the thermal oil is heated by means of burning fuel(I assume),and the outlet from the boiler goes to all the different billing points, you only need to know the flows.
For a billing point, the cost can be calculated:
(installation cost + running cost + fuel cost)/invoice billing point = sum off all billing points thermal oil flow / one billing point thermal oil flow
RE: Measuring heat/energy injected into an asphalt storage tank
RE: Measuring heat/energy injected into an asphalt storage tank
The integral of that calculation over time will be the heating provided by your system.
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: Measuring heat/energy injected into an asphalt storage tank
RE: Measuring heat/energy injected into an asphalt storage tank
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: Measuring heat/energy injected into an asphalt storage tank
If I have understood your problem, you are not trying to evaluate the efficiency of your asphalt heating process, so you don't need to calculate the heat loss involved.
You know the flow and the temperature your hot oil must have to reach your goal (asphalt heated), so what matters here is how much you spend (fuel, electric energy) to obtain the required conditions for hot oil.