Using the Energy Monitoring Company combined analogue and digital 12 channel data-logger and Titan sensors we get the data down to 1 minute readings that are uploaded to the Platform dashboard every three hours – so it’s pretty much live – as much as it needs to be because it’s not for a control system but for evaluation.
The parameters being monitoring by us are:
- The supply air temperature to the heat exchanger
- The post exchanger air flow temperature
- Air flow velocity
- Internal house temperature
- External temperature
- Internal humidity
- External humidity
- Internal CO2
From these readings we can then calculate the:
- Air Changes per Hour (ACH)
- Volume Flow Rate (VFR)
- Heat Transfer Efficiency (HTE)
We built a really cool interactive graphing program which allows clients to design their own graphs. They can choose to display data as lines, columns or areas in a colour of their choice. And data can be graphed over any timeframe – for example 10 minute chunks over the past 3 days, or hourly over the past 6 months. They can create and download as many bespoke graphs as they want. Click graphs to enlarge
The graphing visuals we’ve used acknowledge Edward Tufte’s “The Visual Display of Quantitative Information”.