Quantified Analysis —

Quantify and pinpoint energy loss and determine payback and ROI for improvements

Quantified Analysis —

Quantify and pinpoint energy loss and determine payback and ROI for improvements

QEA Tech Energy Audit Software Introduction

1. Main Menu

Figure 1, provides access to different images to be analyzed and also provides access to different analysis tools.

The main window allows the user to perform the following tasks:

  • Change the palette that the image is being displayed in, enabling customized contrast and color palettes to fit customer’s specifications.
  • Change the range of the thermal image, enabling the user to thermally tune the image to specific requirements customized for each customer.

The main window displays three different views of the target structure: infrared, MSX and visual. The infrared image shows the thermal signature of the target structure based on the selected color palette and the designated thermal range. The visual image illustrates the target structure as seen by the naked eye in visual spectrum. The MSX image displays a multi-spectral dynamic image, combining the visual characteristics and thermal signatures of the structure.

Figure 1: QEA Tech Solutions’ Main window

2. Automatic Leakage Detection (ALD)

ALD window, as shown in Figure 2, provides an analysis platform to detect different leakage areas. In this window, the user can still switch between different images and color palette settings available, allowing the user to observe the analysis results in various formats.

The ALD window allows the user to enter lower and upper bands in which the ALD operates. These ALD bands can be entered in one of the two following formats:

  • The bands can be entered in degrees of centigrade format, dictating the lower and upper bands as degrees of centigrade where analysis is performed based upon.
  • The bands can be entered as a percentage point based on the available thermal range, allowing the analysis to be range-dependent.

Automatic Leakage Detection tool provides three different images, each one indicative of different heat leakage levels detected from the image. Each of the different leakage categories of the image, labeled as Low, Medium and High leakage areas, have a percentage point associated with them indicating the percentage of the image that each leakage level contains. High leakage areas are usually the most problematic in building envelope energy audit applications.

Figure 2: QEA Tech Solutions’ Automatic Leakage Detection window

3. NegaWatt Calculator (NWC)

NWC Window, as illustrated in Figure 3, provides the necessary analysis tool to calculate the negative watt (NegaWatt) indicating the wattage value being lost as heat loss through the target structure.

The NWC window allows the user to enter reference temperature, structure’s U-value and the area of the structure in order to calculate the negawatt value. This window also enables the user to use the Auto Area calculation capability which will calculate the area that the image covers based on the selected camera’s field of view and distance to target structure.

Moreover, this window facilitates the user to switch between different images and color palettes and view the calculated NegaWatt value and Average Temperature Difference calculated for each image.

Figure 3: QEA Tech Solutions’ NegaWatt Calculator window

4. Statistics

The Statistics window, as displayed in Figure 4, presents various statistics for the image such as temperature values, thermal range values, emissivity, and reflected temperature and so on. This window also presents the analysis results for ALD and NWC.

Figure 4: QEA Tech Solutions’ Statistics window

5. Complete View

This window, as shown in Figure 5, displays the complete view of the analysis performed by the QEA Tech Solutions software.

This window includes:

  • User’s ability to change the target image.
  • User’s ability to change the color palette for each image.
  • Infrared, MSX and Visual views of the target image.
  • Automatic Leakage Detection results as presented in three categories accompanied by the respective percentage point.
  • IQ of the target structure (refer to QEA Tech’s Indexing System).
  • Leakage Area pie chart, indicating how many square meters each heat leakage category contains (indicative of the severity of heat leakage).
  • Comprehensive statistics of the image, containing thermal parameters, GPS coordinates, distance to target and so on.
  • Complete statistics of Automatic Leakage Detection and NegaWatt Calculation results.

Figure 5: QEA Tech Solutions’ Complete View window