The determining factor of whether or not this device was successful was if it was capable of producing 185°F water at a 0.5GPM flow rate. However, in brewing there are a multitude of water temperatures needed throughout the process. Strike water (initial mash) will be hotter than the sparge water (rinsing water) and the sparge water will be hotter than the cleaning water. Knowing that the device was able to reach the 185°F threshold, test were conducted to measure the flowrate/ delta T capabilities of the water heater. The following is a chart of the results.

 

Inlet Temperature                             Outlet Temperature                          Flow Rate

        55°F                                                        210°F                                    .35 gpm

        55°F                                                        185°F                                    0.5 gpm

        55°F                                                        160°F                                  0.75 gpm

        55°F                                                        130°F                                    1.0 gpm

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This test was conducted by changing the discharge flow of the system while maintaining a consistent burn rate. The system was allowed to stabilize for two minutes to ensure proper readings. The flow rate was measured by the inline flow meter and the discharge temperature was measured by an inline thermometer. Since this test was a qualitative test and not a quantitative test, there really was not any pass or fail criteria. The numbers above are acceptable numbers (flow rates and temperatures) for processes seen during a brewing system.

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