Note: Building model is based on a small single space building, floor area is 21m2, walls are 600mm thick stone with plaster on hard, 100mm insulation in roof, roof lights, solid floor. See details and picture here. The radiator model is based on the heat output of the dimplex smartrad at a Delta_T of 25K (1400W). For the output of this application to be relevant the building model, radiator and heatpump model parameters need to be taylored for the building being explored. At present the results of this application should be taken as a concept, the accuracy of it needs to be tested properly (which is the next step). But it does illustrate some of the core cocepts of a heatpumps operation.
Theory: Building model, Radiator model, Heatpump model
See also: Gas or electric heating period explorer
Axes: First axis on the left is flow temperature, second axis is COP and third is indoor and outdoor temperature
| Average heatpump COP: | ||
| Average heatpump electrical input: | W | |
| Average heatpump heat output: | W | |
| Average internal temperature: | C | |
| Average internal temperature when heating is on: | C | |
| Average internal temperature during occupancy period: | C | |
| Average outside temperature: | C |