Optimal combination of an air-to-air thermoelectric heat pump with a heat recovery system to HVAC a passive house dwelling

Next generation of heat pumps for buildings based on thermoelectricity integrated with smart grids

“…As a result of the computation research, this second option (combination of both the heat pump and the heat recovery system) is demonstrated to perform better, since it obtains higher COP values with a significant reduced number of modules. Additionally, this optimized number of modules was demonstrated to be 15 in a second analysis [13] where one passive house (limited to 100 m 2 ) was simulated in three different climates, assuming that the heating demand never exceeds 10 W/m 2 (as stated by the Passivhaus standard). This result is promising as the resulting prototype is viable in terms of dimensions and costs.…”

“…Figure 2. Left: Thermoelectric air-to-air heat pump with a counter flow design divided into a number of modules that goes from 1 to N, which is main parameter under analysis; Right: Detailed scheme of the proposed HVAC systems to provide ventilation, heating and cooling in a Passive House building (heating mode in the picture) integrating the thermoelectric heat pump with an HRU ( ventilation heat recovery system) [13].…”

“…The proposed thermoelectric HVAC system manages to maintain adequate comfort conditions indoor: 20-23 ºC in winter and 23-25 ºC in summer. The system consumes 1143.3kWh/y (15.3kWh/m 2 y) electricity, which can be provided by 4 photovoltaic panels of 250Wp each [14]. These results are then compared with a vapor-compression cycle heat pump (COP2.2-4.5).…”

Maximizing cooling/heating performance of thermoelectric modules across variable thermal loads via optimal control based on COP curves

“…A thermoelectric distillation system was developed for production of drinkable water in the evaporation-condensation process from cooling/heating effects on two module sides [ 5 ]. The heat recovery unit in a thermoelectric heat pump for a passive house was tested for its ability to increases cooling capacity [ 6 ]. Those successful examples indicate that the thermoelectric modules can be applied as compact electric heat-pump devices and/or refrigeration devices.…”

Natural and Mechanical Ventilation Concepts for Indoor Comfort and Well-Being with a Sustainable Design Perspective: A Systematic Review

“…Conversely, the possibility to fully regulate temperature, airflow, and air velocity is a clear advantage of MV, of which performance is perfectly predictable and controllable if compared with NV, with positive implications on the IAQ [25,47,[57][58][59]. The use of heat recovery units can partially overcome the drawback of the larger amount of energy with respect to NV [60][61][62][63]. Finally, HV can be a good compromise between the two techniques, guaranteeing energy savings, but exploiting MV when proper IEQ conditions cannot be met with NV only [29,30,55,[64][65][66][67][68][69].…”