Homecham – novel kind of heat pump
Solved problem
- A sharp reducing of thermal power and energy efficiency ratio (COP) of existing heat pump at low outside temperatures;
- Difficulty and even inability to achieve temperature of 55 Celsius (border temperature of Legionella) in the reverse water heating reservoir in winter period;
- High energy costs (sometime, more than 30% of total energy spending) frosted evaporator thawing;
Because low efficiency of existing heat pump an limitation of electricity infrastructure consumer should use a fossil energy sources.
The opportunity
Heat pump with high COP in negative temperatures. Our heat pump Homecham based on multi cascade technology will open 4-7 billion dollar annual niche at heat pump industry to markets such as North USA, Canada, Russia, and Scandinavia.
Our simulations show that we will save more than 31% in Helsinki , 35% in Quebec or 45% in Moscow. As well, our heat pump can work in warm climate providing energy saving of 15%-20%.
Homecham is perfect solution for water heating for hospitals, hotels and nursing homes. Existing heat pump cannot heat a water to very high temperatures without existing support like waste heat. Our heat pump can provide a very hot water with minimum energy expense.
Innovative multicascading heat pump by NAM-technology ltd
Air to water model (air source)
Nominal heating capacity………………………….………………………………………. 40 kW
Heated water temperature ……………………………………………………….………. 30 - 80°С
Outdoor temperature ………………………………………………………....……………... -30 - 40°С
Supply voltage ………………………………………………………….........…………………….... 3*400V / 50Hz
Nominal power consumption ……………………………………….………………….. 12,5 kW
Maximum power consumption ………………………………………………………... 18 kW
Refrigerant type ………………………………………...................................…………….……R513a/R515b (low GWP)
COP at 8°DBT/7°WBT air and 40°/45° water temperature ….……4.1
COP at 8°DBT/7°WBT air and 55°/60° water temperature ….....…3.0
Dimensions of the indoor unit (L*W*H) …………………………..............….… 1250*70*1500 mm
Dimensions of the outdoor unit (L*W*H) …………………..…………............ 2400*740*540 mm
Indoor unit weight (dry)……………………………….......…………………………...……… 410 kg.
Weight of the outdoor unit (evaporator)……………………………………………150 kg
Automatic evaporator defrost ……………………………………………................…….electric heaters
Main components
Main compressor ”BITZER” semi-hermetic reciprocating compressor (Germany)
Auxiliary compressor “Copeland” hermetic rotary compressor (USA)
Electronic programmable logic controller “EVCO” (Italy)
Electronic expansion valves ”EMERSON” (USA)
