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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.

Homecham
Homecham

Innovative multicascading heat pump by NAM-technology ltd

Made in Israel

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)

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