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Heat Pump
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The "Drop-In" Residential Heat Pump Water Heater

A market-driven solution to efficient electric heating, The Problem: How to Convince Consumers to Save Energy in Water Heating

About half of all domestic water heating is done with electric resistance storage water heaters. The most efficient resistance water heater has an energy factor (EF) of 0.95, only 5% below the maximum efficiency possible for that type of water heater. Yet by using electricity to "pump heat" from the surrounding space, the residential heat pump water heater (HPWH) can attain much higher efficiencies, reducing the electricity needed for water heating by at least half.

Despite such high efficiencies, today's U.S. market for residential HPWHs is small and stagnant (less than 2,000 units/year) and is served by only two or three manufacturers.

Why has the HPWH market remained small?

 Assessments conducted by DOE and others point to a number of issues:

Economics — High first cost, leading to long payback time.

Reliability — Failures of early models created a poor reputation for the HPWH.

Maintenance — Service infrastructure lacking; specialized training and familiarity are required.

Installation — HPWHs not well-suited to universal installation; easier to replace like-for-like.

Awareness — Customers not aware of HPWH benefits; few have even seen one.

The Solution: The "Drop-in" HPWH

Building from a strong understanding of these technical and market issues, Enviromaster International (EMI) and Arthur D. Little, with support from the DOE ENERGY STAR Program through Oak Ridge National Laboratory, are developing a unique "market-optimized" ambient-air HPWH aimed at the large electric water heater replacement market.

Design Features

A full "drop-in" replacement for 50- or 80-gallon electric water heater — same footprint as the original water heater, an identical electrical hookup, no need for additional plumbing, and no condensate drain required

Uses refrigeration compressor — robust, proven, inexpensive, small, yet with sufficient capacity for meeting most water heating demands

Uses no water pumps

Employs a conventional hot water tank; no additional penetrations

Will work anywhere that a conventional resistance water heater will work — basements, closets, garages, conditioned spaces

Designed for installation by plumber — no additional skills needed.

Model no.:

CARE-43/R

CARE -58/R

CARE -71/R

Rated thermal(W):

4300

5830

7100

Production of water(L/H):

85

120

170

Against electric shock degree

I

I

I

Protection degree

IP×4

IP×4

IP×4

Heating consumption power(W)

930

1400

1870

Heating inflow current(A)

4.23

8.1

10.8

Exhaust Side maximum working pressure(Mpa)

2.7

2.7

2.7

Inspiratory Side maximum working pressure(Mpa)

0.7

0.7

0.7

Working environment(C)

-10~43

-10~43

-10~43

Rated water pressure(Mpa)

0.6

0.6

0.6

Noise (dB(A))

≤52

≤52

≤52

Power specification

220V~50Hz

220V~50Hz

220V~50Hz

Weight (kg)

30

34

48

Measurement

825×320×550

920×335×585

995×415×680

Matching water tank volume(L)

150

200-260

300

Pressurized water tank volume(L)

150

200

260

Pressurized water tank pipeline length (m)

25

30

32

Pressurized water tank measurement

Φ480×1460

Φ570×1270

Φ570×1600

Rated working environment: when psychro-temperature is 20/15C, water temperature is heated from 20C to 55C

Heat Pump Water Heater
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Solar-Boosted Heat Pump Water Heater

 

A hot water system that is almost twice as efficient as conventional solar water heaters and is able to save upto 75% on energy costs. The Quantum Solar-Boosted Heat Pump hot water heater works on the principle of a refrigeration circuit, drawing heat out of one space and discharging it into another. In this case, the heat is drawn from the atmosphere and conveyed to the water storage tank. A heat pump has two heat exchangers (an evaporator and a condenser) and a compressor which drive the whole process. The evaporator absorbs heat energy from the sun, wind, rain and the air to vaporise the very low temperature refrigerant flowing through the system. This is then compressed, raising the Vapours pressure and temperature. The high temperature vapour is passed through pipes bonded to the outside of the storage tank and heats the water within the tank. The system is so efficient that no gas or electric booster is needed, unlike flat plate solar water heaters, which require a back-up to ensure hot water is available on demand.

 

Heat Pump Air Con
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The collector panel does not need to be facing to the north to collect maximum sunshine because heat energy is extracted from other sources as well as sunlight. Infact, the CARE’s water heater even works at night. The low energy consumption, efficiency, simplicity, low maintenance requirements and long life make the CARE Solar-Boosted Heat Pump hot water heater ideal for all domestic and commercial applications anywhere in the world. The hot water heater market in Indiaexceeds 5,000 000 units a year, of which only 5% are regarded as energy efficient. The worldwide market is likely to require upwards of 5 million water heaters each year.

There is an ideal business opportunity for joint venture partnerships with CARE’s because the technology is easily transported, and the manufacture of the finished product does not require high levels of capital investment. Facilities using this CARE’s technology are already in place in Asia, Italy and New Zealand. Several prestigious industry awards have been received by CARE’s for the innovative design of their water heater including the 1988 National Energy Innovation Award for Outstanding Achievement in Innovation Energy Production R&D. Energy, water management. Runs on non-conventional energy Innovative technology already 

 copyright 2007 @ CENTRE FOR APPLICATION OF RENEWABLE ENERGY