Going Green: Water and Heat. Heat Pump Harvesting Nature’s Energy. With the aid of a heat pump, at least some of this natural energy can be harvested and utilized as heat for domestic hot water and central heating. A system of this kind is, in any case, always useful.
Water and Heat
Heat PumpHarvesting Nature’s Energy
With the aid of a heat pump, at least some of this natural energy can be harvested and utilized as heat for domestic hot water and central heating.
A system of this kind is, in any case, always useful.
Heat recovery works even at outside temperatures far below zero.
Calculated over the year as a whole, nature will generally “reimburse” you most of your conventional heating costs.
The environment is full of energy.
You have to go as unbelievably low as
-273 deg. C before every last bit of energy has been extracted.
Stiebel Eltron Factory locates in Holzminden, Germany)About Stiebel EltronWe have the energy to change things
(gaseous process medium/refrigerant)
Liquid line (liquid process medium)
A Simple Principle
>>1. A Cooled, liquid refrigerant is pumped into the heat pump heat exchanger (evaporator) There is absorbs thermal energy from the ambience as a result of the temperature differential. In the process, the refrigerant then changes state and becomes a gas.
>>2.The gaseous refrigerant is then recompressed in the compressor.
The pressure results in a temperature increase.
>>3.A second heat exchanger (condenser) transports this thermal energy into the heating system and the refrigerant reverts to a liquid form.
>>4.The refrigerant pressure is reduced again in the expansion valve.
3 + 1 = 4
In theory, heat output=heat abstracted + power input
Co-efficient of performance (COP) is an evaluating indicatorof heat pump’s efficiency
COP=Heat output/Power input=Q0/P0
At the same heat output, a heat pump with high COP means more energy saving.
How to judge COP?
Air as the heat source– air/water heat pump
Air Source Heat Pump Installation at a Garage
Red Dot Design Award
The Red dot design award is a large and coveted international
product design prize awarded by the Design Zentrum Nordrhein Westfalen
The aim of the prize is to honor outstanding design quality and trendsetters.
Winning products are presented in the red dot design museum on the premises
of the Zollverein World Cultural Heritage site in Essen.
iF Product Design Award
The iF Product Design Award was introduced in 1954 and is annually
conferred by the iF International Forum Design. Along with the red dot design
award it is the most important international product design award.
Every year it attracts more than 2,000 product entries from around 37 nations,
which are judged by renowned experts, with the best of them receiving an iF
seal of outstanding design quality. The best of the best are awarded with an iF
gold award, known as the "Design Oscar".
The Design Award of the Federal Republic of Germany is the country‘s highest
distinction in the field of design. It is known as the »Prize of Prizes«. The reason:
no other design award sets such strict criteria on entries. Thus, a company can
only enter the competition for the Design Award if its product has already been
awarded a national or international design prize. Another precondition for entry is
that companies must have been nominated by the Ministries and Senators of the
Federal States or by the Federal Ministry of Economics and Technology.
Design Plus Award
The Design Plus award, presented by a distinguished jury in conjunction
with the Ambiente international consumer goods trade fair in Frankfurt, stands for
product design which is not merely an end in itself but instead very much
exemplary and trend-setting.
Obserceur Design Award
Each year, the Observeur selects more than 150 outstanding products from
our everyday environment designed, manufactured or marketed in France. The
selection covers consumers goods, packaging, graphic and commercial design.
This selection has received international recognition and the Observeur is
endorsed by ICSID.
Air to Water
WWK 300 A/AP
Hot air inCross-section Diagram
Electric booster heater – reduce the heat-up time during peak demand
300l water tank – delivers in excess of 500l of 40oC domestic hot water
All data acc. to EN 255 part 3
COP, A20H70 W20-60
*Water temp. cold = 200C
Ambient temperature = 200C
Warm water volume [Litre]Usable warm water of WWK 300 A/AP
Features in 3D Look
Features in 3D Look
Total water required: 1200 litre at 40℃
(1,080 + 120) x (40℃ - 20℃)/ 857
= 28kW hour
28 x 0.9 x 365
28kW hour / 1.7kW
= 16.47 hours
$9,198 / 3.8
Annual energy saving is around $6,777 vs. traditional electric water heater
(Please note that our heat pump is not running in full gear, saving can be as much as $10k+ a year if it is running 22 hours or above a day)