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The hot-water ORC uses as a source of thermal energy waste hot water from industrial processes. The matter of fact is conversion of flue gases or steam into water usable in the ORC system by installing a specific type of exchanger. .
We can view the hot-water ORC as a very effective cooler. It can be used everywhere where
residual heat is frustrated into the surroundings, either they are flue gases, steam, or hot water.
In the ideal case, the ORC system also saves costs of possible existing operation of the cooling system where it concerns such operations when it is necessary to cool down technological water in the process by a specific difference of temperatures – delta T. When designing the system of the hot-water ORC, not only the value of output electric energy is solved, but just also the difference of temperatures of input and output water from ORC. The fact is that by the correct designing of the system it is possible to achieve high savings in the operation of the existing cooling.
The relation of the parameters of hot water entering as a medium into ORC to the production of electric energy is shown in the following graphs – an example of the Electratherm technology:
WE OFFER THESE PRODUCTS
ORC POWER+ PM75, 6500B, 6500B+
The Power+ units are able to use heat sources from 70 ° C and generate up to 125 kWe.
The Power+ generator using organic Rankine cycle together with patented technologies -
double helix, converts sources of low-temperature heat and waste heat into electricity
without additional fuel consumption or emissions. Heat sources with a higher temperature higher than 150 ° C - for example thermal oils and exhaust gases can be used with the use of an additional heat exchanger.
Technologie Power+ PM75
Bitzer expander, double helix patent
Technology SMART POWER ORC
Thanks to the integration of the BITZER semi-hermetic expander, ElectraTherm's ORC solutions represent a dramatic shift away from turbine technologies. The expander not only provides a more cost-effective and robust design that significantly increases reliability, but also has much lower operating speeds that allow for "wet" two-phase flow.
As a result, the expander is better equipped for transient operation, which allows the system to reliably generate energy from heat sources with temperature and flow fluctuations. ORC systems from ElectraTherm based expander are more ideal for variable heat sources with lower temperature compared to turbine based systems.
The new expander from the parent company ElectraTherm - BITZER ensures smooth operation and absolute reliability.
POWER+ PM75 is a smaller series ideal for heat output up to 1250 kWth. Generates up to 75 kWe. 
POWER+ 6500 / 6500B+ - is a larger range ideal for heat output up to 2,200 kWth. Generates up to 125 kWe.
Capacity parameters
| PM75 | 6500B | 6500B+ | ||||
| device capacity | output power | kWe | až do 75 | až do 125 | až do 125 | |
|
heat source conditions |
thermal input | kWth | 300 - 1250 | 400 - 1700 | 400 - 2200 | |
| hot water temperature | °C | 65 - 132 | 70 - 132 | 70 - 150 | ||
| hot water flow rate | l/s | 3 - 23 | 3 - 25 | 3 - 25 | ||
|
condensing conditions |
heat rejected | kWth | 300 - 1200 | 400 - 1600 | 400 - 2000 | |
| cold water temperature | °C | 10 - 65 | 4 - 65 | 4 - 65 | ||
| cold water flow rate | l/s | 6 - 26 | 9 - 26 | 9- 26 |
* Heat sources with a temperature higher than 150 ° C - such as thermal oils and exhaust gases - can be used using another heat exchanger.
Process
Technical specifications
| Construction | ||
| Installing refrigerant | built according to standards ASME and CE | |
| Energy block | patented twin screw expander | |
| Generator | asynchronous | |
| Heat exchanger | compact, brazed board construction | |
| Lifespan | 20 years | |
| System description | ||
| Operating fluid | pentafluoropropane (nonflammable, nontoxic, not harming the ozone layer) | |
| Heat source | hot water from 70°C to 150°C flue gas from 150 °C |
|
| Cooling requirements | water temperature 4°C to 65°C | |
| Control | common management software / standard programable logic controller | |
| Remote monitoring | internet | |
| Operation | designed for unattended operation | |
| Sound pressure level | 80 db at 1 m; optional silence; <72 db at 1 m |
Possible configurations of POWER+ DEVICE
Freestanding
20 ft. ISO frame
40 ft. ISO frame
Advantages of the POWER+ series
Utilizing the technologies:
For more information, visit www.electratherm.com - Power+ generátor
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The ORCAN technologies focus on a wide range of the ORC systems, from the smallest ones (5 kW) up to bigger ORC systems producing 300 kW of electricity. Another flagship of this company includes zero energy consumption coolers - ORCAN cooler.
Tens of installations of these units all over Europe are evidence of first-rate quality of German technology. The supplier of expanders for ORC is the company Bitzer – the world number one in the field of producers of compressors.
ORC system efficiency PACK NT:
Our solution for low temperatures: at the input output from 180 kWth the installation of the equipment efficiency PACK NT is ready in several simple steps. It integrates efficiency PACK NT in the best place of your system. The equipment efficiency PACKNT has an integrated pump for volume discharge flow between 10 and 18 m3 / h.
|
Temperature of water at input [°C] |
Temperature of heat water at output [°C] |
Volume discharge [m3/h] |
Quantity of heat [kWth] |
Net output [kWel] |
Gross output [kWel] |
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80 |
69 |
14 |
177 |
5,9 |
7,9 |
|
85 |
73 |
14 |
199 |
7,3 |
9,3 |
|
90 |
76 |
14 |
221 |
8,7 |
10,7 |
|
95 |
80 |
14 |
243 |
10,1 |
12,1 |
|
100 |
84 |
14 |
266 |
11,6 |
13,6 |
|
105 |
87 |
14 |
289 |
13,1 |
15,0 |
|
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ORC system efficiency PACK 150.200
This ORC series is suitable for using hot water of the temperature of 80 – 145 ˚C and the volume flow of 11 – 14 m3/h or water steam of the temperature of 150 - 800 ˚C. With the maximal input heat of the output of 500 kWth, the ORC is able to produce up to 30 kW of electricity.
efficiency PACK 150.200
ORC system efficiency PACK 050.100
It can use residual heat of engines with the output of 1 – 20 MW with efficiency of 7%. Heat can be taken directly from flue gases (max. 550 ˚C) or from hot water of the maximal temperature of 150 ˚C. This system is able to produce up to 100 kW of electric energy.
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