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Heat recovery

HEAT RECOVERY SYSTEM

Reducing energy costs and CO2

In a market with ever increasing energy prices and stricter requirements for CO2 emissions, it is important for us to look for and emphasize other ways to recover energy from flue gases, steam and other processes that are generated during combustion. Therefore, we consider heat recovery to be economically advantageous in terms of saving and utilising energy from heat generating processes that would otherwise escape through the flue and chimney directly into the atmosphere.
The recovered heat can be used for heating buildings, domestic water or for other purposes in production areas. Or, if there is an option, return the energy to the provider.

Reduction of fuel consumption

The energy loss from flue gas or other thermal process is typically around 15 – 20%. With an exodraft heat recovery system, up to 95% of the heat can be recovered. In other words, there is a potential for a reduction in fuel consumption of up to 12 – 16% and a reduction in CO2 emissions. Exodraft’s solution offers efficient heat recovery with a combination of competitive pricing and an attractive payback period for your investment.

Customized Calculations for Your Business

With our exodraft OptiCalc HR™ simulation software, we can offer you a specific calculation of how much energy your company can save by investing in an exodraft heat recovery system. The exodraft OptiCalc HR™ simulation software also provides information on the reduction of CO2 emissions as a result of the implementation of a heat recovery system.
 

Examples of completed projects where the investment pays off

From examples of several installations and projects across Europe, we list the industry sectors where the installation pays off in terms of the amount and temperature of the heat removed due to the production processes. We note that previously the heat would have been removed through the ‘stack’ to the atmosphere without further use, with the consequence of increased CO2 emissions. 
 

Sector
Industry

Daily Operation
h

Days of Operation
for year

Savings
kW/​​h

Flue Temperature
°C

Exhaust Gas Flow
m3/​​h

CO2 
(kg/​​year)

Return on Investment
ROI — years

 
Zinc Plant

24

365

52,5

170

2682

41,433

1,7*

Powder Coater

16

280

165

408

3552

63 012

2,9*

Zinc 2

24

365

62

160

4922

73 830

0,6*

Bakery

24

360

190

260

3200

23,941

3*

Launch, paint drying

16

250

120

210

2400

9607

1,2*

Bakery 2

24

360

110

240

2500

37,500

1,2*

*gas price 0,21 euros / kWh
 
 

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1) Safe 80 heat recovery unit

2) Heat generation process, e.g. Boiler, engine, oven, dryer

3) Stack fan to ensure optimum draft and perfect production results

4) Hot water storage tank

5) Circulation pump

6) 3‑way mixing valve

7) Integrated bypass

8) Compact heat exchanger



Where can heat recovery be used?




Where can the recovered energy be used?