HEAT RECOVERY. from industrial processes. Ecological preservation Primary energy substitution Utilisation of waste heat Cost reduction

Transcription

1 HEAT RECOVERY from industrial processes Ecological preservation Primary energy substitution Utilisation of waste heat Cost reduction

2 ECOSTAT: EFFICIENT & GAS TIGHT HEAT TRANSFER ECOSTAT makes use of the waste heat from furnaces to preheat combustion gas & combustion air Temperature Steam Condensate Cold gas fl ow Hot gas fl ow Heat recovery system ECOSTAT forms the core of many of Küttner s solutions. Vertically or horizontally arranged in modules, its heat pipes work independently of each other, every single one representing a closed system of its own. The working medium (e.g., water) in the pipe continuously passes the following steps: evaporation on the hot side upfl ow to the cold side liquefaction on the cold side fl owing down to the hot side Making use of the principle of isothermal evaporation and liquefaction, a homogeneous temperature profi le fi nally appears inside the heat pipe. This avoids the occurrence of cold areas with their inherent risk of temperatures below dewpoint and resulting corrosion. Benefits of ECOSTAT ROGESA, Dillinger Stahlwerke gas-tight pass partition wall high reliability/availability due to independently operating single pipes Combustion gas preheating with ECOSTAT homogeneous temperature profi le across the cold side plain plant geometry, tight dimensions modular concept: easy assembly and inspection no movables, no need for driving energy, no wear parts

3 ECOFLOW: FLEXIBLE HEAT SUPPLY TO ANY CONSUMER Heat displacement and distribution system ECOFLOW serves for the economic and profi table use of recovered energy. Küttner started its development already 35 years ago and has, since then, implemented it in many plants. On demand, ECOFLOW distributes all energy recovered at high temperature levels to any consumer, almost loss-free even across long distances. Rohrdorfer Zement, Rohrdorf (Germany): 3D model of heat recovery plant Benefits of ECOFLOW bridging long distances almost loss-free modular design supplementary integration into existing plants and extensions even in confi ned spaces low capital and maintenance costs high availability increase of plant effi ciency

4 ECOFLOW: COMBINED HEAT & POWER GENERATION Effi cient power generation will be the ideal way if waste heat yields more energy than required for mere heat supply, or if no heat consumers are available. Electricity is produced by employing either the conventional watersteam turbine cycle or ORC (Organic Rankine Cycle) technology. It is possible to customise various combinations of power and heat generation, such as CHP (combined heat and power cycles.) Küttner offers all services spanning design, delivery, assembly up to commissioning as system supplier or general contractor. OMV Weitendorf (Austria): Power generation utilising waste heat from turbines powering gas compressors 8 CHIMNEY 9 WASTE HEAT BOILER 10 SAMPLING (ANNEX TO SUPPLY BUILDING) TURBINE S OFF-GAS 1 AIR-COOLED CONDENSER 2 EXTINGUISHING WATER / WASTE WATER 3 WATER TREATMENT 4 TRANSFORMER 5 TURBINE HALL 6 SUPPLY BUILDING 7 EXHAUSTER

5 UTILISATION OF WASTE HEAT: VISIBLE COM- MITMENT TO PROTECTING THE ENVIRONMENT PILKINGTON HALMSTAD (SWEDEN) Assembly of the plug-in heat exchanger modules Waste heat from industrial processes represents the biggest heat resource. Its thorough utilisation pays in saving valuable primary energy thus reducing CO 2 emissions and conserving scarce and valuable fossil resources. In many industrial plants, Küttner systems have long been well-known for their contribution to drastically reduce primary energy consumption. Note, e.g., the preheating of fuel media by waste heat recovered from steelwork s hot blast stoves. Glass and cement factories, chemical and food industries as well as foundries and paper production provide further fi elds of application. The waste heat is ready to be transformed into process heat and electricity as well. Industrial off gases to power transformation by employing steam turbines already pays with combined heat and power generation ranging between 2 and 20 MW. For lower power ranges, ORC (Organic-Rankine-Cycle) is best choice. The off-gas from gas turbines in natural gas compressor stations is predestined for combined heat and power generation. Even with existing plants, the modular design allows easy installation and extension. Additions to capacity thus become smooth and unproblematic. Low wear and savings in primary energy result in marked cost reductions during ongoing operation. Many systems installed have payed in less than 2 years.

6 KÜTTNER ENERGY & ENVIRONMENT GMBH Subsidiary of Küttner GmbH & Co. KG A globally acting group of companies has developed from the engineering company once founded in 1949 by Dr. Carl Küttner. Nowadays, their main focus is on building turn-key plants for the iron & steel producing industry, foundry and NF (non-ferrous) industry, especially in the fi elds of process and smelting technology, materials handling as well as of energy and environmental technologies. Küttner Energy & Environment is one of the leading global players in developing and implementing innovative and sustainable energy and environmental technologies gaining savings in energy, reductions in environmental impacts and optimising material cycles. Our scope of services comprises the design and engineering, construction, delivery, assembly, as well as the startup and commissioning of the entire plant including control system and data processing. Küttner systems can be found in almost all sectors of industry. Worldwide personnel of Küttner-Group counts more than 650 employees, their owners themselves being active within the company. Recooling plant at blast furnace 8 of TKS, Duisburg Küttner Energy & Environment GmbH Tel. +49 (0) kee@kuettner.com Alfredstr Essen Fax +49 (0) e 04/12