9-11 MARZO 2008 COGENERATION AND THERMAL RECOVERY

9-11 MARZO 2008 The combined production of electricity and heat is applied both in the industrial field, especially a craftsman, both in civil. The heat, to avoid excessive costs and losses, it can not be transported long distances, is used in the form of steam, hot water / thermal oil or hot, for purposes of civil or industrial process (eg district heating networks through district heating, cooling partecipates © by absorption systems), while the electricity, which can count on an extensive distribution network, is self-consumed or fed into the grid. The privileged users for cogeneration are those characterized by a fairly constant demand for heat and electricity, such as hospitals and nursing homes, swimming pools and sports centers, shopping centers as well as food industries, paper mills, industries related to refining petroleum and chemical industries etc.... COGENERATION

9-11 MARZO 2008 In the case of uses of civil type, including the space heating or district heating, heat is generally produced at relatively low temperature and the carrier fluid of the thermal energy is predominantly water. In the case of industrial use, heat is generally produced at room temperature and higher pressure. There are situations mixed, in which there is production of heat at various levels of temperature and pressure. In such cases, usually, there is a single point of use (for example, an industrial plant), where the heat is intended for fine machining, while at lower temperature is intended for the heating of production environments

9-11 MARZO 2008 In some industries the combined production of electricity and heat production is already well-established that an option may take an even more significant weight in terms of contributions to the national electricity demand for energy efficiency. The CHP proves a perfect choice for the simultaneous production of electricity and heat in many industrial sectors, particularly for those companies' energy-hungry "that constantly require significant production of heat and use large shares of electricity. For his technical ability, application and performance of cogeneration is an 'excellent opportunity to reduce energy costs for businesses. And 'it can self-produce electricity at prices lower than market prices and at the same time provide thermal energy to be introduced in the chain.

9-11 MARZO 2008

FOOD INDISTRY METALLURGIC BEVERAGE HOTEL, RESORT MILK AND CHEASE HOSPITAL AND COMMUNITY CHEMICAL FARMACEUTICAL PAPER MILLS PLASTIC CERAMIC AND BRICKS DISTRICT HEATING TEXTILE OIL & GAS GLASS AGRICULTURAL SOME INDUSTRIAL APPLICATION FIELDS:

9-11 MARZO 2008 GARIONI NAVAL AMONG THE MOST IMPORTANT PLAER IN HEAT RECOVERY SYSTEM The Garioninaval Spa, the experience gained in two decades of experience in the shipbuilding industry, is able to design and build a recovery boiler to position downstream of the combustion engine operating with different fuels such as methane, LPG ​​, diesel, biogas or vegetable oils. Depending on the industrial application in which is inserted the cogeneration plant personnel technical / commercial GARIONI NAVAL is able to identify the best type of recovery boiler be it fire tube or serpentine: NG-EG: recovery boiler smoke tubes for steam production EG-AC-NG: recovery boiler fire tube hot water production NG-EG-AS: recovery boiler fire tube hot water production GMT-EG: recovery boiler to produce steam coil GMT-EG-AC: recovery boiler to produce hot water coil GMT-EG-AS: heat recovery coil for hot water production TH-EG: heat recovery coil for thermal oil

9-11 MARZO 2008 To complete the offer and / or supply the Garioninaval is able to provide the customer with a range of accessories of the heat recovery group such as, for example: - DAMPER by-pass fume - TUBING complete by-pass fume - ECONOMIZERS and / or super heaters.... …

9-11 MARZO 2008 A NEW AND DEVELOPING SECTOR Analyzing the boilers made ​​ by GARIONI NAVAL last decade, we see continued growth and linear in this type of boiler, undeniable sign that the energy market has found a winning solution for cogeneration to the continued growth of consumption of energy, both electrical and thermal, business and the simultaneous reduction of operating costs to make themselves competitive in the market challenge, now global, in which they compete

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9-11 MARZO 2008 SMOKE TUBE EXHAUST GAS STEAM BOILERS

9-11 MARZO 2008 PARTNERSHIP WITH EPC CONTRACTORS The objective of the technical GARIONI NAVAL SPA and create a series of partnerships with manufacturers of cogeneration systems to collaborate in the drafting of the project, implementation of automation for a good end result and customer satisfaction

9-11 MARZO 2008 TRIGENERATION : A MODERN TECHNOLOGY Trigeneration is a specific field of cogeneration systems that, besides producing electricity, you can use the waste heat energy from the cogeneration system for producing cooling energy, ie chilled water for air conditioning or industrial processes. A tri-generation system, as illustrated in the figure, is an energy system consisting of a cogeneration plant whose useful thermal energy is used, in whole or in part, to produce, by means of absorption refrigerators, chilled water for air conditioning or industrial processes. In other words, the exploitation of the useful heat produced by the cogeneration also for cooling allows to maximize the exploitation of thermal energy, making it convenient to use the plant for a greater number of hours per year.

9-11 MARZO 2008 The transformation of the thermal energy into cooling energy is made possible by the use of an absorption refrigeration cycle, whose operation is based on the transformation of the state of the refrigerant fluid in combination with the substance used as absorbent. The main pairs of refrigerant / absorbent used are water / lithium bromide and ammonia / water. Compared to the generation of electricity only, in a regeneration system of the overall performance increase is exploited because a greater percentage of the calorific value of the fuel. There is also to be considered that the conventional thermoelectric plants convert about 1/3 of the fuel energy (the rest is lost to heat), while in a plant regenerative more than 4/5 of the same energy is exploited, since the heat is recovered directly (operating CHP) or as a source for an absorption refrigeration (trigeneration vehicle is running)

9-11 MARZO 2008