Natural Gas Operated Implementations


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GREY-NGOI


DIFFERENT IMPLEMENTATIONS WITH NATURAL GAS


Cogeneration and Trigeneration: A strong tool for development by using the energy effectively in Kocaeli

Cogeneration is the combination of electricity and heat generation at the same time and in the same process. In common cogeneration factories generally gas turbines and engines are used. It enables the heat that is produced as by-product to be used in useful areas (steam, heating, hot water).

In addition to the heat and electricity production with cogeneration, cooling is performed by using Trigeneration. The electricity and heat are generally used for internal needs and sold to network. As a energy recycling technology Cogeneration contributes directly to environment protection in Kocaeli.


 

KOJENARASYON

Advantages of Cogeneration:

  • Increase in energy usage efficiency
  • Heat efficiency up to 90%
  • Energy saving between 15%-40%
  • Less greenhouse gas emission
  • Increasing competitiveness
  • Increased supply safety



MICRO COGENERATION

Micro-cogeneration: A small but brilliant solution for small businesses and facilities

Micro-cogeneration

Heat and electricity are the most needed energy types in communal living and industry. In our country while heating need is generally supplied from locally founded heating system, electricity need is supplied from a distribution network.

Micro-cogeneration is a system based on electricity energy, of which installed power is 50 k W and below that enables to produce the heat and the electricity at the same time with same appliance. Therefore by saving energy this system performs heating and hot water in winter and at the same time with a extra appliance it performs cooling in summer and it can be transformed to tri-generation easily.



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Usage Areas

It can be used easily in offices, hotels, swimming pools, separate houses, hospitals and restaurants.

RADIANT HEATERS

Do not heat the air unnecessarily, heat yourself

Radiant Heaters

Do not heat the air unnecessarily, heat yourself

Many companies in our city prefer natural gas operated radiant heaters to reduce the heat cost in their facilities or to heat cheaper in their new facilities.

The inspiration for people about radiant heating is the nature. Imagine that you walk around in a cloudy weather in winter and all of a sudden the sun comes through the clouds and it makes you feel warm. The reason of this heat is not the sudden 5-10 °C increase of weather, they are the infrared rays that are reaching you. When the clouds come back this heating will disappear. Radiant Heating Systems are designed based on this idea.

You can save fuel 25-60% !

When the high places are heated by heating the air, heated air rises and the temperature reaches 40 °C in upper sections that don’t need to be heated. At the floor level the temperature is around 12-13 °C. That’s why because of the ceiling and the change of air there are huge energy losses.

In the places that are heated with radiant heaters the air is not heated therefore when air change rates and height increase, energy saving also increases up to 60%.

CASCADE SYSTEM

Cascade System: An effective solution for building and small business heating

Instead of one floor-type condensing boiler, creating a cascade system by connecting more than one wall type condensing boiler in parallel can be more economic up to certain capacities.

The material used in condensing boilers is different than the ones that are used in other boilers. The cost of these materials are higher so the cost gets higher as the boiler gets bigger.

Cascade system eliminates the high cost of big boilers. It is consisted of more than one appliance according to your installation need. Juxtaposed appliances work in modulation. In this system it is possible to run wall-type condensing boiler up to 12 appliances.

The priviliges of condensing cascade systems

  • Operating cost is low thanks to high appliance efficiency
  • It is long lasting with its high technology
  • With wide capacity range it provides the needed capacity. It is suitable for multiple comfort use with advanced control system and it provides maximum saving from fuel.
  • Stopping loss and radiation loss due to low water volume rarely happen.
  • It occupies less place in existing boiler house (it is hanged on the wall), remaning places can be used for other purposes.
  • It is easy to carry and install, there is no need to break the wall.
  • Appliances change a line in 24 hours with this way all the appliances work in equal time.
  • The system is always backed up. If the actual boiler stops due to a malfunction the other one that is connected in parallel is activated and the work does not stop.
  • The cascades which work connected to each other and in proportional control can be more economic than one big boiler in terms of invesment cost. For example instead of one 100kW boiler using 2 cascades of 51kW will cost you less.

Natural gas is used in many areas, it is used as key material even in plastic, fertilizer, anti freeze and textile industry. Natural gas use in industry represents the biggest level with 25% rate. It is the second most used energy source in industry after electricity. Energy is used for lightning in industry which is its main use and this carries electricity need of the sector to the extraordinary levels.

Although the industry forms most of the natural gas consumption these industrials are generally small and medium-scale industrials. It is mostly used in paper, metal, chemistry, oil rafinery, construction, glass and ceramic, plastic and food industries.

Industrial Implementations

Natural gas has many usage areas, it is used for same purposes in residential and commercial areas such as heating, cooling and cooking. It is also used for recycling and waste incineration, metal preheating (especially in iron-steel industry) drying and dehumidification, glass melting, food process and it is used as fuel in industrial boilers. Gases like butane, ethane, propane can be supplied from natural gas and can be used as main raw materials in fertilizer and pharmaceutical industry.

Natural gas is also used as main raw material in methanol production. Synhtesis gas which is consisted of hydrogen and carbondioxide is obtained from natural gas with vapour method. In this process natural gas contacts with vapour and exposed to catalyzator and as a result natural gas oxidation is provided. This synthesis gas becomes available for methanol production and this material is used for MTBE (methyl tertiary butyl ether) production which is used for clean burning of formaldehyde, acetic acid and petrol.

In addition to these usage areas, natural gas has many innovative and special industrial usage areas. Using natural gas in dehumidification systems is making it more popular in plastic, pharmaceutical, sugar and recycling industrials. In each of these industrials humid air causes the final product to spoil. For example humid causes cracks in certain types of plastic production. Using natural gas in drying and cooling process allows the user to adjust the humidity more sensitive and it provides more quality and stable production.

In the whole world, natural gas absorbing systems are widely used in the industry and provide economical efficiency and efficiency in heating and cooling the water.

Infra-red Heating Units

Infra-red heating units provide innovative and economic solution for heat production in industrial area. These systems that have been used a lot provides efficiency with a innovative way in powder coating production systems.  Infra-red heaters use natural gas to use the materials more efficient and faster. Natural gas is worked with ceramic fiber panels that have platin catalyzer and it reacts with oxygen and increases the temperature without creating flame. Natural gas use for industrials provides faster production process and more economic use compared to electricity heaters.

Direct-Contact Water Heater

In this system the energy of the flame that is formed with natural gas burning is transfered directly to the water. These systems are very effective systems to heat to water. Normal industrial heaters work between 60-70% efficiency while direct contact heaters efficiency can reach 99,7% . This provides a great financial advantage for sectors that use hot water frequently.

Industrial Combined Heater and Energy

Industrial consumers take the great advantage from Combined Heat and Power (CHP) and Combined Cooling, Heating and Power (CCHP) systems. For example an industrial facility that generates power can also use the inert heat and vapour for other industrial implementations and also it can be used as energy for heating, water heating and industrial boilers. Since industrials consume big amounts of energy, increase of efficiency will also help them financially. Besides industrial sector is under the pressure of related regulations about hazardous emission values therefore natural gas use will help them to reduce their emission values.

Industrial Double-Burning Systems

These systems increase the energy efficiency and also help to reduce atmospheric emissions. In this system in addition to coal, wood and biofuel also natural gas is used as auxiliary fuel. Besides energy loss occurs in high level and hazardous emission values are very high. With the addition of natural gas to the burning mixture it provides efficiency increase and emission decrease. Natural gas is absolutely has low emission values compared to solid fuel. The energy that will be supplied from the boiler will be fix therefore the more natural gas is added to the burning mixture the lower the emission values will be.

Besides when natural gas is used, operation performance of the boiler will also increase including energy efficiency. For example in solid fueled boilers the energy loss due to the solid fuel that has low calorific value and burning efficiency will be decreased with natural gas addition. This type of systems can also be used in power generation and central power plant.

Natural gas has many use and every day a new use is being added to usage area.  Natural gas is clean, an efficient energy source and also has an important place in Turkey in terms of environment and efficiency.

POWER GENERATION BY USING NATURAL GAS

Natural gas is becoming a popular fuel for power generation thanks to its clean burning structure. Power generation is being leaned on natural gas increasingly for many reasons. Coal is known as the cheapest but dirtiest fuel in power generation and it spreads high amount of contaminant to the air. Power generation industry is polluting the air most among other industries.

Steam-Operated Systems

Natural gas can be used in different ways for power generation. The most common and basic method for power generation by burning natural gas is steam-operated systems and in these systems the steam that is supplied from heated water by burning natural gas moves the turbine and power is generated. Natural gas can be used for this process but coal and nuclear fueled basic units can also be used in these systems. In these systems 33-35% of the caloric energy can be used in steam production and power generation.

Central Gas Turbines

Gas turbines and internal combustion engines can be used for power generation as well. In this type of units, hot gas that is supplied by burning fossil fuel is used to move the turbines. Facilities that have gas turbines and internal combustion engines have primarily used for peak consumption needs because they can be commissioned easily and fast. These facilities have become popular with the development of technology and availability of natural gas. But efficiency of these systems is lower compared to big steam operated systems.

Combined Cycle Power Plants

Distributed Production

Until recently, energy production methods have been dealt with in the context of large, central power plants. On the other hand, the technological progresses in the electricity industry and the amendment of legal regulations have an accurate tendency to be known as "distributed production". Distributed production means the placement of individual, small-sized electricity generation units in residential, commercial and industrial sites. These small-scale power plants, which operate primarily with natural gas, work with small gas turbines or piston engines, or with natural gas fuel cells.

Distributed production can range from low-power generators used to support the supply of electricity from central electric utilities, to large independent generators which has enough power to power an entire plant. Distributed production is attractive because it provides safer, more efficient and cheaper electricity than a centralized supplier. Distributed production allows for increased local control over electricity supply and avoids electrical losses during transmission.

Natural gas is one of the leading energy sources for distributed production. Due to its large natural gas supply infrastructure and environmental advantages, natural gas is one of the foremost preferences for on-site power generation. Fuel cells, gas-powered piston engines, industrial gas turbines and microturbines are all popular applications for on-site electrical needs.

Industrial Natural Gas Fueled Turbines
These turbines work with the same principle with big central gas turbine generators that were explained above. Besides instead of locating in a central plant these turbines are put a near place where the electricity will be used. Industrial turbines generate power by using high temperature, high pressure gas to move a turbine that generates current and they are small sized, light, easy to start and operate. This kind of distributed generation is generally used by hospitals, commercial buildings and industrial factories and they are effective between 21% and 40%.

On the other hand, waste heat which is lost normally can be used for a boiler or to supply energy for space heating. This is called Combined Heat and Power System (CHP).

Furthermore as discussed above, on-site natural gas turbines can be used in combined cycle unit. Due to the advantages of these type of generation units there have been many studies to develop more efficient and advanced gas turbines for distributed generation.

Micro turbines

Micro turbines are the small-scale version of the industrial gas turbines. As understood from the names these units are very small and typically have a small electricity output. These kind of distributed production units have 25 – 500 kW power generation capacity. They are also suitable for residential and small-scale commercial units.

The advantages of microturbines include very compact size (about the same size as a refrigerator), few moving parts, lightness, low cost and increased efficiency. Using new waste heat recovery techniques, microturbines can achieve energy efficiency values of up to 80 percent.

Gas springs engines

Piston engines that burns gas are also used for on-site generation. These type of engines are also known as internal combustion engine. They tranform the energy of fossil fuel into mechanical energy, this energy spins a piston for power generation. Gas springs engines generate power less than 5 kW to 7 kW. They can be used in small-scale residential generators and baseload generators in industrial generators. Gas springs engines can have efficiency value between 25% and 45% and they can be used in CHP system to increase the energy efficiency.

Fuel cell

Fuel cells can work with hydrogen, rich in hydrogen gas mixture or natural gas and turns the chemical energy in these fuels into electricity and water as a result of electrochemical reaction (hydrogen fuel reacting with oxygen in the air). Unlike the cells that we use in our houses you can generate power as long as fuel cells are feeded with fuel (hydrogen, natural gas etc). You can use a laptop with fuel cell and also you can supply the power of a city or the whole country from fuel cells.

Fuel cells have become an important technology in power generation. Instead of using electric charge, they resemble rechargable batteries except the feature of generating power by using fuel like natural gas even during inusitation. Fuel cells for distributed production have many advantages and they are exciting discovery and research field for distributed energy implementations.

Combined Heat and Power Systems (CHP)  are one of the main technologies of power generation both for distributed and central. These systems enable using the lost heat during power generation process therefore they increase the energy efficiency of the total system.