electricity generation from waste heat of gas.
Download as PPT, PDF•2 likes•237 views
The project seminar discusses the utilization of waste heat through the Seebeck generator to convert thermal energy into electricity, addressing the environmental benefits of recovering waste heat and its applications. It explores various methodologies, including the thermoelectric effect, to improve energy efficiency and reduce pollution. The document outlines the project objectives, specifications of components, and a planning timeline for implementation.
electricity generation from waste heat of gas.
- 1. Project Seminar On Fabrication Of Waste Heat Utilising Seeback Generator department:- first year (civil engineeering ) Submitted By:- Vikas S. Rathod Ashish Y. Chavhan
- 2. INTRODUCTION •Waste heat is by necessity produced both by machines that do work and in other processes that use energy, for example in a refrigerator warming the room air or a combustion engine releasing heat into the environment. •The need for many systems to reject heat as a by-product of their operation is fundamental to the laws of thermodynamics. Waste heat has lower utility (or in thermodynamics lexicon a lower exergy or higher entropy) than the original energy source.
- 3. HISTORY •Thermal energy storage, which includes technologies both for short- and long-term retention of heat or cold, can create or improve the utility of waste heat (or cold). One example is waste heat from air conditioning machinery stored in a buffer tank to aid in night time heating. •Another is seasonal thermal energy storage (STES) at a foundry in Sweden. The heat is stored in the bedrock surrounding a cluster of heat exchanger equipped boreholes, and is used for space heating in an adjacent factory as needed, even months later.
- 4. PROBLEMS IDENTIFICATION •There are many different approaches to transfer thermal energy to electricity, and the technologies to do so have existed for several decades. The organic Rankine cycle, offered by companies such as Ormat, is a very known approach, whereby an organic substance is used as working medium instead of water. • The benefit is that this process can utilize lower temperatures for the production of electricity than the regular water steam cycle. An example of use of the steam Rankine cycle is the Cyclone Waste Heat Engine.
- 5. LITERATURE SURVEY The utilization of waste heat energy from exhaust gas in IC engines is another novel application of electricity generation using thermoelectric power generators. Basel (2009) has analysed the thermoelectric power generation with waste heat recovery system and concluded that such systems would be promising solution to the environmental issues with many advantages. Hou Xuejun and Xiao Peng (2012) have analyzed and evaluated the parameters such as diesel exhaust emission rates and diesel exhaust waste heat rate
- 6. PROJECT OBJECTIVE Recovery of waste heat has a direct in to the electric farm . To reduce the environmental pollution levels by recovering heat. To convert the one farm of energy in to the another farm To reduce the size of extra consumption of light from grid
- 7. WORKING PRINCIPLE The thermoelectric seebeck effect is the direct conversion of temperature differences to electric voltage. At the atomic scale, an applied temperature difference causes charge carriers to move from the hot side to the cold side. A device i.e. Thermoelectric Generator is a means to convert the temperature difference into electric voltage and consequently an electric current.
- 9. WORKING The TEG consists of no. of themoelectric modules (TEM) that are made up of semiconductor materials mainly Bismuth Telluride (Bi2Te3). The TEM takes the heat from hot surface on either side being another side to be cold. In this way a temperature difference is created. Based on the Seebeck effect , the electrons and holes present in the thermoelectric semiconductor will try to move towards the junction and make the flow of electric current possible.
- 13. HEAT SHINK A heat sink is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device into a coolant fluid in motion. Then-transferred heat leaves the device with the fluid in motion, therefore allowing the regulation of the device temperature at physically feasible levels..
- 14. GAS STOVE A gas burner is a device to generate a flame to heat up products using a gaseous fuel such as acetylene, natural gas or propane. Some burners have an air inlet to mix the fuel gas with air to make a complete combustion. Acetylene is commonly used in combination with oxygen. .
- 15. DRY BATTERY A Dry cell is a type of chemical cells, commonly used today, in the form of batteries, for many electrical appliances. It was developed in 1886 by the German scientist Karl Gassner. A dry cell uses a paste electrolyte, with only enough moisture to allow current to flow.
- 16. LED STRIP A power strip (also known as an extension block, power board, power bar, plug board, trailing gang, trailing socket, trailer lead and by many other variations) is a block of electrical sockets that attaches to the end of a flexible cable (typically with a mains plug on the other end), allowing multiple electrical devices
- 17. PROJECT BLOCK DIAGRAM GAS BURNER DRY BATTERY PELTIER ELEMENT MULTIMETER CHARGE CONTROLLER
- 18. THERMOELECTRIC EFFECT The thermoelectric effect is the direct conversion of temperature differences to electric voltage and vice versa. A thermoelectric device creates voltage when there is a different temperature on each side. Conversely, when a voltage is applied to it, it creates a temperature difference. At the atomic scale, an applied temperature gradient causes charge carriers in the material to diffuse from the hot side to the cold side.
- 19. SEEBACK AND PELTIER EFFECT
- 21. THERMOELECTRIC MODULE By applying a low voltage DC power to a TE module, heat will be moved through the module from one side to the other. One module face, therefore, will be cooled while the opposite face is simultaneously heated. It is important to note that this phenomenon may be reversed whereby a change in the polarity (plus and minus) of the applied DC voltage will cause heat to be moved in the opposite direction. Consequently, a thermoelectric module may be used for both heating and cooling thereby making it highly suitable for precise temperature control applications.
- 22. WORKING PRINCIPLE A gas burner with thermoelectric unit installed inside the burner head to generate electricity with waste heat energy. Gas flame at the edge of the burner head creates high temperature source (hot side) for the thermoelectric unit. A heat sink is installed inside the burner head and cooled by the fuel mixture. Electricity is generated by the thermoelectric unit when the gas burner is in operation. The electricity generated by the thermoelectric unit can be used to power electric devices.
- 24. ADVANTAGES IN VILLAGES AS THIS CAN BE VERY USEFULL.IF A FAMILY IS COOKING FOOD ON CHULHA THIS PRINCIPLE CAN BE USED TO GENERATE ELECTRICITY WITH PROPER ARRANGEMENT
- 25. PROJECT PLANNING Project Decision Infor collection Garage visit planning fabrication testing submission Aug Sept Oct Nov Dec Jan Feb March April May June
- 26. COST ANALYSIS 1) Thermoelectric module = 2 nos =500/- 2) Heat shink = 4 nos =800/- 3) Gas stove=1 nos =1000/- 4) 12 volt dry battery=1 nos =600/- 5) Led bulb =1 nos=100/- Total =2000/-
- 27. TheThe