PDF Publication Title:
Text from PDF Page: 002
International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 06 Issue: 04 | Apr 2019 www.irjet.net p-ISSN: 2395-0072 * The heat dissipated by the heater will be transferred to the heat exchanger through the Heat Transfer Fluid (HTF), which is in the form of oil. The oil resides in an oil tank from where it is pumped through a series of pipes leading to the heat exchanger. As the oil circulates through the system, the sand’s change in temperature will be monitored by temperature sensors. *When the sand attains the desired temperature of 150 °C the end of the first phase, also known as the Charging Phase will be complete. The second phase, which is the Storing Phase, tests the storing capabilities of the TES element. Multiple tests will be conducted on the TES element to see how much thermal energy it loses across various time intervals. Finally, during the third phase, the leftover heat in the sand is recovered and converted into electricity. Cold oil will be pumped to circulate through the pipes and into the TES element, thus absorbing the sand’s heat. When the heat exchange between the sand and the oil is complete, the second stage – electricity generation – will be initiated. *A thermoelectric generator in the form of a Peltier Element will be used to convert the thermal energy from the oil into electrical energy via the concept of a temperature differential. This encapsulates the Discharging Phase of the system. The three-phase process explained summarizes the working principle as well as the testing procedure that will be followed. 2.1 BENEFITS OF UTILIZING SAND AS A STORAGE MEDIUM *Sensible TES systems are currently being tested and optimized in order to provide an energy management solution with a minimal cost platform and environmental footprint. Such applications, if optimized enough, can provide a useful and well-needed progression in the technological world of TES systems. * The Masdar Institute of Science and Technology in Abu Dhabi has been one of the frontrunners in the creation of such technologies [7]. One of their most recent experiments has been the design and construction of a thermal energy storage system that utilizes sand as the storage medium. Such a design, even its preliminary stages, has shown significant promise in its potential ability to satisfy the World’s upcoming energy needs. *The unique project offers low-maintenance requirements when compared to traditional thermal energy storages. For example, the most common storage medium, molten salt, presents plugging related issues if it is not maintained above a specific temperature (260 °C). In such a case, external heat must be added to the system in order to change the phase of the molten salt back into liquid state. Molten salt based systems are significantly costly. Specifically, for 7.5 hours of thermal storage, 28,000 tons of nitrate molten salt are required [8]. *This translates to a cost of 25.2 million dollars only for the storage medium. Alternatively, if a sand-based TES system is utilized the overall cost of such projects will be lowered by a substantial amount. 3. WORKING PRINCIPLE • The proposed thermal energy storage system consists of the above array of components to complete the three phases; charging, storing, and discharging. • Phase 1:charging:The first phase of the system determines the amount of time required by the sand to reach the desired temperature. • Phase 2:storing:The second phase tests the storing capabilities of the system – in other words, the amount of heat that is lost after a certain storing period. • Phase 3:Discharging:During the last phase the discharging capabilities of the sand as well as the electricity generating capabilities of the system are established. 3.1CHARGING PHASE To proceed in obtaining data for the first phase of the experimental process the following practice is followed: 1. 2. 3. 4. 5. 6. 7. The sensors are connected to the power supply to obtain initial temperature readings of the sand and the oil The gateway-valve is opened to allow the HTF to flow through the system The motor that is connected to the pump is turned on Both pressure gauges will indicate the operating pressure of the oil The heater is connected to the power source, and the switch is turned on After the light indication on the heater is turned on the experiment has officially started Every minute the temperature of the oil at the outlet of the heater and the TES element’s are recorded © 2019, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 3580PDF Image | Heat Storing Sand Battery
PDF Search Title:
Heat Storing Sand BatteryOriginal File Name Searched:
IRJET-V6I41143.pdfDIY PDF Search: Google It | Yahoo | Bing
Turbine and System Plans CAD CAM: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. More Info
Waste Heat Power Technology: Organic Rankine Cycle uses waste heat to make electricity, shaft horsepower and cooling. More Info
All Turbine and System Products: Infinity Turbine ORD systems, turbine generator sets, build plans and more to use your waste heat from 30C to 100C. More Info
CO2 Phase Change Demonstrator: CO2 goes supercritical at 30 C. This is a experimental platform which you can use to demonstrate phase change with low heat. Includes integration area for small CO2 turbine, static generator, and more. This can also be used for a GTL Gas to Liquids experimental platform. More Info
Introducing the Infinity Turbine Products Infinity Turbine develops and builds systems for making power from waste heat. It also is working on innovative strategies for storing, making, and deploying energy. More Info
Need Strategy? Use our Consulting and analyst services Infinity Turbine LLC is pleased to announce its consulting and analyst services. We have worked in the renewable energy industry as a researcher, developing sales and markets, along with may inventions and innovations. More Info
Made in USA with Global Energy Millennial Web Engine These pages were made with the Global Energy Web PDF Engine using Filemaker (Claris) software.
Sand Battery Sand and Paraffin for TES Thermo Energy Storage More Info
| CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com | RSS | AMP |