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| Title | Diesel Burner Development for 500-Watt Portable Thermophotovoltaic Generator |
| Creator | Scotto, Mark V. |
| Publisher | Digitized by J. Willard Marriott Library, University of Utah |
| Date | 1999 |
| Spatial Coverage | presented at San Francisco, California |
| Abstract | McDermott Technology, Inc. (MTI) and JX Crystals (JXC) are developing a portable thermophotovoltaic (TPV) electric generator under a Defense Advanced Research Projects Agency (DARPA) contract. The contract is managed by the U.S. Army's Communication and Electronic Command (CECOM) due to its interest in the device for field applications. The generator is designed to burn diesel fuel (DF-2) at an overall efficiency of 8% -10% and net output of 500 watts DC power. MTI is developing the burner/emitter/recuperator (BER), which converts chemical energy in the fuel to a uniform radiant heat flux directed toward the photovoltaic cells. A thermally integrated, high-temperature recuperator was used to increase fuel efficiency by preheating the combustion air. The power converter assembly (PCA) developed by JXC converts the radiant flux that emanates from the emitter to electrical power using an array of photovoltaic cells. This paper describes the burner development work at MTI. A burner system was designed and fabricated to efficiently elevate the emitter to a uniform temperature exceeding 2400°F, the required temperature to efficiently convert the radiant flux to electricity. The burner system generated a stable feed of vaporized fuel using a flow orifice. A short compact flame was produced with rapid heat release near the burner to achieve high energy efficiency and low emission of CO and soo'. Emitter temperature data for integrated systems under different operational conditions are presented. |
| Type | Text |
| Format | application/pdf |
| Language | eng |
| Rights | This material may be protected by copyright. Permission required for use in any form. For further information please contact the American Flame Research Committee. |
| Conversion Specifications | Original scanned with Canon EOS-1Ds Mark II, 16.7 megapixel digital camera and saved as 400 ppi uncompressed TIFF, 16 bit depth. |
| Scanning Technician | Cliodhna Davis |
| ARK | ark:/87278/s6862k19 |
| Setname | uu_afrc |
| ID | 11714 |
| Reference URL | https://collections.lib.utah.edu/ark:/87278/s6862k19 |
Page Metadata
| Title | Page 1 |
| Format | application/pdf |
| OCR Text | Diesel Burner Development for 500-Watt Portable Thermophotovoltaic Generator Authors: Mark V. Scotto McDermott Technology Inc., Alliance, Ohio 44601 ABSTRACT McDermott Technology, Inc. (MTI) and JX Crystals (JXC) are developing a portable thermophotovoltaic (TPV) electric generator under a Defense Advanced Research Projects Agency ( D A R P A ) contract. The contract is managed by the U.S. Army's Communication and Electronic C o m m a n d ( C E C O M ) due to its interest in the device for field applications. The generator is designed to burn diesel fuel (DF-2) at an overall efficiency of 8 % - 1 0 % and net output of 500 watts D C power. M T I is developing the burner / emitter / recuperator (BER), which converts chemical energy in the fuel to a uniform radiant heat flux directed toward the photovoltaic cells. A thermally integrated, high-temperature recuperator was used to increase fuel efficiency by preheating the combustion air. The power converter assembly (PCA) developed by J X C converts the radiant flux that emanates from the emitter to electrical power using an array of photovoltaic cells. This paper describes the burner development work at MTI. A burner system was designed and fabricated to efficiently elevate the emitter to a uniform temperature exceeding 2400 °F, the required temperature to efficiently convert the radiant flux to electricity. The burner system generated a stable feed of vaporized fuel using a flow orifice. A short compact flame was produced with rapid heat release near the burner to achieve high energy efficiency and low emission of C O and soo'. Emitter temperature data for integrated systems under different operational conditions aiv presented. Introduction M T I teamed with J X C to develop a thermophotovoltaic (TPV) generator that uses diesel (DF-2) fuel to produce 500 watts of electricity at a net energy efficiency of 8 % to 10%. The generator was designed to be light (~ 15 lbs) and have a low thermal and acoustic signature. The team was successful in developing a working benchtop B E R and PCA. The two devices were combined at the M T I Thermophotovoltaic Laboratory to make a one-of-a-kind laboratory test station with unique measurement capabilities. Phase I ended with a demonstration test that showed the laboratory prototype to be an effective tool for advancing the state of the art in T P V electric power generation. The development of the burner assembly that was integrated with M T F s cylindrical B E R subsystem design is described. The basic elements of a TPV electric generator are shown in Figure 1. TPV systems work by converting radiant energy generated by an incandescent emitter into D C electricity. As shown in Figure 1, a burner is used to heat a ceramic emitter. The emitter is heated and radiates energy to photovoltaic (PV) cells that convert a portion of the radiant energy into electrical energy. The wavelengths of light must exceed the cell's bandgap energy to be converted into 1 |
| Setname | uu_afrc |
| ID | 11703 |
| Reference URL | https://collections.lib.utah.edu/ark:/87278/s6862k19/11703 |