Waste heat recovery for power generation and engine warm up
US-2018119578-A1 · May 3, 2018 · US
Binary power generation system
US10830217B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10830217-B2 |
| Application number | US-201916506785-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 9, 2019 |
| Priority date | Mar 24, 2017 |
| Publication date | Nov 10, 2020 |
| Grant date | Nov 10, 2020 |
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- Title
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- Abstract
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- First independent claim
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Abstract
Official abstract text for this publication.
Provided are a high-temperature-side loop to which thermal fluid from a thermal line is supplied for power generation, a low-temperature-side loop to which the thermal fluid from the high-temperature-side loop is guided for power generation, a thermal-fluid thermometer to detect a temperature of the thermal fluid supplied to the high-temperature-side loop, and a line switcher to switch, on the basis of the detected temperature of the thermal-fluid thermometer, between a mode where the thermal fluid from the thermal line is supplied through the high-temperature-side loop to the low-temperature-side loop and a mode where the supply of the thermal fluid to the high-temperature-side loop is shut off and the thermal fluid is supplied only to the low-temperature-side loop.
First claim
Opening claim text (preview).
The invention claimed is: 1. A binary power generation system comprising a high-temperature-side loop having a first evaporator for evaporating high-temperature-side heat medium through heat exchange with thermal fluid from a thermal line, a first turbine generator driven by steam from the first evaporator and a first condenser for condensing steam from the first turbine generator into water through heat exchange with cooling fluid, a low-temperature-side loop having a second evaporator for evaporating a low-temperature-side heat medium through heat exchange with the thermal fluid from the first evaporator, a second turbine generator driven by steam from the second evaporator, and a second condenser for condensing steam from the second turbine generator into water through heat exchange with the cooling fluid, and a line switcher with a thermal-fluid thermometer to detect a temperature of the thermal fluid for switching, on the basis of the detected temperature of the thermal-fluid thermometer, between a mode where the thermal fluid from the thermal line is supplied through the high-temperature-side loop to the low-temperature-side loop and a mode where the supply of the thermal fluid to the high-temperature-side loop is shut off and the thermal fluid is supplied only to the low-temperature-side loop. 2. The binary power generation system as claimed in claim 1 further comprising a cooling-fluid-supplying flow passage through which the cooling fluid from the second condenser in the low-temperature-side loop is supplied to the first condenser in the high-temperature-side loop. 3. The binary power generation system as claimed in claim 1 wherein the thermal line is connected to a solar heat collecting apparatus, the first evaporator being connected to the second evaporator through a communication line, the second evaporator being connected to the solar heat collecting apparatus through a return line. 4. The binary power generation system as claimed in claim 2 wherein the thermal line is connected to a solar heat collecting apparatus, the first evaporator being connected to the second evaporator through a communication line, the second evaporator being connected to the solar heat collecting apparatus through a return line. 5. The binary power generation system as claimed in claim 3 further comprising a bypass line between the communication and return lines to bypass the second evaporator and a low-temperature-side-loop stoppage switcher with a cooling-fluid thermometer to detect a temperature of the cooling fluid to the second condenser for switching, on the basis of the detected temperature of the cooling-fluid thermometer, between a mode where the thermal fluid in the communication line is guided to the second evaporator and a mode where the thermal fluid in the communication line is guided to the return line by bypassing the second evaporator. 6. The binary power generation system as claimed in claim 4 further comprising a bypass line between the communication and return lines to bypass the second evaporator and a low-temperature-side-loop stoppage switcher with a cooling-fluid thermometer to detect a temperature of the cooling fluid to the second condenser for switching, on the basis of the detected temperature of the cooling-fluid thermometer, between a mode where the thermal fluid in the communication line is guided to the second evaporator and a mode where the thermal fluid in the communication line is guided to the return line by bypassing the second evaporator. 7. The binary power generation system as claimed in claim 1 wherein the low-temperature-side heat medium is ammonia, and the high-temperature-side heat medium is a fluorocarbon based cooling medium of R245fa (HFC245fa), R1234ze (CF3CH═CHF), R1234zd (CF3CH═CHC) or R152a (HFC152a). 8. The binary power generation system as claimed in claim 2 wherein the low-temperature-side heat medium is ammonia, and the high-temperature-side heat medium is a fluorocarbon based cooling medium of R245fa (HFC245fa), R1234ze (CF3CH═CHF), R1234zd (CF3CH═CHC) or R152a (HFC152a). 9. The binary power generation system as claimed in claim 3 , wherein the low-temperature-side heat medium is ammonia, and the high-temperature-side heat medium is a fluorocarbon based cooling medium of R245fa (HFC245fa), R1234ze (CF3CH═CHF), R1234zd (CF3CH═CHC) or R152a (HFC152a). 10. The binary power generation system as claimed in claim 4 , wherein the low-temperature-side heat medium is ammonia, and the high-temperature-side heat medium is a fluorocarbon based cooling medium of R245fa (HFC245fa), R1234ze (CF3CH═CHF), R1234zd (CF3CH═CHC) or R152a (HFC152a). 11. The binary power generation system as claimed in claim 5 wherein the low-temperature-side heat medium is ammonia, and the high-temperature-side heat medium is a fluorocarbon based cooling medium of R245fa (HFC245fa), R1234ze (CF3CH═CHF), R1234zd (CF3CH═CHC) or R152a (HFC152a). 12. The binary power generation system as claimed in claim 6 wherein the low-temperature-side heat medium is ammonia, and the high-temperature-side heat medium is a fluorocarbon based cooling medium of R245fa (HFC245fa), R1234ze (CF3CH═CHF), R1234zd (CF3CH═CHC) or R152a (HFC152a).
Assignees
Inventors
Classifications
Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines · CPC title
- F03G6/064Primary
having a gas turbine cycle, i.e. compressor and gas turbine combination · CPC title
the engine cycles being thermally coupled · CPC title
Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants · CPC title
using waste heat from outside the plant (F02G5/00 takes precedence) · CPC title
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Frequently asked questions
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- What does patent US10830217B2 cover?
- Provided are a high-temperature-side loop to which thermal fluid from a thermal line is supplied for power generation, a low-temperature-side loop to which the thermal fluid from the high-temperature-side loop is guided for power generation, a thermal-fluid thermometer to detect a temperature of the thermal fluid supplied to the high-temperature-side loop, and a line switcher to switch, on the …
- Who is the assignee on this patent?
- Ihi Corp
- What technology area does this patent fall under?
- Primary CPC classification F03G6/064. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Nov 10 2020 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).