CN102311719A - Organic Rankine cycle mixed working fluid containing HFO-1234yf(CF3CF=CH2) - Google Patents

Organic Rankine cycle mixed working fluid containing HFO-1234yf(CF3CF=CH2) Download PDF

Info

Publication number
CN102311719A
CN102311719A CN2011102321573A CN201110232157A CN102311719A CN 102311719 A CN102311719 A CN 102311719A CN 2011102321573 A CN2011102321573 A CN 2011102321573A CN 201110232157 A CN201110232157 A CN 201110232157A CN 102311719 A CN102311719 A CN 102311719A
Authority
CN
China
Prior art keywords
hfc
hfo
working fluid
rankine cycle
mixed working
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011102321573A
Other languages
Chinese (zh)
Inventor
王怀信
张圣君
郭涛
陈晨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin University
Original Assignee
Tianjin University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin University filed Critical Tianjin University
Publication of CN102311719A publication Critical patent/CN102311719A/en
Pending legal-status Critical Current

Links

Landscapes

  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

Provided is an organic Rankine cycle mixed working fluid containing HFO-1234yf(CF3CF=CH2), and the working fluid is applicable as a refrigerant for a low temperature organic Rankine cycle system at a temperature of 60 to 100 DEG C. The mixed working fluid is a binary or ternary mixture prepared by such eight components as HFO-1234yf, HFE-143, HFE-134, HFC-236ea, HFC-245ca, CF3I, HFC-245fa and HFC-254cb according to different mass ratios. A preparation method for the mixed working fluid is as follows: the above-mentioned components are physically mixed at normal temperature according to determined ratios so as to obtain a corresponding mixed working fluid. The mixed working fluid prepared in the invention does not destroy the ozone layer and has low global warming potential, being in accordance with requirements of environmental protection; the working fluid has proper thermal parameters and good circulation performance. Under a design condition, Rankine cycle efficiency is about 9.5%, and output net power per unit mass is basically greater than 20 kJ/kg.

Description

Contain HFO-1234yf (CF 3CF=CH 2) mixed working fluid for organic rankine cycle
Technical field
The invention belongs to the refrigeration agent in heat pump or the air-conditioning system, being specifically related to as vaporization temperature is the working medium in 60-100 ℃ the low temperature organic rankine cycle system.
Background technology
The research of low temperature resource (like cryogenically heat energy, used heat or sun power) generation technology is for reducing fossil energy consumption and CO 2, SO 2, NO xThe discharging of isothermal chamber gas and environmental pollutant realizes that Sustainable development is significant.And one of major technique factor that the generating of restriction low temperature resource utilizes is exactly a system economy.In the practice of warm resource generation technology show the generation technology better economy that is the basis with the organic Rankine circulation.
In recent years; Continuing to increase of the challenge that brings along with the energy and environment problem; And the lifting of the generating economy brought of technical progress, the utilization that always is considered to not possess the low temperature resource (particularly 70-120 ℃ of TR) of generating economy begins to obtain to pay close attention to.Why the low temperature resource generates electricity is utilized economy relatively poor, and its one of the main reasons is exactly to lack the cycle fluid that is fit to.As low temperature organic Rankine round-robin working medium C5F12, HC600 etc. are arranged at present, or they are because of global warming potential (GWP) is very big, or because of inflammable and explosive, apply and limited it.Therefore develop a kind of environmental friendliness, the good novel working medium of thermal performance, most important to the development of low temperature organic Rankine circulating technology.
Summary of the invention
The objective of the invention is; Provide a kind of low temperature organic Rankine round-robin that is applicable to contain the mixing medium of HFO-1234yf; Can be used as vaporization temperature and be 60-100 ℃ low-temperature geothermal resource, or the working medium in the organic rankine cycle system of other low-grade (like used heat, sun power etc.) thermal source.
The present invention proposes contains HFO-1234yf (CF 3CF=CH 2) mixed working fluid for organic rankine cycle comprised 8 kinds of constituent element materials altogether, specifically: HFO-1234yf (CF 3CF=CH 2), HFC-236ea (1,1,1,2,3, the 3-HFC-236fa), HFC-245ca (1,1,2,2, the 3-pentafluoropropane), HFC-245fa (1,1,1,3, the 3-pentafluoropropane), CF 3I (CF3I), HFE-143 (CH 2FOCHF 2), HFE-134 (CHF 2OCHF 2) and HFC-254cb (1,1,2, the 2-tetrafluoropropane).The basic parameter of each constituent element material is as shown in table 1.
The mixed working fluid for organic rankine cycle that contains HFO-1234yf that the present invention proposes specifically consists of:
By HFO-1234yf, CF 3I (CF3I) and HFC-254cb form; Or by HFO-1234yf, CF 3I and HFC-245ca form; Or by HFO-1234yf, CF 3I and HFC-236ea form; Or by HFO-1234yf, CF 3I and HFE-134 form; Or by HFO-1234yf, CF 3I and HFE-143 (CH 2FOCHF 2) form; Or by HFO-1234yf, CF 3I and HFC-245fa form.
HFO-1234yf/CF 3I/HFC-254cb 2-60/3-94/4-95％，
HFO-1234yt/CF 3I/HFC-245ca 2-93/1-92/2-97％，
HFO-1234yf/CF 3I/HFC-236ea 2-95/3-95/2-95％，
HFO-1234yf/CF 3I/HFE-134 1-97/1-97/2-98％，
HFO-1234yf/CF 3I/HFE-1437-9 1/0-87/5-93％，
HFO-1234yf/HFC-143/HFC-245fa 5-97/0-94/1-95％。
More than each constituent element material mass percentage ratio sum of every kind of mixing medium be 100%.
The preparation method of above-mentioned mixing medium is each constituent element material to be carried out physical mixed at normal temperatures by its specified quality proportioning get final product.
The present invention has the following advantages and beneficial effect:
(1) environmental performance: ODP of the present invention equals zero, and environmental characteristics is good.(2) thermal parameter: low temperature organic rankine cycle system design conditions (as the evaporating pressure under 0 ℃ of 90 ℃ of vaporization temperatures, 35 ℃ of condensing temperatures, 5 ℃ of superheating temperature or the weary gas superheating temperature about 1500.0kPa, condensing pressure about 350.0kPa, ratio of expansion is about 4.50.(3) cycle performance: the present invention is about 9.5% in the Rankine cycle efficient under the above-mentioned design conditions, (be in the turbine isentropic efficiency 75% condition under) more than the 23kJ/kg, cycle performance is good basically for unit mass output net work.
The basic parameter of contained constituent element in the table 1 low temperature mixed working fluid for organic rankine cycle
T b: normal boiling point, T c: critical temperature, P c: emergent pressure
Figure BDA0000083205770000021
Embodiment
Embodiment 1: get 3 Mass%HFO-1234yf, 45 Mass%CF 3I and 52 Mass%HFC-254cb carries out after the physical mixed as refrigeration agent at normal temperatures.
Embodiment 2: get 10 Mass%HFO-1234yf, 38 Mass%CF 3I and 52 Mass%HFC-245ca carries out after the physical mixed as refrigeration agent at normal temperatures.
Embodiment 3: get 4 Mass%HFO-1234yf, 36 Mass%CF 3I and 60 Mass%HFC-236ea carries out after the physical mixed as refrigeration agent at normal temperatures.
Embodiment 4: get 21 Mass%HFO-1234yf, 18 Mass%CF 3I and 61 Mass%HFE-134 carries out after the physical mixed as refrigeration agent at normal temperatures.
Embodiment 5: get 11 Mass%HFO-1234yf, 70 Mass%CF 3I and 19 Mass%HFE-143 carries out after the physical mixed as refrigeration agent at normal temperatures.
Embodiment 6: get 26 Mass%HFO-1234yf, 20 Mass%CF 3I and 54 Mass%HFC-245fa carries out after the physical mixed as refrigeration agent at normal temperatures.
With the circulation of low temperature underground heat organic Rankine is example; Low temperature underground heat organic rankine cycle system design conditions are taken as: average vaporization temperature is 90 ℃, and average condensing temperature is 30 ℃, the evaporation superheating temperature be 5 ℃ (to some working medium; Get into two-phase region for guaranteeing to avoid expanding ending; Getting weary gas superheating temperature is 0 ℃, and the evaporation superheating temperature of inverse is 6-10 ℃ with this understanding), expansion process decides entropic efficiency and working medium pump efficient is 75%; According to cycle calculations, above-mentioned 6 embodiment have related parameter and cycle performance index as shown in table 2.
Table 2 embodiment of the invention performance
Parameter and performance Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Embodiment 6
Evaporating pressure MPa 1.6229 1.201 1.5709 1.5808 1.5937 1.6168
Condensing pressure MPa 0.3786 0.25358 0.33643 0.36089 0.35088 0.35198
Turbine import specific volume m 3/kg 4.7731 5.0197 5.2588 4.7321 4.7519 5.1649
Ratio of expansion 4.2861 4.7359 4.6695 4.3803 4.542 4.5935
Unit mass output net work kJ/kg 18.3430 20.022 17.109 20.731 18.08 20.331
Cycle efficiency 0.0981 0.09512 0.09611 0.09846 0.10024 0.09385
Vaporization temperature slippage ℃ 2.2204 13.359 2.717 5.7457 12.472 7.8336
Condensing temperature slippage ℃ 3.4117 18.713 5.4495 7.8389 18.965 12.395

Claims (2)

1. contain HFO-1234yf (CF 3CF=CH 2, 2,3,3,3-tetrafluoro-1-propylene) mixed working fluid for organic rankine cycle, comprise HFC-236ea (1,1,1,2,3, the 3-HFC-236fa), HFC-245ca (1,1,2,2, the 3-pentafluoropropane), HFC-245fa (1,1,1,3, the 3-pentafluoropropane), CF 3I (CF3I), HFE-143 (CH 2FOCHF 2), HFE-134 (CHF 2OCHF 2) and HFC-254cb (1,1,2, the 2-tetrafluoropropane), it is characterized in that mixing medium is by HFO-1234yf, CF 3I (CF3I) and HFC-254cb form; Or by HFO-1234yf, CF 3I and HFC-245ca form; Or by HFO-1234yf, CF 3I and HFC-236ea form; Or by HFO-1234yf, CF 3I and HFE-134 form; Or by HFO-1234yf, CF 3I and HFE-143 (CH 2FOCHF 2) form; Or by HFO-1234yf, CF 3I and HFC-245fa form.
2. according to the described HFO-1234yf (CF that contains of claim 1 3CF=CH 2, 2,3,3,3-tetrafluoro-1-propylene) mixed working fluid for organic rankine cycle, it is characterized in that the mass percent of above-mentioned each constituent element material is specially:
HFO-1234yf/CF 3I/HFC-254cb 2-60/3-94/4-95％，
HFO-1234yf/CF 3I/HFC-245ca 2-93/1-92/2-97％，
HFO-1234yf/CF 3I/HFC-236ea 2-95/3-95/2-95％，
HFO-1234yf/CF 3I/HFE-134 1-97/1-97/2-98％，
HFO-1234yf/CF 3I/HFE-143 7-91/0-87/5-93％，
HFO-1234yf/CF 3I/HFC-245fa 3-92/3-91/5-93％，
More than each constituent element material mass percentage ratio sum of every kind of mixing medium be 100%.
CN2011102321573A 2009-10-13 2009-10-13 Organic Rankine cycle mixed working fluid containing HFO-1234yf(CF3CF=CH2) Pending CN102311719A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN200910070780.6A CN101747867B (en) 2009-10-13 2009-10-13 Containing HFO-1234yf (CF3CF=CH2) mixed working fluid for organic rankine cycle
CN200910070780.6 2009-10-13

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN200910070780.6A Division CN101747867B (en) 2009-10-13 2009-10-13 Containing HFO-1234yf (CF3CF=CH2) mixed working fluid for organic rankine cycle

Publications (1)

Publication Number Publication Date
CN102311719A true CN102311719A (en) 2012-01-11

Family

ID=42475496

Family Applications (2)

Application Number Title Priority Date Filing Date
CN200910070780.6A Expired - Fee Related CN101747867B (en) 2009-10-13 2009-10-13 Containing HFO-1234yf (CF3CF=CH2) mixed working fluid for organic rankine cycle
CN2011102321573A Pending CN102311719A (en) 2009-10-13 2009-10-13 Organic Rankine cycle mixed working fluid containing HFO-1234yf(CF3CF=CH2)

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN200910070780.6A Expired - Fee Related CN101747867B (en) 2009-10-13 2009-10-13 Containing HFO-1234yf (CF3CF=CH2) mixed working fluid for organic rankine cycle

Country Status (1)

Country Link
CN (2) CN101747867B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104277765B (en) 2013-07-05 2017-12-08 中化蓝天集团有限公司 A kind of environment-friendly type near azeotropic mixed refrigerant

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101014680A (en) * 2004-04-29 2007-08-08 霍尼韦尔国际公司 Compositions containing fluorine substituted olefins
CN101155892A (en) * 2004-12-21 2008-04-02 霍尼韦尔国际公司 Stabilized iodocarbon compositions

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109897605B (en) * 2005-03-04 2021-09-10 科慕埃弗西有限公司 Compositions comprising fluoroolefins
TWI482748B (en) * 2005-06-24 2015-05-01 Honeywell Int Inc Compositions containing fluorine substituted olefins
CA2661007A1 (en) * 2006-09-01 2008-03-06 E.I. Du Pont De Nemours And Company Method for circulating selected heat transfer fluids through a closed loop cycle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101014680A (en) * 2004-04-29 2007-08-08 霍尼韦尔国际公司 Compositions containing fluorine substituted olefins
CN101155892A (en) * 2004-12-21 2008-04-02 霍尼韦尔国际公司 Stabilized iodocarbon compositions

Also Published As

Publication number Publication date
CN101747867B (en) 2016-08-03
CN101747867A (en) 2010-06-23

Similar Documents

Publication Publication Date Title
Jiang et al. A review and perspective on industry high-temperature heat pumps
Aboelwafa et al. A review on solar Rankine cycles: Working fluids, applications, and cycle modifications
Chen et al. A novel isobaric adiabatic compressed air energy storage (IA-CAES) system on the base of volatile fluid
Kang et al. Parametric optimization and performance analysis of zeotropic mixtures for an organic Rankine cycle driven by low-medium temperature geothermal fluids
Dai et al. Thermodynamic analysis of carbon dioxide blends with low GWP (global warming potential) working fluids-based transcritical Rankine cycles for low-grade heat energy recovery
KR102043047B1 (en) Processes and compositions for organic rankine cycles for generating mechanical energy from heat
Shu et al. Study of mixtures based on hydrocarbons used in ORC (Organic Rankine Cycle) for engine waste heat recovery
CN101914368A (en) Transcritical power cycle mixed working medium
US20160115827A1 (en) Heat transfer process
CN101864276A (en) Environment-friendly refrigerant
CN102127397A (en) Mixed working medium for organic working medium rankine cycle system of screw expander
CN103937458A (en) Organic Rankine cycle mixed working medium
CN103571437A (en) Ammonia-containing mixed refrigerant
CN101864277A (en) Refrigerant composition with low GWP (Global Warming Potential) value
CN102311719A (en) Organic Rankine cycle mixed working fluid containing HFO-1234yf(CF3CF=CH2)
CN101597484A (en) Contain HFE-143 (CH 2FOCHF 2) mixed working fluid for organic rankine cycle
CN101892033A (en) Hydrocarbon-containing medium-high temperature heat pump mixture
CN110330948A (en) Organic Rankine Cycle isopentane/hexamethylene working medium suitable for 270 DEG C of heat sources
CN102925113A (en) Organic Rankine cycle mixed refrigerant containing HFC-236fa (1,1,1,3,3,3-hexafluoropropane)
CN102911642A (en) Medium-and-high temperature heat pump refrigerant mixture containing iso-butane (R600a)
CN103045173A (en) Transcritical power cycle mixed working medium containing difluoromethane (R32)
Mocarski et al. Selected aspects of operation of supercritical (transcritical) organic Rankine cycle
CN102732220A (en) Organic Rankine cycle mixed refrigerant containing HFO-1234yf(CF3CF=CH2)
CN102732221A (en) Organic Rankine cycle mixed refrigerant containing HFO-1234yf(CF3CF=CH2)
CN102925110A (en) Organic Rankine cycle mixed refrigerant containing HFC-143(1,1,2-halothane)

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120111