CN1888885A - Performance tester based on heat exchanger fin unit - Google Patents
Performance tester based on heat exchanger fin unit Download PDFInfo
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- CN1888885A CN1888885A CN 200610029119 CN200610029119A CN1888885A CN 1888885 A CN1888885 A CN 1888885A CN 200610029119 CN200610029119 CN 200610029119 CN 200610029119 A CN200610029119 A CN 200610029119A CN 1888885 A CN1888885 A CN 1888885A
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Abstract
A capability tester based on exchanger fin cell belongs to energy sources and chemical industry technology field. The test equipment makes up by oil pressure ductwork, constant temperature oil melt, test part, heat preservation water tank and data test/ collection system. Test fin, test frame, first and second red-copper base plants, first and second film heating plants, first and second adiabatic frames, first and second adiabatic plants, first and second sealed pillows, clamp, oil intake pipe, oil outlet pipe, thermocouple, intake platinum resistance, outlet platinum resistance, first and second leading press pipes, press intake sensor, press outlet sensor and digital power dial make up into the test part. The test part reduces the heat balance error by inside the heat preservation water tank and uses the electric power to offer quantity of heat. It adopts mono-layer fin as the test object to avoid the test error of the asymmetry of the matter in the exchanger with high test precision, simple manipulate and low cost.
Description
Technical field
What the present invention relates to is a kind of test unit, specifically is a kind of performance test apparatus based on heat exchanger fin unit, belongs to the energy and chemical technology field.
Background technology
The producer that produces heat interchanger both at home and abroad is numerous, and the mensuration that the heat exchanging device carries out heat exchange and resistance is comparatively common research technique.Traditional test is that the whole heat interchanger of forming with the multilayer heat exchange unit is a research object, measures flowing and heat transfer characteristic of enhanced heat transfer surfaces side by water-cooled or air cooling way.This method of testing is comparatively common, but also brings some shortcomings.With the plate fin oil cooler is example, and this heat interchanger is formed by the multilayer chiop soldering, and machine oil flows through each layer chip of refrigeratory, and the chip outside is crossed in the chilled water reverse flow, thereby carries out heat exchange.The compact conformation and the flow area of every layer of chip are little; The diversion Design of oil duct inlet and the influence of manufacturing accuracy are not quite similar the structure of each layer chip, and the each side combined factors causes oil flow rate and the heat and inequality in each layer chip.
Find through literature search prior art, " Shanghai Communications University's journal ", 2005,2, plate fin oil cooler performance simulation and optimization, report: the oil cooler of 12 layers of chip of certain type, each laminar flow amount distribute and are the distribution of " S " type, and each layer heat is the distribution of " bathtub " shape, and each layer heat maximum difference is 64%.If change operating condition of test, the chip number of plies or fin geometric parameter, promote the conclusion (of pressure testing) of heat interchanger and infeasible, so must carry out revision test during designing new product.In addition, traditional experiment adopts water-cooled or air cooling way to cool off, and obtains the hot side coefficient of heat transfer thereby separate the cold side thermal resistance by partition method, and the error that this method can be measured cold side and the error of calculation of partition method are incorporated in the test result of hot side.Also find " internal combustion engine journal ", 1998 in the retrieval, 16 (12), the thermodynamic property research of the saw tooth fin of different staggered positions, the experiment test device of report are that soldering forms at the multilayer heat exchange unit heat interchanger is a research object, have the uneven phenomenon that flows in each passage.
Summary of the invention
In order to overcome the limitation of prior art, the present invention designs a kind of performance test apparatus based on heat exchanger fin unit.The present invention is avoid the unit heat exchange of each layer of heat interchanger inhomogeneous, adopts the individual layer fin as research object; For avoiding cold side to measure the error of introducing, adopt Electric heating directly to measure flowing and heat transfer characteristic of surface.
The present invention is achieved by the following technical solutions:
The present invention is made up of oil line pipe system, constant temperature oil bath, test section, attemperater and data test/acquisition system.Wherein the oil line pipe system comprises gear oil pump, the first pipeline variable valve, the second pipeline variable valve, mass flowmeter and plate type heat exchanger.Test section comprises test fin, fin frame, the first red copper substrate, the second red copper substrate, the first film heating plate, the second film heating plate, the first adiabatic frame, the second adiabatic frame, first heat-insulating shield, second heat-insulating shield, first sealing gasket, second sealing gasket, anchor clamps, oil inlet pipe, flowline, thermopair, import platinum resistance, outlet platinum resistance, first pressure guiding pipe, second pressure guiding pipe, inlet pressure sensor, outlet pressure sensor and digital power meter.Data test/acquisition system comprises a data collecting instrument and computing machine.
Oil line pipe system connection gear oil pump, the gear oil pump other end connects two variable valve, the first pipeline variable valve feeds constant temperature oil bath, the second pipeline variable valve other end quality of connection flowmeter, the mass flowmeter other end connects the oil inlet pipe of test section, the flowline of test section connects the oil-in of plate type heat exchanger, and the plate type heat exchanger oil-out is connected in the constant temperature oil bath, finishes an oil circulation system.
Test section places attemperater, and wherein, test fin and fin frame constitute fin component; The first red copper substrate, the first film heating plate, the first adiabatic frame, first heat-insulating shield and first sealing gasket of fin component top constitutes the last assembly of test section; The second red copper substrate, the second film heating plate, the second adiabatic frame, second heat-insulating shield and second sealing gasket of fin component below constitutes the following assembly of test section.Adopt anchor clamps that assembly on fin component, the test section and following assembly are installed clamping.
In the described fin component, the test fin is installed in the fin frame, and fin frame two ends have " V " type hole and are communicated with the fin side.
In the last assembly of described test section, first sealing gasket is arranged on the fin component top, and first sealing gasket top is provided with the first red copper substrate identical with fin frame physical dimension, and the first red copper upper surface of base plate is drilled with 15 apertures, and thermopair is installed respectively; The first red copper substrate upside covers to be pasted and the measure-alike the first film heating plate of test fin, and the first film heating plate also has the aperture of same position, and thermopair passes in aperture; Be nested in the first film heating plate outside with the first adiabatic frame of fin frame same size, have the lead-out groove of heating plate power lead and thermocouple lead on the first adiabatic frame; The heating plate power lead connects digital power meter; It above the first adiabatic frame first heat-insulating shield with red copper substrate same size.
In the assembly, second sealing gasket is arranged on the fin component below under the described test section, and second sealing gasket below is provided with the second red copper substrate identical with fin frame physical dimension, and the second red copper base lower surface is drilled with 15 apertures, and thermopair is installed respectively; The second red copper substrate downside covers to be pasted and the second measure-alike film heating plate of test fin, and the second film heating plate also has the aperture of same position, and thermopair passes in aperture; Be nested in the second film heating plate outside with the second adiabatic frame of fin frame same size, have the lead-out groove of heating plate power lead and thermocouple lead on the second adiabatic frame; The heating plate power lead connects digital power meter; It below the second adiabatic frame second heat-insulating shield with the second red copper substrate same size.
The second adiabatic frame and the second heat-insulating shield two ends of following assembly all have two through hole, and the second red copper substrate two ends are drilled with two threaded holes, and oil inlet pipe is connected with the second red copper substrate by two threaded holes with flowline.Import platinum resistance, outlet platinum resistance are connected with flowline with oil inlet pipe respectively.Adopt first pressure guiding pipe, second pressure guiding pipe to be connected inlet pressure sensor, outlet pressure sensor respectively on oil inlet pipe and the flowline.
Described data test/acquisition system adopts the Keithley data collecting instrument, and the main frame model is 2700, and the model of capture card is 7708.Thermopair directly is connected with the capture card of Keithley data collecting instrument by lead-in wire with platinum resistance in the test section, and miscellaneous equipment is connected with capture card by shielding line.The Keithley data collecting instrument is connected with computing machine by RS232 port data line, and computing machine is as the output terminal of each signal.
The invention has the beneficial effects as follows: the measuring accuracy height, adopting attemperater is that the test section insulation is to reduce the thermal equilibrium error; It is convenient and swift to utilize Electric heating to measure oily side heat; Test block is the fin unit of certain size, does not need soldering to be processed into heat interchanger, so have the low characteristics of processing cost; Test block is the individual layer fin, avoids the inhomogeneous and measuring error that causes of heat interchanger internal flows.
Description of drawings
Fig. 1 principle assumption diagram of the present invention
The synoptic diagram of Fig. 2 test section of the present invention
Embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present invention is described.
As shown in Figure 1, 2, the present invention is made up of oil line pipe system 1, constant temperature oil bath 2, test section 7, attemperater 8 and data test/acquisition system 23.Wherein oil line pipe system 1 comprises gear oil pump 3, the first pipeline variable valve, 4, the second pipeline variable valve 5, mass flowmeter 6 and plate type heat exchanger 10; Wherein test section 7 comprises test fin 24, fin frame 25, the first red copper substrate 26, the second red copper substrate 27, the first film heating plate 28, the second film heating plate 29, the first adiabatic frame 30, the second adiabatic frame 31, first heat-insulating shield 32, second heat-insulating shield 33, first sealing gasket 34, second sealing gasket 35, anchor clamps 36, oil inlet pipe 19, flowline 20, thermopair 12, import platinum resistance 17, outlet platinum resistance 18, first pressure guiding pipe 13, second pressure guiding pipe 14, inlet pressure sensor 15, outlet pressure sensor 16 and digital power meter 11.Wherein data test/acquisition system 23 comprises a Keithley data collecting instrument 21 and computing machine 22.
Because tested object of the present invention is the individual layer fin, belongs to the low discharge scope, oil line pipe system 1 adopts 1/2 inch stainless-steel tube to connect each element.Constant temperature oil bath 2 is by the heating of two-stage heating tube, and wherein high-power heating tube adopts automatic control mode, and the miniwatt heating tube adopts manually its power of control.Oil line pipe system 1 begins to connect from constant temperature oil bath 2, connection gear oil pump 3, gear oil pump 3 other ends connect two variable valve 4,5, the first pipeline variable valve 4 directly feeds constant temperature oil bath 2 as by-pass valve by bypass, the second pipeline variable valve 5 quality of connection flowmeter 6 on main line, mass flowmeter 6 other ends connect the oil inlet pipe 19 of test section 7, the flowline 20 of test section connects the import of plate type heat exchanger 10, plate type heat exchanger 10 outlets are connected in the constant temperature oil bath 2, the effect of plate type heat exchanger 10 is to avoid loop oil temperature too high, finishes an oil circulation system like this.
As shown in Figure 2, test fin 24 and fin frame 25 constitute fin component; The first red copper substrate 26 of fin component top, the first film heating plate 28, the first adiabatic frame 30, first heat-insulating shield 32 and first sealing gasket 34 constitute the last assembly of test section; The second red copper substrate 27 of fin component below, the second film heating plate, 29, the second adiabatic frame 31, second heat-insulating shield 33 and second sealing gasket 35 constitute the following assembly of test section.Adopt anchor clamps 36 that assembly on fin component, the test section and following assembly are installed clamping.
The annexation of the fin component of test section is that test fin 24 is installed in the fin frame 25, and fin frame 25 two ends have " V " type hole and are communicated with test fin 24 sides.
The annexation of the last assembly of test section is: first sealing gasket 34 is arranged on the fin component top, first sealing gasket, 34 tops are provided with the first red copper substrate 26 identical with fin frame physical dimension, the 26 process finishing of red copper substrate are to guarantee its flatness and the depth of parallelism, the first red copper substrate, 26 upper surfaces are drilled with 15 apertures, with heat-conducting glue 15 thermopairs 12 are installed respectively, thermopair 12 is inlayed, is compacted in the aperture, to reduce its thermal contact resistance; The first red copper substrate, 26 upsides cover to be pasted the first film heating plate 28 measure-alike with test fin 24, adopt heat-conducting silicone grease to guarantee fitting tightly of the first film heating plate 28 and the first red copper substrate 26, the first film heating plate 28 also has the aperture with the first red copper substrate, 26 same positions, and thermopair 12 passes in aperture; Be nested in the first film heating plate 28 outsides with the first adiabatic frame 30 of fin frame 25 same sizes, have the lead-out groove of the first film heating plate 28 power leads and thermopair 12 lead-in wires on the first adiabatic frame 30; The first adiabatic frame, 30 tops are first heat-insulating shields 32 with the first red copper substrate, 26 same sizes.
The annexation of assembly is under the test section: second sealing gasket 35 is arranged on the fin component below, second sealing gasket, 35 belows are provided with the second red copper substrate 27 identical with fin frame 25 physical dimension, the second red copper substrate, 27 lower surfaces are drilled with 15 apertures, and thermopair 12 is installed respectively; The second red copper substrate, 27 downsides cover to be pasted the aperture that same position is also arranged with the measure-alike second film heating plate, 29, the second film heating plates 29 of test fin 24, and thermopair 12 passes in aperture; Be nested in the second film heating plate, 29 outsides with the second adiabatic frame 31 of fin frame 25 same sizes, have the lead-out groove of the second film heating plate, 29 power leads and thermopair 12 lead-in wires on the second adiabatic frame 31; The second adiabatic frame, 31 belows are second heat-insulating shields 33 with the second red copper substrate, 27 same sizes.
The first film heating plate 28 and the second film heating plate 29 heating-up temperature of same pressure regulator control wall that is connected in parallel, and connect the heating power that digital power meter 11 is measured two heating plates.
The second adiabatic frame 31 and second heat-insulating shield, 33 two ends of following assembly all have two through hole, and the second red copper substrate, 27 two ends are drilled with two threaded holes, and oil inlet pipe 19 is connected with the second red copper substrate 27 by two threaded holes with flowline 20.Two platinum resistance 17,18 are connected with flowline 20 with oil inlet pipe 19 respectively by screw thread.Be connected inlet pressure sensor 15 and outlet pressure sensor 16 by first pressure guiding pipe 13 respectively with second pressure guiding pipe 14 on oil inlet pipe 19 and the flowline 20.Assembly and following assembly are all fixing respectively by bolt on the test section.Anchor clamps 36 are with fin component, and upper and lower assembly three parts are installed and clamped.
The Keithley data collecting instrument 21 of data test/acquisition system 23, the main frame model is 2700, the capture card model is 7708.Thermopair 12 directly is connected with the capture card of Keithley data collecting instrument 21 by lead-in wire with platinum resistance 17,18 in the test section 7, and miscellaneous equipment is connected with capture card by shielding line.Keithley data collecting instrument 21 is connected with computing machine 22 by RS232 port data line.As signal output part, each signal can pass through the acquisition interface immediately monitoring by computing machine 22.
The present invention tests the fin drag characteristic, and the experiment work medium is a CD 15W/40 machine oil, and according to the common working range of internal combustion engine plate fin oil cooler, the oil flow rate of individual layer fin changes to 1000kg/h from 100kg/h.Under certain import oil temperature, when the heating wall temperature constant, the test specimen pressure drop under the test different flow.Try to achieve the friction factor of fin.Measure the relation that different fin Reynolds numbers and oily side pressure are fallen by a series of; Obtain the test correlation of Reynolds number, geometric parameter and friction factor.
The present invention tests the fin heat transfer characteristic, and oil flow rate is changed to 1000kg/h from 100kg/h, and it is constant to keep the machine oil inlet temperature, heats under the constant situation of wall temperature, measures oil flow rate, out temperature, wall surface temperature and heating plate heating power.Can obtain testing the coefficient of heat transfer and the heat transfer factor of fin.By a series of relations that measure the Reynolds number and the coefficient of heat transfer, obtain the relation of Reynolds number, fin geometric parameter and heat transfer factor, thereby match obtains testing correlation.
The course of work of apparatus of the present invention: to attemperater 8 water fillings, and make water cycle, control water tank water side temperature to 80 ℃.Open the temperature control of constant temperature oil bath 2, temperature is controlled to be 90 ℃.Open the second pipeline variable valve 5 to maximum, open the first pipeline variable valve 4, open gear oil pump 3,, close the first pipeline variable valve 4 gradually and regulate flow to test flow by the instrumental observation flow of mass flowmeter 6 to maximum.Monitor inlet temperature and heating wall temperature in real time according to the data acquisition interface, the power of regulating the first film heating plate 28 and the second film heating plate 29 by pressure regulator is to adjust the temperature of heating wall, and the miniwatt heating tube power of regulating constant temperature oil bath 2 is to adjust test section 7 imports oil temperature.Treat machine oil flow, out temperature, inlet and outlet pressure, image data when each signal of wall surface temperature is all stablized, and read digital power meter 11 read-record heating powers.When test finishes, close the heating power supply of the first film heating plate 28 and the second film heating plate 29, close the heating tube power supply of constant temperature oil bath 2 and attemperater 8, close gear oil pump 3, with the second pipeline variable valve, 5 standard-sized sheets, and the first pipeline variable valve, 4 complete shut-downs, opening gear oil pump 3 reverses, machine oil in the oil duct pipe system 1 is drawn back entirely to constant temperature oil bath 2, and the standard-sized sheet first pipeline variable valve 4 is with the water emptying in the attemperater 8.
The duty of test section 7 is in the process of the test: after opening gear oil pump 3, test fin 24 sides that machine oil enters test section 7 from oil inlet pipe 19 flow out from flowline 20.Be installed in the import platinum resistance 17 of oil inlet pipe 19 positions and measure the oil temperature and the pressure of test section import by the inlet pressure sensor 15 that first pressure guiding pipe 13 is drawn respectively; Be installed in the outlet platinum resistance 18 of flowline 20 positions and measure oil temperature and the pressure that test section exports respectively by the outlet pressure sensor 16 that second pressure guiding pipe 14 is drawn.
The first red copper substrate 26 and the second red copper substrate 27 play the effect of even heating in the fin component both sides, by adjusting the heating power of the first film heating plate 28 and the second film heating plate 29, control the wall surface temperature of the first red copper substrate 26 and the second red copper substrate 27; Wall surface temperature is recorded by the thermopair 12 in the first red copper substrate 26 and the second red copper substrate, 27 outsides; The first adiabatic frame 30 and the second adiabatic frame 31 play the fixedly effect of the first film heating plate 28 and the second film heating plate, 29 positions; Outermost first heat-insulating shield 32 and second heat-insulating shield 33 play the effect that stops the first film heating plate 28 and the second film heating plate 29 to dispel the heat laterally.
Claims (5)
1, a kind of performance test apparatus based on heat exchanger fin unit, form by oil line pipe system (1), constant temperature oil bath (2), test section (7), attemperater (8) and data test/acquisition system (23), it is characterized in that: test section (7) places attemperater (8), oil line pipe system (1) connects constant temperature oil bath (2), constant temperature oil bath (2) is connected to test section (7), test section (7) is connected to data test/acquisition system (23), wherein:
Test section (7) comprises digital power meter (11), thermopair (12), first pressure guiding pipe (13), second pressure guiding pipe (14), inlet pressure sensor (15), outlet pressure sensor (16), import platinum resistance (17), outlet platinum resistance (18), oil inlet pipe (19), flowline (20), test fin (24), fin frame (25), the first red copper substrate (26), the second red copper substrate (27), the first film heating plate (28), the second film heating plate (29), the first adiabatic frame (30), the second adiabatic frame (31), first heat-insulating shield (32), second heat-insulating shield (33), first sealing gasket (34), second sealing gasket (35), anchor clamps (36), test fin (24) is located in the fin frame (25), fin frame (25) perforate is communicated with test fin (24) side, and test fin (24) and fin frame (25) constitute fin component; First sealing gasket (34) is arranged on the fin component top, and first sealing gasket (34) top is provided with the first red copper substrate (26), and first red copper substrate (26) upper surface has aperture, and thermopair (12) is arranged in the aperture; First red copper substrate (26) upside covers pastes the first film heating plate (28), and the first film heating plate (28) also has the aperture with first red copper substrate (26) same position, and thermopair (12) passes in aperture; The first adiabatic frame (30) is nested in the first film heating plate (28) outside; The first adiabatic frame (30) top is and first heat-insulating shield (32) that this part constitutes test section (7) and goes up assembly; The second red copper substrate (27), the second film heating plate (29), the second adiabatic frame (31), second heat-insulating shield (33) and second sealing gasket (35) constitute test section (7) assembly down, following modular construction is identical with the last modular construction of above-mentioned test section (7), in addition, oil inlet pipe (19) is connected with the second red copper substrate (27) with flowline (20), two platinum resistance (17,18) be connected with flowline (20) with oil inlet pipe (19) respectively, oil inlet pipe (19) is gone up with flowline (20) and is connected inlet pressure sensor (15) and outlet pressure sensor (16) respectively by first pressure guiding pipe (13) and second pressure guiding pipe (14).
2, the performance test apparatus based on heat exchanger fin unit according to claim 1, it is characterized in that: the second adiabatic frame (31) and second heat-insulating shield (33) two ends all have two through hole, second red copper substrate (27) two ends are drilled with two threaded holes, oil inlet pipe (19) is connected with the second red copper substrate (27) by two threaded holes with flowline (20), and two platinum resistance (17,18) are connected with flowline (20) with oil inlet pipe (19) respectively by screw thread.
3, the performance test apparatus based on heat exchanger fin unit according to claim 1, it is characterized in that: test section (7) goes up assembly and following assembly is fixing respectively by bolt, fin component, test section (7) go up assembly and following assembly three parts are installed clamping by anchor clamps (36).
4, performance test apparatus based on heat exchanger fin unit according to claim 1, it is characterized in that: described oil line pipe system (1) comprises gear oil pump (3), the first pipeline variable valve (4), the second pipeline variable valve (5), mass flowmeter (6) and plate type heat exchanger (10), oil line pipe system (1) connection gear oil pump (3), gear oil pump (3) other end connects two variable valve (4,5), the first pipeline variable valve (4) directly feeds constant temperature oil bath (2) as by-pass valve by bypass, second pipeline variable valve (5) the quality of connection flowmeter (6), mass flowmeter (6) other end connects the oil inlet pipe (19) of test section (7), the flowline of test section (20) connects the import of plate type heat exchanger (10), and plate type heat exchanger (10) outlet is connected in the constant temperature oil bath (2).
5, the performance test apparatus based on heat exchanger fin unit according to claim 1, it is characterized in that: data test/acquisition system (23) comprises a data collecting instrument (21) and computing machine (22), thermopair (12) directly is connected with the capture card of data collecting instrument (21) by lead-in wire with two platinum resistance (17,18) in the test section (7), data collecting instrument (21) is connected with computing machine (22) by RS232 port data line, as signal output part, each signal is by the acquisition interface immediately monitoring by computing machine (22).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100291197A CN100495005C (en) | 2006-07-20 | 2006-07-20 | Performance tester based on heat exchanger fin unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100291197A CN100495005C (en) | 2006-07-20 | 2006-07-20 | Performance tester based on heat exchanger fin unit |
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| CN1888885A true CN1888885A (en) | 2007-01-03 |
| CN100495005C CN100495005C (en) | 2009-06-03 |
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| CNB2006100291197A Expired - Fee Related CN100495005C (en) | 2006-07-20 | 2006-07-20 | Performance tester based on heat exchanger fin unit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359976A (en) * | 2011-08-02 | 2012-02-22 | 浙江大学 | Device and method for detecting heat radiation performance stability of automobile air conditioner heat exchanger |
| CN104931827A (en) * | 2015-06-15 | 2015-09-23 | 浪潮集团有限公司 | Heat pipe cooling system performance test module and method |
| CN105510379A (en) * | 2015-11-24 | 2016-04-20 | 北京航空航天大学 | A system for testing heat transfer properties of a fin of a heat exchanger |
| CN107255652A (en) * | 2017-06-02 | 2017-10-17 | 中国科学院合肥物质科学研究院 | The heat exchanger performance testing device tested under low temperature in the range of large Reynold number |
| CN108645643A (en) * | 2018-07-13 | 2018-10-12 | 上海交通大学 | Fluid heat transfer experimental rig, fluid heat transfer testing equipment and test method |
-
2006
- 2006-07-20 CN CNB2006100291197A patent/CN100495005C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359976A (en) * | 2011-08-02 | 2012-02-22 | 浙江大学 | Device and method for detecting heat radiation performance stability of automobile air conditioner heat exchanger |
| CN104931827A (en) * | 2015-06-15 | 2015-09-23 | 浪潮集团有限公司 | Heat pipe cooling system performance test module and method |
| CN105510379A (en) * | 2015-11-24 | 2016-04-20 | 北京航空航天大学 | A system for testing heat transfer properties of a fin of a heat exchanger |
| CN105510379B (en) * | 2015-11-24 | 2018-07-06 | 北京航空航天大学 | A kind of system of the heat transfer property for the fin for being used to test heat exchanger |
| CN107255652A (en) * | 2017-06-02 | 2017-10-17 | 中国科学院合肥物质科学研究院 | The heat exchanger performance testing device tested under low temperature in the range of large Reynold number |
| CN108645643A (en) * | 2018-07-13 | 2018-10-12 | 上海交通大学 | Fluid heat transfer experimental rig, fluid heat transfer testing equipment and test method |
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|---|---|
| CN100495005C (en) | 2009-06-03 |
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Application publication date: 20070103 Assignee: Chuangdao Air-conditioner Co., Ltd., Jiangsu Assignor: Shanghai Jiao Tong University Contract record no.: 2010320000419 Denomination of invention: Performance tester based on heat exchanger fin unit Granted publication date: 20090603 License type: Exclusive License Record date: 20100420 |
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