CA2416385C - Refrigerant composition - Google Patents

Refrigerant composition Download PDF

Info

Publication number
CA2416385C
CA2416385C CA 2416385 CA2416385A CA2416385C CA 2416385 C CA2416385 C CA 2416385C CA 2416385 CA2416385 CA 2416385 CA 2416385 A CA2416385 A CA 2416385A CA 2416385 C CA2416385 C CA 2416385C
Authority
CA
Canada
Prior art keywords
hfc
refrigerant
weight
lower alkyl
composition
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.)
Expired - Fee Related
Application number
CA 2416385
Other languages
French (fr)
Other versions
CA2416385A1 (en
Inventor
James W. Flowers
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.)
Messer Canada Inc
Original Assignee
Linde Canada Ltd
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 Linde Canada Ltd filed Critical Linde Canada Ltd
Priority to CA 2416385 priority Critical patent/CA2416385C/en
Priority to AU2003294544A priority patent/AU2003294544B2/en
Priority to JP2004565870A priority patent/JP2006513283A/en
Priority to PCT/CA2003/002016 priority patent/WO2004063307A1/en
Publication of CA2416385A1 publication Critical patent/CA2416385A1/en
Application granted granted Critical
Publication of CA2416385C publication Critical patent/CA2416385C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02Materials undergoing a change of physical state when used
    • C09K5/04Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
    • C09K5/041Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems
    • C09K5/044Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds
    • C09K5/045Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds containing only fluorine as halogen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

A refrigerant composition comprises a mixture of three HFC (hydrofluorocarbons) refrigerants, namely, HFC 32, HFC 125 and HFC 134a. A lower alkyl alcohol such as ethanol is included in the mixture to improve miscibility in commonly-used lubricants such as mineral oil by altering the viscosity of the entrained oil within the operating air-conditioning system. Optionally, a fifth component may be added, namely ahydrocarbon based refrigerant such as isobutane or propane, to further improve characteristics of refrigerant. The resulting refrigerant is similar in characteristics to R22, and is compatible with existing air-conditioning and refrigeration devices originally for use with R22 refrigerant without system modifications.

Description

REFRIGERANT COMPOSITION
BACKGROUND OF THE INVENTION

FIELD OF THE INVENTION

s The invention relates to a refrigerant composition for use in a compressor-type refrigerating apparatus. Specifically, the invention relates to refrigerants containing HFC compounds in place of environmentally-harmful chlorinated flourocarbons.

io DESCRIPTION OF THE PRIOR ART

Conventional commercially-available refrigerants typically comprise a mixture of various components including one or more fluorocarbons. Such refrigerants are widely used as refrigerants in air conditioning systems, refrigerators and other heat 15 pump applications. Conventional heat pumps operate on a principal of cyclic compression and decompression of the refrigerant, which may undergo a phase conversation between liquid and gas. Heat is absorbed or removed from a space by changing the refrigerant from a liquid to a gas or otherwise reducing the pressure of the refrigerant. The refrigerant is then compressed within a compressor, which 20 significantly raises the pressure of the vapour. The high pressure vapor is conveyed to a condenser, and undergoes a heat exchange with a cooler medium such as the surrounding air. The release of heat energy to the surrounding air causes the refrigerant to drop in temperature and condense to a liquid. The cooled liquid refrigerant is transmitted back to the cool side, and passed through an 2s expansion valve which lowers the pressure of the liquid causing the liquid vaporize by absorbing heat energy from the surrounding air, thus commencing the cycle again.

It has been found that certain refrigerants possess good qualities for use with 30 such a system, owning to their ability to undergo a phase change at or near the temperatures usuaiiy found at the warm and cool sides of the heat pump, under pressures readily obtainable by an inexpensive compressor. Until recently, chlorofluorocarbons were in widespread use, eithei in the forrr nt rs singie compound or isotropic mixtures containing one or more chlorofluorocarbons (CFCs). In recent years, environmental considerations riave placed severe restrictions on the use of CFCs, as these have been found to cause damage to the earth's ozone layer. In response to this challenge, alternative refrigerants were developed containing hydrofluorocarbons ( HFC') refrigerants, thus avoiding the use of environmentally-harmfui chlorinated compounds. The prior art discloses io various multi-component HFC mixtures. By way of severai representative examples:

US Patent 6,035,648 to Hickman et al, discloses a refrigerant mixture consisting of R-32, R-125 and R-134a in the approximate ratio of 25/25/50 A
different mixture of the same three components is disclosed in US Patent 5, 736,063, to Richard et a/. This reference also discloses two component mixtures, and mixtures containing propane as a component, as well as carbon dioxide. US
Patent 5,709,092 to Shiflett discloses a mixture of the same three components, in the range of 5-59% HFC 125; 5-59% HFC 32; and 5-35% HFC 134 or 134a.
Propane also is disclosed as an additional component A mixture ot the same three components is disclosed in US Patent 5,647,224, to Kushiro et at.

Desirably, a refrigerant should be chemically stable, possessed of low toxicity and suitable for use in a mechanical system in which the refrigerant is exposed to lubricants and metals, without causing corrosion or excessive lubricant degradation.

In a further aspect, a refrigerant should be miscible with the lubricants used in a variety of refrigerating devices. Conventional CFC-free refrigerants are not suitable for use in a range of refrigerating devices but rather they typically are formulated to work in a single type of device. Since many refrigerating devices employ mineral oil as a lubricant, the refrigerant shouiti be rrnscible with `nis lubricant. Conventional HFC refrigerants tend to be not miscible or easily miscible with mineral oil and are thus not suitable for such uses. It is desirable to provide a CFC-free refrigerant suitable for use in a number of different types of refrigerating devices, in order to simplify fabrication and maintenance of a variety of such devices.

SUMMARY OF THE INVENTION

The present invention comprises a mixture of three HFC refrigerants components, along with an alcohol. The alcohol must have a suitable critical temperature which is compatible with the use of the refrigerant. Preferrably a lower to alkyl or branched alkyl alcohol including methanol or ethanol. The most preferred is ethanol, preferably anhydrous ethanol. The function of the alcohol is to improve miscibility with lubricants typically found in refrigerating devices, in particular minerai oils of the type used in the mechanical components of existing R22 based refrigerating systems. The three HFC components are HFC 32, HFC 125 and HFC
1s 134a. Optionally, the mixture includes a fifth component, namely a lower alkyl hydrocarbon such as R290 (propane) or isobutane. The refrigerant of the present invention is formulated into a composition compatible with and suitable for use in at least one conventional refrigerating device and preferrably several such devices, i.e.
having a vapour pressure or critical temperature which is similar to that of 20 conventional refrigerating devices.

Without wishing to be restricted to any theory, it is believed that the addition of the alcohol component enhances the performance of the composition by altering the viscosity of the oil that becomes entrained within the refrigerant during 25 operation of the refrigerating device.

The composition of the present invention comprises HFC 32 in the amount of about 20% to 25% by weight; HFC 125 in the amount of about 22% to 28% by weight; HFC 134a in the amount of about 48% to 54% by weight; and a 30 lower alkyl alcohol in the amount of about 0.08 to 1% by weight.

In one aspect, the invention is a refrigerant composition comprising HFC 32 from about 22% to 24% by weight; HFC 125 in the amount of about 24 to 26 by weight and HFC 134a, in the amount of about 49% to 53.3% by weight; and lower alkyl alcohol in the amount of about 0.6% to 0.8% by weight.

In one aspect, the refrigerant comprises the following formulation:
In a still more preferred embodiment, the mixture comprises HFC 32 at about 23% by weight; HFC 125 at about 25% by weight, HFC 134a at about 51.3% by weight and ethanol in the amount of about 0.7% by weight.

Optionally, an additional component is added to the mixture, namely a lower alkyl hydrocarbon in the amount of between 0% and 4.0% by weight. "Lower alkyl"
means a straight or branched (in the case of C3-C6) chain Cj-C6 with a preferred species being isobutane propane with propane being most preferred. Suitable alkyls are those which exist in the gas phase at room temperature and atmospheric pressure. Another suitable lower alkyl is isobutane.
The term "about" used herein means a variation of 0.1 from the expressed percentages.

DETAILED DESCRIPTION OF THE INVENTION
Having generally described the invention, a detailed and specific example is presented which is within the scope of the invention but which is merely illustrated of the invention.

Examale A refrigerant composition SP22C was formulated, consisting of a mixture of HFC 32 (difluoromethane) at 23% by weight, HFC 125 (pentafluoroethane) at 25%
by weight, HFC 134a (1, 1, 1, 2 tetrafluoroethane) at 51.3% by weight; and 3o anhydrous ethanol at 0.7% by weight. In the example, it is believed that all of the above amounts were within 0.1 % of the expressed amount.
The order of introducing components into the composition is not of any consequence. Conventional methods were used to formulate, store and use the composition.

The mean boiling point (BP) of the above mixture was measured at - 40.1 deg. C @ 1 atm.

The criticai temperature (CT) of the mixture was determined to be 86.0 deg.
C.
For purposes of comparison, the corresponding BP of the common refrigerant R22 is - 40.8 deg. C@ 1 atm.

In testing, the above composition was found to be miscible in the following mineral oils: 4GS and 3GS, which are typically found in existing R22 based systems. The composition was also found to be effective as a refrigerant working fluid.

Table 1 shows data generated from testing on R22, a prior art CFC-containing refrigerant. The test was carried out over four cycles, at an ambient temperature of 82 F. Tables 2 through 5 data generated from similar tests carried out on the composition of the above example, (identified as composition SP 22 C) indicating level of performance for the present formulation.

Tables 2, 3 and 4 show test data relating to testing of SP 22 C running in the same R22 rated unit as the data of Table 1, at three different ambient temperature and humidity conditions. Hence, test A (Table 2) was carried out an indoor dry and wet bulb temperature condition of 80 and 67 respectively and an outdoor dry bulb temperature of 95 (all in Fahrenheit). In test B (Table 3) the respective conditions were 80 /57 and 82 . In test C (Table 4) the comparative conditions were 80 and 82 . In test D (Table 5) the comparative conditions were: 80 /57 and 82 .
The test data of Figure 5 (test D) is a "cycle test" to verify consistency in the test data. That is, the test machine charged with compound SP 22 C is cycled on and off in predetermined intervals to ensure that the data generated in the previous tests is repeatable with little or no deviation, to illustrate that such a unit can cycle independently with little loss of efficiency.

s Although this invention has been described by way of a preferred embodiment, it will be seen by one skilled in the relevant art or arts that the full scope of this invention includes any number of variations of and departures from the described non-limiting example.
Table 1 Unit U 11 HIRA018506D & F2RP024N06B
Date: 6103102 Voltage: 208 VAC 60 Hz Run: 016 Test D. 80157-82"
Barometer: 29.09" Hg Charge: R- 22, 3.90 lbs y yc yc e off on otf on off on off on 0 Locatlon Average Average Average Average Average Average Average Arerage Units 1 Suwon PSIG 145.73 82.00 145.73 80.74 146.21 79.08 146.16 8020 PSIG
2 SaWralion Temp. N/A 48.79 WA 48.02 N/A 46.95 N/A 47.68 Deg. F
3 Suotion @ Compressor 101.05 68.31 95.79 69.31 94.01 69.23 93.46 70.09 Deg. F
4 Superheat NIA 19.52 N/A 21.29 NIA 2228 N/A 22.41 Deg_ F
Discharge C Comp. PSIG 148.50 227.31 148.53 226.97 148.98 226.82 148.60 226.72 PSIG
6 Saturation Temp. N/A 110.28 N/A 110.18 WA 110.13 N/A 110.10 Deg.F
7 Discharge @ Comp. 97.28 159.39 94.83 156.95 94.15 156.90 93.79 155.90 Deg. F
8 Uquid @ OD Colt PSIG 148.03 212.34 148.10 212.82 148.59 213.77 148.40 212.88 PSIG
9 Saturation Temp. N/A 105.52 NIA 105.68 WA 105.99 WA 105.70 Deg. F
Leaving OD Cod 80.59 94.34 80.56 94.17 80.71 94.29 80.65 94.18 Deg. F
11 Liquld (p? ID Coil PSIG 148.58 211.00 148.71 211.30 148.96 212.95 148.59 211.88 PSIG
12 Satura8on Temp. WA 105.08 N/A 105.18 N/A 105.72 N/A 105.37 Deg.F
13 Liquid @ ID Coil 79.76 93.45 80.16 93.27 80.31 93.43 80.29 93.29 Deg. F
14 Subcool NIA 11.63 N/A 11.91 N/A 12.29 N/A 12.08 Deg. F
Vapor a iD Coi PSIG 147_25 84_72 147.26 83.54 147.73 81.79 147.69 82.88 PSIG
15.1 Saturation Temp. N/A 50.44 N/A 49.72 N/A 48.66 N/A 49.32 Deg. F
17 Leaving ID Coil 75.85 63.51 76.49 65.67 76.85 65.72 76.95 66.24 Deg. F
18 Compressor Dome 113_64 102.62 106.13 97.75 103.52 95.99 102.60 95.75 Deg. F
19 Compressor Surnp 120.09 111.21 111.16 105.08 108.28 103.37 107.37 102.64 Deg.F
Inlet Grid 80.16 79.92 80.14 79.92 80.13 79.98 80.14 79.95 Deg. F
20.1 Discharge Grid 71.72 63.24 72.69 63.30 73.00 62.86 73.25 63.36 Deg. F
21 Tunnel Grid 67.95 66.51 70.53 67.11 71.13 67.07 7129 67.34 Deg. F
Indoor Dry Bulb 80.08 79.85 80.05 79.85 80.04 79.86 80.04 79.87 Deg.F
26 indoor Wet Bulb 59.21 59.09 59.37 59.45 59.67 59.59 60.46 63.31 Deg. F
27 E102.3 OD Dry Bulb 81.90 82.26 81.93 82.33 81.91 82.31 81.93 82.32 Deg. F
28 E102.4 OD Wet BuPo 60.02 60.20 60.12 60.40 60.15 60.29 60.20 60.40 Deg. F
29 Discharge Dry Bulb 67.36 69.79 69.37 70.71 69.87 70.93 70.12 71.18 Deg. F
Discharge Wet Bulb 55.17 55.48 55.95 56.11 56.27 56.11 5624 56.30 Deg. F
31 Blowar Watts 0.00 0.36 0.00 0.35 0.00 0.35 0.00 0.35 KW
32 Condensing Unit Watts 0.00 1.55 0.00 1.56 0.00 1.57 0.00 1.57 t(W
33 Net Air Side Capadty N/A 209.92 N/A 210.08 N/A 210.38 WA 210.4 Votts 34 Voltage B to C N/A 208.58 N/A 208.77 N/A 209.09 N/A 209.19 Volts Voltage L2 to N N/A 119.30 N/A 119.35 N!A 119.51 NIA 119.52 Volts 36 Voltage L3 to N NIA 121.88 N/A 122.07 N/A 122.28 N/A 122.33 Volts 37 AMPS 2 N/A 9.28 WA 9.30 N/A 9.29 N/A 9.30 Amps 38 AMPS 3 N/A 9.29 WA 9.31 N/A 9.31 N/A 9.33 Amps 39 kWatts TOTAL N/A 1.91 N/A 1.91 N/A 1.92 WA 1.92 KW
FREQ. N/A 59.91 WA 59.93 N/A 59.90 N/A 59.94 Hz Mas,...acturer: Protocol Table 2 Unit: M0 HIRA0186060 & F2RP024N06B
Date: 6/30102 Voltage: 208 VAC 60 Hz Run: # 1 A Test A 80/67--86'"
Barometer. 29.06" Hg Charge: SP-22C, 3.70 lbs 2 Saturatlon Temp. 51.15 Deg. F
3 Suction @ Compressor 62.30 Deg. G
4 Superheat 11 16 Deg. F
Discharge Q Comp. PSIG 272.00 PSIG
6 Saturation Temp. 113 00 Deg `
7 Discharge Comp 182.08 Deg..`m 8 Liquid OD Coil PSIG 259.47 ?SIG
9 Satura4on Temp. 11200 Deg. `-Leaving OD Coil 110.90 Deg, c ff 11 Liquid @ ID Coil PSIG 258.37 PSiG
12 Saturation Temp 112.00 ;,7eg. F
13 Liquid (M ID Coil 109.42 L")eq. F
14 Subcool 2.62 :3eg. F=
Vapor @ ID Coil PSIG 69 10 PSIG
15.1 Saturabon Temp. 51 ,50 L':e.g F
17 Leaving ID Coi 60.90 Deg F
18 Compressor Dome 102.38 ~3eg 19 Compressor Sump 119.5G t'~eq, F~
Tunnel Grid 65.95 -D eg r"
22 Discharge Airflow 877.90 sCP,i 23 Statc 7 1 L ir:= ~late, 24 Condensate from ID Coil 15.46 Indoor Dry Bulb 80.01 Eyep 26 Indoor Wet Bub 67 ~2 Ueg. l 27 E102.3 OD Dry Bulb 95 O t ~-" eg F
28 E102.4 OD Wet Bulb 67.85 U, eg F }
29 Discharge Dry Bulb 64,78 !;e41 Uscharge Wet Bulb 61 3G ;->eg 31 Blower Watts 0 34 IA;
32 Condensing Unit Watta l'u 33 Voltage A to B 206.86 "-,ci x 34 Voltage B to C 207-'0 ~'oits Voltage L2 to N i 18 27 'Joits 36 VoMage L3 to N 122 04 Inlts 37 AMPS 2 9 93 i',mps 39 kWatto TOTAL 2_c:,4 40 FREQ. 59 98 41 Gross Air Side Capacity 1831,08 BtL, rt 42 Net Air Side Capacity 17150.4 Btu , H
43 EER 849 Htt. Cv1!' -t 44 Caic. Sensible Cap 14575.07 Ste.
Sensible + Condensate 16623.52 Gt.
Conderisate Balance 103.1695 % Air r Gond.

MaTMifadurer ProtooOt Table 3 Unit: M* H1RA018508D & F2RP024N068 Date: 6131102 Voltape: 208 VAC 60 Hz Run: 8 2A Test B. 80167-52"
Barometer: 29.02" Hg Charge: 3P-22C, 3.70 fbs Avwmo 2 Saturatbn Temp. 48.05 Dog. F
3 Suctlon (~ Compressor e6.a9 Deq. F
4 Supert-eat 20.04 Dog. F
Dlscharge C Comp. P84G 231.46 PSIG
6 SaiuraUon Temp. 104 Deg. F
7 Discharge 0 Cornp. 155.37 Dog. F
8 uquid 0 OD Co9 PSIG 217.43 P8IG
9 Saturadon Temp. 99.2 Deg. F
i.eaving OD CoN 98.19 DeB. F
11 l.iquid DID Col PSIG 216.30 PSIG
12 Satura6on Temp. 99 Deg. F
13 Liquid @ ID Coi! 97.37 Deg. F
14 Subcool 1.63 Deg. F
Vapor C ID CoG PSIG 84.10 PSIG
15.1 Saturation Temp. 49.5 Dog. F
17 Leaving ID Co5 62.05 DeQ. F
18 Compressor Dome 98.86 Deg. F
19 Compressor Sump 113.88 Dog. F
21 Tunnel Giid 65.28 Dog. F
22 Disoharpe Airflow 875.4 SCFM
23 Static 0.1 In Water 24 Condensate t`rom ID CotR 25.15 Oz Indoor Dry Bufb 80,01 Dog. F
26 Indoor Wet BuAb 67.01 Des. F
27 E402.3 OD Dry Bulb 82.01 Dog. F
28 E102.4 OD Wet Bdb 62.96 Deg. F
29 Discharge Dry Bub 64.24 Dog. F
Discharge Wet Bul6 60.53 Dog. F
31 Blower Watts 0.34 KW
32 Condensing Unft Watts 1.67 KW
33 Voltape A to B 208.74 Vob 34 Voltage B to C 207.74 Volts VoftaQe L2 to N 123.57 Vvlts 36 Vottage L3 to N 118.43 Voles 37 AMPS 2 9.32 Amps 38 AMPS 3 9.33 Amps 39 kWatts TOTAL 1.91 KW
FREQ. 59.92 Hx 41 Gross Air Side Capacity 20070.1 Btq I H
42 Net Air Side Capacity 18909.6 Btu / H
43 EER 9.9 ft/W=H
44 Calc. Sensible Cap. 15045.48 Btu Seneible + Condensate 18377.86 Btu Condensate Balance 102.8934 % Air / Cond.

Marwtacturer: Protocol Table 4 Unit: M 31i1RA0185050 & F2RP024N06B ~
Date: 5131102 Voltage: 208 VAC 60 Hz Run: # 3A Test C, 80167--82"' Barometer: 28.94" tig Charge: SP-22C, 3.70 tbe 2 Saturation Temp. 44.60 7eg. F
3 Suction @ Compressor 62_53 Deg. F
4 Superheat 17 93 Deg, F
Discharge @ Comp. PSIG 229.02 PSIG
6 Saturation Temp. 104.00 i3eg. F' 7 Discharge @ Comp. 153.69 Deg. F
8 Liquid @ OD Coil PSIG 215.79 PSIG
9 Saturation Temp, 98,90 ~)eg. F
Leaving OD Coil 97.54 Deg. F
11 Liquid @ ID Coil PSIG 215.08 ?SIG
12 Saturation Temp. 99.80 t)eg. F
13 Liquid @ fD Coil 96.93 Jeg. F
14 Subcool 2 87 0eg. F
Vapor @ ID Coil PSIG 80.96 ?'SiG
15.1 Saturation Temp. 45.80 Deg. F
17 Leaving ID Coil 59,49 :)eg. F
18 Compressor Dome 96.92 ~)eg. F
19 Compressor Surnp 112.34 Deg. fi Inlet Grid 8(?.13 :~eg F
20.1 Discharge Grid 61.54 :'aeg F
21 Tunnel Grid 62.72 :::eg: F
22 Discharge Airflow 877.70 c'CFM
23 Static 0.10 In Water 24 Gondensate from ID Coil N/A ?a Indoor Dry Bulb 80.00 L>eg. F
26 Indoor Wet Bulb 58,79 Dey F
27 E102.3 00 Dry Bulb 82.00 Geg. F
28 E102.4 OD Wet Bulb 60 31 Deg F
29 Discharge Dry Bulb 61.57 ljeg. F
Discharge Wet Bulb 51 73 Deg F
31 Blower Watts 0 34 '<Vv' 32 Condensing Unit Watis 1.56 KW
33 Vottage A to B 208.31 ','nits 34 Voltage B to C 206.51 Volts Voltage L2 to N 118.26 c,its 36 Voltage L3 to N 120.97 VoMts 37 AMPS 2 9.23 timps 38 AMPS 3 9 28 Arnps 39 kWatts TOTAL 1 9C ~(w FREQ. 59 97 Hz 41 Gross Air Side Capacity 18438_ 1 8tu 1' H
42 Net Air Side Capacity 17277.7 Bti.a f H
43 EER 9.09 9tu iH

M. aaurer. Protocol Table 5 u-it: M Y HIRA0185080 & F2RP024N06b Date: 5171102 Voltage: 208 VAC 60 Hz Run: 114A Teat 0, 80167--821' Barometer: 28.94" Hg Charge: SP-22C, 3.70 lbs oR On o(f on Off on otf on 0 Location Average Avrrage wrage verape vwru}~a Avemge Average Average I
2 SatutNion Temp. N/A 45.32 N/A 44.85 NlA 44.80 N/A 44 55 3 Suction a Compreseor 96.21 63.76 91.32 64.05 90.38 64.10 89.96 64.20 4 Superheat N/A 18.43 N/A 19.20 N/A 19.30 N/A 1965 Disch6rg Comp. PSIG 151.04 229.98 151.30 229.83 151.48 228.98 151.80 22952 6 Satutation Temp. N/A 104.00 N/A 103.90 N/A 103.10 N/A 103.75 7 Diacharge @ Comp. 95,88 145.82 85.10 144.36 94.69 143.80 94.53 143.81 8 l.iquid 00 Coil PSIG 149.20 216.83 150.93 215,90 149.92 216.04 150.15 216.55 9 SaturaUon Temp. N/A 98.10 N/A 97.80 N/A 97.85 N/A 98.05 Leaving 00 Coit 79.84 97.42 79.89 97.28 79.90 97,09 80.31 97.18 11 Liquid @ ID Coil PSIG 150.75 214.95 151.00 215.32 151.22 214.62 151.46 215.24 12 Saturation Temp. N/A 97.65 N/A 97.70 N/A 97.55 N!A 97.7 13 Liquid @ ID Coil 79.76 96.38 79.75 96.28 79.99 96.11 79.98 96 18 14 Subcool N/A 1.01 N/A 1.42 N/A 1.44 N/A 1.52 Vapor @ ID Coil PSIG 149.66 82.26 149.89 81.38 150.09 81.31 150.36 80_88 15.1 Saturation Temp. N/A 46.60 N/A 48.10 N/A 46.10 N/A 45.95 17 Leaving ID Coii 77.21 61.89 77.42 61.87 77.67 61.83 77.67 81.89 18 Compressor Dome 105.67 96.91 100.55 93.90 99.18 93.06 98.63 92.89 19 Compressor Sump 109.85 102.87 104.36 99.74 102.88 98.90 102.29 98.54 Inlet Grid 80.13 79.89 80.10 79.89 80.11 79.87 80.09 79.85 20.1 Discharge Grid 72.50 64.17 72.87 63.99 73 1T 63.96 73.38 63.97 21 Tunnel Grid 69,00 67.29 71.40 67.71 71.89 67.80 72.06 67.97 Indoor Dry Bulb 80.05 79.88 80.03 79.89 80.03 79.88 80.03 79.88 28 Indoor Wet Bulb 59.24 59.08 59.27 58.80 59.41 58,91 59.53 59.35 27 E102.3 OD Dry Bulb 81.89 82.38 81.90 82.36 81.91 82.32 81.92 82.33 28 E102.4 OD Wet Bulb 60.48 80.76 60,49 80.45 60.65 60.49 61.02 61.92 29 Discharge Dry Bulb 68.20 70.39 89.64 70.99 70.21 71.08 70.44 71.34 Discharge Wet Bulb 55.51 55.60 55.99 55.49 56.04 55.51 58.00 55.81 31 Blower Watts 0.00 0.35 0.00 0.35 0.00 0.35 0.00 0,35 32 Condensing Unit Watta 0.00 1.57 0.00 1.58 0.00 1.57 0.00 1.57 33 Vohage A to B N/A 208.47 N/A 208.94 N/A 209.72 N/A 209.35 34 Voltage B to C N/A 207.17 N/A 207.47 N/A 208.18 N/A 208.25 Vohage L2 to N N/A 118.44 N/A 118.65 N/A 119.08 N/A 118 82 36 Vohage L3 to N N/A 121.39 N/A 121.59 N/A 122.02 N/A 122.42 37 AMPS 2 N/A 9.31 N/A 9.29 N/A 9.32 N!A 9.33 38 AMPS 3 N/A 9.37 N/A 9.33 N/A 9.35 N/A 9.35 39 kWatts TOTAL N/A 1.92 N/A 1.91 N/A 1.92 N/A 1.92 FREQ. N/A 80,00 N/A 59.97 N/A 80 N/A 60.00

Claims (18)

1. A refrigerant composition comprising a mixture of, by weight, about 20% to 25% HFC 32; about 20% to 28% HFC 125; 48% to 54% HFC 134a and about 0.008% to 1% by weight of a lower alkyl alcohol, formulated into a composition compatible with a refrigerating device.
2. A refrigerant composition as defined in claim 1 comprising from about 22%
to 24% by weight of HFC 32; about 24% to 26% by weight of HFC 125;
about 49.0% to 53.3% by weight of HFC 134a; and about 0.6% to 0.8% by weight of a lower alkyl alcohol.
3. A composition as defined in claim 1, wherein said lower alkyl alcohol is anhydrous.
4. A refrigerant composition as defined in claim 1, wherein said lower alkyl alcohol comprises methanol or ethanol.
5. A refrigerant composition as defined in claim 1, wherein lower alkyl alcohol comprises anhydrous ethanol.
6. A refrigerant composition as defined in claim 1, further comprising a lower alkyl hydrocarbon present in an amount up to 4.0% by weight.
7. A refrigerant composition as defined in claim 6, wherein said lower alkyl is a straight or branched chain C1-C6 alkyl.
8. A refrigerant composition as defined in claim 7, wherein said hydrocarbon based refrigerant is selected from isobutane and propane.
9. A composition as defined in claim 8, wherein said alkyl is propane.
10. A refrigerant composition as defined in claim 1, comprising from about 20 -26% by weight of HFC 32; about 22 - 28% by weight of HFC 125; about 48-54% by weight of HFC 134a; and about 0.2-1.0% by weight of said lower alkyl alcohol.
11. A composition as defined in claim 10, comprising about 23% by weight HFC
32; about 25% by weight HFC 125; about 51.3% by weight HFC 134a and about 0.7% by weight of lower alkyl alcohol.
12. A composition as defined in claim 11, wherein lower alkyl alcohol is selected from ethanol and methanol.
13. A refrigerant as defined in claim 12, wherein said lower alkyl alcohol is ethanol.
14. A refrigerant composition comprising by weight about 20 to 25% HFC 32;
about 22 to 28% HFC 125; 48 to 54% HFC 134a; about 0.6% to 1% lower alkyl alcohol and up to about 4% of a lower alkyl hydrocarbon compound.
15. A composition as defined in claim 14, wherein said lower alkyl alcohol comprises a C, to C4 straight or C3-C4 branched chain alkyl alcohol.
16. A composition as defined in claim 15, wherein said lower alkyl alcohol is selected from methanol and ethanol.
17. A composition as defined in claim 14, wherein said lower alkyl hydrocarbon is selected from isobutane and propane.
18. A composition as defined in claim 14, wherein said lower alkyl alcohol is anhydrous.
CA 2416385 2003-01-16 2003-01-16 Refrigerant composition Expired - Fee Related CA2416385C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CA 2416385 CA2416385C (en) 2003-01-16 2003-01-16 Refrigerant composition
AU2003294544A AU2003294544B2 (en) 2003-01-16 2003-12-23 Refrigerant composition
JP2004565870A JP2006513283A (en) 2003-01-16 2003-12-23 Refrigerant composition
PCT/CA2003/002016 WO2004063307A1 (en) 2003-01-16 2003-12-23 Refrigerant composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2416385 CA2416385C (en) 2003-01-16 2003-01-16 Refrigerant composition

Publications (2)

Publication Number Publication Date
CA2416385A1 CA2416385A1 (en) 2004-07-16
CA2416385C true CA2416385C (en) 2008-12-23

Family

ID=32660920

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2416385 Expired - Fee Related CA2416385C (en) 2003-01-16 2003-01-16 Refrigerant composition

Country Status (4)

Country Link
JP (1) JP2006513283A (en)
AU (1) AU2003294544B2 (en)
CA (1) CA2416385C (en)
WO (1) WO2004063307A1 (en)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5554311A (en) * 1992-02-18 1996-09-10 Idemitsu Kosan Co., Ltd. Lubricant for refrigerating machine employing refrigerant comprising hydrofluoroethane
JPH05271100A (en) * 1992-03-26 1993-10-19 Katsuhiro Kawase Cooling composition applicable to human skin
JPH07173460A (en) * 1993-12-20 1995-07-11 Sanyo Electric Co Ltd Refrigerant composition and refrigerating equipment
JPH08200866A (en) * 1995-01-19 1996-08-06 Aisin Seiki Co Ltd Air conditioner
JPH08233386A (en) * 1995-03-01 1996-09-13 Aisin Seiki Co Ltd Heat exchanger
JP3598310B2 (en) * 1995-04-25 2004-12-08 金尾 洋子 HFC mixed refrigerant
US6035648A (en) * 1998-08-03 2000-03-14 York International Corporation Method of charging and recharging a refrigeration system containing a ternary refrigerant
JP2002003826A (en) * 2000-06-19 2002-01-09 Nippon Kontekku:Kk Refrigerant substitute for chlorine-based cfc and method for manufacturing the same
US6357257B1 (en) * 2001-01-25 2002-03-19 Praxair Technology, Inc. Cryogenic industrial gas liquefaction with azeotropic fluid forecooling

Also Published As

Publication number Publication date
AU2003294544A1 (en) 2004-08-10
JP2006513283A (en) 2006-04-20
AU2003294544B2 (en) 2007-07-05
CA2416385A1 (en) 2004-07-16
WO2004063307A1 (en) 2004-07-29

Similar Documents

Publication Publication Date Title
ES2098444T5 (en) COOLING COMPOSITIONS.
JP5674157B2 (en) Trans-chloro-3,3,3-trifluoropropene for use in cooler applications
US6814884B2 (en) Method of transferring heat using a working fluid containing 1,1,1,3,3-pentafluorobutane as refrigerant or heat transfer medium
KR20190086672A (en) Coolant, heat transfer composition, method and system
JP2576161B2 (en) Working medium mixture
US20090095014A1 (en) Working fluid of a blend of 1,1,1,2-tetrafluoroethane, 1,1,1,2,3,3,3-heptafluoropropane, and 1,1,1,3,3,3-hexafluoropropane and method and apparatus for using
ES2525409T3 (en) Refrigerant composition
US20040021124A1 (en) Composition of refrigerant mixtures for high back pressure condition
JPS63308085A (en) Operation medium mixture
US6649079B2 (en) Composition of refrigerant mixtures for low back pressure condition
US6669862B1 (en) Refrigerant composition
JPS63205386A (en) Cooling medium and machine having circuit cooled by cooling medium
WO1997029162A1 (en) Difluoromethane/hydrocarbon refrigerant mixture and refrigeration cycle plant using the same
US20090049856A1 (en) Working fluid of a blend of 1,1,1,3,3-pentafluoropane, 1,1,1,2,3,3-hexafluoropropane, and 1,1,1,2-tetrafluoroethane and method and apparatus for using
CA2416385C (en) Refrigerant composition
Kharat et al. Experimental study of alternative refrigerants to replace R134a in a domestic refrigerator
JPH07502774A (en) Compositions useful as refrigerants
JPH02240186A (en) Halogenated hydrocarbon mixture
JPS63305185A (en) Working medium mixture
KR100648412B1 (en) Low temperature alternative refrigerant composition
JP2536560B2 (en) Working medium mixture
KR100582824B1 (en) The environmental refrigerant mixture for car air conditioner
JPH01139683A (en) Working medium mixture
JPH01139682A (en) Working medium mixture
JPS63305186A (en) Working medium mixture

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20140116