Refrigerant Efficiency Comparison

ANSI/AHRI Standard 540-2004
ANSI/AHRI Standard 540 (formerly ARI Standard 540) 2004 Standard For Performance Rating Of Positive Displacement Refrigerant Compressors And Compressor Units ... Access Doc

Variable Refrigerant Flow Systems Vs. Geothermal Water Source ...
1 Presented by: Matt Green Variable Refrigerant Flow Systems vs. Geothermal Water Source Heat Pump Systems Section I: Case Study –Northern Illinois Food Bank ... Access Doc

Comparative Properties And Efficiency Of R-421A For Retrofit ...
Comparative Properties and Efficiency of R-421A for Retrofit Use to Replace R-22 JMC/RMS-1312a Retrofit Refrigerant Options Comparison without Adjustment for Pressure-Temperature Differences..9 Figure 3: Relative COP Degradation with Increasing Condensing Temperature for ... Read Here

ASHRAE’s Apples To Apples Comparison Proves Hydronics ...
For years Variable Refrigerant Flow (VRF) manufacturers have been touting their systems’ superior energy efficiency over hydronics without providing the supporting data. ... Access Document

A Review Of Alternative To R134a (CH F) Refrigerant
Usually for enhancing efficiency, by a reversible phase transition from a liquid to a gas. refrigerant above that of the surroundings, A performance comparison of vapour- ... View Doc

Heat Pipe - Wikipedia, The Free Encyclopedia
A heat pipe is a heat-transfer device that combines the principles of both thermal conductivity and phase transition to efficiently manage the transfer of heat between two solid interfaces. ... Read Article

Residential Refrigerant Charge Testing And Related Issues
Residential Refrigerant Charge Testing and Related Issues Page 2 2013 California Building Energy Efficiency Standards December 2011 Table of Contents ... Return Document

Are Trane Air Conditioners Any Good? - YouTube
Are Trane air conditioners any good? I've got an HVAC tech recommending that I install it. Trane is one of the top selling air conditioner lines in the U.S. They had something like eight billion in sales a couple years ago. Sales are not indicative of quality. I mean, look how much ... View Video

Window Air Conditioner Vs Ductless Mini-Split AC System
Window air conditioner vs split ductless cooling system but it may not be the best choice in terms of efficiency, convenience and versatility. HCFC Refrigerant Phase-Out Schedule - Be Prepared Ceiling Fan Rotation ... Read Article

HIGH EFFICIENCY HEAT PUMP WITH PURON REFRIGERANT
HIGH EFFICIENCY HEAT PUMP WITH PURON *Comparison of 38YZA and a standard model with a sound rating of 80dBa. Puron refrigerant provides the comfort you expect from an industry leader like Carrier. The 38YZA allows homeowners ... Get Doc

Variable Refrigerant Flow Systems - GSA Home
Intermediate part-load conditions representative of typical VRF operating efficiency. Variable Refrigerant Flow Systems Page 20 . “Comparison of Energy Efficiency Between Variable Refrigerant Flow Systems and Ground Source Heat Pump Systems” Energy and Buildings, 42, 584-589. ... View Full Source

MOTOR HORSEPOWER VS. COMPRESSOR EFFICIENCY 4-1274
COMPRESSOR EFFICIENCY 4-1274 9DB1 for different refrigerant applications, but the comparison does illustrate that over the normal operating range there is little difference in either efficiency or motor speed. Figure 1 is a typical set of curves for a 7-1/2 H.P. ... Access Full Source

Technical Note: Comparing R407C And R410A As Alternatives For R22
System efficiency. Background Chlorodifluoromethane (R22 or HCFC22) has been used as a refrigerant within refrigeration, industrial cooling, air conditioning and heating applications for many years. The low ozone depletion ... Read Document

Air Conditioner Units - Comparing Central Air Conditioners ...
Air Conditioner Units - Comparing Central Air Conditioners and Room Air Conditioners, About.com Housewares/Appliances ... Read Article

Dri-Eaz LGR 7000XLi 29-gallon Compact PORTABLE REFRIGERANT ...
Dri-Eaz LGR 7000XLi 29-gallon Compact PORTABLE REFRIGERANT DEHUMIDIFIER REVIEW! BEST OFFERS/ BUY/ DISCOUNTS Dri-Eaz LGR 7000XLi 29-gallon Compact Portable Re ... View Video

Recent Developments In Refrigerants For AirRefrigerants For ...
Basic Systems Comparison Of Peak Power Basic Systems Comparison Of Peak Power High Efficiency Refrigerant For Ref & AC Energy Efficiency Environment Maintenance Costs gyg Digital Technology 10-100% Capacity Modulation Discus Valving Reduced Re-expansion ... Fetch This Document

Electric Heating - Wikipedia, The Free Encyclopedia
Electric heating is any process in which electrical energy is converted to heat. For an electrical energy customer the efficiency of electric space heating is almost 100% because almost all purchased energy is converted to Refrigerant; Register; Reversing valve; Run-around coil; Scroll ... Read Article

Variable Refrigerant Flow (VRF) Systems
Variable refrigerant flow (VRF) systems vary the flow of refrigerant to indoor units based on demand. This ability to control the amount of refrigerant that ... Access This Document

Trends And Developments In Low GWP Potential Refrigerants
Energy Consumption Comparison 5/20/10 XP10 energy consumption is 3.3% lower than R-134a System Operating Temperatures Disch T Cond T Energy Efficiency Safety Refrigerant Cost System Cost Current HFCs Carbon Dioxide HFO Blends R32 (HFC) ~2,000 To 4,000 675 4-650 1 Mildly Flammable ... Read Document

R1234yf System Enhancements And Comparison To R134a
R1234yf Performance Summary (cont) R1234yf with IHX – ~Matches/exceeds R134a baseline capacity – Has slightly higher average efficiency than baseline ... Retrieve Document

VRF Systems - Ace Mechanical
• What is VRF? – Variable Refrigerant Flow VRF System Disadvantages • Efficiency is function of outdoor air temperature – Reduces as ambient temps go up in cooling Comparison between VRF and GLHP . One Building Two systems ... Retrieve Here

Comfortmaker Vs Trane Heat Pumps - YouTube
What do you think of Comfortmaker vs Trane heat pumps? Heat pumps can be a savings if it means you do not have to have both a furnace and an air conditioner ... View Video

Should I Buy A R-123 - Trane
Efficiency Comparison W/C Chillers Refrigeration Unitary AHRI Low-GWP Alternative Refrigerant Evaluation Program -Refrigerant efficiency -Low leakage -Short atmospheric life CVHE CVHF CDHF R-123 Refrigerant Timeline: Then, Now, Always! ... View Doc

Choosing The Right R-22 Retrofit - EPA
–Refrigerant price / availability Improved capacity / efficiency for low temp. High Side Pressure Comparison Based on Standard Cycle 105 F Condenser, 25 F Evaporator, 10 F Subcooling & 10 F Superheat 0-10 +10 ... View Full Source

GUIDELINES FOR UTILIZATION OF - TECUMSEH
GUIDELINES FOR UTILIZATION OF R404A and R507 C. Figure 2 shows the comparison of some proper-ties of R502, R404A 5°F (-15°C) evaporating or 86°F (+30°C) condensing. B. R404A and R507 possess similar energy efficiency and capacity characteristics to R502. D. For the same amount of ... Read Full Source

COMPARISON OF HYDROCARBON R-290 AND TWO HFC BLENDS R-404A AND ...
Case Refrigerant Compressor Efficiency Ratio COP Ratio Based on measured value R-410A/R-404A 1.06 1.08 (from theoretical cycle efficiency comparison as illustrated in Figure 3. Table 14: Part Load Test Results Refrigerant R-404A R-410A R-290 Frequency [Hz] 60 60 66 ... Fetch Full Source

R-22 To NU-22B (R-422B) Comparison
With a 95 deg. ambient you can see that R-422B only looses 5% efficiency. This loss would typically not be noticed by R-422B is a blended HFC refrigerant that is comprised of R-125, R-134a, and R-600a with an The comparison data in this test has been provided to ICOR International ... Doc Retrieval