PDF Publication Title:
Text from PDF Page: 016
Rapport 2414173 - October 2007 __________________________________________________________________ In such a system, the pressure is therefore fixed by a control device so that the cycle operates under optimum conditions, yielding the best energy efficiency. Energy efficiency is defined as the amount of useful energy divided by the amount of input energy. Hence, in heating mode, the energy efficiency, or Coefficient of Performance is defined as : COP = HeatingDuty(kW ) Electric Power(kW ) Figure 7a : Duty vs. Electric power Figure 7b : Performance vs. Discharge pressure Figure 7a shows a cycle operated at a given value of high pressure. At this value, the system requires a heat input q at the evaporator and a work input w to the compressor. The delivered heat duty at the gas cooler is therefore q+w. Under these conditions, the R744 refrigerant at exit of the gas cooler reaches a temperature T. If the cycle is operated at a different values of high pressures and a constant value of temperature T, both q and w will vary, and so will the value of COP. Figure 7b shows the variation of COP when the high pressure is allowed to vary. It can observed that there exists a value of pressure (called "optimal pressure") for which the COP is highest. Thus, the most efficient heat pumps will use control schemes that enable high pressure control during operation. However, some systems also use simpler methods such as expansion through a capillary tube, or some simple control scheme that enables operation at fixed high pressure. As a rule of thumb, the optimal pressure is approximately given by the following equation : P =2.6T +8 opt exit __________________________________________________________________________________________ SHERPHA PROJECT - Transcritical R744 Heat Pumps – Technician's Manual 16/62PDF Image | Transcritical R744 (CO2) heat pumps Technician's Manual
PDF Search Title:
Transcritical R744 (CO2) heat pumps Technician's ManualOriginal File Name Searched:
Infinity_Tech_Manual_R744.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)