EDUR-magnetically coupled pumps are used for fluids which are classified as environmentally hazardous or toxic Differences in used mechanical seal systems are determined by the corresponding applications EDUR-centrifugal pumps are constructed as close-coupled or inline pumps The application can require both single stage or multistage design A two stage or dual-stage compressor sits somewhere between single stage and variable speed systems in terms of how it functions While it doesn't operate at a wide range of capacities like a variable speed unit it does vary its output somewhat

Tesla turbine

The Tesla turbine is a bladeless centripetal flow turbine patented by Nikola Tesla in 1913 It is referred to as a bladeless turbine The Tesla turbine is also known as the boundary-layer turbine cohesion-type turbine and Prandtl-layer turbine (after Ludwig Prandtl) because it uses the boundary-layer effect and not a fluid impinging upon the blades as in a conventional turbine

The results show the heat‐discharging efficiency is up to 95 7% the heat discharging time can reach to 18 7 hours The optimal dimensionless diameters of annular baffle are D b /D t = 0 6 H s /H t = 0 075 and H x /H t = 0 050

Theoretical and Experimental Study of a Thermally Driven Heat Pump Based on a Double Organic Rankine Cycle The studied concept uses a single stage centrifugal compressor directly coupled to a single stage radial inflow turbine the potential of ORC-ORC systems and to propose optimal design specifications at different levels of the

ENERGY STAR Most Efficient 2020 — Geothermal Heat Pumps The Bryant GZ model offers high-efficiency geothermal cooling performance and is designed to be coupled with a gas/propane furnace or fan coil It features a quiet two-stage scroll compressor and in the right combination can allow you to enjoy the benefits of Hybrid Heat

Due to analyze the effects of the internal parameters on the efficiency performance and total heat transfer area of double-stage absorption heat pumps and optimal its design an absorption heat pump with 1163kW heat capacity and 0 8MPa steam as high temperature heat source was simulated 3 1 Thermodynamic Models

Comparing Heat Pumps

Jun 05 2017In this paper a two-dimensional axisymmetric numerical simulation model was developed for optimization of double (coaxial) tube vertical ground heat exchangers (GHEs) in cooling mode Details of the heat transfer rates and pressure drops for each model are presented and analyzed The results of the numerical study of optimization of double tube vertical GHEs have been done by considering heat

Heat Pumps Explained - Discover the Pros and Cons! Heat pumps represent systems that 'pump' or move heat from one place to another by using a compressor and a circulating structure of liquid or gas refrigerant through which heat is extracted from outside sources and pumped indoors Pumping the heat uses less electricity as compared to when electricity is solely used as a means to convert it

Optimized Heat Pump Design for GCC countries Part I: Algorithm H Javed O A Qureshi M T Ali P R Armstrong Masdar Institute of Science and Technology Abstract: A general component-based model of an air-cooled chiller is developed to be used as the analysis tool for optimal design of GCC specific cooling equipment

Two-stage design optimization based on artificial immune system and mixed-integer linear programming for energy supply networks Energy 2019 03 T Wakui M Hashiguchi K Sawada R Yokoyama Predictive Management of Cogeneration-Based Energy Supply Networks Using Two-stage Multi-Objective Optimization Energy 2018 11 T Wakui K Sawada R

Ao Yang Shirui Sun Ali Eslamimanesh Shun'an Wei and Weifeng Shen Energy-Saving Investigation for Diethyl Carbonate Synthesis through the Reactive Dividing Wall Column Combining the Vapor Recompression Heat Pump or Different Pressure Thermally Coupled Technique Energy 10 1016/j energy 2019 01 126 (2019)

Simultaneous Optimal Design of Multi-Stage Organic Rankine Cycles and Working Fluid Mixtures for Low-Temperature Heat Sources David M Thierry 1 Antonio Flores-Tlacuahuac and Ignacio E Grossmann2 1Departamento de Ingenier a y Ciencias Qu micas Universidad Iberoamericana Prolongaci on Paseo de la Reforma 880 M exico D F 01219 M exico

optimal performance of a class of irreversible heat pumps and refrigerators driven by heat energy At the same time it is pointed out that the optimal performance of an irreversible Carnot heat pump and refrigerator can be directly deduced from the results obtained in this paper 2 A general irreversible cycle model It is well known that real

Ao Yang Shirui Sun Ali Eslamimanesh Shun'an Wei and Weifeng Shen Energy-Saving Investigation for Diethyl Carbonate Synthesis through the Reactive Dividing Wall Column Combining the Vapor Recompression Heat Pump or Different Pressure Thermally Coupled Technique Energy 10 1016/j energy 2019 01 126 (2019)

Theoretical and Experimental Study of a Thermally Driven

Nowadays one of the main alternatives for a more rational use of energy in heating applications is the heat pumping technologies The market is dominated by two kinds of heat pump systems: the electrically driven vapor compression heat pumps (EHP) which are the most widely used in residential heating applications and the thermally driven heat pumps (TDHP) that are usually based on a

This paper presents an efficient strategy based on simulated annealing (SA) an algorithmic procedure for large-scale combinatorial optimization problems for the optimal design of heat exchangers The general heat exchanger design problem can be posed as a large-scale discrete optimization problem and SA was found to be well suited for this type of heat exchanger design problem

Consistent design modular system with volute casings Choose from six different designs with me-chanical seal or magnetic coupling Developed for circulating organic or synthetic heat transfer oils in heat transfer systems in ac-cordance with DIN 4754 as well as hot water Suitable for pumped media with low amounts of non-abrasive impurities

When someone refers to a one-stage (aka single stage) or a two-stage furnace they are actually talking about the burner section inside of the furnace or more specifically the valve that controls it Your average every day old fashioned furnace is a single-stage or one-stage furnace

Ground-source heat pump (GSHP) systems generally consist of a load-side loop heat pumps and source-side ground heat exchangers (GHEs) Among the different types of GHEs vertically installed borehole heat exchangers (BHEs) are commonly used in GSHP systems [1 2] BHEs are usually installed in the ground with a depth of 100–250 m for exploiting the reduced fluctuations in the ground

Ground-coupled heat pump (GCHP) system schematic The monthly energy demand for the building in heating and cooling modes is illustrated in Figure3 Energies 2019 12 x 4 of 16 Figure 2 Ground-coupled heat pump (GCHP) system schematic The monthly energy demand for the building in heating and cooling modes is illustrated in Figure 3 Figure 3

Jul 03 2019With the typical pipe structure and flow rate specified in this study it is found that the lower limit of the DBHE system is at a CSP value of 3 7 The extended numerical model presented in this study can be applied to the design and optimization of DBHE-coupled ground source heat pump systems

Nowadays one of the main alternatives for a more rational use of energy in heating applications is the heat pumping technologies The market is dominated by two kinds of heat pump systems: the electrically driven vapor compression heat pumps (EHP) which are the most widely used in residential heating applications and the thermally driven heat pumps (TDHP) that are usually based on a

A suitable heat pump coupled to low-temperature sources can upgrade heat to higher temperatures This is No of Stage 15 Reflux ration 1 6 Distillate to feed ratio 0 423 Feed location 8 Initial and optimal design for CHP under design variables (J Guo et al [10])