system and airconditioning heat pump system

... τ=1.19 and 33% at τ=1.25, followed by R407C (ζ = 41% at τ=1.19 and ζ = 32% at τ=1.25) and R410A (ζ= 40% at τ=1.19 and ζ = 29.5% at τ=1.25) Figure shows the disparity of COP of the heat pump system ... was created 1.2 First and second law analysis Studying the inefficiencies of existing systems our work focuses on the understanding of heat pumps cycles, their efficiencies and potentials for improvement, ... exchanger in the system exists for system thermal efficiency improvement [14] Figure Schematic diagram of the single stage heat pump cycle Figure Schematic diagram of the two stage heat pump cycle...

Ngày tải lên: 09/09/2015, 10:17

... heat pump system for cooling, water heating and drying 14 Chapter Literature Review that uncovered collector heat pump systems have better performance than both conventional air-source heat pumps ... [63] classified SAHP system to parallel, series and dual system and found that series system has the highest COP An integrated solar heat pump system for cooling, water heating and drying 15 Chapter ... on the 3-in-1 solar assisted -heat pump system for air-conditioning, water heating and drying Further An integrated solar heat pump system for cooling, water heating and drying 24 Chapter Literature...

Ngày tải lên: 14/09/2015, 08:37

... condenser heat and utilize it in desalination, water heating and drying with renewable heat sources: solar energy, ambient energy and waste heat by developing a solar-assisted assisted heat- pump system ... study on a solar assisted heat pump desalination system The system consists of a solar assisted heat pump, a distillation chamber, and a solar water preheating unit The heat pump used an unglazed, ... for desalination, water heating and air heating and thus drying Hence, the solar assisted heat pump system can perform as a desalination unit, water heater, clothes dryer and air conditioner For...

Ngày tải lên: 10/09/2015, 15:47

... solar assisted heat pump system [19-26] for evaluating the system performance and technical feasibility of the system for various applications, such as water heating, and space heating and cooling ... performance of a solar system, air-to-air heat pumps, and several solar-assisted heat pump systems for residential heating They concluded that the air-to-air heat pump was preferred when there is no ... collection of heat both on sunny days and cloudy days The heat storage coil unit was used to make hot water in winter and ice in summer Tleimat and Howe [23] developed a solar-assisted heat pump system...

Ngày tải lên: 28/11/2015, 13:43

... of a TEG can be assumed as a system composed of a TE couple (one n- and one p-leg), the plate-fin heat exchanger at the hot-side junction, and the engine coolant system mounted near the cold junction ... Automotive Waste Heat Recovery Systems Part I: Numerical Modeling and Baseline Model Analysis Fig Representation of a TE couple (one n- and one p-leg) with fins at the hot side and coolant at the ... shown in Eq (26) Qg,HeX is the heat energy transferred by the heat exchanger to the thermoelectric materials and the insulation Cp is the specific heat _ capacity of gas, and m is the exhaust gas flow...

Ngày tải lên: 06/05/2014, 08:54

... generation and associated pressure drop is presented for a fixed geometry and heat exchanger topology In this section, the influence of parameters such as the heat exchanger design (number of fins and ... DO = 0.105 m and DI = 0.04 m and cylindrical (red) with DO = 0.08 m and DI = 0.04 m models for pure skutterudite (solid line) and hybrid (dashed line) arrangements with optimized heat exchanger ... thermoelectric modules, heat exchanger placement, and exhaust flow direction through the thermoelectric generators Thermoelectric Generators for Automotive Waste Heat Recovery Systems Part II: Parametric...

Ngày tải lên: 06/05/2014, 08:54

... generation and associated pressure drop is presented for a fixed geometry and heat exchanger topology In this section, the influence of parameters such as the heat exchanger design (number of fins and ... DO = 0.105 m and DI = 0.04 m and cylindrical (red) with DO = 0.08 m and DI = 0.04 m models for pure skutterudite (solid line) and hybrid (dashed line) arrangements with optimized heat exchanger ... thermoelectric modules, heat exchanger placement, and exhaust flow direction through the thermoelectric generators Thermoelectric Generators for Automotive Waste Heat Recovery Systems Part II: Parametric...

Ngày tải lên: 06/05/2014, 08:58

... Rabaey, and A SangiovanniVincentelli, System- level design: orthogonalization of concerns and platform-based design,” IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, ... our system- level modeling and simulation environment—Sesame Taking Sesame as a basis, we have discussed many important key concepts such as Y-chart-based systems modeling, design space pruning and ... Prasanna, and A Ledeczi, “Milan: a model based integrated simulation framework for design of embedded systems,” in Proceedings of the Workshop on Languages, Compilers, and Tools for Embedded Systems...

Ngày tải lên: 22/06/2014, 19:20

... of endogenous vasoconstrictor and water-retaining and sodium-retaining systems such as the renin–angiotensin–aldosterone system and the sympathic nervous system, and in the nonosmotic release ... recirculating system and (b) the Prometheus system adsorbent representation of both liver assist devices: (a) the molecular adsorbent recirculating system and (b) the Prometheus system FPSA, fractionated ... after treatment(PROM) system standard values therapy alone (SMT), (b), (e) the molecular adsorbent recirculating system (SVRI) and (c), (f) the Prometheus with (a), (d) standard medical therapy...

Ngày tải lên: 13/08/2014, 01:20

... [37, 38] and irreversible [39, 40] Carnot heat engines [37, 39], refrigerators and heat pumps [38, 40], and three -heat- reservoir absorption refrigerator and heat pump [41] Generalization and unified ... Diesel and Atkinson heat pump cycles; optimal performances of Dual and Miller heat pump cycles are close to those of Diesel and Atkinson heat pump cycles, respectively There exist an optimal heat ... and Cwf , respectively; CL and CL max are the minimum and maximum of CL and Cwf , respectively; and N H , N H , N L1 and N L are the numbers of heat transfer units of the hot- and cold-side heat...

Ngày tải lên: 05/09/2013, 15:28

... Raja and K.J Fernandes (Eds.) Automated Nanohandling by Microrobots S Fatikow A Distributed Coordination Approach to Reconfigurable Process Control N.N Chokshi and D.C McFarlane ERP Systems and ... memory, sends commands to the driving system, and detects feedback signals from the drive system The NC system also performs logical decision making such as when coolant is provided and when the spindle ... synchronization and communication mechanism among tasks are required In this book, the architecture and design of the CNC system and the architecture and functions of the NCK, the PLC, and the MMI...

Ngày tải lên: 08/09/2013, 20:50

Ngày tải lên: 12/12/2013, 08:27

... The Soneplex Broadband and Soneplex Loop Extender systems each use displays, 512 bits Status and command displays are supported TL1 Interface Transaction Language (TL1) commands may be used to ... the Soneplex Broadband system and/ or the battery back-up system and transports them to the central location using the DS3 FLC overhead As seen in Figure 5, the Soneplex chassis and battery back-up ... processor unit (APU) provides the critical, major and minor alarm indications and dry relay contacts for the Soneplex Broadband and Soneplex Loop Extender systems These alarms are available as normally...

Ngày tải lên: 21/12/2013, 06:19

... often faster and more reliable Commands can be typed in a command window Typed commands are case sensitive, and most commands are lower case Spaces are used to delimit (separate) commands and arguments, ... operating system for small handheld computers Development - software authoring 2.1.5 Advantages and Disadvantages A partial list of advantages and disadvantages is given below The cost, stability and ... system using the graphical user interface (GUI), or using typed commands New users often prefer to use the system using the GUI Advanced users often prefer to use commands to administer the system, ...

Ngày tải lên: 22/12/2013, 20:17

... wider bandwidth systems as more bandwidth is available for 3G networks We therefore agree that IS-95 is a 2.5G system and its evolution to 3G should be smooth This is not so for 2G TDMA systems ... attempts to optimise the network and radio resources, and strict separation between the radio subsystem and the network subsystem is maintained, although the network subsystem is compatible with the ... W-CDMA, where UTRA stands for the UMTS Terrestrial Radio Access, and the ‘W’ in WCDMA means wideband We will refer to this system here as UTRA FDD IMT MC (Multicarrier) This system is the 3G version...

Ngày tải lên: 23/12/2013, 17:15

... of information: (1) the system timing and performance, (2) the refined internal function, and (3) the physical constraints such as size, weight, and power System timing and performance information ... MPEG-1 System Clock Frequency Requirement Example Layer - System requirement example from ISO 11172 standard System clock frequency The value of the system clock frequency is measured in Hz and ... processes and pertain to the systems layer of the MPEG-1 standard These processes take the incoming MPEG-1 bitstream and extract system layer information This information is stored in the system...

Ngày tải lên: 25/12/2013, 06:16

... space-vehicle systems, aircraft autopilots and controls, ship and marine control systems, intercontinental missile guidance systems, automatic control systems for hydrofoils, surface-effect ships, and ... system characteristics and other parameters (c) Reduced effects of nonlinearties and distortion (d) Increased bandwidth (bandwidth of a system that ranges frequencies (input) over which the system ... Controlled System Gp(s) The plant, process, or controlled system is the system, subsystem, process, or object controlled by the feedback control system For example, the plant can be a furnace system...

Ngày tải lên: 01/01/2014, 18:43

... - APPLIED PROCESS DESIGN FOR CHEMICAL AND PETROCHEMICAL PLANTS (Volume 3, Third Edition), Gulf Professional Publishing T.Kuppan – Heat exchanger design handbook, Marcei Dekker INC Nhiều tác giả ... tham khảo: http://en.wikipedia.org/ http://www.gc3.com/ http://www.heatexchangersonline.com/ Phần mềm tham khảo: Shell and Tube Heat Exchanger Design 1.5.2 ...

Ngày tải lên: 15/01/2014, 17:25

... often faster and more reliable Commands can be typed in a command window Typed commands are case sensitive, and most commands are lower case Spaces are used to delimit (separate) commands and arguments, ... operating system for small handheld computers Development - software authoring 2.1.5 Advantages and Disadvantages A partial list of advantages and disadvantages is given below The cost, stability and ... system using the graphical user interface (GUI), or using typed commands New users often prefer to use the system using the GUI Advanced users often prefer to use commands to administer the system, ...

Ngày tải lên: 25/01/2014, 05:20