Scroll expander for different refrigerant gases
An
Air Squared product story
Edited by the Engineeringtalk editorial team
Mar 8, 2006
Scroll expander for expansion generators used to convert waste heat energy from exhaust gases or liquid cooling systems of internal combustion engines, fuel cells, solar collectors and similar.
Air Squared's scroll expander is for expansion generators used to convert waste heat energy from the exhaust gases or liquid cooling systems of internal combustion engines, fuel cells, solar collectors and similar devices.
With an expansion ratio of 4.6:1 and displacement of 12cm2/rev, the scroll expander is rated up to 1kW, based on a maximum inlet pressure of 13.5bar.
A magnetic coupling eliminates any leakage path for the working fluid, allowing the scroll to be used with many different types of refrigerant gases.
Oilless and lubricated models of the scroll allow design flexibility, with the lubricated version running at 80% efficiency and the oil-free version at 70%.
Weighing 9kg, the scroll measures 295.8mm long by 208.5mm wide by 230.8mm high.
The rotary scroll design provides quiet, balanced, pulse-free operation with a noise level of 50dBa.
The operating element of a scroll compressor is made up of two identical involutes which form right- and left-hand components.
One scroll is indexed or phased 180 degrees with respect to the other to allow the scrolls to mesh.
This indexing creates crescent shaped gas pockets, bounded by the involutes and base plates of both scrolls.
In operation, one scroll remains fixed; the other is attached to an eccentric that drives a generator shaft.
As the moving scroll orbits around the fixed scroll, the tiny pockets formed by the meshed scrolls at the centre follow the spiral outwards and enlarge in size.
The expander inlet is at the centre of the scrolls.
The entering gas is trapped in two diametrically opposed gas pockets and expands as the pockets move towards the periphery, where the discharge port is located.
No valves are needed, which reduces noise and improves the durability of the unit.
Because scroll expanders use true rotary motion, they can be dynamically balanced for nearly vibration-free operation.
Power delivery is continuous, which virtually eliminates pulsation and associated noise.
Reliability is inherent, because there are only two primary moving parts, with no inlet or discharge valves to break or make noise, and no associated valve losses.
Not what you're looking for? Search the site.
Google Ads
Contact Air Squared
Related Stories
- Jet Edge to exhibit at WJTA Conference
- Compressors help create snow for ski slope
- Beko offers compressed-air testing for body shops
- Hutchinson unveils cold-resistant Conveyxonic belt
- Aerotech revises laser machining brochure
Articles by product category
- Consultancy and Services (903)
- Machine Building (4,517)
-
Engineering Design Software (6,179)
- Engineering Design Software (12)
- 2D CAD software (200)
- 3D CAD software (1,157)
- FEA and structural analysis software (369)
- Fluid, thermal, noise, vibration software (334)
- Simulation, modelling, validation software (914)
- Rendering, visualisation, styling software (196)
- Materials design and moulding design software (151)
- Process, instrumentation, automation software (258)
- Electrical design software (164)
- Publishing and documentation software (229)
- Maths, charting, statistics, QA software (317)
- Data, document management software (310)
- CAM, CNC, production management software (568)
- File conversion software, data capture (351)
- PLM and collaboration software (649)
-
Drives, Motors and Controls (3,361)
- Drives, Motors and Controls (1)
- Precision Motors and Gears (411)
- Industrial Drives/Controls (1,276)
- Linear Drives and Motors (114)
- Industrial Motors (497)
- Stepper and Servo Drives, Motors, Controls (1,060)
- Small Mechanical Components, Joining, Tools (1,975)
-
Control and Instrumentation (5,028)
- Plantwide control (1,324)
- Plant- and Machine-Wide Communications (1,174)
- Smaller-Sized PLCs (387)
- CNC and Motion Controllers (184)
- Mid-range and Large PLCs (201)
- Power Supplies, Uninterruptible Power (562)
- HMIs/Operator Interfaces (294)
- Logic Controllers, Timers and Relays (96)
- Cabling, Conduit, Signal Conditioning (806)
-
Monitoring, Measurement and Quality (5,459)
- Monitoring, Measurement and Quality (1)
- Data acquisition Software and Communications (494)
- Data Acquisition Hardware and PC I/O Boards (472)
- Electrical and Electronic Testing, PAT Equipment (630)
- Form/co-ordinate, optical, vision instruments (703)
- Gauges, Indicators and Instruments (440)
- Data loggers (422)
- Materials testing equipment (421)
- Telecomms/network test equipment, software etc (154)
- Testing and Calibration Services and Information (500)
- Testing, analysing and monitoring equipment (1,222)
-
Electrical and Electronic Equipment Design (4,160)
- Batteries, chargers and circuit protection (555)
- Connectors, Terminals, Busbars, Slip Rings (679)
- Enclosures and Equipment Cooling Fans (709)
- Knobs, Handles and Enclosure Hardware (420)
- PCs and Embedded Systems (798)
- Electrical and Electronic Subassemblies (369)
- Electrical and Electronic Components (630)
-
Materials and Processing (2,963)
- Materials and Processing (5)
- Materials and components (2,215)
- Rapid Prototyping (458)
- Materials processing and testing (285)
-
Engineering Industry News, Resources (6,093)
- Engineering Industry News, Resources (4)
- Engineering Business News, Views (388)
- Engineering Exhibitions, Events (562)
- Engineering Conferences (425)
- Engineering Seminars (400)
- Engineering Industry Developments, Awards (633)
- Engineering Guides, Newsletters (349)
- Engineering Recruitment, Employment (219)
- Engineering Training Courses (433)
- Engineering Education, Resources, Standards (838)
- Engineering Industry Reports, Surveys (597)
- Electronic Resources for Engineers (278)
- Health and Safety Legislation (402)
- Health and Safety Strategy, Risk Assessment (113)
- Health and Safety Consultancy, Software (175)
- Health and Safety Events, Training, News (277)
-
Powertrain Design (3,598)
- Powertrain Design (2)
- Bearings (939)
- Chains and belts (326)
- Gears, brakes, couplings and engines (1,441)
- Hydraulic Components (471)
- Lubricants (418)
-
Capital Equipment (3,387)
- Capital Equipment (1)
- Manufacturing Machinery and Plant Equipment (468)
- Production line blowers and fans (62)
- Compressors and Air Treatment (510)
- Electronics Manufacturing, Tools, Instruments (192)
- Electrical hardware (131)
- Machinery and Production Equipment (1,093)
- Robotics, Handling and Storage (930)
-
Sensors (7,080)
- Sensors (8)
- Accelerometers and Vibration Sensors (427)
- Loadcells, Force Sensors, Torque Sensors (699)
- Pressure sensors (621)
- Flowmeters and Flow Sensors (618)
- Level Sensors and Leak Detectors (527)
- Linear Position Sensors (399)
- Rotary Position, Tilt and Angular Sensors (546)
- Proximity Sensors (700)
- Gas, Chemical, Radiation, Magnetic Sensors (284)
- Humidity and Environmental Sensors (152)
- Temperature sensors (612)
- Vision and Colour Sensors (1,384)
- Barcode Sensors (103)
- Valves, Pumps, Process Hardware (3,623)
