An ETC characterization system for thermal analysis of fluids is a mini closed-loop Evacuated Tube Collector system to study the thermal characteristics of various fluids. The system uses an artificial sunlight source to illuminate evacuated tube collector so that it can be used inside a lab and is independent of the natural climate.

The system includes header storage tank, ETC tubes and a pump which make it suitable for the system analysis and evaluation of thermal characteristics. Different sensors such as pressure, temperature, flow etc. at different branches of system is used to collect data and then can be used in calculation for evaluating different parameters. A chiller is connected to the system to cool down the hot fluid immediately and study the thermal characteristics of heating as well as cooling.

This system helps users to practically understand various technical parameters such as efficiency and heat transfer at different flexible input parameters like radiation, wind speed, etc. Using the system, a user will be able to evaluate the losses, heat transfer and system efficiency in different parts of the system for different conditions such as different inlet water temperature, different ambient temperature etc.

Technical Characteristics ≫

• Artificial source of irradiation
• Control of irradiation level as per requirement
• Artificial Source of Wind speed with provision to set wind speed as per requirement
• Inbuilt facility analogous to rooftop and hot water tank compatible to perform experiment both outdoor and indoor environment
• Water heater available with storge tank for pre heating of water
• Chiller tank available to quickly cool hot water
• Evaluate system efficiency and heat transfer
• An active measurement panel to measure inlet temperature, pressure etc.
• Inbuilt facility analogous to rooftop and hot water tank compatible to perform experiment both outdoor and indoor environment
• Artificial Source of Wind speed with provision to set wind speed as per requirement
• Flow rate of fluid can be changed
• Sturdy structure with lockable wheels

Technical Advantages ≫

• Modular and Scalable design
• System is rigorously tested and can work continuously without switching off
• Require very less space for installation
• Reliable Quality: Basically, no after sales service is required
• System comes with an illustrated experiment manual detailing every wiring connection to be made
• Specifications can be customized as per requirement
• Detailed demonstration and training of system is done during commissioning of the system

Experiments ≫

• To evaluate the losses from storage tank in system stagnant condition
• To evaluate the losses from ETC tubes
• To evaluate the system efficiency and heat transfer amount in different parts of system
• To evaluate the system efficiency and heat transfer amount in different parts of system at different radiation level
• To evaluate the system efficiency and heat transfer amount in different parts of system for different inlet water temperature
• To evaluate the system efficiency and heat transfer amount in different parts of system at different ambient conditions

Research Options ≫

• To evaluate the performance of different nano-fluids in ETC system

Specifications ≫

Components	Sub-Components	Specifications
Heat generating unit	Artificial Sunlight Source
	Type	Halogen
	Qty.	30
	Total power	4500 W
Solar ETC	Evacuated Tube collector system
	Total No. of tubes	10
	Total Capacity	100 LPD
	Material	Borosilicate
	Tube Length	1800 mm
	Tube outer diameter	58 mm
	Coating	German Technology Triple coating copper followed by special N/Al Magnetron sputtering technique (Aluminum nitride coating)
	Absorptance	>90 %
Manifold	Single sided 100 LPD manifold for 10 tubes
	Insulation	50mm PUF insulation
External Tank	External Tank with 3000-Watt water heater
	Material	S.S. 316 grade 28 finish non magnetic
	Insulation	55mm PUF cladding by S.S. mirror
	Capacity	50 ltr.
Heat exchanger Tank	Capacity	50 ltr.
	Heat Exchanger Material	Copper
	Insulation	External Glass wool jackets
Measurement Unit	Temperature meters
	Pressure Meters
	Flow meters
Chiller Tank	0.25 TR
Accessories	Radiation meter
	IR temperature gun