evacuated tube

e·vac·u·a·ted tube

(ē-vak'yū-āt-ĕd tūb)
A plastic or glass sealed vacuum tube used to collect a blood specimen obtained through venipuncture.
References in periodicals archive ?
The product or the solar thermal heating is disintegrated by flat-plate collector type and evacuated tube collector type.
"Our investigation was comparing solar district cooling from parabolic trough collectors or solar cooling from evacuated tube collectors," said Perdichizzi.
proposed a general design framework for solar water heater (SWH) design using a machine learning-based high-throughput screening (HTS) method, and they used the design of water-in-glass evacuated tube solar water heater (WGET-SWH) as an example; it is expected that this proposed design framework can cost effectively design and optimize a solar thermal system.
The two most common types of nonconcentrating solar collectors are flat plate and evacuated tube. They have some notable differences that may make one or the other more suitable for different areas of the country.
For instance, Mustafa Ali Ersoz [5] studied the effect of six different working fluids on the thermal performance of evacuated tube solar collectors with GAHP, where the air velocity is considered in three different values (and the results showed that the maximum energy transfer is associated with THPETC-Acetone).
In addition to the 10 Stokvis DF100-6 Evacuated Tube Collectors - offering a net absorber area 10.69m - the manufacturer also supplied a Stokvis Solar Bloc Maxi pump-station.
The solar domestic hot water system uses an array of evacuated tube solar collectors.
The only advantage to magnetic repulsion is that it can operate in an evacuated tube. However, the difficulties of such an operation are formidable.
This includes centralised solar water heating for building complexes through an evacuated tube collector system.
In a nutshell the ultimate goal of our research is to increase the usage of solar water heaters and achieve "fast payback" on highly effective evacuated tube collectors of solar water heaters using nanomaterials and microencapsulated phase change materials for light absorbing, conversion to heat, heat accumulation and transfer layers.