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Filmwise And Dropwise Condensation And Boiling
Filmwise And Dropwise Condensation And Boiling (Product Code: SLE/EA/11) is a phase-change heat transfer apparatus used to demonstrate boiling and condensation inside a partially filled glass vessel in engineering laboratories. Students vary the current through a resistance wire heater in the water to move between boiling regimes, while two water-cooled vertical cylinders act as condensing surfaces. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM engineering lab equipment manufacturer, at its own factory in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Test vessel | Partially filled glass vessel in which both heating and condensing take place |
| Heater | Heater coil (resistance wire heater element) in the water, with adjustable current |
| Heater wire temperature | Reaches significantly higher than 100 °C |
| Boiling regimes observed | Subcooled boiling (small bubbles form and rise); nucleate boiling (large bubbles form and rise); unstable and stable film boiling (a vapour blanket forms and radiation becomes important) |
| Condensing surfaces | Two water-cooled vertical cylinder specimens |
| Condensation measurement | Heat transfer found from the cooling water flow rate and its temperature change at each cylinder |
| Product code | SLE/EA/11 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Filmwise and Dropwise Condensation Unit Used For?
For boiling experiments, students raise the heater current in steps and watch the water move from subcooled boiling, through nucleate boiling, to film boiling, where a vapour blanket surrounds the wire and radiation starts to matter. Because the vessel is glass, the whole group sees each regime form instead of inferring it from numbers alone.
For condensation work, vapour condenses on the two water-cooled vertical cylinders, and the cooling water flow rate and temperature change at each cylinder give the heat transferred. The name refers to the two condensation modes taught with it: filmwise, where condensate spreads as a continuous film, and dropwise, where it gathers as separate droplets. Raise the current gradually and let each condition settle before logging, a habit that suits any college buying engineering lab equipment in India for heat transfer courses.
OEM Manufacturer
Jain Scientific Equipments Private Limited, which trades as ScienceLab, is the OEM (original equipment manufacturer) of this condensation and boiling apparatus and makes it at its own licensed factory at Saha, Ambala, Haryana, India. Because the unit comes straight from the maker rather than through a trader, questions about a replacement glass vessel or heater element go directly to the people who build it — ask us and we will advise. More about the company is on our company profile.
Related Thermodynamics & Heat Transfer Lab Equipment
Pair this apparatus with other phase-change and temperature experiments from the same range:
- Computerized Boiling Heat Transfer Apparatus — an alternative boiling set-up with computerised readings.
- Saturated Steam The Marcet Boiler — links boiling to saturated steam pressure and temperature.
- Emissivity Natural Convection And Radiation — studies the radiation heat transfer that becomes important in film boiling.
- Temperature Measurement and Calibration Apparatus — builds the temperature measurement skills these tests rely on.
See every item in Thermodynamics & Heat Transfer Lab Equipment.
Frequently Asked Questions
Which boiling regimes can students observe?
The Filmwise And Dropwise Condensation And Boiling apparatus shows subcooled boiling with small rising bubbles, nucleate boiling with large rising bubbles, and unstable and stable film boiling, where a vapour blanket forms around the heater wire as its current is increased.
How is condensation heat transfer measured?
On the Filmwise And Dropwise Condensation And Boiling apparatus, water condenses on two water-cooled vertical cylinders; students measure the cooling water flow rate and its temperature change at each cylinder and use these values to calculate the heat transferred.
Why is the test vessel made of glass?
The partially filled glass vessel of the Filmwise And Dropwise Condensation And Boiling apparatus lets students watch the boiling process directly and note how bubbles and the vapour blanket change, which makes the different regimes much easier to recognise and discuss.
How hot does the heater wire become?
The heater wire in the Filmwise And Dropwise Condensation And Boiling apparatus reaches significantly higher than 100 °C during the boiling experiments, so students should switch off and allow the unit to cool before handling any part of the vessel.
Does the apparatus need a cooling water supply?
Yes, the two condensing cylinders of the Filmwise And Dropwise Condensation And Boiling apparatus are water-cooled, so a cooling water supply is used during condensation tests. Ask us through the contact page about connection details for your lab.
Who manufactures the Filmwise And Dropwise Condensation And Boiling apparatus?
The Filmwise And Dropwise Condensation And Boiling apparatus is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), the OEM, at its own licensed factory in Saha, Ambala, India, and is supplied factory-direct to colleges, dealers and importers.
What details help with a quotation?
When requesting a quote for the Filmwise And Dropwise Condensation And Boiling apparatus (SLE/EA/11), give the number of units, your institution name, the delivery destination and any questions on water or electrical connections, so the manufacturer can reply accurately.
Request a Quote
For prices and availability of the Filmwise And Dropwise Condensation And Boiling apparatus, use our contact page or place it in the enquiry cart. Your quotation comes direct from the manufacturer, for delivery in India and international markets.
Last updated: 24 September 2026
