Shell Tube Heat Exchanger Water To Water
Product Code : EL-HTL-11092
Quick answer: The shell and tube heat exchanger (water to water) passes hot water through a bundle of copper tubes while cold water flows across four 25% cut baffles in a 150 NB shell. Students use it to find heat duty, LMTD and the overall heat transfer coefficient. A 3 kW instantaneous heater supplies the hot water. Lab Exports manufactures it in Delhi for engineering colleges, polytechnics and TVET institutes.
Specifications
| Component | Specification |
|---|---|
| Shell | 150 NB, 750 mm long, with end boxes and divider plate |
| Baffles | 4 nos., 25% cut |
| Tubes | Copper, 4.5 mm ID, 6.35 mm OD, triangular pitch |
| Water heater | Instantaneous type, 3 kW |
| Temperature measurement | Thermometers at hot and cold inlets and outlets |
| Flow control | Valves for hot and cold water |
| Water supply | About 10 litres per minute |
| Electrical supply | AC mains with earthing |
| Floor space | 1.5 m x 1 m |
How the shell and tube heat exchanger experiment is done
Shell and tube exchangers are the most common heat exchanger type in process plants, and this water-to-water unit shows the design at teaching scale. Hot water enters the lower end box, runs through the tubes in the lower half of the shell, turns in the end box and returns through the upper half, guided by the divider plate. Cold water enters the lower part of the shell and is forced across the tube bundle by the baffles before leaving at the top.
From the flow rates and temperatures, students calculate the heat given up by the hot water, Q = m x cp x dT, the log mean temperature difference (LMTD) and the overall heat transfer coefficient U = Q / (A x LMTD). Repeating the test at different flow rates shows how cross flow over the baffled bundle affects heat transfer.
- Open the cold water supply to the shell and set its flow with the control valve.
- Switch on the 3 kW instantaneous heater and set the hot water flow through the tubes.
- Record the hot and cold water flow rates.
- At steady state, note the inlet and outlet temperatures of both streams.
- Repeat at other flow rates and compare the heat duty and U values.
Key features
- 150 NB shell, 750 mm long, with end boxes and a divider plate that routes hot water through the tube bundle
- Copper tubes of 4.5 mm ID and 6.35 mm OD laid on a triangular pitch
- Four 25% cut baffles that turn the cold water across the tubes
- Instantaneous 3 kW water heater for the tube-side hot water
- Separate valves to set hot and cold water flow independently
- Runs on a water supply of about 10 litres per minute
Documentation and supply
Installation instructions and a manual are supplied with the apparatus. Most Lab Exports products carry a one-year manufacturer warranty.
Lab Exports manufactures the shell and tube heat exchanger at its works in Laxmi Nagar, Delhi, and supplies it to engineering colleges, polytechnics and TVET institutes in India and 60+ countries, handling the export documents for each shipment. More about the company is on the About Lab Exports page.
Related Heat Transfer Lab products
- Concentric Tube Heat Exchanger (EL-HTL-11091)
- Plate Type Heat Exchanger Apparatus (EL-HTL-11093)
- Critical Heat Flux Apparatus (EL-HTL-11090)
- Thermal Conductivity of Metal Rod (EL-HTL-11094)
- Stefan-Boltzmann Apparatus (EL-HTL-11089)
- Emissivity Measurement Apparatus (EL-HTL-11088)
The full range is in the Heat Transfer Lab section of the Engineering Lab range.
Frequently asked questions
How many baffles does the shell and tube heat exchanger have?
The shell holds four baffles with a 25% cut, which direct the cold water across the copper tube bundle.
What can students calculate with this apparatus?
Heat duty, LMTD and the overall heat transfer coefficient of a water-to-water shell and tube exchanger, at different flow rates.
What is the price of the shell and tube heat exchanger?
Prices are not published on the website. Add the shell and tube heat exchanger to the Enquiry Cart with the Add To Cart button on this page, or email [email protected] with the house code EL-HTL-11092 and the quantity, to receive a quotation.
Does Lab Exports manufacture the shell and tube heat exchanger?
Yes. Lab Exports manufactures the shell and tube heat exchanger at its works at 11/315, Lalita Park, Laxmi Nagar, Delhi 110092, under house code EL-HTL-11092.
Request a quote
Email [email protected] with the house code EL-HTL-11092 and the quantity, or add the shell and tube heat exchanger to the Enquiry Cart with the Add To Cart button on this page. Tender buyers can also see the Tenders and OEM page.