How do I choose a heat exchanger size?

How do I choose a heat exchanger size?

A starting point for heat transfer solution sizing and selection is to compare models that fit the temperatures and pressures required for the process. The best type of heat exchanger depends on design parameters, fluid characteristics, space, and budget.

How big is a typical heat exchanger?

Standard shell sizes from 8 inches through 42 inches in diameter; custom designs up to 60 inches in diameter.

How do you size an air cooler?

You can choose the right size for the air cooler by calculating the CFM required for your room. You can calculate the required CFM by dividing the cubic feet of your room by two. For example, if your room is 300 sq feet in size, with the ceiling at a height of 10 feet.

What is the range of effectiveness of a heat exchanger?

The effectiveness ranged from 55.6 to 76.5% for air velocity of 1.0 m/s; 50 to 75% for air velocity of 2.0 m/s and 42.9 to 73.3% for air velocity of 3.0 m/s. The highest temperature effectiveness of 76.5% was achieved at 1.0 m/s and the lowest temperature effectiveness of 42.9% was achieved at 3.0 m/s.

How do you find the overall heat transfer coefficient of a heat exchanger?


  1. = the overall heat transfer coefficient (W/(m2•K))
  2. = the contact area for each fluid side (m2) (with and expressing either surface)
  3. = the thermal conductivity of the material (W/(m·K))
  4. = the individual convection heat transfer coefficient for each fluid (W/(m2•K))
  5. = the wall thickness (m).

What is a ducted heat recovery ventilator?

At the forefront of innovation, heat recovery ventilators (HRVs) or energy recovery ventilation (ERV) systems transfer heat or coolness from stale exhaust air to fresh intake air. This balanced ventilation solution removes excess moisture, odors, and contaminants while conserving energy and enhancing comfort.

Does air cooler cool the room?

An air conditioner circulates the internal air of the room over and over again, whereas an air cooler pulls fresh air from outside and then cools it down. Also, air cooler doesn’t make the air overly dry like an air conditioner. Because of the way it operates, an air cooler offers better quality of air for your room.

How can you increase the effectiveness of a heat exchanger?

One simple and obvious solution for increasing shell-and-tube heat exchanger performance might be to switch the shell-and-tube fluids. The placement of the process fluids on the tube or shell side is usually not dependent on the most efficient heat transfer area. A primary concern is pressure.

How is the size of a heat exchanger selected?

Consider factors like future scalability, overall cost to purchase and operate, and efficiency/carbon footprint to narrow the options. Once a heat exchanger design is selected, the most efficient size depends on operating conditions.

How does an air cooled heat exchanger work?

An air cooled heat exchanger (air cooler) removes heat from a liquid or gas into ambient air. Chart provides horizontal, vertical and multiple fan coolers with both forced and induced draft. Complete range of options including winterization, maintenance and header walkways, ladders, bugscreens, louvers, heating coils and warm air recirculation.

How to choose the best heat exchanger for your home?

Heat exchanger sizing and selection requires a combination of knowledge of the heat exchanger types and options as well as knowledge of the application and environment where the unit operates. Contact Carotek to review your needs and heat exchanger options. Or browse our selection of heat exchangers to find the best fit for your application.

What should I look for in a gasketed heat exchanger?

For a gasketed plate heat exchanger, the gaskets must be compatible with the fluids in the unit. Thermal fluid characteristics and product mix. If the heating or cooling fluid is susceptible to fouling, a corrosion resistant material may be needed. Location.

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