How big of a plate exchanger do I need?
How big of a plate exchanger do I need?
What Size Should the Plate Exchanger Have? Many customers ask, “how do you know what size plate exchanger to install in your domestic hot water tank?” A simple rule of thumb is 2 to 3 people in one house will determine a 10 plate. A 10 plate heat exchange is enough for 2 and 3 people.
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 do you calculate plate type heat exchanger?
Calculation method
- Heat load, Theta and LMTD calculation. Where: P = heat load (btu/h) m = mass flow rate (lb/h)
- Heat transfer coefficient and design margin. The total overall heat transfer coefficient k is defined as: α1 = The heat transfer coefficient between the warm medium and the heat transfer surface (btu/ft2 h °F)
How efficient is a plate heat exchanger?
With those factors embedded into industry calculations, plate heat exchangers are still consistently found to be the most efficient of all heat exchangers. Typically, they can achieve efficiency rates of approximately 90%.
Can a plate heat exchanger be mounted horizontally?
Never mount the heat exchanger with the connections pointing down (fig. 3). For all two-phase applications the heat exchanger should always be mounted vertically. If this is not possible, contact HTG, Inc for recommendation on mounting.
How is heat exchanger design calculated?
Preliminary heat exchanger design to estimate the required heat exchanger surface area can be done using the basic heat exchanger equation, Q = U A ΔTlm, if values are known or can be estimated for Q, U and ΔTlm. Heat exchanger theory tells us that ΔTlm is the right average temperature difference to use.
What are the important factors for choosing heat exchanger?
Smaller footprint and greater scalability make plate heat exchangers the best choice in applications where space is limited or scale flexibility is required.
- Energy use. Plate heat exchangers are up to five times more efficient than shell-and-tube designs.
- Footprint.
- Ease of maintenance.
- Capacity adjustment.
- Capital expense.
What is the limitation of plate and heat exchanger?
Capacity can be increased by introducing plates in pairs of heat exchanger. Disadvantages of plate type heat exchanger is a bonding material between plates limits operating temperature of the cooler. It is Over tightening of the clamping bolts result in increased pressure drop across the cooler.
