Condenser Calculation, Using Thermo Utilities, MS Excel Add-ins

Condenser Calculation
Condenser Design Excel

A surface condenser is required to deal with 15 000 kg/h wet steam. Wet steamtemperature is 37 C and enters the condenser with 0.95 quality (dryness fractionis 0.95). The water used for cooling has the following data:

- Inlet pressure 1.20 bar, inlet temperature 7 C

- Outlet pressure 1.013 bar, outlet temperature 22 C

Calculate the flow rate of cooling water and tube surface of the condenser.Assume that the cooling water velocity through tubes is 1.5 m/s

For outlet temperature calculations. Nonetheless, neither ε-Ntu or LMTD approaches can address the heat transfer / pumping power tradeoffs, which is the crux of a balanced heat exchanger design. For this purpose, Bejan (1987) established the thermodynamic design. Condenser Design Calculation Excel woolticket.web.fc2.com › Condenser Design Calculation Excel ♥ Equations and Parameters The heat exchanger design equation, Q = U A ΔT lm, can be used to determine the required heat transfer area, A, for a heat exchanger. Evaporator Design Calculations In Excel 1 Formulas and design parameters in Robert Evaporator Design with online calculation sheet. 1.1 Types of Evaporators: 1.2 Steps in calculation of. Thermodynamic Design of Condensers and Evaporators. The designer should verify that the design.

Condenser design (CnD) is a software tool that is made to demonstrate the thermal design calculations of Shell & Tube condensers. The software can design, horizontal condensers, vertical condensers including reflux condensers.

Inputs	Units
Wet steam inlet temperature	37	C
Steam quality	0,95	.
Cooling water inlet temperature	7	C
Cooling water inlet pressure	1,2	bar
Cooling water outlet temperature	22	C
Cooling water outlet pressure	1,013	bar
Steam mass flow	15000	kg/h
Cooling water speed	1,5	m/s
Outputs	.	.
Wet steam pressure	0,06274	bar
Enthalpy of steam at inlet	2448,28	kJ/kg
Entropy of condense	154,92	kJ/kg
Rejected heat/hour	34400441,72	kJ/h
Rejected heat/second	9555,68	kJ/s = kW
Enthalpy of water at inlet	29,53	kJ/kg
Enthalpy of water at outlet	92,31	kJ/kg
Water mass flow	547885,14	kg/h

The overall heat transfer coefficient can be calculated according to BEAMAor HEI standards.

BEAMA: British Electrical and Allied Manufacturers Association

BEAMA publication on the recommended practice for design of surface typesteam condenser

HEI: Heat Exchanger Institute

HEI standards for steam surface condensers

Outputs	Unit
Heat transfer coeff.(BEAMA)	2,95235	KW/m2,K
Logarithmic mean temp. diff.	49,83	degree K
Required area	64,96	m2

If we use the less conservative HEI method we obtain the following:

Outputs	Unit
Heat transfer coeff.(HEI)	3,60991	kW/m2,K
Required area	53,12	m2

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Coils Calculator

The main function of Coils selection module software is to calculate the performance of tubes and fins heat exchangers. It uses a fast, tested and effective calculation engine to provide the performance for monophase coils, direct expansion coils, refrigerant condensers coils and ste