DESIGN SUITE STEAMDOSS-DS
This page gives program details of the STEAMDOSS design module.The design programs can be accessed by clicking the left side menu bar in the design module screen .The graphic flash screen indicates the fit of the program in the steam system and a short description below .
Program details:
1.Estimate boiler capacity: This program provides calculations for the user to decide the capacity of the boiler plant based on the plant operating data .User has option to input data in excel format . It provides calculated results on boiler capacity, load profile and fuel cost.
2.Combustion: This program provides combustion calculations for the boiler. Calculates fuel consumption, excess air, efficiency, flue gas analysis for a given set of fuel, air and steam conditions. Sankey diagram and facility to calculate the stack diameter are provided in this design program .ABMA charts are used for radiation losses
3.Economizer calculations: This design program calculates the in and out stack temperatures, increase in feed water temperature and efficiency gain due to installing an economizer in the boiler. The input given for calculations are type of boiler, it’s rated efficiency and firing rate, steam and blow down conditions. Also this program recommends when condensing economizer is required.
4.Estimate blow down: This program provides calculations to estimate percent of blow down or percent of makeup in boiler plant system when condensate percent is known or unknown. The calculations are based on TDS or conductivity measurements as input data.
5.Fuel properties:This program calculates the HHV and LHV values for the natural gas, fuel oils and coal fuels for user defined compositions. User needs to provide gravimetric or volumetric analysis of elements for calculation. This program also gives typical composition and values for these fuels.
6. Condensate load estimation: This program calculates heat loss and estimates condensate load when steam traps are installed in steam pipe lines. .The input data consists of pipe data, insulation type and steam trap orifice diameter and steam trap safety factor.
7.Pump sizing :This program calculates the pump design flow, efficiency, power, NPSH required and also specific speed of the pump. It also estimates the performance curves and resistance curves and recommends the motor size. The efficiency data is based on generic centrifugal pumps data based on specific speed calculated. This program also provides operating cost for the pump. Input condition consists of fluid parameters and operating scenarios and pipe data.
8.Estimate pressure drop: This program estimates piping pressure drop and head loss for water and saturated steam .This program is provided with piping, valves and fittings data base. It also provides calculations on power and shear for piping
9.Orifice sizing: This program calculates orifice size, flow or pressure drop depending on the input data for water and saturated steam.
10.Estimate insulation thickness: This program estimates typical insulation thickness for variety of insulation materials for a given pipe size and ambient conditions. It also calculates heat loss for given user defined values
11.Heat exchanger: This program estimates in or out temperatures or mass flow for cross flow heat exchangers steam water calculations. Calculations based on heat and mass balance. Primarily intended for blow down recovery heat exchanger calculations
12. Estimate payback and cash flow: This program calculates simple payback, discounted payback, present worth and profitability factor and provides cash flow scenario for one time investment where revenues are greater than investment and expenses are less than revenue. This program is intended for energy savings calculations
Common Programs:
These are independent programs that can be accessed directly.
1. Steam Table: This program gives steam and water properties. Table developed based on ASME steam table for industrial use. Provides graphical Temperature – entropy diagram for ease of locating the property point
2. Unit Converter: This program gives conversion values with a provision invert the conversion for all US metric and SI units commonly needed.
