2015-2-13 · 72 Steam-based process heating systems provide process heating through either direct heating or indirect 73 application of steam. Similar to fuel-based direct and indirect systems, steam is either directly 74 introduced to the process for heating (e.g. steam sparge) or indirectly in contact with the process 75 through a heat transfer mechanism.

2015-8-15 · Abstract: Boiler is a most useful device for any developing industries to process & production. It is necessary to optimized good boiler efficiency. Boiler efficiency can be measured by two method, direct method and indirect method. Both methods give a different result. Direct method did not include any losses for calculating boiler efficiency

2012-11-26 · In a direct steam injection process you exploit not only the latent heat, but also part of the sensible heat of condensed steam, whilst in an indirect process you trap and discharge hot condensate. Moreover in an indirect process you introduce further thermal

2019-7-18 · DIRECT STEAM INJECTION HEATING PRINCIPALS The common method of maintaining an anaerobic digester at optimum temperature is indirect heating—either external (most common) or internal. For indirect heating methods water is the medium utilized to transfer heat to the sludge through the wall of a heat exchanger. The

Usually there are two different methods for the exergy analysis: the direct and the indirect method[1,7]. The direct method evaluates the exergy inlets and outlets of a given system, giving the efficiency in terms of the inlet/outlet exergy ratio. The indirect method quantifies the energy/exergy losses along the system and, once calculated the

boiler efficiency calculation indirect method excel – 2017-9-12 · Nov 15, 2011 6, Basic Data about your Boiler, Steam System . losses were included in the calculation of the boiler efficiencies. 62, • Calculations in this tool are based on the ASME PTC 4 Indirect Methods for computing boiler efficiency.

How to calculate boiler efficiency by Direct Method. There are two methods of assessing boiler efficiency. 1) Boiler Efficiency by Direct Method: Where the energy gain of the working fluid (water and steam) is compared with the energy content of the boiler fuel. 2) Boiler Efficiency by Indirect Method: Where the efficiency is the difference

The calculation of boiler's fuel efficiency boiler should consider the consumption amount of fuel used, so it is very appropriate to be used as a point of boiler economic analysis. Direct Method. There are two popular methods for calculating the fuel efficiency of the boiler; the direct method and the indirect

2014-6-19 · Systems and methods generate steam in hydrocarbon recovery operations and may further enable emulsion separation and product upgrading. The methods rely on indirect boiling of water by contact with a thermal transfer liquid heated to a temperature sufficient to vaporize the water.

2018-4-28 · Boiler Excess Air Tune-up.xls Nov 15, 2011 6, Basic Data about your Boiler, Steam System . losses were included in the calculation of the boiler efficiencies. 62, • Calculations in this tool are based on the ASME PTC 4 Indirect Methods for computing boiler efficiency.

2019-7-1 · 1) Direct method 2) Indirect method 1) The Direct Method: Where the energy gain of the working fluid (water and steam) is compared with the energy content of the boiler fuel. This is also known as 'input-output method' due to the fact that it needs only the useful output (steam) and the heat input (i.e. fuel) for evaluating