IS 13980 : 2025 Acceptance Tests on Industrial Boilers - Code of Practice
| ICS 23.020.30; 27.060.30 | MED 01 |
1 SCOPE
1.1 Purpose
The purpose of this Code is to establish procedures for conducting acceptance tests on industrial steam generating units and hot water boilers of the water tube type with capabilities larger than 25 tonnes from and at 100 °C of steam per hour, generally as envisaged in Fig. 1. The Code applies to units burning solid fuels fired by hand or by mechanical stokers or pulverized fuel firing equipment as well as liquid or gaseous fuel. It does not apply to packaged boilers which are, to a large extent, shop assembled. It also does not apply to dual fired or waste heat units which require a more specialized form of dry and wet gas heat loss measurement. The Code lays the procedure to determine:
a) Gross thermal efficiency;
b) Rating of the units; and
c) Other relating operating parameters such as steam temperature and control range.
1.2 Methods of Testing
Instructions are given for two acceptable methods of testing steam boilers to determine efficiency. One method is the direct measurement of input and output, hereinafter referred to as the input-output method. The other method is the direct measurement of heat losses and is hereinafter referred to as the heat loss method. The method followed in conducting the test shall be clearly defined in the report. The generating units shall preferably be tested by heat loss method, as the errors involved are too large to control in large installation by inputoutput method.
2 REFERENCES
The standards listed in Annex A contain provisions, which through reference in this text constitute provisions of this Code. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties to agreement based on this Code are encouraged to investigate the possibility of applying the most recent edition of these standards.
| IS No. | Title |
| IS 436 (Part l/Sec 1) : 2024 | Methods for sampling of coal and coke: Part 1 Sampling of coal, Section 1 Manual sampling (second revision) |
| IS 1350 | Coal and coke - Methods of test: |
| (Part 1) : 2025 | Proximate analysis (third revision) |
| (Part 2) : 2022/ISO 1928 : 2020 | Determination of gross calorific value (third revision) |
| (Part 3) : 2022/ISO 334 : 2020 | Determination of total sulphur - Eschka method (second revision) |
| (Part 4/Sec 1) : 2024 | Ultimate analysis, Section 1 Determination of carbon and hydrogen (second revision) |
| (Part 4/Sec 2) : 1975 | Ultimate analysis, Section 2 Determination of nitrogen (first revision) |
| (Part 5) : 2017 | Determination of special impurities (carbon present as carbonate, chlorine and phosphorus) (second revision) |
| IS 1447 (Part 1) : 2021 | Methods of sampling of petroleum and its products: Part 1 Manual sampling (second revision) |
| IS 1448(all parts) | Methods of test for petroleum and its products |
| IS 3624 : 1987 | Specification for pressure and vacuum gauges (second revision) |
| SP 26 : 2021 | Steam tables in SI units (third revision) |