IS 8753-1977

标准号：IS 8753-1977
发布日期：1978/10/1 12:00:00
实施日期：1999/12/31 12:00:00
适用范围：1.1 This Standard establishes the procedure for conducting acceptance tests on direct fired stationary steam-generating units of the power station type and presenting the test results in tabular form.It provides for the determination of the heat output and of the thermal efficiency. The heat output should be determined by direct measurements. The efficiency should be determined by one of the following methods:Method A — where possible, from the establish-ment of a complete heat balance, orMethod B — where this is not possible, or where the expected accuracy of measure-ment of heat input or heat output is unacceptable, by the determina-tion of all losses.In either case the thermal efficiency may be ex-pressed in terms of either the net or the gross calorific value of the fuel.The net thermal efficiency, based on the heat output reduced by the thermal equivalent of the power used by auxiliaries, is not employed in this standard. The power used by auxiliaries is to be separately recorded in its appropriate units in the test report.Provision is also made for the determination of the performance of the draught plant and pulveri-zers, and also for the determination of steam purity, where such tests are required to demonstrate com-pliance with the provisions of a contract.