Section 1 General requirements

1.1.1 This Chapter is to be read in conjunction with Pt 5, Ch 1 General Requirements for the Design and Construction of Machinery General Requirements for the Design and Construction of Machinery, Pt 6, Ch 1 Control Engineering Systems Control Engineering Systems, and Pt 6, Ch 2 Electrical Engineering Electrical Engineering .

1.2.1 Where power, efficiency, heat rate or specific consumption refer to standard conditions (ISO 2314), conditions are to be:

1. for the intake air at the compressor flange (compressor intake flare):

   • a total pressure of 101,3 kPa;
   • an ambient temperature of 15°C;
   • a relative humidity of 60 per cent; and

2. for the exhaust at the turbine exhaust flange (or recuperator outlet):

   • a static pressure of 101,3 kPa.

1.3.1 Where the dimensions of any particular component are determined from shaft power, P, in kW, and revolutions per minute, R, the values are those defined in Pt 5, Ch 1 General Requirements for the Design and Construction of Machinery.

1.4.1 New gas turbine types or developments of existing types are to be type approved in accordance with Lloyd’s Register’s (hereinafter referred to as ‘LR’) Type Approval System Procedure – Test Specification GT04.

1.4.2 Where a gas turbine type has subsequently proved satisfactory in service with a number of applications, a maximum power uprating of 10 per cent may be considered without a further complete design re-assessment and type test.

1.5.1 Gas turbines are to operate satisfactorily under the conditions of inclinations as shown in Table 1.3.2 Inclination of ship.