#ESI! 2.0 Economic Analysis: P1,P2 Method 0 Contributors are listed in manuals Solar Energy Laboratory, University of Wisconsin - Madison 1 2 32 TRNSYS v7.0 CMR October 2004 1 noowner __ __ __ 3 TYPE 29 is called only twice in each simulation, once at the beginning of the simulation to check its parameter list, and again at the end to perform a standard life cycle cost analysis based on the simulation of one year of solar system operation. It compares the capital and back-up fuel costs of a solar system to the fuel costs of a conventional non-solar system. It is assumed that the solar back-up system is identical to the conventional heating system, in that only the incremental costs of adding solar to the conventional system are considered. The detail of the economic output is dependent on the mode and parameters used. In this instance (Mode 1) uses the simplest method of calculating the life cycle costs and life cycle savings (the P1 and P2 method as described by Brandemuehl and Beckman, and Duffie and Beckman. 0 0 0 0 0 0 __ __ __ 1 0 __ __ __ __ 0 0 __ .\SourceCode\Types\Type29.for __ __ __ 9 1st year auxiliary cost SN 1 The integrated cost ($) of the auxiliary (back up) system for the first year. simple real 1 + 0.0 +Inf [ ; ] 0.0 0.0 - Dimensionless 1st year load cost SN 1 The integrated cost of the total load for the first year i.e., the total fuel cost if the solar system was not used. simple real 1 + 0.0 +Inf [ ; ] 0.0 0.0 - Dimensionless Economic analysis mode SN 1 Thisparameter indicates to the general economics component that the P1,P2 method should be used to evaluate the inputs. simple integer 3 + 1 1 [ ; ] 1 1 - Dimensionless Collector area SN 1 The area of the solar collector array. simple real 3 + 0.0 +Inf [ ; ] 50.0 50.0 m^2 Area Area dependent costs SN 1 The total area dependent costs for the solar system ($/m^2). These costs include the cost of the collector and part of the cost of the thermal storage equipment. simple real 3 + 0.0 +Inf [ ; ] 200.0 200.0 - Dimensionless Fixed costs SN 1 The total cost ($) of the equipment which is independent of the collector area. Examples are costs for piping or ducts, controls, blowers, etc simple real 3 + 0.0 +Inf [ ; ] 4000.0 4000.0 - Dimensionless P1 factor SN 1 The P1 factor in the P1,P2 analysis method. The P1 factor is defined as the ratio of the life cycle fuel cost savings to the first year fuel cost savings. simple real 3 + 0.0 +Inf [ ; ] 20.0 20.0 - Dimensionless P2 factor SN 1 The P2 factor in the P1,P2 economic analysis method. The P2 factor is defined as the ratio of the life cycle expenditures incurred because of the additional capital investment to the initial capital investment. simple real 3 + 0.0 +Inf [ ; ] 0.6630 0.6630 - Dimensionless Logical unit number for output file SN 1 simple integer 3 + 30 30 [ ; ] 30 0 - dimensionless 0 0 0 0 0 *** trnModel specific properties *** 5 29 df /c 0 0 0 0 0 6 Output file to print the results 0 Logical unit number for output file 0 0 0 0 7 Economic analysis mode Collector area Area dependent costs Fixed costs P1 factor P2 factor Logical unit number for output file 0 0 1 0 1 50 -1 -1 0 1 50 0 6 0 1 50 -1 -1 0 1 50