Greenhouse energy-saving performance simulation apparatus, multilayer-curtain curtain heat transfer index calculation apparatus, computer program and recording medium

A greenhouse energy-saving performance simulation apparatus comprising:

• a fuel consumption amount calculation unit which finds, in a case of cultivating a predetermined plant during a predetermined period in a greenhouse, a fuel consumption amount for securing a heat quantity required for maintenance of a set night temperature suitable for the plant, including a heat transfer index of a lining covering material in the greenhouse in a calculation element;
• and
• a fuel reduction amount calculation unit which compares the fuel consumption amount with a reference fuel consumption amount, and finds a reduction amount of fuel consumption caused by using the lining covering material.

A multilayer-curtain curtain heat transfer index calculation apparatus which calculates a curtain heat transfer index which is a heat transfer index in a multilayer state of a multilayer curtain, configured to arrange curtain members in multiple layers, of a lining covering material provided in a greenhouse, the multilayer-curtain curtain heat transfer index calculation apparatus comprising:

• a curtain heat transfer index calculation unit which uses a prediction model generated by machine learning with individual heat transfer indexes of a plurality of the curtain members constituting the multilayer curtain set as explanatory variables and with a curtain heat transfer index of the multilayer curtain set as an objective variable, reads, based on selection information of the curtain members, individual heat transfer indexes of corresponding curtain members from an individual heat transfer index storage unit which stores individual heat transfer indexes of the curtain members, and calculates a curtain heat transfer index of the multilayer curtain constituted of the plurality of curtain members which have been selected.

A computer program which causes a computer to function as a greenhouse energy-saving performance simulation apparatus, the computer program causing the computer to execute:

• a procedure for finding, in a case of cultivating a predetermined plant during a predetermined period in a greenhouse, a fuel consumption amount for securing a heat quantity required for maintenance of a set night temperature suitable for the plant, including a heat transfer index of a lining covering material in the greenhouse in a calculation element;
• and
• a procedure for comparing the fuel consumption amount with a reference fuel consumption amount, and finding a reduction amount of fuel consumption caused by using the lining covering material.