Manual of Method for Calculating Primary Energy Consumptions under 2016 Building Energy Code (Non-residential Buildings)

Calculate a primary energy consumption of air conditioning equipment, \(E_\{SAC}\) [MJ/year], from the following formula.

A coefficient \(a_{SAC,r}\) [MJ/ (m²・year)] is a value that is specified in Appended Table 2 of MLIT’s 2016 Notification No. 265, and a primary energy consumption under the Building Energy Code per floor area. This coefficient is specified for each room use and each climate zone of a room to be calculated for air conditioning. Based on Form 0: Climate zone under the Building Energy Code (\(CLIMATEZONE\) ) and Form 2-1 of room r to be calculated for air conditioning: 2-1: ① Building and room uses (tem:[ROOMTYPE_{AC,r}]), an applicable coefficient \(a_{SAC,r}\) is extracted from Appended Table 2 of MLIT’s 2016 Notification No. 265.

Σ in the formula means the accumulation of primary energy consumptions of all rooms to be calculated for air conditioning in the input sheet. Specifically, primary energy consumptions of all rooms inputted into “Form 2-1 Air conditioning zone input sheet” are accumulated. For a floor area \(A_{AC,r}\) , a value inputted into Form 2-1: ① Floor area is used.

Calculate a primary energy consumption of mechanical ventilation equipment, \(E_\{SV}\) [MJ/year], from the following formula.

A coefficient \(a_{SV,r}\) [MJ/（m²・year)] is a value that is specified in Appended Table 2 of MLIT’s 2016 Notification No. 265, and a primary energy consumption under the Building Energy Code per floor area. This coefficient is specified for each room use and each climate zone of a room to be calculated for ventilation. Based on Form 3-1 of room r to be calculated for ventilation: ① Building and room uses \(ROOMTYPE_{V,r}\) ), an applicable coefficient \(a_{SV,r}\) is extracted from Appended Table 2 of MLIT’s 2016 Notification No. 265.

Σ in the formula means the accumulation of primary energy consumptions of all rooms to be calculated for ventilation in the input sheet. Specifically, primary energy consumptions of all rooms inputted into “Form 3-1 Ventilation room input sheet” are accumulated. For a floor area \(A_{V,r}\) , a value inputted into Form 3-1: ① Room area is used.

Calculate a primary energy consumption of a lighting installation, \(E_\{SL}\) [MJ/year], from the following formula.

A coefficient \(a_{SL,r}\) [MJ/（m²・year)] is a value that is specified in Appended Table 2 of MLIT’s 2016 Notification No. 265, and a primary energy consumption under the Building Energy Code per floor area. This coefficient is specified for each room use and each climate zone of a room to be calculated for lighting. Based on Form 4 of room r to be calculated for lighting: ① Building and room uses \(ROOMTYPE_{L,r}\) ) , an applicable coefficient \(a_{SL,r}\) is extracted from Appended Table 2 of MLIT’s 2016 Notification No. 265.

Σ in the formula means the accumulation of primary energy consumptions of all rooms to be calculated for lighting in the input sheet. Specifically, primary energy consumptions of all rooms inputted into “Form 4 Lighting input sheet” are accumulated. For a floor area \(A_{L,r}\), a value inputted into Form 4: ① Room area is used.

Calculate a primary energy consumption of a hot-water supply system, sy\(E_\{SHW}\) [MJ/year], from the following formula.

A coefficient \(a_{SHW,r}\) [MJ/(m²・year)] is a value that is specified in Appended Table 2 of MLIT’s 2016 Notification No. 265, and a primary energy consumption under the Building Energy Code per floor area. This coefficient is specified for each room use and each climate zone of a room to be calculated for hot-water supply. Based on Form 0: Climate zone under the Building Energy Code (\(CLIMATEZONE\) ) and Form 5-1 of room r to be calculated for hot-water supply: ① Building and room uses ([ROOMTYPE_{HW,r}]), an applicable coefficient \(a_{SHW,r}\) is extracted from Appended Table 2 of MLIT’s 2016 Notification No. 265.

Σ in the formula means the accumulation of primary energy consumptions of all rooms to be calculated for hot-water supply in the input sheet. Specifically, primary energy consumptions of all rooms inputted into “Form 5-1 Hot-water supply room input sheet” are accumulated. For a floor area \(A_{HW,r}\), a value inputted into Form 5-1: ① Room area is used.

Calculate a primary energy consumption of an elevator, \(E_\{SEV}\) [MJ/year], from the following formula.

\(T_{EV,i}\) in the formula is an annual operation time of an elevator system i and specified based on building and room uses of a room r to be calculated for elevator, \(ROOMTYPE_{EV,r}\). The annual operation time of the elevator is assumed to be equal to the annual lighting time of a lighting installation.

A coefficient \(C_{SEV,i}\) is a coefficient for control of standard-set velocity, and deemed to be 1/40. This value is a velocity control efficient when a velocity control method is a variable-voltage and variable-frequency control method (without power regeneration).

Σ in the formula means the accumulation of primary energy consumptions of all rooms to be calculated for elevator in the input sheet. Specifically, primary energy consumptions of all rooms inputted into “Form 6 Elevator input sheet” are accumulated.

\(M_{EV,i}\) in the formula is a transport capacity coefficient of an elevator system i. The transport capacity coefficient is a ratio between a standard 5-minute transport capacity and planned 5-minute transport capacity of an elevator, and is a coefficient to correct a primary energy consumption under the Building Energy Code so that the consumption becomes small apparently if the service level of the elevator is excessively set. The following rule shall apply to the calculation of the transport capacity coefficient.