CN104123460A - Method for calculating refrigeration air conditioning degree days of public building - Google Patents

Abstract

The invention discloses a method for calculating the refrigeration air conditioning degree days of a public building and relates to the technical field of energy conservation. The method achieves the technical effect of reducing the errors of air conditioning energy consumption evaluation. The method comprises the steps that a 24-hour air conditioning operating vector of the public building is set according to the running time periods of the public building; a 24-hour air conditioning refrigeration vector of the public building is calculated in combination with the calculated temperature limit value of the air conditioning degree days, the pre-booting time of an air conditioning load, the advanced stop time of the air conditioning load and the average temperature value of all the time periods; the refrigeration air conditioning degree days of the public building in the calculation day are further calculated according to a calculated result of the 24-hour air conditioning refrigeration vector of the public building. The method is suitable for air conditioning energy consumption evaluation of the public building.

Description

The refrigeration air-conditioner of the public building number calculating method of subsisting

Technical field

The present invention relates to power-saving technology, the refrigeration air-conditioner that particularly the relates to a kind of public building technology of number calculating method of subsisting.

Background technology

In energy-saving design standard, refrigeration air-conditioner year power consumption in building energy-saving overall target is subsisted to count according to the on-site air-conditioning of buildings and is determined, its value is when certain day is that outdoor mean daily temperature is during higher than assigned temperature in 1 year, the number of degrees higher than assigned temperature are multiplied by 1 day, by this product accumulation in a year, obtain reflecting the several indexs of subsisting of air-conditioning power consumption again.

The refrigeration air-conditioner of existing public building is subsisted in number calculating method, and medial temperature is the mean value of day several time point temperature values, and these time points, with certain hour interval mean allocation, all have same time to count on night, daytime.Because being used, public building air conditioning energy consumption there is time period effect, conventionally concentrate on the different time sections at daytime or night, and the air conditioning energy consumption usage time interval of dissimilar public building is also different each other, utilize above-mentioned medial temperature account form, the air-conditioning of the dissimilar public building in identical area is subsisted several inevitable identical, thereby cause the air conditioning energy consumption assessment errors of public building larger, can affect the selection of power-saving technology.

Summary of the invention

For the defect existing in above-mentioned prior art, technical matters to be solved by this invention is to provide a kind of refrigeration air-conditioner that can reduce the public building of air conditioning energy consumption assessment errors number calculating method of subsisting.

In order to solve the problems of the technologies described above, the refrigeration air-conditioner of a kind of public building provided by the present invention number calculating method of subsisting, is characterized in that, concrete steps are as follows:

1) setting the accounting temperature limit value that air-conditioning subsists several is L, and to set the air conditioner load pretrigger time be T0, and setting air conditioner load, to shift to an earlier date stop time be T1, and the value of T1 is 1.5 times of T0;

If the air-conditioning of public building is central refrigerating air-conditioning, the specified start-up time of air conditioner refrigerating unit that T0 is public building, if the air-conditioning of public building is for disperseing refrigeration air-conditioner, T0=0;

2) selected one is calculated day, and calculatings day is divided into 24 time periods, and the vectorial and 24 hours air-conditioning work vectors of 24 hours air conditioner refrigeratings of public building are set are respectively:

A＝{a[1]，a[2]，…，a[i]，…，a[24]}；

B＝{b[1]，b[2]，…，b[i]，…，b[24]}；

Wherein, A is 24 hours air conditioner refrigerating vectors of public building, B is 24 hours air-conditioning work vectors of public building, vector element a[i] be that public building is in the air conditioner refrigerating vector value of calculating day i the time period, vector element b[i] be that public building is in the air-conditioning work vector value of calculating day i the time period, 1≤i≤24;

Wherein, vector element b[i] obtaining value method be: if public building must be lower than L in the building air conditioning area running temperature of calculating day i the time period, b[i]=1, otherwise b[i]=0;

3) calculate 24 hours air conditioner refrigerating vectors, circular is:

Condition 1: if i+T0≤24 and b[int (i+T0)]=1, a[i]=Tp[i] * b[int (i+T0)];

Condition 2: if i+T0≤24 and b[i]=1, a[i]=Tp[i] * b[int (i+T0)];

Condition 3: if 0≤i-T1 and b[int (i-T1)]=0, a[i]=Tp[i] * b[int (i-T1)];

Condition 4: if 0≤i-T1 and b[i]=0, a[i]=Tp[i] * b[int (i-T1)];

If condition 1 to condition 4 is all false, a[i]=Tp[i] * b[i];

Wherein, int (i+T0) is to i+T0 round numbers, and int (i-T1) is to i-T1 round numbers;

Wherein, if Cp[i] >L, Tp[i]=Cp[i]-L, if Cp[i] and≤L, Tp[i]=0, Cp[i] for calculating the average temperature value of day i time period;

4) calculate public building at the refrigeration air-conditioner the calculating day number of subsisting, specific formula for calculation is:

$\mathrm{Cd}=\left(\underset{j=1}{\overset{24}{\mathrm{\Σ}}}a\right[j\left]\right)/24;$

Wherein, Cd is public building at the refrigeration air-conditioner the calculating day number of subsisting.

The refrigeration air-conditioner of the public building provided by the invention number calculating method of subsisting, according to the refrigeration air-conditioner working hour of hour meteorological condition of public building their location and public building, the refrigeration air-conditioner that can accurately calculate this building number of subsisting, the air conditioning energy consumption that can accurately reflect this building changes, the air conditioning energy consumption assessment errors that can reduce this building, is beneficial to the selection of power-saving technology.

Accompanying drawing explanation

Fig. 1 is the subsist calculation flow chart of number calculating method of the refrigeration air-conditioner of the public building of the embodiment of the present invention.

Embodiment

Below in conjunction with accompanying drawing explanation, embodiments of the invention are described in further detail, but the present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar variation thereof, all should list protection scope of the present invention in.

As shown in Figure 1, the refrigeration air-conditioner of a kind of public building that the embodiment of the present invention the provides number calculating method of subsisting, is characterized in that, concrete steps are as follows:

1) setting the accounting temperature limit value that air-conditioning subsists several is L, and to set the air conditioner load pretrigger time be T0, and setting air conditioner load, to shift to an earlier date stop time be T1, and the value of T1 is 1.5 times of T0, and the value of L is according to energy-saving design standard setting;

If the air-conditioning of public building is central refrigerating air-conditioning, the specified start-up time of air conditioner refrigerating unit that T0 is public building, if the air-conditioning of public building is for disperseing refrigeration air-conditioner, T0=0;

2) selected one is calculated day, and calculatings day is divided into 24 time periods, and the vectorial and 24 hours air-conditioning work vectors of 24 hours air conditioner refrigeratings of public building are set are respectively:

A＝{a[1]，a[2]，…，a[i]，…，a[24]}；

B＝{b[1]，b[2]，…，b[i]，…，b[24]}；

Wherein, A is 24 hours air conditioner refrigerating vectors of public building, B is 24 hours air-conditioning work vectors of public building, vector element a[i] be that public building is in the air conditioner refrigerating vector value of calculating day i the time period, vector element b[i] be that public building is in the air-conditioning work vector value of calculating day i the time period, 1≤i≤24;

Wherein, vector element b[i] obtaining value method be: if public building must be lower than L in the building air conditioning area running temperature of calculating day i the time period, b[i]=1, otherwise b[i]=0, in typical case, the b[i of public institution building] value in 8≤i≤18 o'clock, b[i]=1, when i is worth for other, b[i]=0;

3) calculate 24 hours air conditioner refrigerating vectors, circular is:

Condition 1: if i+T0≤24 and b[int (i+T0)]=1, a[i]=Tp[i] * b[int (i+T0)];

Condition 2: if i+T0≤24 and b[i]=1, a[i]=Tp[i] * b[int (i+T0)];

Condition 3: if 0≤i-T1 and b[int (i-T1)]=0, a[i]=Tp[i] * b[int (i-T1)];

Condition 4: if 0≤i-T1 and b[i]=0, a[i]=Tp[i] * b[int (i-T1)];

If condition 1 to condition 4 is all false, a[i]=Tp[i] * b[i];

Wherein, int (i+T0) is to i+T0 round numbers, and int (i-T1) is to i-T1 round numbers;

Wherein, if Cp[i] >L, Tp[i]=Cp[i]-L, if Cp[i] and≤L, Tp[i]=0, Cp[i] for calculating the average temperature value of day i time period;

4) calculate public building at the refrigeration air-conditioner the calculating day number of subsisting, specific formula for calculation is:

$\mathrm{Cd}=\left(\underset{j=1}{\overset{24}{\mathrm{\Σ}}}a\right[j\left]\right)/24;$

Wherein, Cd is public building at the refrigeration air-conditioner the calculating day number of subsisting.

The year refrigeration air-conditioner number calculating method of subsisting of the public building that the embodiment of the present invention provides, it is characterized in that, concrete steps are as follows: the refrigeration air-conditioner of every day that first calculates public building in year number of subsisting, the number of again refrigeration air-conditioner of public building each day in 1 year being subsisted is cumulative, the number thereby the year refrigeration air-conditioner that calculates public building is subsisted, specific formula for calculation is:

$\mathrm{Cdy}=\underset{j=1}{\overset{\mathrm{days}}{\mathrm{\Σ}}}\mathrm{Cd}\left[j\right];$

Wherein, Cdy is public building year the refrigeration air-conditioner number of subsisting, the calendar number of days that days subsists several computation years for year refrigeration air-conditioner, Cd[j] refrigeration air-conditioner of j days of subsisting in several computation years for year refrigeration air-conditioner number of subsisting.

Claims (1)

1. the refrigeration air-conditioner of the public building number calculating method of subsisting, is characterized in that, concrete steps are as follows:

1) setting the accounting temperature limit value that air-conditioning subsists several is L, and to set the air conditioner load pretrigger time be T0, and setting air conditioner load, to shift to an earlier date stop time be T1, and the value of T1 is 1.5 times of T0;

If the air-conditioning of public building is central refrigerating air-conditioning, the specified start-up time of air conditioner refrigerating unit that T0 is public building, if the air-conditioning of public building is for disperseing refrigeration air-conditioner, T0=0;

2) selected one is calculated day, and calculatings day is divided into 24 time periods, and the vectorial and 24 hours air-conditioning work vectors of 24 hours air conditioner refrigeratings of public building are set are respectively:

A＝{a[1]，a[2]，…，a[i]，…，a[24]}；

B＝{b[1]，b[2]，…，b[i]，…，b[24]}；

Wherein, A is 24 hours air conditioner refrigerating vectors of public building, B is 24 hours air-conditioning work vectors of public building, vector element a[i] be that public building is in the air conditioner refrigerating vector value of calculating day i the time period, vector element b[i] be that public building is in the air-conditioning work vector value of calculating day i the time period, 1≤i≤24;

Wherein, vector element b[i] obtaining value method be: if public building must be lower than L in the building air conditioning area running temperature of calculating day i the time period, b[i]=1, otherwise b[i]=0;

3) calculate 24 hours air conditioner refrigerating vectors, circular is:

Condition 1: if i+T0≤24 and b[int (i+T0)]=1, a[i]=Tp[i] * b[int (i+T0)];

Condition 2: if i+T0≤24 and b[i]=1, a[i]=Tp[i] * b[int (i+T0)];

Condition 3: if 0≤i-T1 and b[int (i-T1)]=0, a[i]=Tp[i] * b[int (i-T1)];

Condition 4: if 0≤i-T1 and b[i]=0, a[i]=Tp[i] * b[int (i-T1)];

If condition 1 to condition 4 is all false, a[i]=Tp[i] * b[i];

Wherein, int (i+T0) is to i+T0 round numbers, and int (i-T1) is to i-T1 round numbers;

Wherein, if Cp[i] >L, Tp[i]=Cp[i]-L, if Cp[i] and≤L, Tp[i]=0, Cp[i] for calculating the average temperature value of day i time period;

4) calculate public building at the refrigeration air-conditioner the calculating day number of subsisting, specific formula for calculation is:

$\mathrm{Cd}=\left(\underset{j=1}{\overset{24}{\mathrm{\Σ}}}a\right[j\left]\right)/24;$

Wherein, Cd is public building at the refrigeration air-conditioner the calculating day number of subsisting.