在原料穩(wěn)定且且生產(chǎn)工藝穩(wěn)定時(shí)，沼氣的甲烷含量和產(chǎn)氣量都會(huì)趨于穩(wěn)定，波動(dòng)不會(huì)太大，此時(shí)沼氣發(fā)電機(jī)組的總裝機(jī)容量可以確定了。
When the raw material is stable and the production process is stable, the methane content and gas production of biogas will tend to be stable, and the fluctuation will not be too large. At this time, the total installed capacity of biogas generator unit can be determined.
電站裝機(jī)容量應(yīng)根據(jù)沼氣產(chǎn)量及其低熱值按公式計(jì)算確定：
The installed capacity of the power station shall be determined according to the biogas output and its low calorific value according to the formula:
P=k(V*H/G)
P=k(V*H/G)
P電站總裝機(jī)容量，單位為kW
P Total installed capacity of the power station, in kW
k裝機(jī)余量與發(fā)電機(jī)效率的綜合比例系數(shù)，根據(jù)電站需求k=1.08~1.20
The comprehensive proportion coefficient of k installed margin and generator efficiency, according to the power station demand, k=1.08~1.20

V每小時(shí)大沼氣產(chǎn)量換算為標(biāo)準(zhǔn)狀況下的體積，單位為m3/h
V Hourly biogas output is converted into volume under standard conditions, unit: m3/h
H沼氣的低熱值，單位為kJ/Nm3
H Low calorific value of biogas, in kJ/Nm3
G發(fā)電機(jī)組熱耗率，單位為kJ/(kWh)
G Heat rate of generator unit, in kJ/(kWh)
上面幾個(gè)指標(biāo)很多時(shí)候我們用著不是太順手，需要變變形，向前推進(jìn)一步。
Many of the above indicators are not easy to use. We need to change and move forward.
V，沼氣產(chǎn)量，比較常見(jiàn)的對(duì)應(yīng)參數(shù)是每天產(chǎn)量，即m3/d
5. The most common corresponding parameter of biogas output is the daily output, i.e. m3/d
H，沼氣低熱值，比較常見(jiàn)的對(duì)應(yīng)參數(shù)是甲烷濃度
H. Methane concentration is a relatively common parameter corresponding to the low calorific value of biogas
G，發(fā)電機(jī)組熱耗，比較常見(jiàn)的對(duì)應(yīng)參數(shù)是發(fā)電機(jī)組發(fā)電效率
G. The heat consumption of the generator set, the relatively common corresponding parameter is the generation efficiency of the generator set
于是這個(gè)公式變成了這樣：
So the formula becomes as follows:
P=k((V/24)*(H*35800)/(35800/10/G)
P=k((V/24)*(H*35800)/(35800/10/G)
化簡(jiǎn)一下：
To simplify:
P=k(V*H*G*10)/24
P=k(V*H*G*10)/24
注意這里是老劉偷懶，另個(gè)公式里代號(hào)沒(méi)有改變，但含義已經(jīng)完全不一樣了，需要根據(jù)實(shí)際情況選用對(duì)應(yīng)的公式。
Note that Lao Liu is lazy here. The code in the other formula has not changed, but the meaning is completely different. You need to select the corresponding formula according to the actual situation.
讓我們來(lái)實(shí)際應(yīng)用一下這個(gè)公式。沼氣產(chǎn)量取每天1萬(wàn)立方；生物沼氣一般濃度在55%-60%左右，這里我們?nèi)€(gè)整數(shù)60%；進(jìn)口的沼氣發(fā)電機(jī)組效率大多都在40%以上了，差點(diǎn)的也差的不太多，所以效率我們?nèi)?0%；余量系數(shù)先不管.
Let's actually apply this formula. The biogas output is 10000 cubic meters per day; The general concentration of biogas is about 55% - 60%, here we take an integer of 60%; The efficiency of most imported biogas generating units is more than 40%, and the efficiency is not much worse, so we take 40%; The margin factor is ignored first