- Industry: Energy
- Number of terms: 18450
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Lowers the temperature through a mechanical process. In a typical refrigeration unit, electricity powers a motor that runs a pump to compress the refrigerant to maintain proper pressure. (A "refrigerant" is a substance that changes between liquid and gaseous states under desirable temperature and pressure conditions.) Heat from the compressed liquid is removed and discharged from the unit and the refrigerant then evaporates when pressure is reduced. The refrigerant picks up heat as it evaporates and it returns to the compressor to repeat the cycle. A few refrigeration units use gas (either natural gas or LPG) in an absorption process that does not use a compressor. The gas is burned to heat a chemical solution in which the refrigerant has been absorbed. Heating drives off there frigerant which is later condensed. The condensed refrigerant evaporates by a release of pressure, and it picks up heat as it evaporates. The evaporated refrigerant is then absorbed back into the chemical solution, the heat is removed from the solution and discharged as waste heat, and the process repeats itself. By definition, refrigerators, freezers, and air-conditioning equipment all contain refrigeration units.
Industry:Energy
通常発生装置の容量最高の毎日、毎週、または季節の負荷の時間帯に操作のために予約。ピーク容量として特定の回で、24 時間ごとに負荷を提供する他の回でいくつか発生装置を操作することが。
Industry:Energy
ディーゼル燃料、ディーゼル燃料の石油原料と coprocessed と高度なバイオ燃料の要件を満たす再生可能エネルギー源から生成される成分をブレンドします。
Industry:Energy
エンドユース消費データ個々 の電気器具の録音デバイスがアプライアンスによって消費されるエネルギーの量を測定するアプライアンスに接続されています。
Industry:Energy