畢設基本摘要
長沙市某科研大廈空調工程設計
摘要
本設計為長沙市某科研大廈舒適性空調系統，設計內容包括冷負荷計算，方案的比較，空氣處理方案的選擇，空調末端設備選型，水管路和風管路系統的設計計算及附屬設備的選型，并進行設計說明書的編制和施工圖的繪制。設計堅持可持續發展理論，樹立了節約能源和全壽命周期成本分析的科學理念，從節能和環保出發，綜合考慮建筑結構、使用要求、環境條件，在系統的選擇、設備的選配及系統的運行控制等方面采取一定的節能措施，使系統在各種工況下均能高效節能運行。根據節能設計標準要求，結合計算軟件，采用諧波法對整個大樓的冷負荷進行逐時計算；分析負荷日變化和全年變化情況，通過多個方案的可行性論證和經濟性比較，結合實際的能源政策，選用了水冷式螺桿機組加燃氣熱水鍋爐的冷熱源運行策略�？照{系統采用風機盤管加獨立新風的空氣-水系統。在設計計算的基礎上，還進一步分析比較了不同建筑維護結構、設計參數、空調方案等對能耗的影響，提出空調系統各環節存在的問題及節能潛力。
關鍵詞：舒適性空調，可持續發展，建筑節能，室內空氣品質
HVAC design of Technology building of Changsha
Abstract
This design is about the concertrated air conditioning system of some Technology building , including a series of design contents such as cooling load calculation, scheme comparision,selecting and calculating the water system and ventilation system, as well as selecting air terminal devices and appurtenances, and working out the design instruction and drawing the construction drawings employing CAD. During the design , I adhere to sustainable development ,set a scientific conctept of resources and a total life cycle cost analysis. Based on the energy conservation and environmental protection ,I consider intergatedly into the building structures ,the feature of demands ,and the environment conditions. Some energysaving measures are adopted during the choice of system scheme ,equipment matching and operational control to achieve high efficiency in various operating conditions . According to energy-efficient design standards , the cooling load of the whole building is calculated with the harmonic wave method, combining to computer software. Water cooled screw rod unit is used to supply the cooled air conditioning water, while using gas-fired hot water boilder as the heat source. This scheme is determinated according to the feasibility analysis and economical comparision of different choices, energy policy ect. Fan coil unit and the independent fresh air system is the main choice in the design. Based on the design, further comparative analysis of impact of different architectural envelope thermal characteristics ,design parameters, air conditioning scheme on the energy consumption . Points out the energy consumption fearturesand the potentials of energy saving.
Key words: comfortable air condition,sustainable development,building energy efficiency,in door air quality
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